PATENT DOCUMENT

Publication Number: US-9596397-B2
Application Number: US-201514609404-A
Country: US
Kind Code: B2

Title: Dual shot strobe lens and flex and stiffener features of a camera

Abstract:
An electronic device having a lens and a lens retaining member is disclosed. The lens and the lens retaining member may both be molded in a single mold cavity. However, the lens includes a first material that is clear and translucent, while the lens retaining member includes a second material that is opaque. The lens retaining member may include an alignment such that the lens and lens retaining member, when secured to a flexible circuit, may self-align with a window. The window allows a light source to emit light while the lens retaining member blocks or reflects light. In another embodiment, a container having a first member and a second member may be positioned around a camera module. The container may act as an EMI shield for the camera module.

Claims:
What is claimed is: 
     
       1. An electronic device having an enclosure that carries a light source, the electronic device comprising:
 a window formed from a piece of transparent material, wherein the window extends into an opening in the enclosure; 
 a single-piece lens module carried by the enclosure, the single-piece lens module comprising:
 a lens formed from a first material and positioned proximate to the window; and 
 a lens retaining member surrounding the lens, the lens retaining member formed from a second material different from the first material, wherein at least a portion of the window is interposed between the lens retaining member and the enclosure; and 
 an alignment member secured with the enclosure and surrounding the lens retaining member to align the lens retaining member with respect to the window. 
 
 
     
     
       2. The electronic device of  claim 1 , wherein the light source is at least partially positioned within the lens retaining member. 
     
     
       3. The electronic device of  claim 2 , further comprising:
 a camera module; and 
 a second light source at least partially positioned with the lens retaining member, wherein the light source and the second light source combine to define a flash for the camera module. 
 
     
     
       4. The electronic device of  claim 1 , further comprising a light blocking member positioned around the lens retaining member and the alignment member, the light blocking member secured to the enclosure. 
     
     
       5. The electronic device of  claim 1 , wherein the first material comprises a transparent material, and wherein the second material comprises an opaque material that absorbs or reflects light from the light source. 
     
     
       6. The electronic device of  claim 1 , wherein the alignment member is free of contact with the enclosure. 
     
     
       7. The electronic device of  claim 1 , wherein the lens comprises a Fresnel lens. 
     
     
       8. The electronic device of  claim 1 , wherein:
 the lens retaining member further comprises a first protrusion and a second protrusion; and 
 the alignment member surrounds an outer circumference of the lens retaining member and an outer circumference of the lens, the alignment member comprises a first cavity to receive the first protrusion and a second cavity to receive the second protrusion. 
 
     
     
       9. The electronic device of  claim 1 , wherein the lens retaining member comprises a protrusion, and wherein the alignment member comprises a cavity that receives the protrusion to couple the lens retaining member with the alignment member. 
     
     
       10. The electronic device of  claim 1 , wherein the enclosure comprises a cavity that receives the window. 
     
     
       11. The electronic device of  claim 1 , wherein the lens retaining member reflects light from the light source, and wherein the lens refracts the light from the lights source off the lens retaining member to the window. 
     
     
       12. The electronic device of  claim 1 , wherein the lens comprises an outer diameter, and wherein the lens retaining member comprises an inner diameter in accordance with the outer diameter. 
     
     
       13. The electronic device of  claim 1 , wherein the first material comprises a first mold material, and wherein the second material a second mold material that combines with the first mold material, causing the lens to be seamlessly connected with the lens retaining member. 
     
     
       14. An electronic device comprising:
 a housing having an opening; 
 a light source mounted within the housing, wherein the light source emits light through the opening; 
 a window that is mounted in the housing and that extends into the opening; 
 a single-piece lens module mounted in the housing, the single-piece lens module comprising:
 a lens aligned with the window; and 
 a lens retaining member surrounding the lens; and 
 
 an alignment member secured within the housing and surrounding the lens retaining member to align the lens retaining member with the window, wherein the alignment member is interposed between the lens retaining member and the housing. 
 
     
     
       15. The electronic device defined in  claim 14  wherein the alignment member comprises a chamfered edge portion. 
     
     
       16. The electronic device defined in  claim 14  wherein the lens retaining member comprises a plurality of pins that extend into the alignment member to attach the lens retaining member to the alignment member. 
     
     
       17. The electronic device in  claim 14  further comprising a light blocking member mounted in the housing, wherein the light blocking member surrounds the alignment member and the lens retaining member and absorbs at least some of the light emitted by the light source that does not exit the housing through the window. 
     
     
       18. An electronic device comprising:
 a housing having an opening; 
 a circuit board mounted within the housing; 
 a light source mounted on the circuit board, wherein the light source emits light through the opening; 
 a window formed from transparent material mounted within the housing, wherein the window extends into the opening; 
 a single-piece lens module mounted in the housing, the single-piece lens module comprising:
 a lens aligned with the window; 
 a lens retaining member surrounding the lens, wherein the lens retaining member is mounted to the circuit board, and wherein the window is at least partially interposed between the lens retaining member and the housing; 
 
 a light blocking member that is secured to the housing and surrounds an outer perimeter of the lens retaining member; and 
 an alignment member surrounding the lens retaining member to align the lens retaining member with the window. 
 
     
     
       19. The electronic device defined in  claim 18  wherein the alignment member surrounds the window. 
     
     
       20. The electronic device defined in  claim 18  wherein the lens retaining member is positioned to redirect the light from the light source toward the lens.

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     This is a continuation of International Application PCT/US15/13557, with an international filing date of Jan. 29, 2015, entitled “Camera Features of an Electronic Device Including Dual Shot Strobe Lens and Flex and Stiffener Features,” which claims the benefit of priority under 35 U.S.C §119(e) to U.S. Provisional Application No. 62/046,796, filed on Sep. 5, 2014, the disclosure of which is incorporated herein by reference in its entirety. 
    
    
     FIELD 
     The described embodiments relate generally to electronic devices having cameras. In particular, the present embodiments relate to features for controlling light emission from a light source module in the electronic device, and for shielding a camera module in the electronic device from electromagnetic interference. 
     BACKGROUND 
     Electronic devices often include a camera module used to capture images. In order to enhance the image, a light source module (e.g., LED) positioned within an electronic device may be used as a flash thereby providing additional light. The light source is generally a bright light emitted from the electronic device. However, rather than the bright light completely exiting the electronic device, some light may extend into other areas of the electronic device. This may include, for example, a display panel that displays visual content, or an opening between assembled parts. Either case results in light in unwanted locations of the electronic device. 
     Also, the camera module (or a second camera module in a different location of the electronic device) may be used to capture images from a different vantage point. The camera may be positioned proximate to other internal components which emit electromagnetic radiation, such as an antenna or an electronic sensor. The electromagnetic radiation may interfere with the camera&#39;s performance. Conversely, the camera may emit its own electromagnetic radiation which interferes with the performance of the antenna or the electronic sensor. 
     SUMMARY 
     In one aspect, an electronic device is described. The electronic device may include a window formed from a transparent material. In some cases, the window is adhesively secured to an opening in an enclosure of the electronic device. The electronic device may further include a lens molded from a first material and positioned on the window. The electronic device may further include a lens retaining member molded from a second material different from the first material. In some cases, the lens retaining member includes a protrusion. The electronic device may further include an alignment member proximate to the lens retaining member. In some embodiments, the lens retaining member is aligned with respect to the window via the alignment member. 
     In another aspect, a method for assembling an electronic device is described. The method may include molding a lens from a first material. The method may further include molding a lens retaining member. In some cases, the lens retaining member is molded from a second material different from the first material. The method may further include securing an alignment member to the lens retaining member. In some embodiments, the lens retaining member is aligned with respect to a window via the alignment member. Also, in some embodiments, the alignment member is free of contact with the enclosure. The method may further include securing a light source to the lens retaining member via a circuit electrically connected to the light source. In some embodiments, molding the lens and the lens retaining member may include filling the first material and the second material in a single mold cavity. 
     In another aspect, an electronic device having a camera module is described. The electronic device may include a container that includes a first containment member and a second containment member. In some cases, the first containment member and the second containment member combine to form an electromagnetic interference (EMI) shield for the camera module. The first containment member and the second containment member, therefore, shield the camera module from EMI. The electronic device may further include a first adhesive layer that adhesively secures the first containment member to a circuit that is electrically connected to the camera module. The electronic device may further include a second adhesive layer positioned between the first containment member and the second containment member to adhesively secure the first containment member to the second containment member. In some embodiments, the first adhesive layer and the second adhesive layer are conductive adhesives. 
     Other systems, methods, features and advantages of the embodiments will be, or will become, apparent to one of ordinary skill in the art upon examination of the following figures and detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description and this summary, be within the scope of the embodiments, and be protected by the following claims. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The disclosure will be readily understood by the following detailed description in conjunction with the accompanying drawings, wherein like reference numerals designate like structural elements, and in which: 
         FIG. 1  illustrates an embodiment of electronic device; 
         FIG. 2  illustrates a plan view showing a rear portion of the electronic device shown in  FIG. 1 , showing the device having a second camera module and a lens module configured to capture images through an opening; 
         FIG. 3  illustrates a cross sectional view of the embodiment of the light source module taken along the  3 - 3  line in  FIG. 2 , showing various features used in conjunction with the light source module; 
         FIG. 4  illustrates an exploded view of components associated with an alternate embodiment of a lens module for use in an electronic device, in accordance with the described embodiments; 
         FIG. 5  illustrates an isometric view of the lens retaining module shown in  FIG. 4 , oriented in a different manner to show various features; 
         FIG. 6  illustrates a cross sectional view of an embodiment of a mold cavity designed to form a lens module, in accordance with the described embodiments; 
         FIG. 7  illustrates a cross sectional view of an alternate embodiment of a mold cavity designed to form an alternate lens module, in accordance with the described embodiments; 
         FIG. 8  illustrates an isometric view of an embodiment of a camera module; 
         FIG. 9  illustrates a cross sectional view of a camera module and a flexible circuit shown in  FIG. 8 ; 
         FIG. 10  illustrates an isometric view of a camera module and a flexible circuit positioned within a container; 
         FIG. 11  illustrates a cross sectional view of a camera module and a flexible circuit, with the flexible circuit adhesively secured to a container via an adhesive layer; 
         FIG. 12  illustrates an isometric view of an embodiment of a container having a first containment member and a second containment member; 
         FIG. 13  illustrates an isometric view of a camera module and a flexible circuit positioned within a container, the container defined by the first member adhesively secured to the second member; 
         FIG. 14  illustrates a cross sectional view of a camera module and a flexible circuit adhesively secured to a container, with additional features designed to provide an electrically conductive path for the camera module; and 
         FIG. 15  illustrates a flowchart showing a method for assembling an electronic device. 
     
    
    
     Those skilled in the art will appreciate and understand that, according to common practice, various features of the drawings discussed below are not necessarily drawn to scale, and that dimensions of various features and elements of the drawings may be expanded or reduced to more clearly illustrate the embodiments of the present invention described herein. 
     DETAILED DESCRIPTION 
     Reference will now be made in detail to representative embodiments illustrated in the accompanying drawings. It should be understood that the following descriptions are not intended to limit the embodiments to one preferred embodiment. To the contrary, it is intended to cover alternatives, modifications, and equivalents as can be included within the spirit and scope of the described embodiments as defined by the appended claims. 
     In the following detailed description, references are made to the accompanying drawings, which form a part of the description and in which are shown, by way of illustration, specific embodiments in accordance with the described embodiments. Although these embodiments are described in sufficient detail to enable one skilled in the art to practice the described embodiments, it is understood that these examples are not limiting such that other embodiments may be used, and changes may be made without departing from the spirit and scope of the described embodiments. 
     The following disclosure relates to a light source module in an electronic device. The light source module may be formed by a “dual shot” process in which a single mold cavity is used to mold both a lens and a lens retaining member. The lens may be formed by adding to the single mold cavity a first material that is generally clear and translucent. Then, the lens retaining member portion is formed by adding a second material different from the first material to the single mold cavity. The second material is generally formed from an opaque material. In this manner, some light emitted from a light source module positioned between the lens retaining member extends through the lens and other light is absorbed or reflected by the light retaining member. Also, this ensures a desired relationship and functionality between the lens and the lens retaining member, that is, the lens retaining member closely conforms to the outer dimensions of the lens, and absorbs or reflects light emitted from the light source module with minimal light lost to other locations of the electronic device. 
     Also, in some embodiments, the electronic device may include a camera module positioned proximate to an opening of a ceramic substrate. In a load-bearing event (e.g., dropping the electronic device), the ceramic substrate may be prone to cracking. To relieve stress on the ceramic substrate, the camera may be electrically connected to a flexible circuit via a conductive adhesive. The phrase “conductive adhesive” as used throughout this detailed description and in the claims refers to an adhesive that is capable of conducting electrical current. This assembly allows for relief on the ceramic substrate. Also, in order provide additional stiffness and rigidity, a metal container may be positioned below the camera. The metal container is also configured to shield the camera from electromagnetic radiation emitted from internal components within the electronic device. Also, the metal container may be a unitary structure or may be a two-piece structure. In the latter configuration, the metal container may conform more closely to the camera module. In this manner, the camera module is further shielded from electromagnetic radiation and fewer manufacturing steps and material are required. Also, the other internal components may be shielded by radiation emitted from the camera module during use. 
     These and other embodiments are discussed below with reference to  FIGS. 1-15 . However, those skilled in the art will readily appreciate that the detailed description given herein with respect to these Figures is for explanatory purposes only and should not be construed as limiting. 
       FIG. 1  illustrates an embodiment of electronic device  100 , or simply device  100 . In some embodiments, device  100  is a mobile telecommunications device, such as an iPhone® from Apple, Inc., of Cupertino, Calif. In some embodiments, device  100  is a tablet computing device, such as an iPad® from Apple, Inc., of Cupertino, Calif. Device  100  may include enclosure  102  that receives cover glass  104 . In some embodiments, enclosure  102  is formed from a metal material, such as aluminum or aluminum alloy. Also, display panel  106  may be positioned between cover glass  104  and enclosure  102 . Display panel  106  may be configured to transmit visual display content that may be viewed by a user. 
     Device  100  may further include substrate  108  surrounding display panel  106 . In some embodiments, substrate  108  is made from a ceramic material. Also, device  100  may include a camera module (not shown) configured to capture an image through first opening  110  of substrate  108 . The camera module may be referred to as a “front facing camera.” Also, the camera module may be controlled by a user input through a touch sensor (not shown) electrically coupled to display panel  106 . Device  100  may also include a sensor positioned proximate to second opening  112  of substrate  108 . The sensor may detect objects within a predetermined proximity of device  100  and generate a signal used to place display panel  106  in an “off” or “sleep” mode. 
       FIG. 2  illustrates a plan view showing a rear portion of device  100  showing device  100  having second camera module  120  configured to capture images through opening  122  of enclosure  102 , or alternatively, opening  122  of a ceramic substrate. In order to improve image capturing of second camera module  120 , device  100  may further include lens module  130  configured to allow light through enclosure  102  via opening  122 . In some embodiments, lens module  130  includes a transparent material that allows light to pass and an opaque member configured to block or absorb light. In the enlarged view shown in  FIG. 2 , device  100  includes first light source  132  and second light source  134  that may be used to define a flash event used in conjunction with camera module  120  when camera module  120  captures an image. In some embodiments, first light source  132  and second light source  134  are light-emitting diodes (“LEDs”). First light source  132  and second light source  134  combine to provide light, for example, to enhance the image capture abilities of second camera module  120 . Also, the enlarged view shows first light source  132  and second light source  134  positioned behind window  142 . In other embodiments, a single light source may be used. 
       FIG. 3  illustrates a cross sectional view of device  100  shown in  FIG. 2 , taken along the  3 - 3  line showing various features used in conjunction with lens module  130 . For example, lens module  130  may include lens  144  configured to direct light emitted from first light source  132  and/or second light source  134  through window  142  adhesively secured to enclosure  102 . Lens module  130  may further include lens retaining member  146 . In some embodiments, lens  144  is generally flat. In other embodiments, lens  144  is a concave lens. Still, in other embodiments, lens  144  is a convex lens. In the embodiments shown in  FIG. 3 , lens  144  is a Fresnel lens. Also, in some embodiments, lens  144  is made from glass. In the embodiment shown in  FIG. 3 , lens  144  is formed from plastic, which may include a clear polycarbonate plastic that allows light emitted from first light source  132  and second light source  134  to pass. 
     In some embodiments, lens  144  may be molded prior to assembly, or alternatively, lens  144  may be molded using a mold cavity (not shown). Molding may be performed by techniques such as injection molding or printing lens  144  via a three-dimensional printer. Subsequent to molding lens  144 , lens retaining member  146  may be molded with lens  144 . For example, the mold cavity used to form lens  144  includes additional space to receive a liquid polymeric material to form lens retaining member  146 . In this manner, lens retaining member  146  conforms to the outer dimensions of lens  144 . For example, in cases where lens  144  is generally circular or round having outer diameter  172 , lens retaining member  146  has an inner diameter substantially similar to outer diameter  172 . Lens retaining member  146  may be made from a material or materials having colors such as gray, black, or white, any of which may be selected in order enhance the ability to block light from exiting via lens retaining member  146 . Moreover, the color of lens retaining member  146  may be selected based on the color of the surrounding ceramic substrate in order to enhance the appearance of device  100 . Also, lens retaining member  146  may be formed from any molding technique previously described for molding lens  144 . 
       FIG. 3  further shows first light source  132  and second light source  134  coupled to circuit  154 . In some embodiments, circuit  154  is a printed circuit board (“PCB”). Further, first light source  132 , second light source  134 , and circuit  154  may be secured to flexible circuit  156  that is connected to another internal component, such as a main logic board (not shown). Flexible circuit  156  may be configured to flex or bend by a force or forces acting on flexible circuit  156 . It should be noted that the aforementioned components are electrically connected to each other. For example, an electrical signal may be transmitted from the main logic board to first light source  132  and/or second light source  134  via circuit  154  and flexible circuit  156 . Also, in some embodiments, flexible circuit  156  includes metal trace  158 . Metal trace  158  may be formed from metal such as a copper material. Metal trace  158  is designed to enhance the electrically conductive capabilities of flexible circuit  156 . 
     In some embodiments, lens retaining member  146  is secured to circuit  154 . In this manner, first light source  132  and second light source  134  may be positioned above window  142  in the z-direction (as shown in  FIG. 3 ) by adjusting flexible circuit  156 . To improve alignment of components, and in particular to align lens retaining member  146  with respect to window  142 , alignment member  162  may be used. Alignment member  162  may extend in a circular manner similar to that of lens retaining member  146 . In order to secure alignment member  162  to lens retaining member  146 , lens retaining member  146  may be molded with first protrusion  148  and second protrusion  152 . In other embodiments, first protrusion  148  and second protrusion  152  are secured to lens retaining member  146  subsequent to molding lens retaining member  146 . Also, in some embodiments, a single protrusion extends around the circumference of lens retaining member  146 . As shown in  FIG. 3 , first protrusion  148  and second protrusion  152  are generally cylindrical, pin-like members. In other embodiments, lens retaining member  146  includes at least three protrusions. Alignment member  162  may include first cavity  166  and second cavity  168  configured to receive first protrusion  148  and second protrusion  152 , respectively. It should be understood that the number of cavities corresponds to the number of protrusions. 
     Also, to further improve alignment, alignment member  162  may include chamfered region  174  defined as a region of material removed from alignment member  162 . Chamfered region  174  may extend around alignment member  162 . In this manner, lens module  130  consisting of lens  144  and lens retaining member  146  may be self-aligning or self-centering when positioned over window  142 . This reduces assembly time of an electronic device. 
     Although lens  144  and lens retaining member  146  may be formed as a unitary structure, in some cases, some light may pass between lens  144  and lens retaining member  146  in an undesired manner. As shown in  FIG. 5 , most light rays (dotted lines) emitted from first light source  132  and second light source  134  are reflected from lens retaining member  146  such that the light rays pass through lens  144  and window  142 . However, one light ray passes between lens  144  and lens retaining member  146 . To offset this, device  100  may further include a light blocking member  176  configured to absorb or reflect lights rays. This may prevent the light ray from entering and exiting other locations of device  100 . Light blocking member  176  may be positioned circumferentially around an outer perimeter of lens retaining member  146 . Also, light blocking member  176  may be molded or adhesively secured to enclosure  102 . Also, although not shown, enclosure  102  could be painted on an interior portion of device  100  near window  142 . The paint may include colors generally known to absorb light, such as black or gray. 
       FIG. 4  illustrates an exploded view of components associated with an alternate embodiment of a lens module for use in an electronic device, in accordance with the described embodiments. As shown, lens module  230  may include window  242  positioned within an interior region of housing  202  of an electronic device. In some embodiments, window  242  may include a cylindrical portion having a size and shape corresponding to opening  222  of housing  202 . Lens  244  and lens retaining member  246 , both of which may be formed by a single mold cavity (not shown), may be positioned proximate to window  242 . As shown, lens  244  is a Fresnel lens but may include any properties previously described for a lens. Also, lens retaining member  246  may be formed from any materials previously described for a lens. 
       FIG. 5  illustrates an isometric view of lens retaining member  246  shown in  FIG. 4 , oriented in a different manner to show various features. For example, lens retaining member  246  may include first protrusion  248  and second protrusion  252  integrally formed with lens retaining member  246 . That is, first protrusion  248  and second protrusion  252  are formed simultaneously with lens retaining member  246 . First protrusion  248  and second protrusion  252  may combine to define an alignment feature similar to that of alignment member  162  (shown in  FIG. 3 ). In other words, first protrusion  248  and second protrusion  252  may be referred to as alignment members. Window  242  (shown in  FIG. 4 ) may include regions removed from window  242  that generally correspond to the shape of first protrusion  248  and second protrusion  252 . In this manner, first protrusion  248  and second protrusion  252  may be positioned with window  242  thereby aligning lens module  230  (which includes lens retaining member  246 ) with respect to window  242 . However, as shown in  FIG. 5 , first protrusion  248  and second protrusion  252  do not extend around lens retaining member  246 . Also, first protrusion  248  and second protrusion  252  may each include chamfered regions designed to enhance alignment of a lens module (e.g., lens module  230 ). For example, first protrusion  248  includes chamfered region  254  defined as a region of material removed from first protrusion  248 . 
       FIGS. 6 and 7  illustrate embodiments of mold cavities designed to receive a first material and second material to form the lens module, in accordance with the described embodiments.  FIG. 6  illustrates a cross sectional view of an embodiment of mold cavity  180 . Mold cavity  180  may have first opening  182  and second opening  184 . First opening  182  and/or second opening  184  may be configured to receive clear plastic material in liquid form to form a lens as well as receive an opaque material in liquid form to form a lens retaining member. Accordingly, mold cavity  180  may be used to form lens  144  and lens retaining member  146  shown in  FIG. 3  that defines lens module  130 .  FIG. 7  illustrates a cross sectional view of an alternate embodiment of mold cavity  190 . Mold cavity  190  may have first opening  192  and second opening  194 . First opening  192  and/or second opening  194  may be configured to receive clear plastic material in liquid form to form a lens as well as receive a subsequent opaque material in liquid form to form a lens retaining member. Accordingly, mold cavity  190  may be used to form lens  244  and lens retaining member  246  shown in  FIG. 4  that defines lens module  230 . It should be noted that a curing or cooling process may be involved in order to solidify the lens and the lens retaining member. Also, additional features (not shown) in the mold cavities may be present to separate the materials used to form the lens and the lens retaining member. 
       FIG. 8  illustrates an isometric view of an embodiment of camera module  310 . In some embodiments, camera module  310  is a front facing camera configured to capture images through first opening  110  of substrate  108  (shown in  FIG. 1 ). Camera module  310  may be electrically connected to flexible circuit  314  which may be electrically connected to a main logic board (not shown) within an electronic device. Flexible circuit  314  may include any properties previously described for a flexible circuit (e.g., flexible circuit  156  shown  FIG. 3 ). 
       FIG. 9  illustrates a cross sectional view of camera module  310  and flexible circuit  314  shown in  FIG. 8 . Camera module  310  may include lens fixture  320  having lens  322 . Lens fixture  320  may be in threaded engagement with lens holder  324  adhesively secured to substrate  332 . In some embodiments, lens fixture  320  and lens holder  324  are both made from a plastic material, or other electrically inert material. Also, in some embodiments, substrate  332  is formed from a ceramic material having metal trace  334  embedded within substrate  332 . Metal trace  334  may include a copper material. Metal trace  334  may be configured to form an electrically conductive path between integrated circuit  336  and other components. For example, substrate  332  may be adhesively secured to flexible circuit  314  via adhesive  340 , which may be a conductive adhesive that includes an anisotropic conductive film (“ACF”). In this manner, integrated circuit  336  may be electrically connected to, for example, a logic board (not shown) via flexible circuit  314 , metal trace  334 , and adhesive  340 . 
     In some cases, other internal components (e.g., processor circuit, antenna, electronic sensor) may emit electromagnetic radiation or electromagnetic interference (“EMI”). During use of camera module  310 , EMI may cause improper functionality of camera module  310 . For example, EMI may interfere with integrated circuit  336  causing camera module  310  to distort an image captured by camera module  310 . However, camera module  310  may be shielded from EMI. 
       FIG. 10  illustrates an isometric view of camera module  310  and flexible circuit  314  positioned within container  350 . In some embodiments, container  350  is made from metal, such as steel including SS 304 (stainless steel). As shown, container  350  is a unitary structure. Container  350  may include thickness  352  less than 1 millimeter, and in some cases less than 0.5 millimeters. As shown in  FIG. 10 , container  350  may be a three-sided structure configured to allow flexible circuit  314  to extend beyond container  350 . The “three-sided structure” refers to three vertical portions (in a z-direction) positioned around camera module  310 , with each vertical portion vertical with respect to a base portion of container  350 . Also, container  350  may include a dimension greater than camera module  310  such that camera module  310  may be positioned within container  350  regardless of varying sizes or tolerances of camera module  310 . For example, in  FIG. 10 , container  350  is designed such that clearance  354  exists between camera module  310  and container  350 . 
     In some embodiments, an adhesive or epoxy (not shown) may fill a location of container  350  associated with clearance  354 . Further, the adhesive or epoxy may include metallic materials (e.g., silver) such that a substrate (e.g., substrate  332 ) within camera module  310  is in electrical contact with container  350 . 
       FIG. 11  illustrates a cross sectional view of camera module  310  and flexible circuit  314 , with flexible circuit  314  adhesively secured to container  350  via adhesive layer  356 . In some embodiments, adhesive layer  356  is a conductive adhesive. In this configuration, container  350  may act as an EMI shield for camera module  310 . Further, container  350  may stiffen or increase the overall rigidity of substrate  332 . As a result, substrate  332  is less susceptible to cracking (including micro cracks) during a load-bearing event, such as a drop event of an electronic device having substrate  332 . 
     The container may include alternative designs allowing the electronic device to forego the adhesive or epoxy used to in the location of container  350  associated with clearance  354  (discussed in  FIG. 10 ). For example,  FIG. 12  illustrates an isometric view of an embodiment of container  450  having first containment member  452  and second containment member  454 . As shown, first containment member  452  includes two vertical portions and second containment member  454  includes a single vertical portion. When combined, first containment member  452  and second containment member  454  define a three-sided structure, that is, a structure having three vertical portions (e.g., three portions extending in a z-direction). As shown, at least one region of container  450  does not include a vertical portion. This region allows a flexible circuit (e.g., flexible circuit  314 ) to extend beyond container  450 . Also, second containment member  454  may be secured above or below first containment member  452 . In either case, the two members may be adhesively secured to each other. Also, first containment member  452  and second containment member  454  are designed to be in a sliding engagement with one another. In this manner, the vertical portions of container  450  may be positioned closer to a camera module. Also, container  450  may be made of any material previously described for a container (e.g., container  350  shown in  FIG. 10 ). 
       FIG. 13  illustrates an isometric view of camera module  310  and flexible circuit  314  positioned within container  450 , with container  450  defined by first containment member  452  secured to second containment member  454 . Due in part to the dynamic nature of container  450  (that is, the multiple structures), container  450  may be positioned closer to camera module  310 , and in particular, the vertical portions of container  450  may be positioned closer to camera module  310 . For example, when camera module  310  is positioned within container  450 , a location associated with clearance  464  is less than a location associated with clearance  354  (previously shown in  FIG. 10 ). In this manner, first containment member  452  and second containment member  454  combine to define an EMI shield that does not require an adhesive or epoxy in a location associated with clearance  464 . Accordingly, materials used and manufacturing times may be reduced. Also, first containment member  452  and second containment member  454  may include a thickness (similar to thickness  352  shown in  FIG. 10 ) that is less than 1 millimeter, and in some cases less than 0.5 millimeters. 
       FIG. 14  illustrates a cross sectional view of camera module  310  and flexible circuit  314  adhesively secured to container  450 . In particular, flexible circuit  314  is adhesively secured to first containment member  452  via first adhesive layer  456 . Also, first containment member  452  is adhesively secured to second containment member  454  via second adhesive layer  458 . First adhesive layer  456  and second adhesive layer  458  may be formed from one or more materials such that first adhesive layer  456  and second adhesive layer  458  are conductive adhesives. Further, substrate  332  may be adhesively secured to flexible circuit  314  using conductive adhesive  440 . In this manner, substrate  332  may be electrically connected to container  450 . 
     In some embodiments, container  450  is positioned on, and in some cases, adhesively secured to, conductive member  510  configured to provide an electrically conductive path for camera module  310 . In the latter case, the adhesive is a conductive adhesive. Conductive member  510  may include a first layer  512  made from materials such as boron. In some embodiments, first layer  512  includes an open-cell configuration. Conductive member  510  may further include second layer  514  extending around first layer  512 . Second layer  514  may be formed from an electrically conductive fabric. In some embodiments, second layer  514  is formed from copper. In other embodiments, second layer  514  is formed form silver. Still, in other embodiments, second layer  514  is formed from a combination of silver and copper. Conductive member  510  may be in contact with an electrically conductive member  522  within an electrical device. As shown, electrically conductive member  522  is engaged to a region of second layer  514  opposite a region in which second containment member  454  is engaged, and electrically connected, to second layer  514 . In some embodiments, electrically conductive member  522  is a metal cowling that secures another camera (e.g., second camera module  120 , shown in  FIG. 2 ) positioned within another location of the electronic device. When electrically conductive member  522  is secured to an electrical ground such as an enclosure of an electronic device (e.g., enclosure  102 , shown in  FIG. 1 ), conductive member  510  provides part of an electrical grounding path for camera module  310 . Also, the configuration shown in  FIG. 14  may be used in conjunction with an electronic sensor (not shown) located near camera module  310  and its components. 
       FIG. 15  illustrates a flowchart  600  showing a method for assembling an electronic device. In step  602 , a lens is molded from a first material. The first material may be a clear, plastic polycarbonate material. Also, in some embodiments, the lens is a Fresnel lens configured to direct light from a light source to a window within the electronic device. 
     In step  604 , subsequent to molding the lens, a lens retaining member is molded. The lens retaining member can be molded from a second material different from the first material. Also, the material used to form the second material is generally opaque. Also, a mold cavity used to form the lens can also be used to form the lens retaining member. The mold cavity may be part of a dual shot process in which two molding process formed from two different materials are performed in one process. This may reduce the manufacturing time of the electronic device. 
     In step  606 , an alignment member is secured to the lens retaining member. In order to secure the components, the lens retaining member may include one or more protrusions that engage a corresponding number of cavities within the alignment member. Alternatively, or in conjunction, the alignment member may be adhesively secured to the lens retaining member. The alignment member may also include a chamfered region. During an assembly process, the chamfered region further allows the lens retaining member to self-align with the window. Also, the alignment member may be designed such that the alignment member is not in contact with an enclosure of the electronic device. 
     In step  608 , a light source is secured to the lens retaining member via a circuit electrically connected to the light source. In this manner, the light source emits light toward the lens. The lens retaining member is configured to absorb or reflect the light such that the light does not enter other locations of the electronic device. 
     The various aspects, embodiments, implementations or features of the described embodiments can be used separately or in any combination. Various aspects of the described embodiments can be implemented by software, hardware or a combination of hardware and software. The described embodiments can also be embodied as computer readable code on a computer readable medium for controlling manufacturing operations or as computer readable code on a computer readable medium for controlling a manufacturing line. The computer readable medium is any data storage device that can store data which can thereafter be read by a computer system. Examples of the computer readable medium include read-only memory, random-access memory, CD-ROMs, HDDs, DVDs, magnetic tape, and optical data storage devices. The computer readable medium can also be distributed over network-coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. 
     The foregoing description, for purposes of explanation, used specific nomenclature to provide a thorough understanding of the described embodiments. However, it will be apparent to one skilled in the art that the specific details are not required in order to practice the described embodiments. Thus, the foregoing descriptions of the specific embodiments described herein are presented for purposes of illustration and description. They are not targeted to be exhaustive or to limit the embodiments to the precise forms disclosed. It will be apparent to one of ordinary skill in the art that many modifications and variations are possible in view of the above teachings.

Metadata:
Filing Date: 20150129
Publication Date: 20170314
Grant Date: 20170314
Priority Date: 20140905
Inventors: RAMMAH MARWAN
SHUKLA ASHUTOSH Y.
PAKULA DAVID A.
KOLE JARED M.
NYLAND ERIC N.
Assignee: APPLE INC
CPC Classifications: [{"code": "G02B3/08", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/57", "inventive": true, "first": true, "tree": "[]"}, {"code": "H04N23/56", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B15/05", "inventive": true, "first": true, "tree": "[]"}, {"code": "H04N23/56", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/57", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B2217/002", "inventive": false, "first": false, "tree": "[]"}, {"code": "G03B2217/002", "inventive": false, "first": false, "tree": "[]"}, {"code": "G03B2215/0567", "inventive": false, "first": false, "tree": "[]"}, {"code": "G03B15/05", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B3/08", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B2215/0592", "inventive": false, "first": false, "tree": "[]"}, {"code": "G02B7/022", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B3/0068", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B2215/0592", "inventive": false, "first": false, "tree": "[]"}, {"code": "G03B2215/0567", "inventive": false, "first": false, "tree": "[]"}, {"code": "G03B2215/0571", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F1/1686", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B2215/0571", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F1/1626", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B7/02", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B7/003", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F1/1626", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B2215/0592", "inventive": false, "first": false, "tree": "[]"}, {"code": "G02B7/003", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F1/1626", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B2217/002", "inventive": false, "first": false, "tree": "[]"}, {"code": "G03B2215/0567", "inventive": false, "first": false, "tree": "[]"}, {"code": "G02B7/02", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B2215/0571", "inventive": false, "first": false, "tree": "[]"}, {"code": "G03B15/05", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B3/08", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N5/2256", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N5/2257", "inventive": true, "first": true, "tree": "[]"}]
Family ID: 55438690