CN113630520B - Camera module - Google Patents
Camera module Download PDFInfo
- Publication number
- CN113630520B CN113630520B CN202010370743.3A CN202010370743A CN113630520B CN 113630520 B CN113630520 B CN 113630520B CN 202010370743 A CN202010370743 A CN 202010370743A CN 113630520 B CN113630520 B CN 113630520B
- Authority
- CN
- China
- Prior art keywords
- lens assembly
- circuit board
- light guide
- camera module
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003287 optical effect Effects 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 abstract description 9
- 238000003384 imaging method Methods 0.000 abstract description 8
- 239000013589 supplement Substances 0.000 abstract description 6
- 239000003292 glue Substances 0.000 description 17
- 230000001681 protective effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
Abstract
The invention provides a camera module, which comprises a circuit board, a photosensitive element, a lens assembly, a light guide piece and a light source assembly, wherein the photosensitive element is arranged on the circuit board and is electrically connected with the circuit board, the lens assembly is arranged on one side, far away from the circuit board, of the photosensitive element, the light guide piece is arranged on the outer side of the lens assembly, the light source assembly comprises a light source, the light source is arranged at the bottom of the light guide piece, and the light source is basically positioned in the middle position of the light guide piece in the direction perpendicular to the optical axis direction of the camera module. According to the camera module, the light guide piece and the light source assembly are arranged to supplement light for the camera module, and the light source of the light source assembly is basically positioned in the middle of the light guide piece, so that the light guide uniformity and the light supplement uniformity of the light guide piece can be improved, and the imaging effect of the camera module is greatly improved.
Description
Technical Field
The invention relates to the technical field of imaging, in particular to a camera module.
Background
With the progress of scientific technology, the application of cameras is more and more widespread, and at present, cameras are arranged on electronic products such as cameras, mobile phones, computers and the like, so that people can take photos anytime and anywhere conveniently, and convenience and fun are brought to the life of people.
Under the condition that cameras are becoming more popular, the functional requirements of people on the cameras are also increasing, and an important point is that better and clearer imaging effects of the cameras are expected.
Disclosure of Invention
The invention aims to provide a camera module with a good imaging effect.
The invention provides a camera module, which comprises a circuit board, a photosensitive element, a lens assembly, a light guide piece and a light source assembly, wherein the photosensitive element is arranged on the circuit board and is electrically connected with the circuit board, the lens assembly is arranged on one side, far away from the circuit board, of the photosensitive element, the light guide piece is arranged on the outer side of the lens assembly, the light source assembly comprises a light source, the light source is arranged at the bottom of the light guide piece, and the light source is basically positioned in the middle position of the light guide piece in the direction perpendicular to the optical axis direction of the camera module.
In one embodiment, the light source assembly includes a plurality of light sources, and the plurality of light sources are circumferentially disposed at the bottom of the light guide member.
In one embodiment, the light guide member includes a lower portion, the lower portion surrounds the periphery of the lens assembly, the light source assembly further includes a circuit board, the plurality of light sources are fixed on the circuit board, the circuit board includes a main body portion located at the periphery of the lens assembly, and the light sources are disposed on the main body portion.
In one embodiment, the circuit board forms a polygonal middle opening, the circuit board forms the main body part at the peripheral part of the middle opening, the main body part is sleeved on the periphery of the lens assembly, and a plurality of light sources positioned on each side of the middle opening are staggered back and forth in the direction perpendicular to the optical axis direction of the lens assembly.
In one embodiment, the main body portion at each side of the central opening is provided with three light sources, the light sources at opposite sides of the central light source are closer to the outer side edges of the main body portion, and the light sources at two sides are symmetrically arranged at two sides of the central light source.
In one embodiment, the bottom of the light guide member facing the light source assembly is provided with a groove, and the light source is accommodated in the groove.
In one embodiment, the plurality of grooves on the light guide member includes a plurality of receiving portions, the receiving portions of each of the grooves are mutually communicated, and each of the receiving portions is located substantially at a middle position of the light guide member in a direction perpendicular to an optical axis direction of the lens assembly.
In one embodiment, the light guide further includes an upper portion, at least a portion of the structure of the upper portion is stacked with the lens assembly along the optical axis direction of the lens assembly, at least a portion of the structure of the upper portion stacked with the lens assembly is annular in cross section, and the upper portion is located at the top of the lower portion.
In one embodiment, the cross sections of the outer periphery and the inner side of the upper portion are circular, the cross section of the outer periphery of the lower portion is circular, the cross section of the inner side of the lower portion is rectangular, and the rectangular inner side of the lower portion is matched with the outer periphery of the lens assembly.
In one embodiment, the circuit board is closely attached to the bottom of the light guide.
In one embodiment, the light source assembly further comprises a mounting plate, the main body of the circuit board is arranged on the mounting plate, an opening is formed in the middle of the mounting plate, and the mounting plate is sleeved on the periphery of the lens assembly.
In one embodiment, the lens assembly includes a first lens assembly, a second lens assembly, a driving device and a base, the base is disposed on the circuit board, the base forms a cavity, the photosensitive element is accommodated in the cavity, the first lens assembly is disposed on the base, the second lens assembly is disposed on the driving device, the driving device is disposed on a side of the base away from the circuit board, and the second lens assembly is disposed on a side of the first lens assembly away from the photosensitive element.
In one embodiment, the first lens component is a fixed focus lens, and the second lens component is a zoom lens.
In one embodiment, the circuit board includes the body portion and the first extension portion extending from the body portion, the circuit board further includes the second extension portion extending from the body portion, the camera module further includes a main board, the circuit board is electrically connected to the main board through a first connector, the circuit board is electrically connected to the main board through a second connector, the first connector includes a first male seat disposed on the first extension portion of the circuit board and a first female seat disposed on the main board, the first male seat is inserted on the first female seat, the second connector includes a second male seat disposed on the second extension portion of the circuit board and a second female seat disposed on the main board, and the second male seat is inserted on the second female seat.
According to the camera module, the light guide piece and the light source assembly are arranged to supplement light for the camera module, and the light source of the light source assembly is basically positioned in the middle of the light guide piece, so that the light guide uniformity and the light supplement uniformity of the light guide piece can be improved, and the imaging effect of the camera module is greatly improved.
Drawings
Fig. 1 is a perspective assembly view of a camera module according to an embodiment of the invention.
Fig. 2 is another perspective view of the camera module shown in fig. 1.
Fig. 3 is an exploded perspective view of the camera module shown in fig. 1.
Fig. 4 is another angular exploded view of the camera module of fig. 1.
Fig. 5 is a cross-sectional view of the camera module shown in fig. 1.
Detailed Description
In order to further describe the technical manner and efficacy of the present invention for achieving the intended purpose, the following detailed description of the embodiments, structures, features and efficacy of the invention refers to the accompanying drawings and examples.
As shown in fig. 1 to 5, the camera module according to an embodiment of the present invention includes a circuit board 11, a photosensitive element 13, an optical filter 17, a lens assembly, a light guide 25, a light source assembly 27, a cover ring 29 and a cover plate 31. The lens assembly comprises a chassis 15, a first lens assembly 19, a second lens assembly 21 and a driving device 23.
In this embodiment, the circuit board 11 may be a flexible circuit board. The wiring board 11 includes a main body portion provided corresponding to the photosensitive element 13 and a first extension portion extending from the main body portion.
In this embodiment, the photosensitive element 13 and the base 15 are both disposed on the circuit board 11, the base 15 forms a cavity 152, and the photosensitive element 13 is accommodated in the cavity 152. Specifically, the photosensitive element 13 may be a photosensitive chip, such as a CCD (Charge Coupled Device ) photosensitive chip or a CMOS (Complementary Metal Oxide Semiconductor ) photosensitive chip. The photosensitive element 13 is electrically connected to the circuit board 11 to transmit an electrical signal to the circuit board 11. The inner wall of the base 15 is formed with a fixing base 154 protruding inward.
In the present embodiment, the optical filter 17 is disposed on the fixing table 154, and the optical filter 17 is disposed between the photosensitive element 13 and the first lens assembly 19 and the second lens assembly 21. In this embodiment, the filter 17 is disposed below the fixing base 154. It will be appreciated that the filter 17 may also be located above the stationary platen 154. The optical filter 1 may be fixed on the fixing stage 154 by glue.
In the present embodiment, the first lens assembly 19 is disposed on the base 15. Specifically, the first lens assembly 19 includes a first lens group and a first lens barrel, the first lens group is assembled in the first lens barrel, an external thread is provided on an outer side of the first lens barrel, an internal thread is provided on an inner wall of the base 15, and the first lens assembly 19 is fixed in the base 15. The first lens assembly 19 is a fixed focus lens.
In the present embodiment, the second lens assembly 21 is disposed in the driving device 23, and the driving device 23 is disposed on the base 15, so that the second lens assembly 21 is located at a side of the first lens assembly 19 away from the photosensitive element 13. Specifically, the driving device 23 is disposed on a side of the base 15 away from the circuit board 11. The second lens assembly 21 is a zoom lens. The second lens assembly 21 includes a second lens group and a second lens barrel, and the second lens group is assembled in the second lens barrel.
In this embodiment, the driving device 23 may be a voice coil motor. Of course, the driving device 23 may be a driving device made of a memory alloy, so long as it can drive the second lens assembly 21 to move up and down for zooming. Specifically, the voice coil motor includes a housing, a magnet, a carrier, and a coil, the magnet is disposed on the housing, the coil is disposed on the carrier, the second lens assembly 21 is fixed on the carrier, and by energizing the coil, magnetic force can be generated to push the carrier to linearly move relative to the housing under the action of the magnet, so as to realize focusing of the second lens assembly 21. Specifically, the housing is fixed to the base 15.
In the present embodiment, the light guide 25 is disposed outside the second lens assembly 21, and the light guide 25 is annular and surrounds the entire outside of the second lens assembly 21. The light guide member 25 guides light to the optical axis of the second lens assembly 21, so as to supplement light to the camera module and improve the imaging effect of the camera module, and the light guide member 25 surrounds the second lens assembly 21 in a ring shape, so that the uniformity of the light supplement is good, and the imaging effect of the camera module is further improved. Specifically, the light guide 25 is fixed on the outer side of the driving device 23 and partially exposed at the top of the driving device 23, and the second lens assembly 21 protrudes above the driving device 23 toward the side away from the photosensitive element 13. The height from the end surface of the light guide member 25 far away from the circuit board 11 to the circuit board 11 is greater than the height from the end surface of the second lens assembly 21 far away from the circuit board 11 to the circuit board 11, so that the height of the whole camera module can be well controlled, and the light guide member 25 can well guide light into the second lens assembly 21.
The light guide 25 includes an upper portion 250 and a lower portion 251, the upper portion 250 is located at the top of the lower portion 251, and at least part of the structure of the upper portion 250 is stacked with the lens assembly along the optical axis direction of the lens assembly, and at least part of the structure of the upper portion stacked with the lens assembly is annular in cross section. The inner side of the upper portion 250 is provided with a convex ring 252, the bottom surface of the convex ring 252 is closely attached to the top surface of the driving device 23, the upper portion 250 is located above the driving device 23, and the lower portion 251 is located outside the driving device 23, so that the light guide member 25 includes a portion surrounding the outer periphery of the second lens assembly 21 protruding above the driving device 23. In this embodiment, the outer periphery and the inner side of the upper portion 250 are both circular in cross section, the outer periphery of the lower portion 251 is circular in cross section, the inner side is rectangular in cross section, and the rectangular inner side of the lower portion 251 is fitted with the rectangular outer periphery of the driving device 23.
The top inner side of the upper portion 251 of the light guide 25 is provided with an inclined side 253, and the side 253 faces the light incident side of the second lens assembly 21, i.e. a horn-shaped inclined light emergent surface is formed at the inner side of the end edge of the light guide 25 at the side far from the circuit board 11. The inclined side 253 can guide the light better toward the optical axis of the second lens assembly 21. In particular, in this embodiment, the side surface 253 is a conical surface.
The periphery of the light guide 25 is also provided with an installation part 254, and the installation part 254 is provided with a glue groove 255. By arranging the glue groove 255, glue can be filled in the glue groove 255 to form a glue part, so that the cover ring 29 is adhered to the light guide member 25, and the problem that the appearance and the light guide effect are affected due to the phenomenon that glue climbs to the outer peripheral surface of the light guide member 25 due to capillary phenomenon during glue coating is solved. Specifically, the mounting portion 254 is provided on the outer periphery of the lower portion 251. In particular, in the present embodiment, the plurality of mounting portions 254 are uniformly disposed along the circumferential direction of the light guide 25. More specifically, the glue grooves 255 are formed on the top of the mounting portion 254, and the glue grooves 255 are arc-shaped, and all the glue grooves 255 on the plurality of mounting portions 254 are located on the same circumference.
The outer side of the light guide 25 is provided with an inclined outer side 256, and the inner side of the cover ring 29 is bonded to the outer side 256 of the light guide 25. Specifically, the mounting portion 254 protrudes beyond the outer side 256.
The bottom of the light guide 25 facing the light source assembly 27 is provided with a groove 258. Specifically, the groove 258 is formed in the lower portion 251 of the light guide 25. The plurality of grooves 258 on the light guide 25, each groove 258 includes a plurality of receiving portions, the receiving portions of each groove 258 are communicated with each other, and each receiving portion is located substantially at a middle position of the light guide 25 in a direction perpendicular to an optical axis direction of the lens assembly (i.e., a thickness direction of the light guide 25), that is, a distance from an inner side of the light guide 25 and a distance from an outer side of the light guide 25 are substantially equal for each receiving portion. More specifically, each groove 258 includes three receptacles, with the middle receptacle being offset back and forth from the other two receptacles.
The bottom of the light guide 25 facing the light source assembly 27 is further provided with a fixing post 259. The four fixing posts 259 are disposed at corresponding positions of the mounting portion 254.
In this embodiment, the light source assembly 27 is disposed at the bottom of the light guide 25. Thus, the light of the light source assembly 27 can better enter the light guide member 25, and a better light supplementing effect is achieved, so that the imaging effect of the camera module is improved. Specifically, the light source assembly 27 includes a plurality of light sources 272, and the plurality of light sources 272 are circumferentially disposed at the bottom of the light guide 25. More specifically, in the thickness direction of the light guide 25 (also referred to as the radial direction of the light guide 25), each light source 272 is located substantially at the middle of the light guide 25, that is, the distance from the inside of the light guide 25 and the distance from the outside of the light guide 25 are substantially equal for each light source 272, so that the light guide uniformity of the light guide 25 can be improved.
The light source assembly 27 further includes a circuit board 274 to which the plurality of light sources 272 are secured. The circuit board 274 includes a rectangular main body portion with an opening in the middle, and the light source 272 is provided on the main body portion. In order to locate each light source 272 substantially at the middle position of the light guide 25, the plurality of light sources 272 on each side of the main body portion are disposed to be staggered back and forth in the thickness direction of the light guide 25. Power is supplied through the circuit board 274 to control the on/off of the light source 272. Specifically, three light sources 272 are disposed on each side of the main body, the light sources 272 on opposite sides of the middle light source 272 are closer to the outer side edge of the main body, and the light sources 272 on opposite sides are symmetrically disposed on opposite sides of the middle light source 272. When the main body is annular, all the light sources 272 may be disposed on the same arc line concentric with the main body. When the body portion is polygonal in other shapes, the plurality of light sources 272 on each side of the body portion are also staggered back and forth.
The light source 272 is accommodated in the groove 258 at the bottom of the light guide member 25, so that the incident area of the light can be increased, and the light guide effect can be enhanced. Specifically, one light source 272 is provided in each housing. Meanwhile, since the light source 272 is accommodated in the groove 258 of the light guide 25, the circuit board 274 can be closely attached to the bottom of the light guide 25, which is beneficial to the adhesion of the light guide 25 and the circuit board 274.
The light source assembly 27 further includes a mounting plate 276, and the main body portion of the circuit board 274 is disposed on the mounting plate 276. The circuit board 274 further includes a second extension portion extending from the main body portion. The mounting plate 276 may be integrally formed with the circuit board 274 or may be formed separately. Specifically, the mounting plate 276 is a rectangular plate, and an opening 277 is provided in the middle of the mounting plate 276, and the mounting plate 276 is sleeved on the outer circumferences of the first lens assembly 19 and the second lens assembly 21.
The side of the mounting plate 276 away from the light guide 25, i.e., the bottom of the mounting plate 276, is provided with a receiving groove 279, and a part of the receiving groove 279 corresponds to and abuts against the outer periphery of the base 15, and the other part corresponds to and abuts against the outer periphery of the driving device 23, and the adhesive is received in the receiving groove 279. When the mounting plate 276 is mounted, the mounting plate is fixed with the base 15 and the driving device 23 after glue is filled in the accommodating groove 279 and solidified. Specifically in this embodiment, the receiving channel 279 extends one revolution along the inside edge of the mounting plate 276, i.e., one revolution along the outside edge of the lens assembly. It will be appreciated that the plurality of receiving grooves 279 may be intermittently formed at the inner edge of the mounting plate 276, i.e., intermittently formed along the outer edge of the lens assembly.
The circuit board 274 and the mounting board 276 are provided with fixing holes 280 corresponding to the fixing columns 259 of the light guide member 25, so as to facilitate the alignment of the light guide member 25 and the light source assembly 27 and fix the light guide member 25 and the light source assembly 27.
In this embodiment, the cover ring 29 is disposed on top of the light guide member 25, and no glue is applied between the outer side 256 of the light guide member 25 and the surface of the cover ring 29. Specifically, the cover ring 29 may be a separate element, or may be a part of a component directly integrated into a casing of an electronic product such as a mobile phone, or may be a part of the casing. The top of the cover ring 29 protrudes from the top of the light guide 25, thereby forming a recess in the top of the light guide 25. In particular, the cover ring 29 may be a metal ring.
The cover ring 29 includes a connection portion 292 and a fitting portion 294, the connection portion 292 is disposed at a bottom edge of the fitting portion 294, the connection portion 292 is a flat plate, the fitting portion 294 is tapered, the connection portion 292 covers over the glue groove 255 of the mounting portion 254 of the light guide 25, and is adhered to the light guide 25, and the fitting portion 294 is fitted to the outer side 256 of the light guide 25. Specifically, the width of the connection portion 292 is greater than the width of the glue groove 255 such that the glue groove 255 is completely covered.
In the present embodiment, the cover plate 31 is disposed on the top of the light guide member 25 (i.e. at the end edge of the light guide member 25 away from the circuit board 11), and is disposed on the side of the second lens assembly 21 away from the photosensitive element 13, so as to protect the first lens assembly 19 and the second lens assembly 21 from being contaminated or damaged. Specifically, the cover plate 31 is closely attached to the top surface of the light guide 25 and is accommodated in the recess formed by the cover ring 29. The end surface of the light guide member 25, which is attached to the cover plate 31, is further formed with a glue groove, so that the cover plate 31 is fixed on the light guide member 25.
In this embodiment, the camera module further includes a first protection film 33, where the first protection film 33 is disposed on top of the cover plate 31 to protect the cover plate 31. The camera module further includes a second protective film 35 and a third protective film (not shown), wherein the second protective film 35 is disposed on top of the first lens assembly 19 to protect the first lens assembly 19, and the third protective film is disposed on top of the second lens assembly 21 to protect the second lens assembly 21.
In this embodiment, the camera module further includes a main board 39, the circuit board 11 is electrically connected to the main board 39 through a first connector, and the circuit board 274 is electrically connected to the main board 39 through a second connector. Specifically, the first connector includes a first male seat 392 disposed on the first extension portion of the circuit board 11 and a first female seat 393 disposed on the main board 39, and the first male seat 392 is plugged onto the first female seat 393. The second connector includes a second male seat 395 provided on a second extension portion of the circuit board 274 and a second female seat 396 provided on the main board 39, the second male seat 395 being inserted into the second female seat 396, and a first steel sheet 398 and a second steel sheet 399 being respectively fixed to the first extension portion and the second extension portion. Because the circuit board 274 is located at a higher height, the second extending portion needs to be bent to extend to the main board 39, and the circuit board 11 is substantially flush with the main board 39. The main board 39 is also provided with electronic devices such as a capacitor. Motherboard 39 may be a printed circuit board.
The present invention is not limited to the preferred embodiments, and the present invention is disclosed in the above description, but is not limited to the preferred embodiments, and any person skilled in the art will appreciate that the present invention is not limited to the embodiments, while the above disclosure is directed to various equivalent embodiments, which are capable of being modified or varied in several ways, any simple modification, equivalent changes and variation of the above embodiments according to the technical principles of the present invention will still fall within the scope of the present invention.
Claims (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010370743.3A CN113630520B (en) | 2020-05-06 | 2020-05-06 | Camera module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010370743.3A CN113630520B (en) | 2020-05-06 | 2020-05-06 | Camera module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113630520A CN113630520A (en) | 2021-11-09 |
| CN113630520B true CN113630520B (en) | 2025-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010370743.3A Active CN113630520B (en) | 2020-05-06 | 2020-05-06 | Camera module |
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| Country | Link |
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| CN (1) | CN113630520B (en) |
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| CN208546807U (en) * | 2018-06-15 | 2019-02-26 | 东莞市美光达光学科技有限公司 | An illumination light distribution structure arranged in an optical image module |
| CN109814199A (en) * | 2019-02-22 | 2019-05-28 | 北京京东方茶谷电子有限公司 | A kind of backlight module, display module and display equipment |
| CN111083342A (en) * | 2020-01-14 | 2020-04-28 | 昆山丘钛微电子科技有限公司 | Camera module and electronic product |
| CN212367342U (en) * | 2020-05-06 | 2021-01-15 | 昆山丘钛微电子科技有限公司 | Camera module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101839445B (en) * | 2009-03-20 | 2013-03-27 | 上海向隆电子科技有限公司 | Section light guide structure of light guide plate in back light module |
| CN101886784A (en) * | 2009-05-15 | 2010-11-17 | 上海向隆电子科技有限公司 | Light guide device of backlight module |
| CN103186759B (en) * | 2013-04-17 | 2015-07-08 | 苏州斯普锐智能系统有限公司 | Barcode scanner with dynamic multi-angle illuminating system |
| CN106941583B (en) * | 2017-02-17 | 2020-01-24 | 苏州佳世达电通有限公司 | Light guide device and network camera using same |
| CN208547955U (en) * | 2018-06-15 | 2019-02-26 | 东莞市长资实业有限公司 | An asymmetric dimming fingerprint recognition module hidden under the screen |
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Patent Citations (4)
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|---|---|---|---|---|
| CN208546807U (en) * | 2018-06-15 | 2019-02-26 | 东莞市美光达光学科技有限公司 | An illumination light distribution structure arranged in an optical image module |
| CN109814199A (en) * | 2019-02-22 | 2019-05-28 | 北京京东方茶谷电子有限公司 | A kind of backlight module, display module and display equipment |
| CN111083342A (en) * | 2020-01-14 | 2020-04-28 | 昆山丘钛微电子科技有限公司 | Camera module and electronic product |
| CN212367342U (en) * | 2020-05-06 | 2021-01-15 | 昆山丘钛微电子科技有限公司 | Camera module |
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| CN113630520A (en) | 2021-11-09 |
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