Source: http://www.google.com/patents/US20050275748?dq=4740761
Timestamp: 2016-07-30 17:15:45
Document Index: 520690754

Matched Legal Cases: ['art 42', 'art 41', 'art 41', 'art 41', 'art 24', 'art 46', 'art 24', 'art 24', 'art 46', 'art 73', 'art 73', 'art 73', 'arts 24', 'arts 46', 'art 28', 'art 49', 'art 449', 'art 29', 'art 24', 'art 429']

Patent US20050275748 - Socket - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA socket in which a light-emitting diode can be attached and detached as needed close to the structure for holding a camera module. Socket comprises a spring contact part for contacting the leads or electrodes of the light-emitting diode, and an anchor for anchoring such that the direction of a dome...http://www.google.com/patents/US20050275748?utm_source=gb-gplus-sharePatent US20050275748 - SocketAdvanced Patent SearchPublication numberUS20050275748 A1Publication typeApplicationApplication numberUS 11/144,863Publication dateDec 15, 2005Filing dateJun 3, 2005Priority dateJun 14, 2004Also published asCN1716711A, CN100530853C, US7679673Publication number11144863, 144863, US 2005/0275748 A1, US 2005/275748 A1, US 20050275748 A1, US 20050275748A1, US 2005275748 A1, US 2005275748A1, US-A1-20050275748, US-A1-2005275748, US2005/0275748A1, US2005/275748A1, US20050275748 A1, US20050275748A1, US2005275748 A1, US2005275748A1InventorsAkira Takekuma, Yoshifumi YamaokaOriginal AssigneeAgilent Technologies, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (7), Referenced by (2), Classifications (13), Legal Events (8) External Links: USPTO, USPTO Assignment, EspacenetSocket
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [0025] Preferred embodiments of the present invention will now be described in detail while referring to the attached drawings. [0026] FIG. 1 is a drawing showing a schematic cross-section of a socket 10, which is the first preferred embodiment of the present invention. Socket 10 is mounted on a flexible circuit board CB and has two housings, a first housing 40 and a second housing 90. The two housings 40 and 90 are mechanically joined where they intersect as shown by reference numbers 43 and 93. A light-emitting diode 20 emits auxiliary light for autofocusing by a camera module 30, and the relative positional relationship between the two is kept constant by mechanically anchoring housings 40 and 90. [0027] First housing 40 has a structure for holding a shell-shaped light-emitting diode 20. A base part 42 of the first housing has a spring contact 51 that touches the lead extending from light-emitting diode 20. Second housing 90 has a structure for holding camera module 30 and comprises a contact (not illustrated) that will touch an electrode at the base or the side of the camera module. [0028] By means of the first embodiment, housing 40 has a wall part 41 that extends higher than housing 90 that holds camera module 30, and an electromagnetic shield 80 disposed such that current applied to light-emitting diode 20 will not affect the camera module or other peripheral elements. Wall part 41 and electromagnetic shield 80 extend up to near the outside case housing CH of the device that holds the flexible circuit board assembly, including socket 10; therefore, light emitted from light-emitting diode 20 is blocked by the concerted action of both the wall part 41 and the electromagnetic shield 80 or the singular action of one of these, and any irradiation to camera module 30 by this emitted light is prevented. [0029] Furthermore, the part of electromagnetic shield 80 that extends between light-emitting diode 20 and camera module 30 is shown by a broken line near flexible circuit board CB in order to emphasize the linked structure of housings 40 and 90. For instance, it is possible to extend electromagnetic shield 80 up to near the flexible circuit board CB, and even between light-emitting diode 20 and camera module 30, by using the linked structure at the ends of the sides of housings 40 and 90 (the same is true in FIGS. 3 through 5 and FIG. 7 shown hereinbelow). [0030] As explained in relation to the description of the prior art, light-emitting diode 20 held inside housing 40 is designed such that there is strong directivity so that auxiliary light can be transmitted up to relatively long distances. Consequently, it is necessary to anchor the direction of a dome section 23 of light-emitting diode 20, with the light-emitting diode contacting spring contact 51. By means of the present embodiment, an anchor 71 for setting the direction of dome section 23 is shown by reference number 71. [0031] For instance, anchor 71 can be a member that prevents dome section 23 from coming loose and that lays over a flange part 24 of light-emitting diode 20 to serve as a safety lock for the light-emitting diode when the light-emitting diode is held from the top surface and then inserted from the top or the side into the structure for holding the light-emitting diode. This member is not necessarily rigid and can be a member with a certain amount of flexibility that supports dome section 23. A step part 46 made by molding as one unit with housing 40 is disposed at the bottom side of flange part 24 in this case, and flange part 24 is sandwiched in between step part 46 and anchor 71. [0032] Another example is the case where light-emitting diode 20 is inserted from a slanted or horizontal direction and anchor 71 is a locking means that holds, aligns, and anchors dome section 23 of the inserted light-emitting diode. The locking means in this case can be molded as one unit with first housing 40. The light-blocking function can be maintained in this case by applying an electromagnetic shield or by adopting a structure wherein the chamber holding light-emitting diode 20 is closed using additional parts or parts molded as one unit with the housing. [0033] Yet another example of the anchor is shown in FIG. 2. Here, (a) shows the case of a locking arm 72 molded as one unit with housing 40, and (b) shows the case where an additional locking part 73 is used. A flexible member 74 or a similar element can also be situated at the base of dome section 23 to prevent the dome section from coming loose and a safety lock structure is provided by these locking means. When additional locking part 73 is used, a part of locking part 73 can engage with the structure for holding the camera module or part of the camera module such that the positional relationship with the camera module is precisely maintained. [0034] FIG. 3 shows a socket 110, which is a second embodiment of the present invention. The parts that have the same effect as the socket of the first embodiment are represented by adding 100 to the reference number used in the first embodiment and a description relating to the function thereof is omitted. [0035] The difference from the first embodiment is that the second embodiment provides a housing 140 as a single molded article and an electromagnetic shield 180 as a part of the housing, and the structure of the housing for holding a camera module 130 has a wall 145 for blocking light. By means of the first embodiment, the position of a light-emitting diode 120 with respect to the camera module can be more precisely determined and stable properties can be guaranteed, and production and assembly are facilitated. The second embodiment has an advantage in that signals from light-emitting components other than light-emitting diode 120 inside a case housing CH will not reach the camera module. [0036] FIG. 4 shows a socket 210 which is a third embodiment of the present invention. The parts that have the same effect as the socket of the first embodiment are represented by adding 200 to the reference number used in the first embodiment and a description relating to the function thereof is omitted. [0037] The embodiment in FIG. 4 is similar to the second embodiment, but it differs from the second embodiment in that a light-emitting diode 220 is anchored inclined toward a camera module 230. As a result, there is an advantage in that when autofocusing is performed using camera module 230, reflected light of light-emitting diode 220 can be precisely radiated onto a position within and relatively near the center of the projection range wherein camera module 230 can receive light. The angle of inclination is preferably 1 or 2�, but it can be 1 to 5�. [0038] FIG. 5 shows a socket 310 that is the fourth embodiment of the present invention. The parts that have the same effect as the socket of the first embodiment are represented by adding 300 to the reference number used in the first embodiment and a description relating to the function thereof is omitted. [0039] This embodiment is similar to the second embodiment, but it is different in that a housing 340 does not have a relatively high light-blocking wall and only an electromagnetic shielding member 380 extends up near the inside surface of case housing CH. The present embodiment has advantages in that it provides the appropriate light-blocking means for a light-emitting diode 320 and a camera module 330 and it facilitates molding during the production of housing 340, as well as the attachment and assembly of light-emitting diode 320 and camera module 330. [0040] By means of the above-mentioned first through fourth embodiments, light-emitting diodes 20, 120, 220, and 320 are aligned in the direction of height by bringing flange parts 24, 124, 224, and 324 into contact with step parts 46, 146, 246, and 346 formed in housings 40, 140, 240, and 340. However, as shown in FIG. 6, it is also possible to bring a flange part 28 formed in a lead 21 into contact with a shoulder part 49 formed in housings 40, 140, 240, and 340. [0041] FIG. 7 is a drawing showing a socket 410, which is the fifth embodiment. The present embodiment is similar to the fourth embodiment, but it is different in that it has a structure wherein a light-emitting diode 420 that is used here has a surface-mounted electrode and a socket 410 holds this electrode. Light-emitting diode 420 comprises a pedestal 425 formed by wiring for supplying current to the LED chip inside and a dome section 423 that makes up the optical lens on top of the pedestal. [0042] Socket 410 has a female spring contact, but the contact on the bottom shown by 451 a can contact the electrode if the electrode (not illustrated) of light-emitting diode 420 is present only at the base, or the contact on the side shown by 451 b can contact the electrode when the electrode is extended to the side. It should be noted that the contacts represented by 451 a and 451 b need not necessarily be selected and a type that contacts at two points can also be used. [0043] By means of the present embodiment, light-emitting diode 420 is housed facing a predetermined direction inside a concave part 449 formed in housing 440 and is kept from coming loose by the spring property of contacts 451 a and 451 b, or by being held in place by a safety lock in the form of a locking means 447 formed as one unit or attached separately from housing 440. Consequently, dome section 423 of light-emitting diode 420 is anchored facing a pre-determined direction. [0044] By means of the first through the fifth embodiments, the appropriate key means is used in order to hold the light-emitting diode facing a predetermined direction. FIG. 8 shows an example of a key means. Here, (a) is an example of a shell-shaped light-emitting diode, and (b) is an example of a surface mounted light-emitting diode. That is, a notch part 29 is made in a part of flange part 24 of shell-shaped light-emitting diode 20, or a notch part 429 is made in a part of pedestal 425 with surface-mounted light-emitting diode 420, and the shape of the housing structure for holding the respective light-emitting diodes is at least in part complementary to this notched part. As a result, the direction in which the light-emitting diodes are attached when light-emitting diodes 20 and 420 are being held by the flange or the pedestal is assured. [0045] By means of the second through the fifth embodiments wherein the housing is formed as one unit, additional wiring can be disposed inside the housing in order to connect light-emitting diodes 120, 220, 320, and 420 to camera modules 130, 230, 330, and 430. For instance, when light-emitting diodes 120, 220, 320, and 420 are to be operated in accordance with signals detected by camera modules 130, 230, 330, and 430, additional wiring can be disposed inside so as to hold the circuit board on which an IC is mounted. The IC can operate such that the light-emitting diode is switched in accordance with output signals from the camera module. [0046] Additional examples of the socket of the present invention are shown in FIG. 9. By means of this example, the shell-shaped light-emitting diode is used as an auxiliary light for autofocusing and an additional surface-mounted LED chip 520 is used as the indicator. LED chip 520 is at the back surface of the shell-shaped light-emitting diode, and the dome section of the shell-shaped light-emitting diode 20 therefore serves as the lens. The user can confirm the predetermined stance of the equipment by means of the light that is emitted from this LED chip 520 and passes through light-emitting diode 20. That is, the emission wavelength of LED chip 520 should be different from the emission wavelength of the auxiliary light so that the user can confirm that the indictor is working. [0047] LED chip 520 can be mounted on a base 548 of the structure for holding the light-emitting diode inside housing 540, as shown in FIG. 9(a), or it can be premounted on a flexible circuit board, as shown in FIG. 9(b). In the latter case, a light path 541 is disposed inside housing 540, and the positions of light path 541 and the LED chip are aligned with one another during mounting. Light path 541 can also be formed as a space, or it can be filled with a resin or another material that is transparent to the emission wavelength. [0048] Furthermore, the indicator LED chip can be placed in juxtaposition with the light-emitting diode for auxiliary light, as shown in FIG. 9(c). In this case, a light path 542 is disposed away from the structure for holding light-emitting diode 20. Although not illustrated, a lens with a predetermined shape can also be formed in the end on the outside (top end in the figure) of light path 542. [0049] Furthermore, although not illustrated, additional light-receiving elements can be housed in the socket. For instance, RGB color sensors and other light-receiving elements capable of detecting color can be housed as one unit with the socket and anchored in virtually the same direction as the camera module or light-emitting diode. An RGB color sensor can improve autofocusing precision without requiring complex logic circuits by detecting the color data of the object that is the subject of autofocusing and using these data directly. That is, the color data can be combined with signals from the projection elements and used to process the autofocusing signals. In addition, a structure where light-receiving elements are housed in the socket has an advantage in terms of assembly during production. [0050] Preferred embodiments of the socket of the present invention have been described, but these are merely examples and various changes and modifications by persons skilled in the art are possible. Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS6435882 *Jul 27, 2001Aug 20, 2002Agilent Technologies, Inc.Socketable flexible circuit based electronic device module and a socket for the sameUS6730019 *Oct 24, 2001May 4, 2004Karl Storz Gmbh & Co. KgEndoscope with LED illuminationUS7330216 *Feb 24, 2004Feb 12, 2008Research In Motion LimitedHandheld electronic device having a battery compartment door that includes a cameraUS7500614 *Nov 16, 2006Mar 10, 2009Hand Held Products, Inc.Imaging module for optical readerUS20010007739 *Dec 8, 2000Jul 12, 2001Eugen EibofnerLighting fixture for a medical or dental handpieceUS20040150744 *Sep 2, 2002Aug 5, 2004Masakazu KoyanagiImage pickup deviceUS20060109422 *Dec 23, 2003May 25, 2006Newcastle-Upon-Tyne Hospitals Nhs TrustPupilometer* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS7909480 *Aug 18, 2008Mar 22, 2011Samsung Electronics Co., Ltd.Light source module, method of fabricating the same, and display device having the light source moduleUS20090185393 *Jul 23, 2009Kang Eun-JeongLight source module, method of fabricating the same, and display device having the light source module* Cited by examinerClassifications U.S. Classification348/370, 348/E05.029International ClassificationH01R33/06, H01L33/00, G03B17/02, H04N5/222, G02B7/28, G03B13/36, H04N5/232, H01R33/05, H04N5/225Cooperative ClassificationH04N5/2256European ClassificationH04N5/225LLegal EventsDateCodeEventDescriptionJun 3, 2005ASAssignmentOwner name: AGILENT TECHNOLOGIES, INC., CALIFORNIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKEKUMA, AKIRA;YAMAOKA, YOSHIFUMI;REEL/FRAME:016667/0369Effective date: 20050513Owner name: AGILENT TECHNOLOGIES, INC.,CALIFORNIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKEKUMA, AKIRA;YAMAOKA, YOSHIFUMI;REEL/FRAME:016667/0369Effective date: 20050513Feb 22, 2006ASAssignmentOwner name: AVAGO TECHNOLOGIES GENERAL IP PTE. 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