Patent Publication Number: US-2023155095-A1

Title: Light-emitting device, light source device, and method for manufacturing light-emitting device

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims priority to Japanese Patent Application No. 2021-186697, filed on Nov. 16, 2021, and Japanese Patent Application No. 2022-173751, filed on Oct. 28, 2022, the disclosures of which are hereby incorporated by reference in their entirety. 
     BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The present disclosure relates to a light-emitting device, a light source device, and a method for manufacturing the light-emitting device. 
     Discussion of the Background 
     An oval light-emitting device is known as a light-emitting device. For example, Japanese Patent Publication No. 2010-040910 describes an LED module in which a curvature of an emitting surface in a zx plane is less than a curvature in a yz plane. Further, for example, Japanese Patent Publication No. 2002-094129 describes an optical device in which a part of light emitted from a light-emitting element is totally reflected in a total reflective region, then is reflected by a light reflective portion, and is emitted forward from the total reflective region. 
     SUMMARY 
     An embodiment according to the present disclosure provides a light-emitting device and a light source device having narrowed light distribution, and a method for manufacturing the light-emitting device. 
     A light-emitting device disclosed in an embodiment includes: a light-emitting element, a first lead, a second lead, and a mold resin member. The light-emitting element is mounted on the first lead. The second lead is electrically connected to the light-emitting element via a conductive member, and disposed away from the first lead along a first direction. The mold resin member directly or indirectly covers the light-emitting element. The mold resin member includes a lens portion located above the light-emitting element, a fixing portion configured to fix the first lead and the second lead, and an inclined portion. The inclined portion is located between the lens portion and the fixing portion, and the inclined portion has at least a portion spreading and inclined from a boundary between the inclined portion and the lens portion toward a boundary between the inclined portion and the fixing portion. The light-emitting element is disposed inside the fixing portion. 
     A method for manufacturing a light-emitting device disclosed in an embodiment includes: providing an intermediate body in which light-emitting elements mounted on first leads of linked bodies, the linked bodies comprising one or more pairs of the first lead and a second lead with a linked portion, and the light-emitting element and the second lead are electrically connected via a conductive member in the one or more pairs; supplying a material of a mold resin member in recesses in a casting case; inserting the intermediate body into the recesses in which the material of the mold resin member is supplied, and forming the mold resin member configured to directly or indirectly cover the light-emitting elements for each pair of the first lead and the second lead; and individually separating by cutting off the linked portion of the linked body so as to make the pairs each comprising the first lead and the second lead. In the supplying of the material of the mold resin member in the recess, the casting case has a lens portion opening on a bottom side of the casting case, an inclined portion opening connected from the lens portion opening and spreading and inclined toward an opening side of the casting case, and a fixing portion opening connected from the inclined portion opening toward the opening side of the casting case. In the forming of the mold resin member, the light-emitting element is disposed inside the fixing portion opening. 
     A light source device disclosed in an embodiment includes: a plurality of light-emitting devices; and a mounting substrate on which the plurality of light-emitting devices are mounted. The plurality of light-emitting devices are each the above-described light-emitting device. The inclined portion of at least one of the plurality of light-emitting devices is disposed with the lens portion interposed therein in the first direction. The plurality of light-emitting devices are disposed in a direction parallel to the first direction. 
     An embodiment of the present disclosure can provide a light-emitting device and a light source device having narrowed light distribution, and a method for manufacturing the light-emitting device. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG.  1    is a schematic perspective view exemplifying a light source device in which light-emitting devices according to an embodiment are arrayed. 
         FIG.  2 A  is a schematic perspective view exemplifying a light-emitting device according to the embodiment. 
         FIG.  2 B  is a schematic perspective view exemplifying a part of the light-emitting device according to the embodiment. 
         FIG.  2 C  is a schematic perspective view illustrating an enlarged part of  FIG.  2 B  except for a mold resin member. 
         FIG.  3 A  is a schematic lateral side view exemplifying a part of the light-emitting device according to the embodiment. 
         FIG.  3 B  is a schematic lateral side view exemplifying a part of the light-emitting device according to the embodiment. 
         FIG.  3 C  is a schematic plan view exemplifying a part of the light-emitting device according to the embodiment. 
         FIG.  4 A  is a schematic cross-sectional view exemplifying a part of a cross section taken along a line IVA-IVA in  FIG.  3 C  except for a first lead, a second lead, and a conductive member. 
         FIG.  4 B  is a schematic cross-sectional view exemplifying light from a light-emitting element in  FIG.  4 A . 
         FIG.  5 A  is a schematic cross-sectional view exemplifying a part of a first modification example of an inclined portion. 
         FIG.  5 B  is a schematic cross-sectional view exemplifying a part of a second modification example of the inclined portion. 
         FIG.  5 C  is a schematic cross-sectional view exemplifying a case in which a cup portion is not included in  FIG.  5 B . 
         FIG.  6 A  is a schematic perspective view exemplifying a modification example of a fixing portion. 
         FIG.  6 B  is a schematic plan view exemplifying the modification example of the fixing portion. 
         FIG.  6 C  is a schematic plan view illustrating a modification example of a lens portion and the fixing portion in a second direction. 
         FIG.  6 D  is a schematic plan view illustrating a modification example of the lens portion and the fixing portion in the second direction. 
         FIG.  6 E  is a schematic plan view illustrating a modification example of the lens portion and the fixing portion in the second direction. 
         FIG.  7    is a flowchart exemplifying a method for manufacturing the light-emitting device according to the embodiment. 
         FIG.  8 A  is a schematic lateral side view exemplifying a part of a linked body provided in a step of the method for manufacturing the light-emitting device according to the embodiment. 
         FIG.  8 B  is a schematic lateral side view exemplifying a part of an intermediate body in which the light-emitting elements are mounted on the linked body and connected to the first lead and the second lead with the conductive member in the step of the method for manufacturing the light-emitting device according to the embodiment. 
         FIG.  8 C  is a schematic lateral side view exemplifying a part of a state where the intermediate body is inserted into a recess of a casting case in which a material of the mold resin member is supplied in the step of the method for manufacturing the light-emitting device according to the embodiment. 
         FIG.  8 D  is a schematic lateral side view exemplifying a part acquired by cutting off and individually separating a linked portion in the step of the method for manufacturing the light-emitting device according to the embodiment. 
         FIG.  9 A  is a schematic front view exemplifying the light source device according to the embodiment. 
         FIG.  9 B  is a schematic cross-sectional view exemplifying an enlarged part of the light source device according to the embodiment. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     Embodiments will be described below with reference to the drawings. However, the embodiments described below are an example of a light-emitting device, light source device and a method for manufacturing the light-emitting device for embodying a technical idea according to the present disclosure, and are not limited to the following. Further, dimensions, materials, shapes, relative arrangements, or the like of components described in the embodiment are not intended to limit the scope of the present invention thereto, unless otherwise specified, and are merely exemplary. Note that, size, positional relationship, and the like of members illustrated in the drawings can be exaggerated or simplified for clarity of description. Further, in the embodiments, “cover” implies not only a case with direct contact, but also implies a case with indirect contact, that is, covering with other members between, for example. Further, an X direction refers to a direction along an X axis, a Y direction refers to a direction along a Y axis, and a Z direction refers to a direction along a Z-axis direction. A positive direction particularly refers to a direction toward a +side in each of the X, Y, and Z directions. A negative direction particularly refers to a direction toward a −side in each of the X, Y, and Z directions. A plane including the X direction and the Z direction is referred to as an XZ plane, a plane including the X direction and the Y direction is referred to as an XY plane, and a plane including the Y direction and the Z direction is referred to as a YZ plane. 
     Light-Emitting Device 
     A light-emitting device  100  according to an embodiment will be described with reference to  FIGS.  1  to  4 B .  FIG.  1    is a schematic perspective view exemplifying a light source device  200  in which the light-emitting devices  100  are arrayed.  FIG.  2 A  is a schematic perspective view exemplifying the light-emitting device  100 .  FIG.  2 B  is a schematic perspective view exemplifying a part of the light-emitting device  100 .  FIG.  2 C  is a schematic perspective view illustrating an enlarged part of  FIG.  2 B  except for a mold resin member  40 .  FIG.  3 A  is a schematic lateral side view exemplifying a part of the light-emitting device  100 .  FIG.  3 B  is a schematic lateral side view exemplifying a part of the light-emitting device  100 .  FIG.  3 C  is a schematic plan view exemplifying a part of the light-emitting device  100 .  FIGS.  4 A and  4 B  are schematic cross-sectional views exemplifying a part of a cross section taken along a line IVA-IVA in  FIG.  3 C  except for a first lead  12 , a second lead  11 , and conductive members  21  and  22 , and do not illustrate hatching. The light-emitting device  100  can be used in, for example, the light source device  200  described below. The light source device  200  is a device in which a plurality of the light-emitting devices  100  are aligned on a plane. Each of the configurations of the light-emitting device  100  will be described below. 
     The light-emitting device  100  includes a light-emitting element  20 , the first lead  12  on which the light-emitting element  20  is mounted, the second lead  11  that is electrically connected to the light-emitting element  20  via the conductive member  21  and is disposed away from the first lead  12  along the X direction being a first direction, and the mold resin member  40  that directly or indirectly covers the light-emitting element  20 . The mold resin member  40  includes a lens portion  43  located above the light-emitting element  20 , a fixing portion  41  that fixes the first lead  12  and the second lead  11 , and an inclined portion  42  that is located between the lens portion  43  and the fixing portion  41  and having at least a portion spreading and inclined from a boundary with the lens portion  43  toward a boundary with the fixing portion  41 . The light-emitting element  20  is disposed inside the fixing portion  41 . Note that, in the drawings, the first direction being a direction that connects the first lead  12  and the second lead  11  indicates the X direction, a second direction orthogonal to the X direction being the first direction indicates the Z direction, and a third direction that is orthogonal to the X direction being the first direction and the Z direction being the second direction and is a direction in which the first lead  12  and the second lead  11  extend indicates the Y direction. The Y direction being the third direction may be described as an up-and-down direction. “An upward direction” referred in the present disclosure is indicated as a positive Y direction in the drawings. 
     First Lead and Second Lead 
     The first lead  12  and the second lead  11  serve as a part of a wiring between the light-emitting element  20  and the outside. The light-emitting element  20  is mounted on the first lead  12 . The second lead  11  is electrically connected to the light-emitting element  20  via the conductive member  21 , and is disposed away from the first lead  12  along the X direction. The first lead  12  is, for example, a cathode electrode, and the second lead  11  is, for example, an anode electrode. Note that, as an example, the second lead  11  is formed longer in the Y direction than the first lead  12 . The first lead  12  can be formed longer in the Y direction than the second lead  11 . In the light-emitting device  100 , the first lead  12  includes a cup portion  121  described below. The light-emitting element  20  is mounted on the cup portion  121 . The first lead  12  and the second lead  11  extend downward from above the fixing portion  41  of the mold resin member  40  described below. Then, a part of the first lead  12  and the second lead  11  protrudes from a lower surface of the fixing portion  41  and have a predetermined length exposed from the fixing portion  41 . The first lead  12  and the second lead  11  include connection end portions  114  and  124  exposed from the mold resin member  40 , respectively. In the first lead  12  and the second lead  11 , silver can be plated from a perspective of an effective use of light reflection. From a perspective of suppressing migration of silver, a lead on which the light-emitting element  20  is mounted is preferably used as a cathode electrode. 
     The first lead  12  includes the cup portion  121 , a first bottom portion  122  continuous with the cup portion  121 , a first linked portion  123  continuous with the first bottom portion  122 , and the first connection end portion  124  continuous with the first linked portion  123 . The cup portion  121  and the first bottom portion  122  are continuous in at least the Y direction or the X direction. The first bottom portion  122 , the first linked portion  123 , and the first connection end portion  124  are located in this order from the positive Y direction toward a negative Y direction. For example, an upper end of the first bottom portion  122  can be located above the cup portion  121 . Further, the upper end of the first bottom portion  122  and an upper edge of the cup portion  121  can have the same height. Furthermore, the upper end of the first bottom portion  122  can be located below the upper edge of the cup portion  121 . 
     The cup portion  121  includes a recessed portion  15  defined by a bottom flat surface  151  facing upward and a lateral wall  155  surrounding the bottom flat surface  151 . The light-emitting element  20  is mounted on the bottom flat surface  151  of the recessed portion  15 . In the recessed portion  15 , an inner surface  152  of the lateral wall  155  is inclined with an opening that spreads upward. For example, the opening of the recessed portion  15  is formed in a substantially circular shape or a substantially elliptical shape in a plan view. The plan view according to the present embodiment indicates a field of view when viewed from the positive Y direction. 
     The height from the bottom flat surface  151  of the recessed portion  15  to an upper end portion of the lateral wall  155  (a part of the upper edge of the cup portion), in a direction perpendicular to the bottom flat surface  151  of the recessed portion  15  is higher than a height of the light-emitting element  20 . The height H 5  is preferably in a range from 0.2 mm to 0.4 mm, for example. When the height H 5  is equal to or more than 0.2 mm, the inner surface  152  of the recessed portion  15  reflects light emitted from the lateral sides of the light-emitting element  20 , and thus light extraction upward from the light-emitting element  20  can be improved. On the other hand, when the height H 5  is equal to or less than 0.4 mm, reflection of the light emitted from the light-emitting element  20  by the inner surface  152  of the recessed portion  15  for multiple times can be suppressed, and thus the light extraction upward from the light-emitting element  20  can be improved. From a perspective of providing the effect described above, the height H 5  is more preferably in a range from 0.2 mm to 0.37 mm. Note that a light-transmissive member  30  described below can be disposed as a portion of the mold resin member  40  in the recessed portion  15 . 
     The first bottom portion  122  is elongated in a long shape. Further, an upper portion of the first bottom portion  122  covered with the mold resin member  40  includes a stepped portion bent in a direction approaching the second lead  11 . Further, the upper portion of the first bottom portion  122  is disposed adjacent to the cup portion  121 . An upper end of the first bottom portion  122  is preferably formed flat such that another end of the conductive member  22  connected to the light-emitting element  20  can be connected. The first bottom portion  122  is provided with the stepped portion downward from an upper portion adjacent to the cup portion  121 , and is continuous with a linear portion via the stepped portion. A lower end of the linear portion is disposed continuous with the first linked portion  123 . The first linked portion  123  can be formed wide in the X direction. Then, the first connection end portion  124  having the same width and the same thickness as those of the lower end of the first bottom portion  122  is disposed at a lower end of the first linked portion  123 . The first connection end portion  124  can be linearly formed in the Y direction. 
     The second lead  11  includes a second bottom portion  112 , a second linked portion  113  continuous with the second bottom portion  112 , and the second connection end portion  114  continuous with the second linked portion  113 . An upper portion of the second bottom portion  112  is disposed apart from the first bottom portion  122  in the X direction so as not to be electrically shorted. Here, when viewed from the Z direction, a shape of the second bottom portion  112  and the first bottom portion  122  is a substantially bilaterally symmetric shape. An upper end of the second bottom portion  112  is preferably formed flat such that another end of the conductive member  21  connected to the light-emitting element  20  can be connected. An upper portion of the second bottom portion  112  being covered with the mold resin member  40  and facing the first bottom portion  122  includes a stepped portion bent in a direction approaching the first lead  12 . A lower end side of the second bottom portion  112  is linearly formed, and is disposed continuous with the second linked portion  113 . The second linked portion  113  can be formed wide in the X direction. Then, the second connection end portion  114  having the same width and the same thickness as those of a lower end of the second bottom portion  112  is disposed at a lower end of the second linked portion  113 . The second connection end portion  114  can be linearly formed in the Y direction. The second connection end portion  114  can be formed longer than the first connection end portion  124 . Note that the first linked portion  123  and the second linked portion  113  are disposed at the same height in the X direction. The first connection end portion  124  and the second connection end portion  114  are disposed in parallel. 
     Examples of a material of the first lead  12  and the second lead  11  include iron, copper, a copper-iron alloy, a copper-tin alloy, and aluminum, iron, copper, or a combination thereof that is subjected to copper plating, gold plating, or silver plating. For example, the cup portion  121  and the first bottom portion  122  of the first lead  12  and the second bottom portion  112  of the second lead  11  that are covered with the mold resin member  40  can be subjected to silver plating with copper plating as primary plating, and the first linked portion  123  and the first connection end portion  124  of the first lead  12 , and the second linked portion  113  and the second connection end portion  114  of the second lead  11  can be subjected to tin plating, copper plating, silver plating, or solder plating containing tin and/or copper. 
     Note that the substantially elliptical shape described in the present embodiment is not limited to a case of an elliptical shape in a strict sense such as a locus of points in which a sum of distances from two fixed points on one plane is constant, and includes a shape so as to be visible as close to the elliptical shape. For example, the substantially elliptical shape can be an oblong shape in which a circle is extended in one direction, an oval shape, a track shape for a track and field event, and the like. 
     Further, the substantially circular shape described in the present embodiment is not limited to a case of a circular shape in a strict sense such as a perfect circle, and includes a shape so as to be visible as close to the circular shape. For example, the substantially circular shape can be a circle distorted or deformed within a range of tolerance and error. 
     Light-Emitting Element 
     The light-emitting element  20  is mounted on the bottom flat surface  151  of the recessed portion  15 . Discretionary shape, size, and the like can be selected for the light-emitting element  20 . A shape of the light-emitting element  20  in the plan view is, for example, a square, a rectangle, or a hexagon. In terms of the color of the light emitted from the light-emitting element  20 , light with discretionary wavelength appropriate for application can be selected. For example, examples of the light-emitting element  20  of blue light (light having a peak wavelength in a range from 430 nm to 500 nm) or green light (light having a peak wavelength in a range from 500 nm to 570 nm) include those using a nitride-based semiconductor (In X Al Y Ga 1-X-Y N, 0≤X, 0≤Y, X+Y≤1), GaP, and the like. Examples of the light-emitting element  20  of red light (light having a peak wavelength in a range from 610 nm to 700 nm) include those using not only a nitride-based semiconductor element but also GaAlAs, AlInGaP, and the like. The height of the light-emitting element  20  is in a range from 0.15 mm to 0.5 mm, for example. 
     The light-emitting element  20  can include a pair of element electrodes on an upper surface  20 A, and can be face-up mounted on the bottom flat surface  151  of the recessed portion  15  of the first lead  12 . Here, one of the element electrodes of the light-emitting element  20  is bonded to the second lead  11  via the conductive member  21  such as a wire, and the other element electrode is bonded to the first lead  12  via the conductive member  22  such as a wire. The light-emitting element  20  can be face-down mounted. 
     Here, the light-emitting element  20  is disposed in the fixing portion  41  of the mold resin member  40 . Further, the light-emitting element  20  is disposed in a substantially center position of the fixing portion  41  and the lens portion  43  described below in the plan view. The substantially center position is not limited to the center in a strict sense, and includes a position so as to be visible as close to the center. For example, the substantially center position can be a position shifted from the center by 10% of a maximum diameter. 
     Mold Resin Member 
     The mold resin member  40  covers the first lead  12  and the second lead  11  while exposing the connection end portions  124  and  114 , and directly or indirectly covers the light-emitting element  20 . The mold resin member  40  is preferably formed solid. In a cross section of the light-emitting device  100 , the mold resin member  40  preferably fills from an outer surface of the first lead  12  and the second lead  11  to an inner surface of the mold resin member  40 . Note that a void can be included in a part of the mold resin member  40 . The mold resin member  40  protects the first lead  12 , the second lead  11 , the light-emitting element  20 , and the conductive members  21  and  22  such as the wire from an external environment, and fixes one end side of the first lead  12  and the second lead  11 . Further, the light-emitting device  100  can adjust a light distribution by adjusting a shape of the mold resin member  40 . 
     The mold resin member  40  includes the lens portion  43 , the inclined portion  42 , and the fixing portion  41  in this order from up to down in the Y direction. Here, the lens portion  43 , the inclined portion  42 , and the fixing portion  41  of the mold resin member  40  are continuously and integrally formed. For example, the lens portion  43  and the inclined portion  42  can be integrally formed, and the fixing portion  41  can be separately formed. 
     Fixing Portion 
     The fixing portion  41  is a portion located in a lowermost position in the mold resin member  40 . The light-emitting element  20  is covered near an upper end portion of the fixing portion  41 . An upper edge of the fixing portion  41  is located at the same height as the upper end portion of the recessed portion  15  or located above the upper end portion of the recessed portion  15 . The upper edge of the fixing portion  41  is located at the same height as the upper edge of the lateral wall of the recessed portion or located above the upper edge of the lateral wall of the recessed portion. Further, the fixing portion  41  preferably covers substantially the entire first bottom portion  122  of the first lead  12  and substantially the entire second bottom portion  112  of the second lead  11 , and expose the first linked portion  123  and the second linked portion  113 . 
     Here, the fixing portion  41  has a columnar shape extending in the Y direction, and the fixing portion  41  has the substantially elliptical shape with the X direction as a major axis in the plan view. A ratio of lengths of a long diameter and a short diameter of the substantially elliptical shape is, for example, approximately 1.3:1. 
     In the plan view, a length D 3  of the fixing portion  41  in the X direction being the first direction can be in a range from 3.4 mm to 4.4 mm, for example, and preferably in a range from 3.6 mm to 4.2 mm. Further, in the plan view, a length D 4  of the fixing portion  41  in the Z direction being the second direction can be in a range from 2.5 mm to 3.5 mm, for example, and preferably in a range from 2.7 mm to 3.3 mm. 
     A longest length H 4  of the mold resin member  40  in the Y direction being the third direction can be in a range from 5.5 mm to 9.5 mm, for example, and preferably in a range from 6.5 mm to 8.2 mm. 
     Lens Portion 
     The lens portion  43  is located in an uppermost position in the mold resin member  40 . The lens portion  43  is located above the light-emitting element  20 . The lens portion  43  is preferably located above the upper surface  20 A of the light-emitting element  20 . A part of light from the light-emitting element  20  is emitted to the outside of the light-emitting device  100  through the lens portion  43 . The lens portion  43  includes a curved surface protruding upward, and has, for example, a hemispherical shape protruding upward. The lens portion  43  can condense and output light from the light-emitting element  20  upward. 
     As an example, the lens portion  43  has the substantially elliptical shape close to the circular shape with the X direction as the major axis in the plan view. Here, in the light-emitting device  100 , both of the lens portion  43  and the fixing portion  41  have the elliptical shape in the plan view. 
     A longest length H 3  of the lens portion  43  in the Y direction being the third direction can be in a range from 0.5 mm to 3.5 mm, for example, and preferably in a range from 0.8 mm to 2.5 mm. 
     Here, in the plan view, the long diameter of the lens portion  43  is shorter than the long diameter of the fixing portion  41 , and the short diameter of the lens portion  43  is shorter than the short diameter of the fixing portion  41 . In other words, in the plan view, a length D 1  of the lens portion  43  is shorter than the length D 3  of the fixing portion  41  in the X direction, and a length D 2  of the lens portion  43  is shorter than the length D 4  of the fixing portion  41  in the Z direction. As shown in  FIG.  3 C , for example, the length D 1  of the lens portion  43  in the X direction is in a range from 2.3 mm to 3.3 mm, and the length D 2  of the lens portion  43  in the Z direction is in a range from 2.3 mm to 3.3 mm. A ratio of the length of the short diameter with respect to the long diameter of the lens portion  43  is greater than that of the fixing portion  41 , and the lens portion  43  has a shape closer to the substantially circular shape in the plan view. 
     In the plan view, an outer periphery of the fixing portion  41  is greater than an outer periphery of the lens portion  43 . In the plan view, the entire outer periphery of the lens portion  43  is located inside the outer periphery of the fixing portion  41 . Further, in the plan view, the center of the outer periphery of the lens portion  43  substantially overlaps the center of the outer periphery of the fixing portion  41 . The outer periphery of the fixing portion  41  is, for example, the upper edge of the fixing portion  41  located at a boundary with the inclined portion  42 . The outer periphery of the lens portion  43  is, for example, a lower edge of the lens portion  43  located at the boundary with the inclined portion  42 . 
     Inclined Portion 
     The inclined portion  42  is located between the lens portion  43  and the fixing portion  41 . The inclined portion  42  spreads from the lower edge of the lens portion  43  toward the fixing portion  41 . The inclined portion  42  is formed continuous with a surface of the lens portion  43  and a surface of the fixing portion  41 . Further, the lower edge of the lens portion  43  being the boundary between the inclined portion  42  and the lens portion  43 , and the upper edge of the fixing portion  41  being the boundary between the inclined portion  42  and the fixing portion  41  have different shapes or sizes. The inclined portion  42  is located above the upper edge of the lateral wall  155  of the recessed portion  15 . The boundary between the fixing portion  41  and the inclined portion  42  may or may not overlap the upper end portion of the lateral wall  155  of the recessed portion  15  when viewed from the X direction being the first direction or the Z direction the second direction. 
     The inclined portion  42  includes an inclined surface  420  that is a surface of the inclined portion  42  and is inclined with respect to the XZ plane. In the cross-sectional view, the inclined surface  420  may be or may not be curved. 
     As shown in  FIG.  3 C , the inclined surface  420  is located on a straight line that at least passes through a vertex of the lens portion  43  and is parallel to the X direction being the first direction. The inclined surface  420  can be located on a straight line that passes through a vertex of the lens portion  43  and is parallel to the Z direction being the second direction. The inclined surface  420  can be a straight line or curved line. 
     An inclination length is a length from an upper end to a lower end of the inclined surface  420  of the inclined portion  42  (from a connection point of the inclined portion  42  to the lens portion  43  to a connection point to the fixing portion  41 ) in a cross section along the Y direction and the X direction or the Z direction. Here, a surface including a vertex of the lens portion  43  is described as an example. In the cross section along the XY plane, the inclined portion  42  has an inclination length A 1 . In the cross section along the YZ plane, the inclined portion  42  has an inclination length A 2 . The inclination length A 1  is the same as the inclination length A 2  or longer than the inclination length A 2 . Here, the inclination length A 1  is longer than the inclination length A 2 . 
     Further, the inclined portion  42  has as an inclination angle that is an angle formed between a straight line connecting from the upper end to the lower end of the inclined surface  420  of the inclined portion  42 , and a straight line parallel to the Y direction passing through the connection point of the inclined portion  42  connected to the lens portion  43 . Here, the surface including the vertex of the lens portion  43  is described as an example. The inclination angle in the cross section along the XY plane is greater than the inclination angle in the cross section along the YZ plane. The inclined portion  42  has a reversed size relationship between the inclination angle described above and the angle formed between the straight line connecting from the upper end to the lower end of the inclined surface  420  of the inclined portion  42 , and a straight line parallel to the X direction or the Z direction passing through the connection point of the inclined portion  42  to the fixing portion  41 . An inclined cross-sectional area of the inclined portion  42  in the X direction is greater than an inclined cross-sectional area of the inclined portion  42  in the Z direction. Here, the inclined cross-sectional area refers to an area defined by three line segments in the YZ plane or YX plane including the vertex of the lens portion  43  described below. The three line segments are (i) a straight line being in parallel to the Y direction and passing through the connection point to the inclined portion  42 , (ii) a straight line or a curved line connecting the connection portion of the lens portion  43  to a connection point to the fixing portion  41 , and (iii) a straight line that is in parallel to the X direction or the Y direction and passes through a connection point of the inclined portion  42  to the fixing portion  41 . As shown in the lateral side view in  FIG.  3 A , the inclined portion  420  is located at the left and right sides of the lens portion  43 . Also as shown in the lateral side view in  FIG.  3 B , the inclined portion  420  is located at the left and light sides of the lens portion  43 . In such a way, the light-emitting device  100  can set the directional characteristic in the X direction so as to be symmetric on both sides of the light-emitting device  100 . Note that the inclined surface  420  of the inclined portion  42  surrounds the entire outer periphery of a lower end portion of the lens portion  43  here. The inclination of the inclination surface  420  in the X direction is more gentle than the inclination of the inclination surface  420  in the Z direction. The inclined surface  420  of the inclined portion  42  can be disposed such that its inclination is the same radially downward in the outer periphery of the lower end portion of the lens portion  43 . 
     As illustrated in  FIG.  4 A , in the cross section taken along the X direction being the first direction and the Y direction being the third direction, a connection point  421 E of the inclined portion  42  to the fixing portion  41  is located between a straight line L 1  passing through the upper end portion of the lateral wall  155  of the recessed portion  15  and being parallel to the X direction, and a straight line L 2  connecting an upper end portion  25 A, which is an intersection point between the upper surface  20 A and a lateral surface of the light-emitting element  20 , and an upper end portion  153 A of the lateral wall  155  of the recessed portion  15 . The connection point of the inclined portion  42  to the fixing portion  41  can be located closer to the straight line L 2 , such as a connection point  420 E illustrated in  FIG.  4 A , for example. The inclined surface  420  of the inclined portion  42  can be set to an angle at which light passing through the inclined portion  42  of the light emitted from the light-emitting element  20  travels in a direction parallel to the straight line L 1 , an angle at which the light travels below the straight line L 1 , or an angle at which the light can be totally reflected. The inclination can be set to the angle described above in the cross section along the X direction and the Y direction passing through the center of the lens portion  43  in the plan view. 
     Examples of a material of the mold resin member  40  include a transmissive resin, glass, and the like having good weather resistance, such as an epoxy resin, a urea resin, and silicone. The mold resin member  40  has transmissivity or a transparent body. The mold resin member  40  can contain a filler. The mold resin member  40  contains the filler, and thus a heat resistance of the molding resin can be improved. Examples of the filler include silicon oxide, and the like. 
     The mold resin member  40  can contain a coloring agent. For example, the mold resin member  40  contains a blue coloring agent, a green coloring agent, or a red coloring agent, and thus the light-emitting device  100  that emits blue light, the light-emitting device  100  that emits green light, and the light-emitting device  100  that emits red light can be achieved. By using the light-emitting devices  100 , the light source device  200  that can perform display in full color can be manufactured. 
     For example, copper phthalocyanine, C.I. Pigment Green 36, and N,N′-dimethyl-3,4:9,10-perylenebisdicarbimide can be used as the coloring agent. Further, the coloring agent containing any one of a pigment and a dye can be used. The pigment is not particularly limited, but there are pigments using, for example, an inorganic material and an organic material, and examples of the pigment include pigments using the following materials. 
     Examples of the inorganic material include colcothar (Fe 2 O 3 ), minium (Pb 3 O 4 ), titanium nickel antimony-based oxide, titanium nickel barium-based oxide, titanium chromium antimony-based oxide, titanium chromium niobium-based oxide, and the like. 
     Examples of the organic material include anthraquinone-based, azo-based, quinacridon-based, perylene-based, diketo-pyrrolo-pyrrole-based, monoazo-based, disazo-based, pyrazolone-based, benzimidazolone-based, quinoxaline-based, azomethine-based, isoindolinone-based, and isoindoline-based materials, and the like. 
     The dye is not particularly limited, but examples of the dye include anthraquinone-based dyes, methine-based dyes, azomethine-based dyes, oxazine-based dyes, azo-based dyes, styryl-based dyes, coumarin-based dyes, porphyrin-based dyes, dibenzofuranone-based dyes, diketo-pyroro-pyrrole-based dyes, rhodamine-based dyes, xanthene-based dyes, pyrromethene-based dyes, and the like. Note that it is preferable that the pigment and the dye do not basically convert a wavelength of the light from the light-emitting element  20  into a different wavelength. The reason is that, when a wavelength conversion member is contained, the wavelength conversion member is not affected as described below. 
     The mold resin member  40  can contain a light stabilizer. Examples of the light stabilizer include benzotriazole-based, benzophenone-based, salicylate-based, cyanoacrylate-based, and hindered amine-based light stabilizers, and the like. 
     The mold resin member  40  can contain a wavelength conversion member. Examples of the wavelength conversion member include a phosphor. Examples of the phosphor include yttrium aluminum garnet activated with cerium, lutetium aluminum garnet activated with cerium, terbium aluminum garnet activated with cerium, nitrogen-containing calcium aluminosilicate activated with one or both of europium and chromium, sialon activated with europium, silicate activated with europium, potassium silicate fluoride activated with manganese, a nitride phosphor activated with europium, a phosphor having a perovskite structure (for example, CsPb (F,Cl,Br,I) 3 ), a quantum dot phosphor (for example, CdSe, InP, AgInS 2 , or AgInSe 2 ), or the like. Note that the light-emitting device  100  can emit light having various colors by a combination of the light-emitting element  20  and the wavelength conversion member. 
     Operation of Light-Emitting Device 
     When the light-emitting device  100  is driven, a current is supplied from an external power source to the light-emitting element  20  via the first lead  12  and the second lead  11 , and the light-emitting element  20  emits light. Here, in the cross section taken along the X direction being the first direction and the Y direction being the third direction, traveling light of light emitted from the upper end portion  25 A being the intersection point between the upper surface  20 A and the lateral surface of the light-emitting element  20  is described as an example. 
     For example, light R 1  emitted upward from the upper end portion  25 A of the light-emitting element  20  travels to the lens portion  43 . Light R 2  laterally emitted from the upper end portion  25 A is reflected by the lateral wall  155 , changes a direction to an upper direction, and travels to the lens portion  43 . The light traveling to the lens portion  43  is output to the outside of the light-emitting device  100  by the lens portion  43 . 
     Light R 3  traveling above the upper end portion  153 A of the lateral wall  155  from the upper end portion  25 A travels to an inclined surface  421  of the inclined portion  42  being an interface with the outside. The light R 3  travels in a direction forming a traveling angle θ 0  with the straight line L 1 , and is incident on the inclined surface  421  at an incident angle θ 1 . Note that a part of the light R 3  is blocked by the lateral wall  155  of the recessed portion  15 . Here, the traveling angle θ 0  indicates an angle from a straight line L 111  being parallel to the upper surface  20 A of the light-emitting element  20  and passing through the upper end portion  25 A. The straight line L 111  and the straight line L 1  are parallel to each other. Therefore, the traveling angle θ 0  from the straight line L 111  and the traveling angle θ 0  from the straight line L 1  are the same. Further, the incident angle θ 1  is formed between a normal line L 11  normal to the inclined portion  42  at a point at which the light R 3  is incident on the inclined surface  421 , and the light R 3 . Here, the inclined surface  421  of the inclined portion  42  is an angle at which the light from the light-emitting element  20  can be totally reflected, that is, an angle at which the incident angle θ 1  is equal to or more than a critical angle, and thus the light R 3  is totally reflected by the inclined surface  421 , changes a direction to a lower direction, and travels in the direction. A waterproof member  70  described below is disposed below that absorbs the light, and can further suppress reflection. 
     The inclined surface  421  of the inclined portion  42  can have an angle at which the light can be totally reflected in the cross section along the X direction and the Y direction passing through the center of the lens portion  43  in the plan view. The cross section along the X direction and the Y direction passing through the center of the lens portion  43  includes a line connecting the vertex of the lens portion  43  and a center point of the lens portion  43  in the plan view. 
     The light-emitting device  100  totally reflects light at the inclined portion  42  adjacent to the lens portion  43 , and can narrow a light distribution in the X direction of the light-emitting device  100 . Accordingly, the light source device  200  in which the light-emitting device  100  is mounted can have a small viewing angle. 
     For example, when an epoxy resin and the like are used as the material of the mold resin member  40 , and an index of refraction of the mold resin member  40  is 1.5, the critical angle is 42 degrees under the condition in which the outside is air. The inclined surface  421  of the inclined portion  42  can be represented by, for example, a normal line inclination angle θ 3  being an angle formed between the normal line L 11  and the straight line L 1 . Further, the normal line inclination angle θ 3  can also be represented as a sum of the traveling angle θ 0  and the incident angle θ 1 . Thus, at each of the points of the inclined surface  421 , the inclined portion  42  is inclined such that magnitude of the normal line inclination angle θ 3  is equal to or more than a value acquired by adding 42 degrees to magnitude of the traveling angle θ 0 , and thus the light traveling from the light-emitting element  20  to the inclined surface  421  can be totally reflected. Note that the critical angle is an incident angle at which a refractive angle is 90 degrees. 
     The inclined portion  42  is located between the lens portion  43  located above the light-emitting element  20  and the fixing portion  41  in which the light-emitting element  20  is disposed, and the inclined surface  420  at least partially spreads from the boundary with the lens portion  43  toward the boundary with the fixing portion  41 . Thus, the size of the lens portion  43  can be adjusted independently from the fixing portion  41 , and a degree of freedom of setting the directional characteristic and the like of the light emitted from the light-emitting device  100  can be improved by using the inclined surface  420  of the inclined portion  42 . For example, when the light-emitting device  100  is used as a light source device, illumination on an unnecessary portion can be suppressed by narrowing the light distribution of the light of the light-emitting device  100  emitted in the X direction. 
     In the light-emitting device  100 , because the lens portion  43 , the inclined portion  42 , and the fixing portion  41  are integrally formed, an effect of a boundary surface between the lens portion  43 , the inclined portion  42 , and the fixing portion  41  with respect to a traveling path of light can be suppressed, and the light from the light-emitting element  20  can be effectively used. 
     In the light-emitting device  100 , in the plan view, because the inclined surface  420  of the inclined portion  42  is located on the straight line that passes through the vertex of the lens portion  43  and is in parallel to the X direction, the directional characteristic and the like can be adjusted in the X direction. Further, in the light-emitting device  100 , because the inclined surface  420  of the inclined portion  42  is located on the straight line that passes through the vertex of the lens portion  43  and is in parallel to the Z direction, the directional characteristic and the like can also be adjusted in the Z direction. 
     The inclination length A 1  is longer than the inclination length A 2 , and thus an area of the inclined surface  420  of the inclined portion  42  can be increased, and thus the degree of freedom of setting the directional characteristic of the light from the light-emitting element  20  in the inclined surface  420  of the inclined portion  42  can be improved. Further, the inclination angle in the cross section along the XY plane is greater than the inclination angle in the cross section along the YZ plane, and thus a blocking effect can be improved and the light distribution can be narrowed. In the light-emitting device  100 , the inclined cross-sectional area of the inclined portion  42  in the X direction is greater than the inclined cross-sectional area of the inclined portion  42  in the Z direction, and thus the light distribution in the X direction can be efficiently narrowed. In other words, because a height of the connection points of the inclined portion  42  to the fixing portion  41  is the same in the Y direction, the inclined cross-sectional area is increased when the connection point is longer in the Z direction or the X direction. In other words, this means that the inclination angle is increased, and the blocking effect can be improved and the light distribution can be narrowed. 
     In the light-emitting device  100 , the first lead  12  and the second lead  11  include the connection end portions  124  and  114  exposed from the mold resin member  40 , and thus the first lead  12  and the second lead  11  can be used as they are for connection to the outside. 
     In the light source device  200 , the light distribution of the light emitted from the light-emitting device  100  can be adjusted by changing only the outer periphery of the lens portion  43  without changing the outer periphery of the fixing portion  41 . For example, when the outer periphery of the fixing portion  41  is constant, a lens portion having a small periphery allows the light distribution to be small as compared to a lens portion having a greater periphery. In other words, in the light-emitting device  100 , the outer periphery of the fixing portion  41  in the plan view is greater than the outer periphery of the lens portion  43 , and thus spread of the light distribution of the lens portion  43  can be reduced. Thus, brightness of the light-emitting device  100  can be improved. 
     The light-emitting device  100  includes the inclined surface  420  being curved and inclined, and can thus finely change the directional characteristic and the like while smoothly changing the inclination. 
     In the light-emitting device  100 , the light-emitting element  20  is mounted on the bottom flat surface  151  of the recessed portion  151 , and thus light laterally traveling can be reflected upward by the lateral wall  155  of the recessed portion  15 , and the light distribution can be effectively narrowed. 
     In the light-emitting device  100 , the inclined portion  42  is located above the upper edge of the lateral wall  155  of the recessed portion  15 , and thus the directional characteristic and the like can be adjusted by effectively using the inclined surface  420  of the inclined portion  42 . 
     In the light-emitting device  100 , in the cross section taken along the X direction and the Y direction, the connection point of the inclined portion  42  to the fixing portion  41  is located between the straight line L 1  passing through the upper end portion of the lateral wall  155  of the recessed portion  15  and being parallel to the X direction, and the straight line L 2  connecting the upper end portion  25 A of the lateral surface of the light-emitting element  20  close to the inclined portion  42  and the upper end portion  153 A of the lateral wall  155  of the recessed portion  15 . Thus, light that does not travel above the lateral wall  155  can be reflected by the lateral wall  155 , and the inclined portion  42  can be disposed for light traveling above the lateral wall  155 . The light traveling above the lateral wall  155  is refracted or totally reflected by the inclined portion  42 . 
     In the light-emitting device  100 , the upper edge of the fixing portion  41  is located at the same height as the upper end portion of the recessed portion  15  or located above the upper end portion, and thus the fixing portion  41  can cover the recessed portion  15  to the lateral wall  155 , and the recessed portion  15  can be integrally fixed to the first lead  12  and the second lead  11 . 
     In the light-emitting device  100 , the lens portion  43  and the fixing portion  41  have the substantially elliptical shape in the plan view, and thus the directional characteristic and the like having anisotropy in a long diameter direction and a short diameter direction can be set. 
     In the light-emitting device  100 , the length in the X direction of the fixing portion  41  in the plan view is in a range from 3.4 mm to 4.4 mm, and preferably in a range from 3.6 mm to 4.2 mm, and the length in the Z direction is in a range from 2.5 mm to 3.5 mm, and preferably in a range from 2.7 mm to 3.3 mm. Thus, the mold resin member  40  in the X direction connecting the first lead  12  and the second lead  11  is thickened to ensure strength and the like, and the light-emitting device  100  can be aligned with increased mounting density in the Z direction when the light-emitting device  100  is mounted in the light source device  200 . 
     In the light-emitting device  100 , the longest length of the lens portion  43  in the Y direction is in a range from 0.5 mm to 3.5 mm, and preferably in a range from 0.8 mm to 2.5 mm, and thus the shape of the lens portion  43  can be freely set. 
     In the light-emitting device  100 , the longest length of the mold resin member  40  in the Y direction is in a rage from 5.5 mm to 9.5 mm, and preferably in a range from 6.5 mm to 8.2 mm, and thus a length H 1  of the fixing portion  41  enough to fix the first lead  12  and the second lead  11  can be ensured. Further, a length enough to protect the light-emitting element  20  and the like can be ensured by increasing an entry path against water and the like that enter from the outside via the first lead  12  and the second lead  11 . 
     Note that the inclined portion  42  preferably includes an inclined surface  420  that has substantially no protrusion and depression. The light-emitting device  100  can adjust the directional characteristic and the like by using a characteristic such as refraction and reflection by the surface having substantially no protrusion and depression. The inclined portion  42  can be formed by combining the inclined surfaces that has substantially no protrusion and depression and different inclination. 
     The inclined surface  420  of the inclined portion  42  can have the same inclination of the inclined surface  420  as that of the inclined surface facing in the X direction or the Z direction, or can have different inclinations on the first lead  12  side and the second lead  11  side, for example. 
     The inclined surface  420  of the inclined portion  42  can be provided on at least a part of the outer periphery of the lower end portion of the lens portion  43 . For example, an inclined surface  420  can be provided only on the lower end portion of the lens portion  43  on the second lead  11  side in the X direction. 
     The lens portion  43  can have the substantially elliptical shape with the X direction as a minor axis or the substantially circular shape in the plan view. The fixing portion  41  can have the substantially elliptical shape with the X direction as the minor axis, or the substantially circular shape in the plan view. Both of the shapes of the lens portion  43  and the fixing portion  41  in the plan view can be the substantially elliptical shape or the substantially circular shape, or one of these shapes can be the substantially elliptical shape and the other can be the substantially circular shape. 
     MODIFICATION EXAMPLES 
     Next, modification examples of the inclined portion will be described with reference to  FIGS.  5 A to  5 C .  FIG.  5 A  is a schematic cross-sectional view exemplifying a part of a light-emitting device  100 A according to a first modification example of the inclined portion.  FIG.  5 B  is a schematic cross-sectional view exemplifying a part of a light-emitting device  101  according to a second modification example of the inclined portion.  FIG.  5 C  is a schematic cross-sectional view exemplifying a part of a light-emitting device  102  that does not include the cup portion in the second modification example of the inclined portion.  FIGS.  5 A to  5 C  are schematic cross-sectional views exemplified except for the first lead  12 , the second lead  11 , and the conductive members  21  and  22 , and do not illustrate hatching. 
     Note that, in the cross section along the X direction and the Y direction passing through the center of the lens portion  43  in the plan view, light traveling along the cross section is described as an example. 
     The light-emitting device  100 A according to the first modification example of the inclined portion is different from the light-emitting device  100  in an inclined portion  42 A, and has a configuration as the same as or similar to the light-emitting device  100  in the other points. As illustrated in  FIG.  5 A , in the light-emitting device  100 A, a portion of the inclined surface  425  of the inclined portion  42 A overlaps in the X direction, with the upper end portion of the lateral wall  155  in the Y direction. A connection point  425 E of the inclined portion  42 A connecting to the fixing portion  41  is located on the straight line L 1  passing through the upper end portion of the lateral wall  155  of the recessed portion  15  and being parallel to the X direction. Note that a distance D 5  from the center of the bottom flat surface  151  of the recessed portion  15  to the surface of the fixing portion  41  in the X direction is the same as the distance D 5  in the light-emitting device  100 . Further, a positional relationship between the cup portion  121  and the lens portion  43  is the same as or similar to that of the light-emitting device  100 . 
     In the light-emitting device  100 A, in the cross section taken along the X direction being the first direction and the Y direction being the third direction, among the light emitted from the light-emitting element  20 , light passing through a connection point  425 S of the inclined portion  42 A, which is a point connected to the lens portion  43 , exits along a straight line passing through the connection point  425 S and being parallel to the X direction, or exits below the straight line parallel to the X direction. 
     Light RA is an example of light being emitted from the light-emitting element  20  and passing through the connection point  425 S of the inclined portion  42 A, which is a point connected to the lens portion  43 . Light RA 1  of the light RA exiting to the outside travels along the straight line passing through the connection point  425 S of the inclined portion  42 A, which is a point connected to the lens portion  43 , and being parallel to the X direction. By adjusting the inclined surface  425  of the inclined portion  42 A, light such as exiting light RA 2  can exit below the straight line parallel to the X direction. 
     In the light-emitting device  100 A, in the cross section taken along the X direction and the Y direction, among the light emitted from the light-emitting element  20 , the light passing through the connection point  425 S of the inclined portion  42 A, which is a point connected to the lens portion  43 , exits along the straight line passing through the connection point  425 S and being parallel to the X direction, or exits below the straight line parallel to the X direction. Thus, the light distribution in the X direction of the light-emitting device  100 A can be narrowed. 
     The light RA passes through the connection point  425 S of the inclined portion  42 A, which is a point connected to the lens portion  43 , from a position of the upper end portion  25 A of the lateral surface of the light-emitting element  20 . 
     Note that, in the cross section along the X direction and the Y direction passing through the center of the lens portion  43  in the plan view, the inclined surface  425  of the inclined portion  42 A can at least have an angle at which the light RA exits along the straight line passing through the connection point  425 S and being parallel to the X direction, or exits below the straight line parallel to the X direction. 
     Light RB is an example of light is emitted from the position of the upper end portion  25 A of the lateral surface of the light-emitting element  20 , passing through near the upper end portion  153 A of the lateral wall  155  of the recessed portion  15 , and traveling without being reflected by the lateral wall  155 . Light RC is an example of light reflected by the lateral wall  155 . The light RB is emitted to the outside passing through a point  425 B on the inclined surface  425  of the inclined portion  42 A. The inclined surface  425  of the inclined portion  42 A preferably has an angle at which light RB 1  of the light RB exiting to the outside travels in the X direction or below the X direction. 
     Next, the light-emitting device  101  according to the second modification example of the inclined portion will be described. The light-emitting device  101  is different from the light-emitting device  100  in that the light-transmissive member  30  described below is provided in the recessed portion  15  and in an inclined portion  42 L, and has a configuration as the same as or similar to the light-emitting device  100  in the other points. As illustrated in  FIG.  5 B , the light-emitting device  101  includes the light-transmissive member  30  filling the recessed portion  15  to a position of the upper end portion of the lateral wall  155 , and includes an upper surface  30 A of the light-transmissive member  30 . An inclined surface  422  of the inclined portion  42 L is provided to a position of the upper end portion of the lateral wall  155  in the Y direction. A connection point  422 E of the inclined portion  42 L, which is a point connected to the fixing portion  41  is located on the straight line L 1  passing through the upper end portion of the lateral wall  155  of the recessed portion  15  and being parallel to the X direction. Note that the distance D 5  from the center of the bottom flat surface  151  of the recessed portion  15  to the surface of the fixing portion  41  in the X direction is the same as that in the light-emitting device  100 . Further, a positional relationship between the cup portion  121  and the lens portion  43  is the same as or similar to that of the light-emitting device  100 . 
     In the light-emitting device  101 , in the cross section along the X direction and the Y direction, light traveling from the upper surface  30 A of the light-transmissive member  30  to the inclined surface  422  of the inclined portion  42 L is refracted to the X direction or below the X direction, and exits from the inclined surface  422  to the outside. 
     For example, light R 4  emitted upward from the upper surface  30 A of the light-transmissive member  30  travels to the lens portion  43 . The light traveling to the lens portion  43  is condensed upward by the lens portion  43 , and exits to the outside. 
     Light R 5  and R 6  traveling from the upper surface  30 A to the inclined surface  422  of the inclined portion  42 L is refracted at the inclined surface  422  and exits to the X direction or below the X direction. By adjusting the inclined surface  422  of the inclined portion  42 L, light such as emitted light R 52  and R 62  can be set as emitted light being refracted and traveling below the X direction. A refractive angle θ 2  of the exiting light R 52  and R 62  is greater than that of exiting light R 51  and R 61 . In other words, the refractive angle θ 2  of exiting light traveling downward is greater than that of exiting light traveling in the X direction. The inclined surface  422  of the inclined portion  42 L is set such that magnitude of the refractive angle θ 2  is equal to or more than the inclination angle θ 3  inclined to the normal line. Note that, as long as the exiting light is not refracted and exiting above the X direction, the exiting light can be totally reflected. 
     The light-emitting device  101  refracts light to the X direction or below the X direction at the inclined portion  42 L adjacent to the lens portion  43 . In this way, the light distribution in the X direction of the light-emitting device  101  can be narrowed. 
     In the light-emitting device  101 , the light advancing direction is changed by the light-transmissive member  30 , and thus light having a small traveling angle θ 0  travels without reflection by the lateral wall  155 . When the size of the light-emitting device is limited and, for example, the distance D 5  cannot be increased, an inclination that totally reflects the light having the small traveling angle θ 0  cannot be provided. Even in such a case, the light-emitting device  101  can emit refracted light to the X direction or below the X direction by the inclined portion  42 L and narrow the light distribution without changing the positional relationship between the cup portion  121  and the lens portion  43 , and the distance D 5 . 
     The light-transmissive member  30  is disposed in the recessed portion  15  and covers the light-emitting element  20 . Examples of a material of the light-transmissive member  30  include a transmissive resin, glass, and the like, such as an epoxy resin, a urea resin, an acrylic resin, and a silicone resin. The light-transmissive member  30  has transmissivity or a transparent body. The light-transmissive member  30  can contain a filler such as a diffusing material. Containing the filler in the light-transmissive member  30  can reduce a change in light distribution. Further, the light-transmissive member  30  can contain a coloring agent, a light stabilizer, a phosphor, and the like. For the coloring agent, the filler, the light stabilizer, and the phosphor, those described in the mold resin member  40  can be used. 
     The light-emitting device  101  includes the light-transmissive member  30  in the recessed portion  15 , and thus the mold resin member  40  does not directly contact the light-emitting element  20  and the mold resin member  40  is also not disposed near the light-emitting element  20 . Thus, deterioration of the mold resin member  40  due to heat from the light-emitting element  20  can be suppressed. In this way, a life of the light-emitting device  101  can be further increased. 
     Next, the light-emitting device  102  according to the second modification example of the inclined portion will be described. As illustrated in  FIG.  5 C , the light-emitting device  102  includes the inclined portion  42 L similar to that of the light-emitting device  101 . The light-emitting device  102  is different from the light-emitting device  101  in that the recessed portion  15  is not provided and the light-emitting element  20  is mounted on a die pad  126  formed on an upper end of the first lead  12 . Further, the light-transmissive member  30  is not disposed, and the mold resin member  40  directly covers the light-emitting element  20 . The light-emitting device  102  has a configuration as the same as or similar to the light-emitting device  101  in the other points. Light is emitted from the upper surface  20 A and the lateral surface of the light-emitting element  20 . In this case, a position of an upper surface of the die pad  126  is preferably adjusted so as to have substantially the same height as that of a position of the connection point  422 E of the inclined portion  42 L to the fixing portion  41 . 
     For example, light R 7 , R 8 , and R 9  emitted from a lower end portion  25 B of the light-emitting element  20  travels similarly to the light R 4 , R 5 , and R 6  described in the light-emitting device  101 , and exits to the outside. The light-emitting device  102  does not include the recessed portion  15 , and thus light emitted from the lower end portion  25 B of the light-emitting element  20  is described as an example. The reason is that the light emitted from the lower end portion  25 B has the greatest traveling angle. 
     In the light-emitting device  102 , because the light-emitting element  20  is not surrounded by the lateral wall  155  of the recessed portion  15 , the light having the small traveling angle θ 0  travels without reflection similarly to the light-emitting device  101 . Similarly to the light-emitting device  101 , the light-emitting device  102  refracts light to the X direction or below the X direction at the inclined portion  42 L adjacent to the lens portion  43 . In this way, the light distribution in the X direction of the light-emitting device  102  can be narrowed. 
     Note that the upper surface  20 A of the light-emitting element  20  can be set in the position of the lower end portion of the inclined portion  42 L by adjusting a position of the upper end portion of the fixing portion  41  without adjusting the die pad  126 . 
     Next, a modification example of the fixing portion and a modification example of the size relationship between the lens portion and the fixing portion will be described with reference to  FIGS.  6 A to  6 D . A point other than the fixing portion and the size relationship between the lens portion and the fixing portion has a configuration the same as or similar to the light-emitting devices  100  and  101 .  FIGS.  6 A and  6 B  are respectively a schematic perspective view and a schematic plan view exemplifying a light-emitting device  130  according to the modification example of the fixing portion.  FIGS.  6 C and  6 D  are schematic plan views illustrating light-emitting devices  140 A and  140 B according to the modification example of the size relationship between the lens portion and the fixing portion in the Z direction being the second direction. 
     As shown in  FIG.  6 B , in the light-emitting device  130 , an end portion of a fixing portion  41 S in the X direction is formed in a planar shape. Further, in the plan view, an outer periphery of the fixing portion  41 S includes a linear portion along the Z direction. In the fixing portion  41 S, the linear portion includes a lateral flat surface. A length D 6  of the linear portion is approximately ⅕ of the longest length D 4  in the Z direction. The length D 6  can be, for example, approximately ⅘ of the length D 4 . In the plan view, the length D 1 , D 2 , D 3 , and D 4  are respectively the same as the length D 1 , D 2 , D 3 , and D 4  of the light-emitting device  100 . 
     As shown in  FIG.  6 A , an inclined portion  42 S is formed continuous with the fixing portion  41 S whose outer periphery of the upper end portion includes the linear portion along the Z direction. Similarly to the light-emitting device  100 , an inclined surface  420 S of the inclined portion  42 S has an angle at which the light from the light-emitting element  20  can be totally reflected. Alternatively, the inclination has an angle at which the light can be refracted in parallel with or below the X direction. 
     In comparison to a case in which the lower end portion of the inclined portion has the substantially elliptical shape, the entire linear portion of the inclined portion  42 S in the light-emitting device  130  can have an angle of the inclination of the inclined portion at which the light is totally reflected or refracted in parallel with or below the X direction. 
     The outer periphery of the lower end portion of the inclined portion  42 S includes the linear portion along the Z direction, and thus the light distribution in the X direction of the light-emitting device  130  can be narrowed, and whose viewing angle in a direction forming, for example, 45 degrees with the X direction. 
     As shown in  FIG.  6 C , the length D 2  of the lens portion  43  in the Z direction in the plan view can be the same as the length D 4  of the fixing portion  41 . In the light-emitting device  140 A, the inclined surface  420  of the inclined portion  42  is disposed only in the X direction. The lens portion  43  has the same length as that of the fixing portion  41  in the Z direction. The light-emitting device  140 A in which the lens portion  43  and the fixing portion  41  are connected without interposing the inclination of the inclined portion  42  in the Z direction is exemplified. The length D 1 , D 3 , and D 4  of the light-emitting device  140 A are respectively the same as the length D 1 , D 3 , and D 4  of the light-emitting device  100 . 
     Further, as shown in  FIG.  6 D , the length D 2  of the lens portion  43  in the Z direction in the plan view can be longer than the length D 4  of the fixing portion  41 . The light-emitting device  140 B in which the inclination surface  420  of the inclined portion  42  is disposed in the X direction, the lens portion  43  is longer than the fixing portion  41  in the Z direction, and the fixing portion  41  is connected below the lens portion  43  is exemplified. Note that the light-emitting devices  140 A and  140 B can be combined with the linear portion of the fixing portion  41 S in the light-emitting device  130 . For example, the length D 2  of the lens portion  43  in the Z direction is in a range from 2.3 mm to 3.3 mm. The length D 1 , D 3 , and D 4  of the light-emitting device  140 B are respectively the same as the length D 1 , D 3 , and D 4  of the light-emitting device  100 . 
     In the light-emitting devices  140 A and  140 B, the length D 2  of the lens portion  43  in the Z direction in the plan view is equal to or longer than the length D 4  of the fixing portion  41 , and thus a degree of freedom for adjusting the directional characteristic and the like can be further improved. Further, by reducing the size of the fixing portion  41 , mounting density in the light source device  200  described below can be improved. 
     As shown in  FIG.  6 E , the lens portion  43  can have a long axis in the Z direction. For example, in the lens portion  43  of the light-emitting device  140 C, the length D 1  in the X direction is in a range from 1.9 mm to 2.9 mm, and the length D 2  in the Z direction is in a range from 2.3 mm to 3.3 mm. Accordingly, the light distribution in the X direction can be narrowed. The length D 1 , D 3 , and D 4  of the light-emitting device  140 C are respectively the same as the length D 1 , D 3 , and D 4  of the light-emitting device  100 . 
     Method for Manufacturing Light-Emitting Device 
     Next, the method for manufacturing the light-emitting device according to the embodiment will be described with reference to  FIGS.  7  to  8 D .  FIG.  7    is a flowchart exemplifying the method for manufacturing the light-emitting device  100 .  FIG.  8 A  is a schematic lateral side view exemplifying a part of a linked body  300  provided in the method for manufacturing the light-emitting device  100 .  FIG.  8 B  is a schematic lateral side view exemplifying a part of an intermediate body  400  in which the light-emitting elements  20  are mounted on the linked body  300  and connected to the first lead  12  and the second lead  11  with the conductive members  21  and  22  in the method for manufacturing the light-emitting device  100 .  FIG.  8 C  is a schematic lateral side view exemplifying a part of a state where the intermediate body  400  is inserted into a recess C 40  of a casting case C 01  filled with a material  40 A of the mold resin member in the method for manufacturing the light-emitting device  100 .  FIG.  8 D  is a schematic lateral side view exemplifying a part acquired by cutting off and individually separating a linked portion  310  in the method for manufacturing the light-emitting device  100 . 
     The method for manufacturing the light-emitting device  100  includes: step S 10  of providing an intermediate body  400  in which light-emitting elements  20  mounted on first leads  12  of linked bodies  400  comprising one or more pairs of the first lead  12  and a second lead  11  with a linked portion 310  , and the light-emitting element  20  and the second lead  11  are electrically connected via a conductive member  21  in the one or more pairs; step S 20  of supplying a material  40 S of a mold resin member in recesses C 40  in a casting case C 01 ; step S 30  of inserting the intermediate body  400  into the recesses C 40  in which the material  40 A of the mold resin member is supplied, and forming the mold resin member configured to directly or indirectly cover the light-emitting elements  20  for each pair of the first lead  12  and the second lead  11 ; and individually separating S 40  by cutting off the linked portion  310  of the linked body  300  so as to make the pairs each comprising the first  12  lead and the second lead  11  In step S 20  of the supplying of the material  40 A of the mold resin member in the recess, the casting case C 01  has a lens portion opening C 43  on a bottom side of the casting case C 01 , an inclined portion opening C 42  connected from the lens portion opening C 43  and spreading and inclined toward an opening side of the casting case C 01 , and a fixing portion opening C 41 connected from the inclined portion opening C 42  toward the opening side of the casting case C 01 . In step S 30  of forming the mold resin member  40 , the light-emitting element  20  is disposed inside the fixing portion opening C 41 . 
     Step of Providing Intermediate Body 
     Step S 10  of providing an intermediate body is a step of providing the intermediate body  400  before the mold resin member  40  is provided. Step S 10  of providing an intermediate body includes step S 11  of providing a linked body, step S 12  of mounting a light-emitting element, and step S 13  of connecting a conductive member. 
     Step S 11  of providing a linked body is a step of providing the linked body  300  acquired by repeatedly linking the pair of the first lead  12  and the second lead  11  with the linked portion  310 . In this step, for example, the first lead  12  and the second lead  11  shaped into a desired shape are formed on a base frame. 
     Step S 12  of mounting a light-emitting element is a step of mounting the light-emitting elements  20  on the linked body  300 . In this step, the light-emitting element  20  is mounted on the bottom flat surface  151  of the recessed portion  15  of the cup portion  121  of the first lead  12  via an adhesive member. 
     Step S 13  of connecting a conductive member is a step of electrically connecting the light-emitting element  20 , and the first lead  12  and the second lead  11  via the conductive members  21  and  22  such as the wire. In this step, one of the element electrodes of the light-emitting element  20  is connected to the first lead  12  via the conductive member  22 , and the other element electrode is connected to the second lead  11  via the conductive member  21 . 
     Step S 10  of providing an intermediate body can be provided with step S 14  of forming a light-transmissive member after step S 13  of connecting a conductive member. In step S 14 , the material of the light-transmissive member prior to curing is injected and cured in the recessed portion  15  to form the light-transmissive member  30  that covers the light-emitting element  20 . 
     Step of Supplying Material of Mold Resin Member 
     Step S 20  of supplying a material of a mold resin member is a step of supplying the material  40 A of the mold resin member prior to curing in the casting case C 01 . The casting case C 01  includes the plurality of recesses C 40  corresponding to a shape of the mold resin members  40  of the light-emitting device  100 . The casting case C 01  can be, for example, a die and the like. 
     Each of the recesses C 40  continuously includes, from the bottom side to the opening side of the recess C 40 , the lens portion opening C 43  corresponding to a shape of the lens portion  43  of the light-emitting device  100 , the inclined portion opening C 42  corresponding to a shape of the inclined portion  42 , and the fixing portion opening C 41  corresponding to a shape of the fixing portion  41 . 
     In the casting case C 01 , the bottom side of the recess C 40  is disposed vertically downward, and a predetermined amount of the material  40 A of the mold resin member prior to curing is injected from the opening side. 
     Step of Forming Mold Resin Member 
     Step S 30  of forming a mold resin member is a step of forming the mold resin member  40  for each pair of first lead  12  and the second lead  11 . In step S 30 , the intermediate body  400  is inserted into the recess C 40  in which the material  40 A of the mold resin member is supplied, and the mold resin member  40  that directly or indirectly covers the light-emitting element  20  is formed for each pair of the first lead  12  and the second lead  11 . 
     The intermediate body  400  is inserted, from a side on which the light-emitting element  20  is mounted, into the recess C 40  with the linked portion  310  exposed, and is fixed in a state where the light-emitting element  20  is disposed inside the fixing portion opening C 41 . The mold resin member  40  is formed by curing the material  40 A of the mold resin member by heating and the like, and the casting case C 01  is removed after curing. 
     Individually Separating Step 
     Individually separating step S 40  is a step of cutting off the linked portion  310  of the linked body  300 . The linked portion  310  is cut off so as to remain a part of the linked portion  310  on each of the first lead  12  and the second lead  11  as a protrusion. After cutting off the linked portion  310 , individually separated light-emitting devices  100  are provided. After individually separating step S 40 , the light-emitting device  100  is completed. 
     In the method for manufacturing the light-emitting device  100 , the pair of the first lead  12  and the second lead  11  can be held by the linked portion  310  of the linked body  300 . Further, in the linked body  300 , the pairs of first lead  12  and the second lead  11  are repeatedly linked, and thus a plurality of pairs can be collectively handled, and work can be efficiently performed. 
     In the method for manufacturing the light-emitting device  100 , the lens portion  43 , the inclined portion  42 , and the fixing portion  41  can be integrally formed by forming the mold resin member  40  by casting. Further, the mold resin member  40  having a predetermined surface shape can be repeatedly and stably formed by adjusting a shape of the recess C 40  of the casting case C 01 . 
     In the individually separating step of the method for manufacturing the light-emitting device  100 , the linked portions  310  can be cut off such that the first lead  12  and the second lead  11  include the first linked portion  123  and the second linked portion  113 . In this way, in the light-emitting device  100 , for example, when the connection end portions  124  and  114  are inserted into a mounting substrate  60  described below and the light-emitting devices  100  is aligned, positions of upper end portions of the lens portions  43  can be aligned by disposing lower surfaces of the first linked portions  123  and the second linked portions  113  to face the mounting substrate  60 . 
     Note that step S 20  of supplying a material of a mold resin member can be performed together with step S 30  of forming a next mold resin member. In other words, by supplying the material  40 A of the mold resin member in a state where the intermediate body  400  is disposed in the casting case C 01  including the plurality of recesses C 40 , the mold resin member  40  that directly or indirectly covers the light-emitting element  20  can be formed for each pair of the first lead  12  and the second lead  11  disposed inside the recess C 40  of the casting case C 01 . 
     Further, the light-emitting devices  101 ,  102 ,  100 A,  140 A, and  140 B can also be manufactured in a similar step by changing the shape of the recess C 40  of the casting case C 01 . Note that, in the light-emitting device  100 , the mold resin member  40  having a desired shape can be formed by shaving. 
     Next, the light source device  200  using the light-emitting device  100  will be described with reference to  FIGS.  9 A and  9 B .  FIG.  9 A  is a schematic front view exemplifying a part of the light source device  200 .  FIG.  9 B  is a schematic cross-sectional view exemplifying a state where the light-emitting device  100  is mounted on the light source device  200 . Note that the light-emitting devices  101 ,  102 ,  100 A,  140 A,  140 B, and the like described with reference to  FIGS.  3 A to  6 D  can be used instead of the light-emitting device  100 . 
     The light source device  200  includes the plurality of the light-emitting devices  100  aligned such that the lens portions  43  constitute a display surface, and can control turning on/off and brightness of each of the light-emitting devices  100 . Note that the up-and-down direction in the light-emitting device  100  is a direction perpendicular to the display surface of the light source device  200 . Further, the light-emitting device  100  is disposed such that the X direction is a lateral direction on the display surface of the light source device  200 . The inclined portion of the light-emitting device  100  is preferably disposed in parallel with the lateral direction of the display surface of the light source device  200 . For example, when the inclined portion  42  is disposed with the lens portion  43  interposed therein along the first direction in the light-emitting device  100 , the plurality of light-emitting devices are disposed in a direction parallel to the first direction. 
     Further, the plurality of light-emitting devices are preferably disposed in a plurality of rows in the light source device  200 . Further, one set of three light-emitting devices across adjacent rows of the plurality of rows is preferably mounted in a position where a straight line imaginarily connecting the centers of the three light-emitting devices in each set makes a triangle. Further, each set configured of three light-emitting devices across adjacent rows of the plurality of rows can be mounted while the straight line imaginarily connecting the centers of the three light-emitting devices in each set is parallel to the direction perpendicular to the display surface of the light source device. 
     The light-emitting devices  100  having different emission colors can be aligned in the light source device  200 . The light-emitting devices  100  can be a first light-emitting device  100   a  that emits blue light, a second light-emitting device  100   b  that emits green light, or a third light-emitting device  100   c  that emits red light. The mold resin members  40  can respectively contain, for example, blue, green, or red coloring agents. The light source device  200  that includes a plurality of sets of the light-emitting devices  100   a,    100   b,  and  100   c  having the three colors aligned as one pixel for each set, and can perform display in full color can be achieved. An arrangement order of the light-emitting devices  100   a,    100   b,  and  100   c  is not limited. Of the three light-emitting devices in each set, the light-emitting device  100   b  that emits the green light is preferably disposed at the center. The reason is that good white color can be obtained by disposing, at the center, the light-emitting device that emits light having a wavelength that requires the greatest brightness. 
     The light source device  200  can include a louver. The louver shields incident light such as sunlight applied to the display surface of the light source device  200 . The louver can be disposed for each row, or can be disposed across a plurality of rows. In a case of the light source device  200  including the louver, the light-emitting device having low weather resistance is preferably disposed near the louver. 
     The light-emitting device  100  is mounted on the mounting substrate  60  of the light source device  200 . For example, the entire length of the light-emitting device  100  is in a range from 25.5 mm to 29.5 mm. The entire length is preferably in a range from 26.8 mm to 28.5 mm. An attachment height of the light-emitting device  100  from an upper surface of the mounting substrate  60  is set by bonding an interface between the first linked portion  123  and the first connection end portion  124  and an interface between the second linked portion  113  and the second connection end portion  114  to the upper surface of the mounting substrate  60  when the light-emitting device  100  is mounted on the mounting substrate  60 . For example, a height H 10  of the upper end portions of the lens portions  43  can be aligned. The first linked portion  123  and the second linked portion  113  can be formed wide in the X direction. The first connection end portion  124  and the second connection end portion  114  are portions inserted into the mounting substrate  60  when the light-emitting device  100  is mounted on the mounting substrate  60 . The first connection end portion  124  and the second connection end portion  114  are inserted into the mounting substrate  60  and connected to an external electrode. 
     The waterproof member  70  is provided on the mounting substrate  60  such that a part of the mold resin member  40  is embedded. Further, the waterproof member is disposed such that a part of the mold resin member is embedded between the light-emitting devices adjacent to each other. The waterproof member  70  protects the light-emitting device  100  and the mounting substrate  60  from water and the like. An overlapping thickness H 11  of the waterproof member  70  and the mold resin member  40  is, for example, equal to or more than 0.5 mm, preferably equal to or more than 1.5 mm, and more preferably equal to or more than 3.0 mm. Examples of a material of the waterproof member  70  include an epoxy resin, a modified epoxy resin, a silicone resin, a modified silicone resin, and the like. In particular, it is preferable to employ a silicone resin having good light resistance and heat resistance. Further, the waterproof member  70  is preferably a black resin. By using the black resin, a contrast between the waterproof member  70  and emission light is increased, and display by the light source device  200  becomes clearer. Further, light that is reflected by the interface between the inclined portion  42  and the outside and travels to the mounting substrate  60  side can be absorbed. The inclined surface  420  of the inclined portion  42  is set in a range from an angle at which the light passing through the inclined portion  42  of the light emitted from the light-emitting element  20  is refracted and exits in parallel with the straight line L 1  to an angle at which the light can be totally reflected. The light refracted and exiting in parallel and totally reflected by the inclined surface  420  of the inclined portion  42  travels to the mounting substrate  60  side, and is absorbed by the waterproof member  70 . Thus, a region irradiated from the light source device  200  can be adjusted. For example, by narrowing the light distribution of the light-emitting device and adjusting a region of the display surface of the light source device  200  being irradiated in the lateral direction, brightness in a region desired to be illuminated by the light source device  200  can be maintained, and a light leakage can be suppressed or brightness can be suppressed in a region that does not need to be illuminated or is not desired to be illuminated. 
     The light-emitting device and the light source device according to the embodiment of the present disclosure can be suitably used for a display for outdoor use. In addition, the light-emitting device and the light source device according to the embodiment of the present disclosure can be used for a backlight light source of a liquid crystal display, various types of lighting fixtures, a display for indoor use, various types of display devices for advertisements, destination information, or the like, and the like.