Patent Publication Number: US-9903551-B2

Title: Vehicle lamp structure

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This Application is a continuation application of prior application Ser. No. 14/629,601 filed on Feb. 24, 2015, currently pending. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to a vehicle lamp structure, and in particular, to a vehicle lamp structure having multiple optical axes. 
     BACKGROUND ART 
     Light-emitting modules of conventional vehicle headlamps may be classified into tungsten halogen lamps and High Intensity Discharge (HID) lamps, where the tungsten halogen lamp has an arc length of 5.6 mm and the HID lamp has an arc length of 4.3 mm. In order to match with traditional illumination lamp sources, a Projector Ellipsoid System (PES) is most often used as a light-focusing system, where a lamp cup has the characteristic of a single optical axis and a single light-emitting module. At present, in order to match the arc lengths and sizes of a tungsten halogen lamp and an HID lamp, a light-emitting diode module disposed in the vehicle headlight adopts a continuous light-emitting diode packaging process. Further, because a single elliptical lamp cup only has a single focal point, only a single light-emitting diode can be used. Therefore, light-emitting diodes having a size of 1 mm×1 mm are most often adopted as the base of package at present. The continuous light-emitting diode packaging process means that light-emitting diodes are packaged on a same silicon substrate through a eutectic process or another process, so that the distance between the edges of the light-emitting diodes may be 0.1 mm and may even be as small as 0.05 mm. Because the space between the light-emitting diodes is small, the light-emitting diodes may be regarded as a single light source. However, with the same brightness, the cost of the continuous light-emitting diode package is at least 10 times more than a common light-emitting diode manufactured through a common process. 
     Meanwhile, referring to  FIG. 1 , a common light-emitting diode has a large package size and cannot be packaged and be used as a single light source. The light-emitting diodes L 1 , L 2 , L 3 , and L 4  are mounted on a Metal Core Printed Circuit Board (MCPCB). Generally, a minimum edge distance R 1  of the light-emitting diodes L 1 , L 2 , L 3 , and L 4  is 0.15 mm to 0.2 mm. A minimum weldable spacing R 2  of the light-emitting diodes L 1 , L 2 , L 3 , and L 4  in a tin soldering process is 0.1 mm to 0.2 mm. Therefore, if common illumination light-emitting diodes each having a size of 1 mm×1 mm are discretely arranged and the distance R between adjacent ones in the light-emitting diodes L 1 , L 2 , L 3 , and L 4  is 0.5 mm, multiple light sources are thus formed, thus failing to meet the regulatory requirements. 
     SUMMARY OF INVENTION 
     In view of the above problems, the present disclosure provides a vehicle lamp structure adopting a discontinuous light-emitting module, through the design of a lamp cup, which is adapted for a vehicle lamp structure adapting multiple discontinuous light-emitting diodes, so that the problems in the prior art are avoided, relevant regulations such as ECE R112 in the Regulations of United Nations Economic Commission for Europe (called ECE regulations for short) are met, and the manufacturing cost is reduced. 
     In order to achieve the above objective, an embodiment of the present disclosure provides a vehicle lamp structure including a lamp cup structure and a light-emitting structure. The lamp cup structure has a first light-reflecting surface and a second light-reflecting surface, where the first light-reflecting surface has a first focal point and a second focal point, the second light-reflecting surface has a third focal point and a fourth focal point, and the second focal point and the fourth focal point converge with each other. The light-emitting structure includes a first light-emitting module and a second light-emitting module, where the first light-emitting module includes at least one first light-emitting element for generating a first light source, and the second light-emitting module includes at least one second light-emitting element for generating a second light source. The first light-reflecting surface and the second light-reflecting surface are separated from each other at a predetermined distance, the at least one of the first light-emitting element corresponds to the first focal point, and the at least one of the second light-emitting element corresponds to the third focal point. The first light source generated by the at least one first light-emitting element is projected onto the first light-reflecting surface to form a first reflection light source through the second focal point and the second light source generated by the at least one second light-emitting element is projected onto the second light-reflecting surface to form a second reflection light source through the fourth focal point. 
     Another embodiment of the present disclosure provides a lamp cup structure including a first light-reflecting surface and a second light-reflecting surface. The first light-reflecting surface has a first focal point and a second focal point, where the first focal point and the second focal point are located on a first optical axis. The second light-reflecting surface has a third focal point and a fourth focal point, where the third focal point and the fourth focal point are located on a second optical axis. The first light-reflecting surface and the second light-reflecting surface are separated from each other at a predetermined distance, the second focal point and the fourth focal point converge with each other, and the first optical axis and the second optical axis intersect with each other on a position where the second focal point and the fourth focal point converge with each other. 
     Another embodiment of the present disclosure provides a vehicle lamp structure including a lamp cup structure, a light-emitting structure, and a reflecting mirror. The lamp cup structure has a first light-focusing curved surface and a second light-focusing curved surface connected to the first light-focusing curved surface, where the first light-focusing curved surface has a first focal point and a second focal point, the second light-focusing curved surface has a third focal point and a fourth focal point, and the second focal point and the fourth focal point converge with each other. The light-emitting structure includes a first light-emitting module and a second light-emitting module, where the first light-emitting module includes at least one first light-emitting element for generating a first light source, and the second light-emitting module includes at least one second light-emitting element for generating a second light source. The at least one of the first light-emitting element corresponds to the first focal point, and the at least one of the second light-emitting element corresponds to the third focal point. The reflecting mirror is disposed between the first light-emitting module and the second light-emitting module immediately adjacent to the second light-emitting module. The first light source generated by the at least one first light-emitting element is projected onto the first light-focusing curved surface to form a first reflection light source through the second focal point, one part of the second light source generated by the at least one second light-emitting element is directly projected onto the second light-focusing curved surface to form a second reflection light source through the fourth focal point, and the other part of the second light source generated by the at least one second light-emitting element is successively reflected by the reflecting mirror and the second light-focusing curved surface to form a third reflection light source through the fourth focal point. 
     The beneficial effects of the present disclosure are in that, through the design of the lamp cup, the vehicle lamp structure provided by embodiments of the present disclosure is adapted for a vehicle lamp structure with discontinuous light-emitting modules, so that the problems in the prior art are avoided, relevant regulations such as ECE R112 in the Regulations of United Nations Economic Commission for Europe (called ECE regulations for short) are met, and the manufacturing cost is reduced. 
     In order to further understand the features and technical content of the present disclosure, reference may be made to the following detailed description and accompanying drawings of the present disclosure. However, the accompanying drawings are only provided for reference and illustration, but not are intended to limit the present disclosure. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a schematic layout diagram of a discontinuous light-emitting module in the prior art. 
         FIG. 2A  is a schematic structural diagram of a vehicle lamp structure according to a first embodiment of the present disclosure. 
         FIG. 2B  is a schematic three-dimensional structural diagram of a lamp cup structure according to a first embodiment of the present disclosure. 
         FIG. 2C  is another schematic three-dimensional structural diagram of the lamp cup structure of the present disclosure. 
         FIG. 2D  is a schematic structural diagram of the vehicle lamp structure of the present disclosure. 
         FIG. 2E  is a schematic layout diagram of a light-emitting module of the present disclosure. 
         FIG. 3A  is a schematic structural diagram of the vehicle lamp structure of the present disclosure. 
         FIG. 3B  is a schematic structural diagram of the vehicle lamp structure of the present disclosure. 
         FIG. 4A  is a schematic structural diagram of the vehicle lamp structure of the present disclosure. 
         FIG. 4B  is a schematic structural diagram of the vehicle lamp structure of the present disclosure. 
         FIG. 4C  is a schematic structural diagram of the vehicle lamp structure of the present disclosure. 
         FIG. 4D  is a schematic structural diagram of the vehicle lamp structure of the present disclosure. 
         FIG. 5  is a schematic structural diagram of the vehicle lamp structure of the present disclosure. 
         FIG. 6A  is a schematic structural diagram of a vehicle lamp structure according to a third embodiment of the present disclosure. 
         FIG. 6B  is another schematic structural diagram of the vehicle lamp structure of the third embodiment of the present disclosure. 
     
    
    
     DESCRIPTION OF THE EMBODIMENTS 
     [First Embodiment] 
     Firstly, referring to  FIG. 2A  to  FIG. 2D , a first embodiment of the present disclosure provides a vehicle lamp structure V, including a lamp cup structure  1  and a light-emitting structure  2 . The lamp cup structure  1  has a first light-reflecting surface  11  and a second light-reflecting surface  12 , where the first light-reflecting surface  11  has a first focal point F 1  and a second focal point F 2 , the second reflecting surface  12  has a third focal point F 3  and a fourth focal point F 4 , the second focal point F 2  and the fourth focal point F 4  converge with each other, and the first light-reflecting surface  11  and the second light-reflecting surface  12  may be separated from each other at a predetermined distance. For example, the first light-reflecting surface  11  and the second light-reflecting surface  12  may be of an ellipse shape. Moreover, the lamp cup structure  1  may further have a light-diffusing surface  13  (or light-spreading surface) disposed or connected between the first light-reflecting surface  11  and the second light-reflecting surface  12 , but the present disclosure is not limited thereto. 
     Referring to  FIG. 2B , the first light-reflecting surface  11  may consist of a first horizontal base line  111  and a first vertical base line  112 , and the second light-reflecting surface  12  may consist of a second horizontal base line  121  and a second vertical base line  122 . The first horizontal base line  111 , the first vertical base line  112 , the second horizontal base line  121 , and the second vertical basic line  122  may be elliptical line segments. The first horizontal base line  111  and the first vertical base line  112  may have the common first focal point F 1  or second focal point F 2  and may also have different first focal points F 1  and second focal points F 2 . Similarly, the second horizontal base line  121  and the second vertical base line  122  may have the common third focal point F 3  or fourth focal point F 4  and may also have different third focal points F 3  or fourth focal points F 4 . 
     Referring to  FIG. 2A , the light-emitting structure  2  may be disposed in the lamp cup structure  1 . The light-emitting structure  2  includes a first light-emitting module  21  and a second light-emitting module  22 . The first light-emitting module  21  may include multiple first light-emitting elements  211  for generating a first light source or may have only one first light-emitting element  211 . The second light-emitting module  22  may include multiple second light-emitting elements  221  for generating a second light source or may have only one second light-emitting element  221 . For example, the first light-emitting elements  211  and the second light-emitting elements  221  are light-emitting diodes. The first light-emitting module  21  and the second light-emitting module  22  may each adopt light-emitting diodes with different color temperatures or colored light to adjust a light source emitted by the light-emitting structure  2 . When the multiple first light-emitting elements  211  are adopted, at least one of the multiple first light-emitting elements  211  is arranged at the first focal point F 1 . When the multiple second light-emitting elements  221  are adopted, at least one of the multiple second light-emitting elements  221  is arranged at the third focal point F 3 . For example, at least one of the multiple first light-emitting elements  211  may be disposed adjacent to the first focal point F 1  and at least one of the multiple second light-emitting elements  221  may be disposed adjacent to the third focal point F 3 . Alternatively, at least one of the multiple first light-emitting elements  211  may be directly disposed at the first focal point F 1  and at least one of the multiple second light-emitting elements  221  may be directly disposed at the third focal point F 3 . Further, at least one of the multiple first light-emitting elements  211  may also be directly disposed at the first focal point F 1  and at least one of the multiple second light-emitting elements  221  may also be disposed adjacent to the third focal point F 3 . Therefore, the light distribution pattern and the light brightness are changed by changing the positions of the light-emitting elements and the light-reflecting surface focal points. Moreover, a control module may be used to control the turn-on or turn-off of the first light-emitting module  21  and the second light-emitting module  22  and thus control the light distribution pattern, color temperature or colored light of the light source emitted by the light-emitting structure  2 . It should be noted that, the first light-emitting module  21  and the second light-emitting module  22  used in the present disclosure may each have only one light-emitting element and are not limited to having multiple light-emitting elements. In addition, the first light-emitting module  21  and the second light-emitting module  22  may also be a light-emitting module L consisting of multiple light-emitting diodes formed on a same substrate. 
     Also referring to  FIG. 2C , when the control module turns on the light-emitting structure  2 , the first light source generated by the at least one first light-emitting element  211  in the first light-emitting module  21  is projected onto the first light-reflecting surface  11  to form a first reflection light source passing through the second focal point F 2  and the second light source generated by the at least one second light-emitting element  221  in the second light-emitting module  22  is projected onto the second light-reflecting surface  12  to form a second reflection light source passing through the fourth focal point F 4 . In other words, because the first light-emitting element  211  is correspondingly disposed at the first focal point F 1  and the second light-emitting element  221  is correspondingly disposed at the third focal point F 3 , in combination with the curve characteristic of the light-reflecting surfaces, the first light source generated by the first light-emitting element  211  focuses on the second focal point F 2  of the first light-reflecting surface  11  after being reflected by the first light-reflecting surface  11  and the second light source generated by the second light-emitting element  221  focuses on the fourth focal point F 4  of the second light-reflecting surface  12  after being reflected by the second light-reflecting surface  12 . Moreover, the first reflection light source and the second reflection light source may be projected through a plano-convex lens which has a focal point located at the second focal point F 2  and the fourth focal point F 4 . In this case, the first light-reflecting surface  11  has a focusing function for the first light-emitting module  21  and the first light-reflecting surface  11  has a light-diffusing function for the second light-emitting module  22 . Similarly, the second light-reflecting surface  12  has the focusing function for the second light-emitting module  22  and the second light-reflecting surface  12  has the light-diffusing function for the first light-emitting module  21 . The light-diffusing surface  13  does not have the focusing function for the first light-emitting module  21  and the second light-emitting module  22 , but can diffuse the light generated by the first light-emitting module  21  and the second light-emitting module  22 . 
     As shown in  FIG. 2A  to  FIG. 2C , the lamp cup structure  1  may further include a first optical axis  14  and a second optical axis  15 . The first optical axis  14  passes through the first focal point F 1  and the second focal point F 2  of the first light-reflecting surface  11 . The second optical axis  15  passes through the third focal point F 3  and the fourth focal point F 4  of the second light-reflecting surface  12 . The first optical axis  14  and the second optical axis  15  intersect with each other on the second focal point F 2  and the fourth focal point F 4 . The first optical axis  14  and the second optical axis  15  each are respectively coplanar with the plane formed by their vertical base lines. Moreover, when the lamp cup structure  1  cooperates with a plano-convex lens, a focal point of which is disposed at the second focal point F 2  and the fourth focal point F 4 , so that the light source focusing on the second focal point F 2  and the fourth focal point F 4  is emitted through the plano-convex lens, where an optical axis of the plano-convex lens is located between the first optical axis  14  and the second optical axis  15 . Furthermore, a cut-off line shielding plate may be further disposed adjacent to or directly at the focal point of the plano-convex lens, or disposed adjacent to or directly at the second focal point F 2  and the fourth focal point F 4  of the lamp cup structure  1 . 
     Referring to  FIG. 2D , by changing curved surfaces of the first light-reflecting surface  11  and the second light-reflecting surface  12 , the first focal point F 1  of the first light-reflecting surface  11  falls between the second light-reflecting surface  12  and the third focal point F 3 , and the third focal point F 3  of the second light-reflecting surface  12  falls between the first light-reflecting surface  11  and the first focal point F 1 . In the embodiment of  FIG. 2D , the lamp cup structure  1  may only have the first light-reflecting surface  11  and the second light-reflecting surface  12 , but not have the light-diffusing surface  13 . Moreover, when the lamp cup structure  1  cooperates with a plano-convex lens, a focal point of which is disposed at the second focal point F 2  and the fourth focal point F 4 , so that the light source focusing on the second focal point F 2  and the fourth focal point F 4  is emitted through the plano-convex lens, where an optical axis of the plano-convex lens is located between the first optical axis  14  and the second optical axis  15 . Furthermore, a cut-off line shielding plate may be further disposed adjacent to or directly at the focal point of the plano-convex lens, or disposed adjacent to or directly at the second focal point F 2  and the fourth focal point F 4  of the lamp cup structure  1 . 
     Also referring to  FIG. 2E , a light-emitting module L shown in  FIG. 2E  may be disposed in the lamp cup structure  1  shown in  FIG. 2A , or four separate light-emitting diodes may also be disposed in the lamp cup structure  1 . 
     The light-emitting module L consists of four light-emitting diodes L 1 , L 2 , L 3 , and L 4  each having a size of 1 mm×1 mm. The distance R between adjacent ones of the light-emitting diodes L 1 , L 2 , L 3 , and L 4  is 0.5 mm. The first optical axis  14  passes through the first focal point F 1  and the second focal point F 2  of the first light-reflecting surface  11 . The second optical axis  15  passes through the third focal point F 3  and the fourth focal point F 4  of the second light-reflecting surface  12 . The first optical axis  14  passes through the light-emitting diode L 2  and the second optical axis  15  passes along an edge of the light-emitting diode L 3 . Therefore, for the first light-reflecting surface  11 , the light-emitting diode L 2  generates a focused light pattern; for the second light-reflecting surface  12 , a diffused light pattern is generated because the second optical axis  15  does not pass through the light-emitting diode L 2 . In this embodiment, if the parameters of the first light-reflecting surface  11  and the second light-reflecting surface  12  are set as follows: the distance from a line segment vertex (not a vertex of the light-diffusing surface  13 ) of the first light-reflecting surface  11  to the first focal point F 1  is 10 mm, the distance from a line segment vertex (not the vertex of the light-diffusing surface  13 ) of the second light-reflecting surface  12  to the third focal point F 3  is 10 mm, the distance between the first focal point F  1  and the second focal point F 2  is 50 mm, the distance between the third focal point F 3  and the fourth focal point F 4  is 50 mm, and the length of the lamp cup structure  1  is 35 mm, an emitted light source can have a light pattern complying with the regulations, the illuminance and the lumens can be improved, and the bright area can be concentrated, thereby helping a dipped headlight to project to a farther distance. 
     Referring to  FIG. 3A , the lamp cup structure  1  consists of multiple curved surfaces with different curvatures. For example, the first light-reflecting surface  11  may have multiple light-focusing curved surfaces (or light-condensing curved surface). Each of the light-focusing curved surfaces of the first reflecting surface  11  has a focal point. The multiple first light-emitting elements  211  are disposed at the multiple focal points of the light-focusing curved surfaces, respectively. The second light-reflecting surface  12  may have multiple light-focusing curved surfaces. Each of the light-focusing curved surfaces has a focal point. The multiple second light-emitting elements  221  are disposed on the multiple focal points of the light-focusing curved surfaces, respectively. Therefore, each light-focusing curved surface has a focal point and an optical axis. The optical axes of the light-focusing curved surfaces intersect on a common focal point F 0 . Each light-focusing curved surface has a horizontal base line and a vertical base line. The focal point of the plano-convex lens also converges with the common focal point F 0 . 
     Referring to  FIG. 3B , the relationship between a cut-off line shielding plate  4  and the first light-reflecting surface  11  and the second reflecting surface  12  is revealed in  FIG. 3B . The cut-off line shielding plate  4  is disposed at the second focal point F 2  of the first light-reflecting surface  11  and the fourth focal point F 4  of the second light-reflecting surface  12 . The second focal point F 2  and the fourth focal point F 4  are located at an intersection point of an H-H line and a V-V line. Therefore, the cut-off line shielding plate  4  will shield the second focal point F 2  and the fourth focal point F 4 . The cut-off line shielding plate  4  has a first horizontal portion  41  and a second horizontal portion  42 . The first horizontal portion  41  and the second horizontal portion  42  are connected through an oblique plane portion  43 . The first horizontal portion  41  is located at the right side of the V-V line. A plane (facing the direction of the lamp cup) of the first horizontal portion  41  converges with the H-H line or is spaced from the H-H line at a distance in a direction away from the lamp cup. The second horizontal portion  42  is located at the left side of the V-V line. A plane of the second horizontal portion  42  is located above the H-H line and shields some of the light reflected by the lamp cup structure  1 . The oblique plane portion  43  located between the first horizontal portion  41  and the second horizontal portion  42  is a turning part of the cut-off line, which deflects lights along V-V line with an angle of 165 degrees. 
     Referring to  FIG. 4A  to  FIG. 4D , different numbers of light-emitting diodes L 1 , L 2 , L 3 , L 4 , and L 5  are adopted in the vehicle lamp structure V and are arranged corresponding to the focal points of the first light-reflecting surface  11  and the second light-reflecting surface  12  in different ways. As shown in  FIG. 4A , the light-emitting module L consists of three light-emitting diodes L 1 , L 2 , and L 3  each having a size of 1 mm×1 mm. The first optical axis  14  passes along a left side or right side edge of the light-emitting diode L 1 . The second optical axis  15  passes along a left side or right side edge of the light-emitting diode L 2 . The light-emitting diode L 3  is disposed on a central axis of the lamp cup structure  1 . As shown in  FIG. 4B , the light-emitting module L consists of four light-emitting diodes L 1 , L 2 , L 3 , and L 4  each having a size of 1 mm×1 mm. The first optical axis  14  passes along a left side or right side edge of the light-emitting diode L 2 . The second optical axis  15  passes along a left side or right side edge of the light-emitting diode L 3 . The light-emitting diodes L 1  and L 4  may be used for the light-diffusing function. As shown in  FIG. 4C , the light-emitting module L consists of four light-emitting diodes L 1 , L 2 , L 3 , and L 4  each having a size of 1 mm×1 mm. The first optical axis  14  passes through the light-emitting diode L 2 . The second optical axis  15  passes along a left side or right side edge of the light-emitting diode L 3 . The light-emitting diodes L 1  and L 4  may be used for the light-diffusing function. As shown in  FIG. 4D , the light-emitting module L consists of five light-emitting diodes L 1 , L 2 , L 3 , L 4 , and L 5  each having a size of 1 mm×1 mm. The first optical axis  14  passes along a left side or right side edge of the light-emitting diode L 2 . The second optical axis  15  passes along a left side or right side edge of the light-emitting diode L 3 . The light-emitting diode L 5  is disposed on the central axis of the lamp cup structure  1 . The light-emitting diodes L 1 , L 4  and L 5  may be used for the light spreading function. 
     Referring to  FIG. 5 , the lamp cup structure  1  may have a first light-reflecting surface  11  and a second light-reflecting surface  12 . The first light-reflecting surface  11  may have a first light-focusing curved surface  113  and a second light-focusing curved surface  114 . The second light-reflecting surface  12  may have a third light-focusing curved surface  123  and a fourth light-focusing curved surface  124 . The first light-focusing curved surface  113  has a first optical axis  14 , the second light-focusing curved surface  114  has a second optical axis  15 , the third light-focusing curved surface  123  has a third optical axis  16 , and the fourth light-focusing curved surface  124  has a fourth optical axis  17 . Then, the light-emitting diodes L 1  and L 2  may be correspondingly disposed at a focal point of the first light-focusing curved surface  113  and a focal point of the third light-focusing curved surface  123 . For example, the first optical axis  14  passes through the light-emitting diode L 1 , the second optical axis  15  may pass along a left side or right side edge of the light-emitting diode L 1 , the third optical axis  16  may pass along a left side or right side edge of the light-emitting diode L 2 , and the fourth optical axis  17  may pass along the left side or right side edge of the light-emitting diode L 2 . 
     Because the curvatures of the first light-reflecting surface  11  and the second light-reflecting surface  12  in the lamp cup structure  1  may be designed and the light-emitting structure  2  may be correspondingly disposed at the focal points of the first light-reflecting surface  11  and the second light-reflecting surface  12 , the vehicle lamp structure V provided by the first embodiment of the present disclosure is especially applicable to a vehicle lamp structure V with a discontinuous light-emitting module L, so that relevant regulations such as ECE R112 in the Regulations of United Nations Economic Commission for Europe (called ECE regulations for short) are met, the manufacturing cost is reduced, and the illuminance, the lumens, and the projection distance of the light source are improved. 
     [Second Embodiment] 
     Referring to  FIG. 2A , a second embodiment of the present disclosure provides a lamp cup structure  1 , including a first light-reflecting surface  11  and a second light-reflecting surface  12 . The first light-reflecting surface  11  has a first focal point F 1  and a second focal point F 2 . The first focal point F 1  and the second focal point F 2  are located on a first optical axis  14 . The second light-reflecting surface  12  has a third focal point F 3  and a fourth focal point F 4 . The third focal point F 3  and the fourth focal point F 4  are located on a second optical axis  15 . The first light-reflecting surface  11  and the second light-reflecting surface  12  may be separated from each other at a predetermined distance. The second focal point F 2  and the fourth focal point F 4  converge with each other. The first optical axis  14  and the second optical axis  15  intersect with each other on a position where the second focal point F 2  and the fourth focal point F 4  converge with each other. For example, the first light-reflecting surface  11  and the second light-reflecting surface  12  may be of an elliptical shape. Moreover, the lamp cup structure  1  may further have a light-diffusing surface  13  disposed or connected between the first light-reflecting surface  11  and the second light-reflecting surface  12 . Moreover, the lamp cup structure  1  may further include a first optical axis  14  and a second optical axis  15 . The first optical axis  14  passes through the first focal point F 1  and the second focal point F 2  of the first light-reflecting surface  11 . The second optical axis  15  passes through the third focal point F 3  and the fourth focal point F 4  of the second light-reflecting surface  12 . The first optical axis  14  and the second optical axis  15  intersect with each other at the second focal point F 2  and the fourth focal point F 4 . The first optical axis  14  and the second optical axis  15  each are respectively coplanar with the plane formed by their vertical base lines. However, the present disclosure is not limited thereto. 
     Referring to  FIG. 2B , the first light-reflecting surface  11  may consist of a first horizontal base line  111  and a first vertical base line  112  and the second light-reflecting surface  12  may consist of a second horizontal base line  121  and a second vertical base line  122 . The first horizontal base line  111 , the first vertical base line  112 , the second horizontal base line  121 , and the second vertical base line  122  may be of elliptical line segments. The first horizontal base line  111  and the first vertical base line  112  may have the common first focal point F 1  or second focal point F 2  and may also have different first focal points F 1  and second focal points F 2 . Similarly, the second horizontal basic line  121  and the second vertical basic line  122  may have the common third focal point F 3  or fourth focal point F 4  and may also have different third focal points F 3  or fourth focal points F 4 . 
     Then, referring to  FIG. 2C , light-emitting elements may be disposed in the lamp cup structure  1 . Therefore, the lamp cup structure  1  includes at least one first light-emitting element  211  and at least one second light-emitting element  221 . At least one first light-emitting element  211  is disposed adjacent to or directly at the first focal point F 1 . At least one second light-emitting element  221  is disposed adjacent to or directly at the third focal point F 3 . 
     Referring to  FIG. 4A  to  FIG. 4D , light-emitting diodes L 1 , L 2 , L 3 , L 4 , and L 5  may be disposed in the lamp cup structure  1  disclosed in the second embodiment of the present invention. Different numbers of light-emitting diodes L 1 , L 2 , L 3 , L 4 , and L 5  are adopted in the lamp cup structure  1  and are arranged corresponding to focal points of the first light-reflecting surface  11  and the second light-reflecting surface  12  in different ways. As shown in  FIG. 4A , a light-emitting module L consists of three light-emitting diodes L 1 , L 2 , and L 3  each having a size of 1 mm×1 mm. The first optical axis  14  passes along a left side or right side edge of the light-emitting diode L 1 . The second optical axis  15  passes along a left side or right side edge of the light-emitting diode L 2 . The light-emitting diode L 3  is disposed on a central axis of the lamp cup structure  1 . As shown in  FIG. 4B , the light-emitting module L consists of four light-emitting diodes L 1 , L 2 , L 3 , and L 4  each having a size of 1 mm×1 mm. The first optical axis  14  passes along a left side or right side edge of the light-emitting diode L 2 . The second optical axis  15  passes along a left side or right side edge of the light-emitting diode L 3 . As shown in  FIG. 4C , the light-emitting module L consists of four light-emitting diodes L 1 , L 2 , L 3 , and L 4  each having a size of 1 mm×1 mm. The first optical axis  14  passes through the light-emitting diode L 2 . The second optical axis  15  passes along a left side or right side edge of the light-emitting diode L 3 . As shown in  FIG. 4D , the light-emitting module L consists of five light-emitting diodes L 1 , L 2 , L 3 , L 4 , and L 5  each having a size of 1 mm×1 mm. The first optical axis  14  passes along a left side or right side edge of the light-emitting diode L 2 . The second optical axis  15  passes along a left side or right side edge of the light-emitting diode L 3 . The light-emitting diode L 5  is disposed on the central axis of the lamp cup structure  1 . It should be noted that, the disposing manner for the light-emitting diodes L 1 , L 2 , L 3 , L 4 , and L 5  is not limited to the horizontal arrangement manner shown in  FIG. 4A  to  FIG. 4D . For example, for  FIG. 4C , the light-emitting diodes L 1  and L 2  are disposed at the left side of a symmetry axis, the light-emitting diode L 2  may be disposed on the first optical axis  14  and not directly disposed at the first focal point F 1  but adjacent to the first focal point F 1 , and the light-emitting diode L 1  may be disposed at the left side of the first optical axis  14  and located behind the light-emitting diode L 2 . Therefore, when the light-emitting diodes L 1  and L 2  are disposed adjacent to the first focal point F 1  in this aspect, the light source projected by the light-emitting diodes L 1  and L 2  through a plano-convex lens may be darker than that obtained when the light-emitting diodes L 1  and L 2  are directly disposed at the first focal point F 1 . Moreover, the light-emitting diodes L 3  and L 4  are disposed at the right side of the symmetry axis, the light-emitting diode L 3  is disposed adjacent to the third focal point F 3 , the second optical axis  15  passes along the left side of the light-emitting diode L 3 , and a central point of the light-emitting diode L 3  is disposed on a connection line of the first focal point F 1  and the third focal point F 3 . The light-emitting diode L 4  is similarly disposed adjacent to the third focal point F 3 , and is located behind the light-emitting diode L 3 , where not a center of the light-emitting diode L 4  directly passes through the connection line of the first focal point F 1  and the third focal point F 3 , but a partial edge of the light-emitting diode L 4  passes through the connection line of the first focal point F 1  and the third focal point F 3 . Therefore, the light source projected by the light-emitting diodes L 1 , L 2 , L 3 , and L 4  through the plano-convex lens can comply with the ECE R112 regulation and the projected light source is dark at the left side and bright at the right side. 
     Referring to  FIG. 3A , the lamp cup structure  1  consists of multiple curved surfaces with different curvatures. For example, the first light-reflecting surface  11  may have multiple light-focusing curved surfaces. Each of the light-focusing curved surfaces of the first light-reflecting surface  11  has a focal point. The multiple first light-emitting elements  211  are disposed on the multiple focal points of the light-focusing curved surfaces, respectively. The second light-reflecting surface  12  may have multiple light-focusing curved surfaces. Each of the light-focusing curved surfaces has a focal point. The multiple second light-emitting elements  221  are disposed on the multiple focal points of the light-focusing curved surfaces, respectively. Therefore, each light-focusing curved surface has a focal point and an optical axis. The optical axes of the light-focusing curved surfaces intersect on a common focal point F 0 . Each light-focusing curved surface has a horizontal base line and a vertical base line. A focal point of the plano-convex lens also converges with the common focal point F 0 . 
     Because the curvatures of the light-focusing curved surfaces of the first light-reflecting surface  11  and the second light-reflecting surface  12  in the lamp cup structure  1  may be set in advance and the light-emitting structure  2  may be correspondingly disposed at the focal points of the light-focusing curved surfaces, the lamp cup structure  1  provided by the second embodiment of the present disclosure is especially applicable to a discontinuous light-emitting diode package structure. 
     [Third Embodiment] 
     Referring to  FIG. 6A , a third embodiment of the present disclosure provides a vehicle lamp structure V, including a lamp cup structure  1 , a light-emitting structure  2 , and a reflecting mirror  5 . In the third embodiment, the lamp cup structure  1  is similar to that in the first and second embodiments. The biggest difference between the third embodiment and the first embodiment is that, in the third embodiment, the curvatures of a first light-focusing curved surface  113  and a second light-focusing curved surface  114  on a first light-reflecting surface  11  are changed so that disposing positions of a first light-emitting module  21  and a second light-emitting module  22  correspond to a central axis of the lamp reflector structure  1 . For example, the lamp cup structure  1  has a first light-focusing curved surface  113  and a second light-focusing curved surface  114  connected to the first light-focusing curved surface  113 . The first light-focusing curved surface  113  has a first focal point F 1  and a second focal point F 2 . The second light-focusing curved surface  114  has a third focal point F 3  and a fourth focal point F 4 . The second focal point F 2  and the fourth focal point F 4  converge with each other. The light-emitting structure  2  includes a first light-emitting module  21  and a second light-emitting module  22 . The first light-emitting module  21  may include multiple first light-emitting elements  211  for generating a first light source or may have only one light-emitting element. The second light-emitting module  22  may include multiple second light-emitting elements  211  for generating a second light source or may have only one light-emitting element. At least one of the multiple first light-emitting elements  211  corresponds to the first focal point F 1  and at least one of the multiple second light-emitting elements  221  corresponds to the third focal point F 3 . Moreover, in the third embodiment, a reflecting mirror  5  may be disposed between the first light-emitting module  21  and the second light-emitting module  22  immediately adjacent to the second light-emitting module  22  to reflect a light source of the light-emitting module. Therefore, through the arrangement manner of the first light-focusing curved surface  113 , the second light-focusing curved surface  114 , the first light-emitting module  21 , and the second light-emitting module  22 , the first light source generated by the at least one first light-emitting element  211  is projected onto the first light-focusing curved surface  113  to form a first reflection light source through the second focal point F 2 , one part of the second light source generated by the at least one second light-emitting element  221  is directly projected onto the second light-focusing curved surface  114  to form a second reflection light source through the fourth focal point F 4 , and the other part of the second light source generated by the at least one second light-emitting element  221  is successively reflected by the reflecting mirror  5  and the second light-focusing curved surface  114  to form a third reflection light source through the fourth focal point F 4 . In this embodiment, the reflecting mirror  5  can reflect a light ray originally reflected onto the first light-focusing curved surface  113  onto the second light-focusing curved surface  114 . The light ray reflected by the reflecting mirror  5  is a light ray emitted by a virtual image of the second light-emitting module  22  in the reflecting mirror  5 , so the light ray may also focus at the second focal point F 2  and the fourth focal point F 4 . For example, if the third focal point F 3  of the second light-focusing curved surface  114  is located at a junction between the second light-emitting module  22  and the reflecting mirror  5 , a light ray from the second light-emitting module  22  and a light ray from the virtual image fall at two sides of the fourth focal point F 4 . 
     Moreover, when the lamp cup structure  1  further cooperates with a plano-convex lens  3 , a focal point of the plano-convex lens  3  is disposed on the second focal point F 2  and the fourth focal point F 4 , so that the light source focusing on the second focal point F 2  and the fourth focal point F 4  is projected through the plano-convex lens, where an optical axis of the plano-convex lens  3  is located between the first optical axis  14  and the second optical axis  15 . 
     Referring to  FIG. 6B , the light-emitting structure  2  is disposed in the lamp cup structure  1  in this embodiment. The light-emitting structure  2  includes the first light-emitting module  21  and the second light-emitting module  22 . The first light-emitting module  21  includes multiple first light-emitting elements  211  for generating the first light source. The second light-emitting module  22  includes multiple second light-emitting elements  221  for generating the second light source. Each of the first light-emitting elements  211  and the second light-emitting elements  221  consists of four light-emitting diodes L 1 , L 2 , L 3 , and L 4  each having a size of 1 mm×1 mm. The first light-emitting elements  211  and the second light-emitting elements  221  are discrete light sources. The distance between adjacent the light-emitting diodes among L 1 , L 2 , L 3 , and L 4  is between 0.2 mm and 5 mm. 
     Also referring to  FIG. 2A , the lamp cup structure  1  in the third embodiment may be similar to the lamp cup structure  1  in the first embodiment or the second embodiment. For the third embodiment, the first light-reflecting surface  11  has a first light-focusing curved surface  113  and a second light-focusing curved surface  114 , the second light-reflecting surface  12  has a third light-focusing curved surface  123  and a fourth light-focusing curved surface  124 , the first light-focusing curved surface  113  has a first optical axis  14 , the second light-focusing curved surface  114  has a second optical axis  15 , the third light-focusing curved surface  123  has a third optical axis  16 , and the fourth light-focusing curved surface  124  has a fourth optical axis  17 . The first optical axis  14  passes through the light-emitting diodes L 2  of the first light-emitting module  21  and the second light-emitting module  22 . The third optical axis  16  may pass along left side or right side edges of the light-emitting diodes L 3  of the first light-emitting module  21  and the second light-emitting module  22 . The second optical axis  15  and the fourth optical axis  17  may pass along left side or right side edges of the light-emitting diodes L 2  and L 3 . However, the present disclosure is not limited thereto. In the present disclosure, the curvature of a focusing curved surface may be changed so that an optical axis passes through a light-emitting diode or along a left side or right side edge of the light-emitting diode. Further, in the present disclosure, if it is desired to increase the luminous intensity of the vehicle lamp structure V, more light-emitting modules may be disposed so that the projecting light source has higher illuminance or lumens and the projection distance of the light source can be increased. 
     Moreover, a control module may be used to control the turnon or turnoff of the first light-emitting module  21  and the second light-emitting module  22  and thus control the light distribution pattern, color temperature or colored light of the light source emitted by the light-emitting structure  2 . Therefore, if light-emitting diodes with different colored light are used in combination, a light source with a different color can be obtained. Taking a white light as an example, a warm white light of 3000 K may be mixed with a blue light of about 460 nm, and a white light with another color temperature can be obtained. Alternatively, a warm white light of 3000 K may also be mixed with a cold white light of 6500 K to obtain a colored light of about 4000 K. 
     Because the curvatures of the light-focusing curved surfaces of the first light-reflecting surface  11  and the second light-reflecting surface  12  in the lamp cup structure  1  may be set in advance and the light-emitting structure  2  is correspondingly disposed at the focal points of the light-focusing curved surfaces, the lamp cup structure  1  provided by the third embodiment of the present disclosure is especially applicable to a discontinuous light-emitting diode package structure. 
     [Possible Effects of the Embodiments] 
     In sum, the beneficial effects of the present disclosure are in that, the vehicle lamp structure V provided by the present disclosure can be especially applicable to a discontinuous light-emitting diode package structure, and the light-emitting elements may be correspondingly disposed at the focal points of the light-reflecting surfaces in vehicle lamp structure  1 , so that relevant regulations such as ECE R112 in the Regulations of United Nations Economic Commission for Europe (called ECE regulations for short) are met, the manufacturing cost is reduced, and the illuminance, the lumens, and the projection distance of the light source are increased. 
     The above description is only intended to provide the preferred embodiments of the present disclosure, and is not to limit the patent scope of the present disclosure. All equivalent technical variations made according to the specification and drawings of the present disclosure fall within the protection scope of the present disclosure.