WO2021139481A1 - Ensemble de filtration de lumière, module de caméra et module multi-caméras - Google Patents

Ensemble de filtration de lumière, module de caméra et module multi-caméras Download PDF

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Publication number
WO2021139481A1
WO2021139481A1 PCT/CN2020/135728 CN2020135728W WO2021139481A1 WO 2021139481 A1 WO2021139481 A1 WO 2021139481A1 CN 2020135728 W CN2020135728 W CN 2020135728W WO 2021139481 A1 WO2021139481 A1 WO 2021139481A1
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WO
WIPO (PCT)
Prior art keywords
filter
camera module
cantilever beam
lens
assembly
Prior art date
Application number
PCT/CN2020/135728
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English (en)
Chinese (zh)
Inventor
赵波杰
梅哲文
陈烈烽
Original Assignee
宁波舜宇光电信息有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 宁波舜宇光电信息有限公司 filed Critical 宁波舜宇光电信息有限公司
Priority to CN202080092607.0A priority Critical patent/CN114982216B/zh
Publication of WO2021139481A1 publication Critical patent/WO2021139481A1/fr

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    • 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
    • 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
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

Definitions

  • the present invention relates to the technical field of camera modules. Specifically, the present invention relates to filter components and corresponding camera modules and multi-camera modules.
  • the camera module includes a lens component, a filter component, and a photosensitive component.
  • the lens assembly includes an optical lens and its auxiliary structural parts.
  • the filter assembly includes a filter and its auxiliary structural parts.
  • the photosensitive assembly includes a circuit board, a photosensitive chip attached to the surface of the circuit board, and a photosensitive chip mounted on the surface of the circuit board and surrounding the photosensitive Electronic components around the chip (such as resistors, capacitors, and other electronic components).
  • the filter is sometimes called a color filter.
  • the color filter is usually an IR filter, which can be used to filter out the infrared band in order to improve the image quality.
  • the filter is usually installed at the rear end of the last lens of the lens group of the optical lens (the rear end refers to the end close to the image side) and the front end of the photosensitive chip (the front end refers to the end close to the object side).
  • the rear end refers to the end close to the image side
  • the front end refers to the end close to the object side
  • a filter with a larger area is required.
  • people expect the size of the mobile phone camera module to be reduced as much as possible, especially people expect the height of the mobile phone camera module (that is, the size in the direction of the optical axis) to be as small as possible to avoid excessive thickness of the mobile phone.
  • the purpose of the present invention is to overcome the shortcomings of the prior art and provide a solution that can reduce the risk of chipping or bending of the filter in the camera module.
  • the filter assembly includes: a filter holder, which includes a ring-shaped lens holder and A cantilever beam formed by internal extension, the center of the cantilever beam has a light-through hole; a step is formed at the junction of the mirror seat portion and the cantilever beam, and the step has a connection between the surface of the lens seat portion and the cantilever beam. Step side walls on the surface of the cantilever beam; and a filter, which is adhered to the surface of the cantilever beam by adhesive glue, and the distance between the outer side surface of the filter and the step side wall is at least 0.15 mm.
  • the distance between the outer surface of the filter and the side wall of the step is 0.15 to 0.35 mm.
  • the cantilever beam forms a rectangular ring when viewed from a top view angle
  • the adhesive glue is arranged on the surface of the cantilever beam along four sides of the cantilever beam.
  • the width of the painting glue of the adhesive glue is 0.2-0.25 mm.
  • the filter holder further includes a protrusion formed by the cantilever beam extending inward.
  • the cantilever beam forms a rectangular ring in a plan view
  • the protruding portion has four, which are respectively formed by the four sides of the cantilever beam extending inward.
  • the cantilever beam forms a rectangular ring when viewed from a top view; the number of the protrusions is one, two or three, and each protrusion is formed by one side of the cantilever beam extending inward.
  • the adhesive glue is arranged on the surface of the protrusion and the adjacent cantilever beam region.
  • the distance between the outer surface of the filter and the side wall of the step is 0.15 to 0.45 mm.
  • the filter has a silk-screened area arranged at an edge area of the filter, and the protruding distance of the protrusion is smaller than the width of the silk-screened area.
  • the ratio of the filter length/paint width of the filter is 33-57.
  • the ratio of the filter width to the paint width of the filter is 25-44.
  • the mirror seat portion has a first side, the first side has an avoiding structure for avoiding the pin of the motor, the mirror seat portion also has a second side located on the opposite side of the first side, and The first side crosses the third side and the fourth side.
  • the distance between the outer side surface of the filter and the side wall of the step is a reserved distance, and the reserved distance corresponding to the first side is greater than that corresponding to the second side, the third side or the side wall.
  • the reserved distance of the fourth side is a reserved distance
  • the lens seat portion includes a side wall and a support portion formed by bending at the top of the side wall, the top surface of the support portion is suitable for mounting a motor or a lens carrier, wherein the cantilever beam is supported by the The part extends inwardly, and the thickness of the cantilever beam is smaller than the thickness of the support part.
  • a camera module which includes: any one of the foregoing filter components; a lens component; and a photosensitive component, the filter component being located between the lens component and the photosensitive component between.
  • the top surface of the lens seat portion bears and is mounted on the bottom surface of the lens assembly
  • the bottom surface of the lens seat portion bears and is mounted on the top surface of the photosensitive assembly
  • the photosensitive component includes a circuit board and a photosensitive chip mounted on the surface of the circuit board, the bottom surface of the lens base portion is mounted on the surface of the circuit board, and the lens base portion surrounds the photosensitive chip.
  • the photosensitive component includes a circuit board, a photosensitive chip mounted on the surface of the circuit board, an electronic component mounted on the surface of the circuit board, and a packaging part surrounding the photosensitive chip and covering the electronic component, and the lens holder
  • the bottom surface of the part is mounted on the top surface of the encapsulation part.
  • the lens assembly has a motor
  • the motor includes a motor pin for electrically connecting to a circuit board
  • the lens base portion has a first side
  • the first side has a avoiding structure
  • the motor pin is The bottom surface of the motor passes through the avoiding structure and is connected to the circuit board.
  • the camera module is a wide-angle module or a main camera module.
  • the size of the photosensitive chip of the camera module is larger than 1/2.8 inch.
  • a multi-camera module which includes: an outer bracket having at least one accommodating hole; and the aforementioned camera module, wherein at least one of the camera modules is placed in the The outer surface of the lens assembly of at least one of the camera modules is bonded to the outer bracket through glue.
  • the camera module is a wide-angle module and/or a main camera module.
  • the size of the photosensitive chip of the camera module is larger than 1/2.8 inch.
  • another multi-camera module which includes: an outer bracket having at least one accommodating hole; and the aforementioned camera module, wherein at least one of the camera modules is placed in the Inside the accommodating hole, and at least one of the camera module’s outer side surface of the lens assembly is bonded to the outer bracket by glue, and the outer side surface of the lens seat portion of the camera module is also glued The material is bonded to the outer bracket.
  • This application can reduce the risk of chipping or bending of the filter in the camera module.
  • This application can better adapt to the situation where the area and thickness of the filter is relatively large, and significantly reduce the risk of cracking or bending of the filter.
  • the assembly process of the camera module may need to be processed in a high temperature and low temperature environment, and this temperature change may aggravate the risk of chipping or bending of the filter with a large area-to-thickness ratio, and this application can reduce Risk of cracking or bending of the filter caused by temperature changes during the assembly process of the camera module.
  • This application can reduce the risk of chipping or bending of the filter in the multi-camera module.
  • the interaction between the outer bracket and the lens holder inside each module may generate stress, and this stress may also aggravate the risk of chipping or bending of the filter with a large area-to-thickness ratio.
  • the present application can reduce the risk of chipping or bending of the filter in the multi-camera module.
  • This application can reduce the risk of chipping or bending of the filter in the camera module, and at the same time help the color filter assembly and the camera module to achieve miniaturization.
  • Some embodiments of the present application can better adapt to filter components and camera modules with asymmetric structures, help filter components and camera modules to reduce the risk of filter chipping or bending, and help filter components at the same time And the camera module realizes miniaturization.
  • FIG. 1 shows a schematic cross-sectional view of a typical mobile phone camera module in an embodiment of the present application
  • Fig. 2 shows a schematic cross-sectional view of a filter assembly in an embodiment of the present application
  • Fig. 3 shows a schematic top view of a filter assembly in an embodiment of the present application
  • FIG. 4 shows a schematic top view of the filter holder and its glued area in an embodiment of the present application
  • Fig. 5 shows a schematic cross-sectional view of a camera module with a motor in an embodiment of the present application
  • FIG. 6 shows a schematic top view of a filter holder with an asymmetric structure and its adhesive distribution area in an embodiment of the present application
  • FIG. 7 shows a schematic top view of a filter holder with an asymmetric structure and its adhesive distribution area in another embodiment of the present application
  • FIG. 8 shows a schematic top view of a filter assembly with an asymmetric structure in another embodiment of the present application.
  • Fig. 9 shows a schematic top view of a filter holder with protrusions in an embodiment of the present application.
  • FIG. 10 shows a schematic top view of a filter with a silk-screened area in an embodiment of the present application
  • Fig. 11 shows a schematic top view of a filter holder with protrusions in another embodiment of the present application
  • FIG. 12 shows a schematic top view of a filter holder with a protrusion and its glued area in another embodiment of the present application
  • FIG. 13 shows a schematic cross-sectional view of a camera module according to a modified embodiment of the present application
  • FIG. 14 shows a schematic cross-sectional view of a camera module according to another modified embodiment of the present application.
  • FIG. 15 shows a schematic cross-sectional view of a multi-camera module in an embodiment of the present application.
  • the camera module capable of reducing the risk of filter chipping or bending.
  • FIG. 1 FIG. 1 shows a schematic cross-sectional view of a typical mobile phone camera module in an embodiment of the present application
  • the camera module includes a lens assembly 100, a filter assembly 200 and a photosensitive assembly 300.
  • the lens assembly 100 includes an optical lens and its auxiliary structures (for example, a motor 120 or a lens carrier), the filter assembly 200 includes a filter 220 and its auxiliary structures, and the photosensitive assembly 300 includes a circuit board 310 and is attached to the circuit board 310
  • the photosensitive chip 320 on the surface and the electronic components 330 (such as electronic components such as resistors and capacitors) mounted on the surface of the circuit board 310 and located outside the photosensitive chip 320.
  • the filter 220 is sometimes called a color filter.
  • the filter is usually an IR filter, which can be used to filter out the infrared band in order to improve the image quality.
  • the accessory structure in the filter assembly 200 may be a filter holder 210, which may include a ring-shaped lens holder portion 211 and an inwardly extending (inwardly) lens holder portion 211 from the lens holder portion 211. It can be understood as a cantilever beam 212 formed toward the direction of the optical center of the camera module.
  • the cantilever beam 212 has a light hole in the center, so that light can pass through and be incident on the photosensitive chip 320.
  • the thickness of the cantilever beam 212 is smaller than the thickness of the lens seat portion 211, thereby forming a step with a surface connecting the lens seat portion And the stepped side wall 213 on the surface of the cantilever beam.
  • the filter 220 is adhered to the surface of the cantilever beam 212 (the upper surface in this embodiment) through the adhesive 230, and the distance between the outer side of the filter 220 and the step sidewall 213 is at least 0.15mm. This design solution can reduce the stress transmitted from the cantilever beam 212 to the filter 220, thereby improving the fragility or bending of the filter.
  • the filter is correspondingly “thin” (here “thin” refers to the reduction of the thickness-to-area ratio of the filter), the prevention of this embodiment The effect of the filter chipping or bending is more obvious.
  • FIG. 2 shows a schematic cross-sectional view of the filter assembly in an embodiment of the present application
  • FIG. 3 shows a schematic top view of the filter assembly in an embodiment of the present application.
  • the value range of the distance A between the outer surface of the filter 220 and the step side wall 213 may be 0.15 to 0.35 mm. If the distance A between the outer side of the filter 220 and the step sidewall 213 is too large, the size of the filter holder will be forced to increase, which is not conducive to the miniaturization of the camera module. If the above distance A is too small, during the assembly process or use process of the camera module, due to factors such as temperature, external force, etc., stress will be generated, making the filter 220 susceptible to the stress of the filter holder 210 and cause cracking. Or bend.
  • the filter 220 is substantially rectangular.
  • the cantilever beam 212 is roughly in the shape of a rectangular ring. That is, the outer contour and the inner contour of the cantilever beam 212 are both substantially rectangular.
  • the filter 220 may be adhered to the surface of the cantilever beam 212 through an adhesive 230.
  • the adhesive 230 is used to adhere the IR filter, so it can also be referred to as IR adhesive.
  • FIG. 4 shows a schematic top view of the filter holder and its glued area in an embodiment of the present application.
  • the adhesive 230 is arranged along the four sides of the cantilever beam 212, and the cloth width B of the adhesive 230 arranged on the four sides is in the range of 0.2 to 0.25 mm.
  • the width of the cloth glue is too large, the size of the filter holder may be too large, which is not conducive to the miniaturization of the camera module. If the width of the cloth glue is too narrow, it may affect the stability and reliability of the filter, resulting in The product yield rate of the camera module production process has dropped.
  • the value range of the distance A between the outer surface of the filter 220 and the step sidewall 213 may be 0.15 to 0.35 mm.
  • the solution of this embodiment can not only help the miniaturization of the camera module, but also the filter has good stability and reliability. Moreover, in the solution of this embodiment, the distance A is 0.15 to 0.35 mm, which can effectively reduce the stress transmitted from the cantilever beam 212 to the filter 220, thereby preventing the filter from being broken.
  • the inventor found through research and experiments that the color filter is more susceptible to breakage under the trend that the photosensitive chip of the camera module becomes larger and larger.
  • the reasons can be summarized as follows: First, the increase in the area of the photosensitive chip leads to a larger filter area, while the thickness of the filter remains unchanged or becomes smaller, resulting in the area/thickness ratio of the filter (ie, the area-to-thickness ratio). ) Becomes larger, causing the filter itself to be more easily deformed and more brittle; secondly, the filter chipping is caused by the stress and the micro-cracks on the surface of the filter.
  • This stress is mainly caused by the mounting bracket (that is, the filter The bracket 210, the filter bracket 210 can serve as a lens holder for supporting the lens assembly 100, and at the same time has a cantilever beam 212 for installing the color filter).
  • the stress acts on the filter, it will aggravate the microstructure on the surface of the filter. Crack expansion;
  • the CTE Coefficient of Thermal Expansion
  • the color filter holder 210 is easy to deform and cause stress, especially when the camera module is assembled and used.
  • the filter holder 210 may have a greater inward contraction stress, and this stress is more concentrated at the cantilever beam, resulting in filter
  • the color chip is easy to bend or break; finally, at low temperatures, the IR glue (ie the adhesive 230) will become elastic, low in hardness, and the stress generated by the lens holder 211 and the cantilever beam 212 will be transmitted through the hardened IR glue.
  • the IR glue may fill up or fill the gap between the outer surface of the filter and the side wall of the step to a greater extent, thereby becoming a medium for transferring lateral stress.
  • the inventor designed to leave a certain distance A between the outer side of the filter 220 and the stepped side wall 213 (and the boundary between the cantilever beam 212 and the lens base 211), and the distance A is at least 0.15mm , Preferably 0.15 to 0.35 mm, which can control the module size and increase the reliability of the filter, thereby preventing stress from being transmitted from the lens base portion 211 and the cantilever 212 to the filter, thereby preventing the filter from being broken.
  • the retention distance A since the retention distance A is increased, it can effectively prevent the gap between the outer surface of the filter 220 and the step side wall 213 from being filled up by the overflowing IR glue or being filled to a greater extent by the overflowing IR glue. In this way, the transverse stress is prevented or suppressed from being transmitted to the filter through the hardened IR glue.
  • the distance A may not exceed 0.35 mm to avoid excessively large lateral dimensions of the filter assembly.
  • the lateral direction here refers to the direction perpendicular to the optical axis, where the optical axis refers to the optical axis of the camera module.
  • the central axis direction of the light-passing hole of the filter holder can be regarded as the optical axis direction.
  • the inventor found that the setting of the cloth glue width B also has a certain influence on the stress transmission.
  • the cloth glue width is 0.2 ⁇ 0.25mm, the stress can be effectively controlled to transmit the filter from the filter holder; further, When the cloth glue width B is 0.2-0.25 mm, the reliability of the filter mounted on the filter holder can also be guaranteed.
  • the filter holder 210 for mounting the filter 220 may have an asymmetric structure.
  • FIG. 5 shows a schematic cross-sectional view of a camera module with a motor 120 in an embodiment of the present application.
  • FIG. 6 shows a schematic top view of the filter holder 210 with an asymmetric structure and its glued area in an embodiment of the present application.
  • the lens assembly 100 may have a motor 120, and the motor 120 is electrically connected to the circuit board 310 of the photosensitive assembly 300 through a motor pin 121.
  • the bottom surface of the motor 120 can bear and be attached to the lens base portion 211 of the filter holder 210.
  • the side where the motor pins 121 are arranged in the mirror base portion 211 has a narrower
  • the width (which can be understood as the width in a top view angle), and the shape of the mirror seat portion on this side will also be relatively complicated.
  • the lens holder portion 211 of the filter holder 210 may have three wide sides and one narrow side, and the shape of the narrow side is more complicated, while the narrow width and the complicated shape are both. Both factors will cause the stress on the narrow side to be more likely to concentrate.
  • the value range of the distance A between the outer surface of the filter 220 and the step side wall 213 is set to be 0.15 to 0.35 mm, so as to prevent the color filter from being broken. At the same time, it can also avoid the lateral size of the filter holder from being too large.
  • the complex-shaped side with the avoidance structure 219 is referred to as the first side 215, the opposite side is referred to as the second side 216, and the two sides perpendicular to (or crossing) the first side 215 The sides are called the third side 217 and the fourth side 218, respectively.
  • the camera module may need to be designed to be extremely narrow on one or both sides (that is, one or two sides are extremely narrow), so that the camera module can be installed on When the terminal device is used, it can be closer to the frame or corner (to help increase the screen-to-body ratio and improve the overall screen visual effect), which will cause the filter holder 210 to present an asymmetric structure.
  • the design idea of the filter assembly of this embodiment can also be applied to these situations.
  • FIG. 7 shows a schematic top view of a filter holder 210 with an asymmetric structure and its glued area in another embodiment of the present application.
  • the lens assembly 100 may have a motor 120, and the lens holder portion 211 of the filter holder 210 has a narrower width on the side where the motor pins 121 are arranged ( It can be understood as the width in a top view angle), and the shape of the mirror seat portion 211 on this side will be relatively complicated.
  • the lens holder portion 211 of the filter holder 210 has a narrow width and a complicated shape. Both of these factors will cause the stress on the narrow side to be more likely to concentrate.
  • the value range of the distance between the outer surface of the filter 220 and the step side wall 213 (for ease of description, this distance is sometimes referred to as the reserved distance hereinafter) is set It is 0.15 ⁇ 0.35mm.
  • the retention distance A1 of the complex-shaped side (that is, the side with the motor pin 121) can be greater than the retention distance A2 of the other sides (that is, the side without the motor pin 121).
  • FIG. 8 which shows a schematic top view of a filter assembly with an asymmetric structure in another embodiment of the present application), so that the stress on the side of the complex-shaped side (ie, the first side 215) is better This can effectively prevent the filter from chipping and obtain better overall benefits.
  • the retention distance can be relatively reduced (for example, smaller than the retention distance at the side with complex shapes), so as to Reduce the horizontal size of filter components and camera modules.
  • the filter by controlling the ratio of the length and width of the filter to the width of the paint, the filter can be reduced during the assembly process of the module (referring to the camera module) or during the use of the module.
  • the stress on the filter ensures the reliability of the filter.
  • the value range of the ratio of the length of the filter to the width of the paint is 33-57.
  • the length of the filter is 8.46mm and the width of the paint is 0.25mm, then the ratio of the length of the filter/the width of the paint is 33.84; the length of the filter is
  • the paint width is 0.2mm, the ratio of filter length/paint width is 56.3; the filter length is 11mm, and the paint width is 0.25mm, then the ratio of filter length/paint width is 44.
  • the value range of the ratio of the width of the filter to the width of the paint is 25-44. For example, if the filter width is 6.3mm and the paint width is 0.25mm, the ratio of the filter width/paint width is 25.2; the filter width is 8.76mm and the paint width is 0.2mm, then the filter width/ The ratio of the width of the paint is 43.8; the width of the filter is 8.3mm and the width of the paint is 0.2mm, then the ratio of the width of the filter/the width of the paint is 41.5.
  • the above-mentioned paint width refers to the width of the paint on one side.
  • the paint area supporting the filter in the length direction of the filter is actually along the third side 217 and the fourth side 218 (refer to Figure 6)
  • the two paint areas of the paint ie, the cloth area
  • the width of the paint in the ratio of the filter length/the width of the paint refers to the width of the paint in a single paint area, not the two paint areas The sum of the widths.
  • the paint area supporting the filter in the width direction of the filter is actually two paint areas along the first side 215 and the second side 216 (refer to FIG. 6).
  • the width of the paint in the ratio of filter width/paint width refers to the width of the paint in a single paint area, not the sum of the widths of two paint areas. Further, preferably, the distance between the filter and the step side wall 213 in this embodiment may be 0.15 to 0.35 mm, for example, 0.3 mm, and the width of the paint may be 0.2 to 0.25 mm.
  • FIG. 9 shows a schematic top view of the filter holder 210 with the protrusion 214 in an embodiment of the present application. 1 and 9 in combination, in this embodiment, the filter holder 210 may include an annular lens seat portion 211 and inwardly extending from the lens seat portion 211 (inwardly can be understood as facing the camera module
  • the cantilever beam 212 is formed by the direction of the optical center).
  • the cantilever beam 212 has a light hole in the center, so that light can pass through and be incident on the photosensitive chip 320.
  • the thickness of the cantilever beam 212 is smaller than the thickness of the lens seat portion 211, thereby forming a step with a surface connecting the lens seat portion And the stepped side wall 213 on the surface of the cantilever beam.
  • the filter holder 210 further includes a protrusion 214, and the cantilever beam 212 extends inward (that is, in the direction toward the optical center of the camera module), and is formed to protrude from the top view angle.
  • the protrusion 214 of the cantilever beam (refer to FIG. 9).
  • the thickness of the protrusion 214 can be the same as the thickness of the cantilever beam 212 (or the thickness of the junction of the protrusion 214 and the cantilever beam 212 is the same, and there is no step similar to the junction of the mirror seat portion 211 and the cantilever beam 212. ).
  • the filter holder 210 in this embodiment has four protrusions 214 extending inward from the four sides of the cantilever beam, so that the four corners of the substantially rectangular light-passing hole form four hollow areas. 214a.
  • the design of the hollow area 214a can reduce corner stress on the one hand, and can also be used for positioning based on machine vision technology in the assembly process of the camera module on the other hand. In FIG.
  • the dashed frame 220a shows the position of the periphery of the filter 220.
  • the upper surface of the filter holder 210 has more areas suitable for cloth glue (the upper surface of the protrusion 214 can also be used as a cloth glue area or a part of the cloth glue area. ), thereby allowing more space on the surface of the cantilever beam as the reserved distance, which is the distance between the outer side of the filter 220 and the step side wall 213. More retention distance will ensure that the fragile problem of the filter 220 is better solved.
  • FIG. 10 shows a schematic top view of a filter 220 with a silk-screen area 220a in an embodiment of the present application.
  • the filter 210 shown in FIG. 10 can be combined with the filter holder 210 shown in FIG. 9 to form a filter assembly.
  • the existing filter usually has a silk-screen area 220a.
  • the silk-screen area 220a is usually formed on the edge area of the filter element near the four sides by a silk-screen process (note that the silk-screen area 220a can be made on the upper surface of the filter, or it can be made on the upper surface of the filter).
  • the lower surface of the filter Generally speaking, the silk-screen area 220a is opaque, that is, the silk-screen area 220a is not an effective optical area.
  • the protruding distance C of the four protrusions 214 of the filter holder 210 is preferably less than or equal to the width of the silk screen area, and the filter 220 is installed on the filter holder 210. At least a part of the edge area of the filter 220 can be supported by the protrusion 214.
  • the adhesive can be arranged on the protrusion 214 and the adjacent cantilever beam area.
  • the glue width is 0.2 ⁇ 0.25mm in order to ensure the stability and reliability of the adhesion of the filter.
  • the design of this embodiment can help the outer side of the filter 220 to be away from the stepped side wall 213, thereby More reserved distance is reserved (the reserved distance is the distance between the outer side of the filter 220 and the side wall 213 of the step). In this way, the stress transmitted from the filter holder to the filter can be further reduced.
  • the distance between the outer side of the filter 220 and the stepped side wall 213 can be in the range of 0.15 to 0.45 mm. Value (for example, 0.3mm or 0.4mm).
  • the silk-screen area is usually arranged along the four sides of the filter, and the width of the silk-screen area at the four corners of the filter is reduced.
  • One of the purposes of this design is to facilitate the implementation of the screen printing process, and further can control the four corners of the screen printing material to produce chips during the cutting process.
  • FIG. 11 shows a schematic top view of the filter holder 210 with the protrusion 214 in another embodiment of the present application.
  • the filter holder 210 has only one protrusion 214, and the protrusion 214 may be located on the side of the side with complex shape (ie, the first side 215 ).
  • the first side 215 may have an avoiding structure 219 for avoiding the motor pin 121. Therefore, among the four sides, the cantilever 212 on the side of the first side 215 is narrower.
  • the cantilever beam on the side of the first side 215 extends inward to form a protrusion 214, which can increase the area suitable for glue distribution on the side of the first side 215, thereby helping the outside of the filter to stay away from the side wall of the step. 213, so as to reduce the stress transmitted from the filter holder 210 to the filter 220, and prevent the filter 220 from being broken or bent.
  • FIG. 12 shows a schematic top view of the filter holder 210 with the protrusion 214 and its glued area in another embodiment of the present application. Referring to FIG.
  • the adhesive 230 is arranged on the protrusion 214 and the adjacent cantilever beam area, so that the width of the paint can reach 0.2-0.25 mm.
  • the cantilever beam can have enough reserved area so that the outer side surface of the filter 220 can be better separated from the stepped side wall 213 (refer to FIG. 5).
  • the protrusions may not be provided, and the adhesive 230 may be arranged on each of the three sides corresponding to each other.
  • the reserved distance A1 corresponding to the first side 215 may be greater than the reserved distance A2 corresponding to the second side 216 (or the third side 217 or the fourth side 218).
  • the adhesive glue i.e., IR glue
  • FIG. 12 shows the filter holder with protrusions
  • the design solution of not arranging the adhesive glue at the corners of the cantilever beam can also be applied to the filter holder without protrusions.
  • the adhesive glue on the basis of setting the reserved distance as described above, it is possible to avoid placing the adhesive glue at the corners of the cantilever beam. Since the stress transmission at the corners of the cantilever beam can be reduced, these embodiments can better prevent the filter from chipping or bending.
  • the filter is bonded to the upper surface of the cantilever beam of the filter holder through its bottom surface, that is to say, the glue area of the cantilever beam is all located on the upper surface of the cantilever beam.
  • the filter may be bonded to the lower surface of the cantilever of the filter holder through its top surface.
  • the filter holder has a part that supports and mounts the lens assembly and/or the photosensitive assembly, and this part can be regarded as the lens seat part, and the filter holder also has a self-contained lens A cantilever beam formed by extending the seat inward, and the cantilever beam can be used to install a filter.
  • the structure of the camera module needs to be as small as possible on the premise of ensuring the structural strength.
  • the filter holder in this article may have a certain supporting effect on the filter, the lens assembly and the photosensitive assembly.
  • the lens assembly and the photosensitive assembly have greater weight and volume, so the lens base part often needs to have a greater thickness to ensure its structural strength.
  • the thickness of the mirror seat portion is often greater than the thickness of the cantilever beam, so that a step as shown in FIG. 1 or FIG. 2 is formed at the junction of the lens seat portion and the cantilever beam.
  • the thickness of the cantilever beam 212 is smaller than the thickness of the lens holder portion 211, which can ensure the structural strength of the lens holder portion 211, so as to stably and reliably provide support for the lens assembly, and
  • the space occupied by the cantilever beam can be reduced in the direction of the optical axis, which helps reduce the height of the camera module (where the height refers to the size of the camera module in the direction of its optical axis).
  • the mirror seat portion 211 includes a side wall 211a and a supporting portion 211b formed by bending at the top of the side wall 211a, and the top of the supporting portion 211b
  • the surface is suitable for mounting a motor or a lens carrier, wherein the cantilever beam 212 is formed by extending the support portion 211b inwardly.
  • the thickness of the cantilever beam 212 is smaller than the thickness of the support portion 211b.
  • FIG. 13 shows a schematic cross-sectional view of a camera module according to a modified embodiment of the present application.
  • the photosensitive component 300 includes a circuit board 310, a photosensitive chip 320 mounted on the surface of the circuit board 310 (which can be mounted by attaching), and an electronic component 330 mounted on the surface of the circuit board 310 (The electronic element may be a resistive element, a capacitive element, etc.), and the electronic element 330 is arranged around the photosensitive chip 320.
  • the photosensitive assembly 300 further includes a molding part 340 surrounding the photosensitive chip 320, and a light window is formed in the center of the molding part 340 so that the photosensitive chip 320 receives the imaging light beam.
  • the molding part 340 may be directly molded on the surface of the circuit board 310 based on a molding process.
  • an upper mold and a lower mold can be used to press the circuit board 310, wherein the back of the circuit board 310 is supported by the lower mold, and the upper mold is pressed on the edge area of the front surface of the circuit board 310 (the edge area may be called The pressing edge), and the inner surface of the upper mold and the front surface (that is, the upper surface) of the circuit board together form a molding cavity.
  • the liquid molding material is injected into the molding cavity and solidified to form the desired molding portion 340.
  • the molding part 340 may not contact the photosensitive chip 320, or may contact the side surface of the photosensitive chip 320 (or contact the edge area of the side surface and the upper surface of the photosensitive chip 320, which is usually a non-sensitive area).
  • the filter holder 210 is installed on the top surface of the molded part 340.
  • the shape and structure of the filter holder 210 may be the same as those in the previous embodiment, that is, the filter holder 210 may include the lens seat portion 211 and the cantilever beam 212.
  • the top surface of the lens seat portion 211 is suitable for supporting and installing the lens assembly 100.
  • the lens assembly 100 may have a motor 120 or not (for example, when the camera module is a fixed focus module, the lens assembly may not have a motor).
  • a filter 220 is attached to the surface of the cantilever beam 212. 2 and 13 in combination, in this embodiment, the value range of the distance A between the outer surface of the filter 220 and the step sidewall 213 may be 0.15 to 0.35 mm.
  • the solution of this embodiment can not only help the miniaturization of the camera module, but also the filter has good stability and reliability.
  • the distance A is 0.15 to 0.35 mm, which can effectively reduce the stress transmitted from the cantilever beam 212 to the filter 220, thereby preventing the filter from being broken.
  • the aforementioned molding part can also be replaced by other types of packaging parts.
  • the packaging part can be directly molded on the basis of other processes such as transfer molding or injection molding.
  • the packaging portion covers the electronic component 330, and the filter holder 210 can be mounted (for example, attached) to the top surface of the packaging portion.
  • FIG. 14 shows a schematic cross-sectional view of a camera module according to another modified embodiment of the present application.
  • the lens assembly 100 is directly mounted on the top surface of the molding part 340 (or the encapsulation part).
  • the filter holder 210 is also installed on the top surface of the molding part 340 (or the encapsulation part), and the filter holder 210 is located inside the lens assembly bearing area.
  • the lens component bearing area refers to the area on the top surface of the molding part 340 (or the encapsulating part) for supporting the lens component.
  • the filter holder 210 may have a lens base portion 211 and a cantilever beam 212. It should be noted that in this embodiment, the lens holder 211 is only used to support the cantilever beam 212, and is not used as a lens holder of the lens assembly.
  • the design idea of the present application can also be applied to multi-camera modules, so as to solve the problem that the filters in the multi-camera modules are easily broken or bent.
  • the multi-camera modules in this embodiment are at least A camera module is implemented as a main camera module or/and a wide-angle module.
  • the size of the main camera module or the photosensitive chip corresponding to the wide-angle module is larger, that is, the area of the photosensitive chip becomes larger and larger, so it needs
  • a filter with a larger area requires a retention distance between the outer surface of the filter and the stepped side wall 213 (the retention distance may be 0.15 to 0.35 mm) to reduce the risk of filter chipping.
  • the size of the photosensitive chip is larger than 1/2.8 inch.
  • the size of the photosensitive chip can be implemented as 1/2 inch, 1/1.7 inch, etc.
  • the cloth glue width of the IR glue can be limited to the range of 0.2 ⁇ 0.25mm. The cloth glue width can not only ensure the reliability and stability of the filter bonding, but also Avoid the filter component occupying an excessively large radial size (here the radial size refers to the size in the direction perpendicular to the optical axis of the camera module).
  • FIG. 15 shows a schematic cross-sectional view of a multi-camera module in an embodiment of the present application.
  • each camera module may include a lens assembly 100, a filter assembly 200, and a photosensitive assembly 300 (refer to FIGS. 1 and 13 in combination).
  • the outer surface of the lens assembly 100 may be the outer surface of the lens carrier or the motor 120, and the optical lens (including the lens barrel and the lens group installed in the lens) may be installed in the lens carrier or the motor 120.
  • a glue 410 can be arranged between the lens carrier/motor 120 and the metal outer bracket 400, so as to assemble the camera module and the metal outer bracket 400 together.
  • the filter assembly includes a filter holder 210 and a filter 220, wherein the filter holder 210 includes a lens base portion 211 and a cantilever beam 212.
  • the gap between the filter holder 210 and the metal outer holder 400 can also be arranged with glue (for example, in the case of the left camera module in FIG. 10, where The gap between the filter holder 210 and the metal outer holder 400 can be arranged with glue 420), so as to improve the reliability of the adhesion of the camera module and the metal outer holder 400.
  • glue for example, in the case of the left camera module in FIG. 10, where The gap between the filter holder 210 and the metal outer holder 400 can be arranged with glue 420, so as to improve the reliability of the adhesion of the camera module and the metal outer holder 400.
  • the filter holder 210 deforms relatively large at high temperature or low temperature
  • the metal outer holder 400 with relatively small CTE deforms less, which is equivalent to the metal outer holder 400 limits the deformation of the filter holder 210, so greater stress may be generated inside the filter holder 210.
  • a retention distance of at least 0.15 mm is provided between the outer surface of the filter 220 and the stepped sidewall 213 of the filter holder 210, so as to separate the filter 220 from the stepped sidewall 213.
  • the stress transmitted from the filter holder 210 to the filter 220 can be effectively reduced, thereby preventing the filter 220 from being broken or bent.
  • the lens assembly adhesive 430 (for the convenience of description, hereinafter referred to as the lens assembly adhesive 430) hardens at a low temperature, the stress of the metal outer bracket 400 acting on the lens assembly will also pass through the hardened lens The component adhesive 430 is transferred to the filter holder 210, thereby causing the internal stress of the filter holder 210 to increase. On the other hand, sometimes the lens assembly adhesive 430 will overflow outwards and contact the metal outer bracket 400. When the temperature changes, the metal outer bracket 400 deforms less and thus forms an inward shrinkage effect.
  • the metal outer bracket 400 The shrinkage of the metal outer bracket 400 (note that this shrinkage of the metal outer bracket 400 is relative to the camera module), which causes the stress of the metal outer bracket 400 to pass through the overflowing lens assembly adhesive 430 (the adhesive 430 will be in the Hardening at low temperature) is transferred to the filter holder 210, causing greater stress inside the filter holder 210. Therefore, when the camera module is only bonded to the metal outer bracket 400 through the lens carrier/motor 120, a thickness of at least 0.15 mm is provided between the outer surface of the filter 220 and the stepped side wall 213 of the filter bracket 210 Keeping the distance can also effectively reduce the stress transmitted from the filter holder 210 to the filter 220, thereby preventing the filter 220 from being broken or bent.
  • the coating position of the lens assembly adhesive 430 can also be retracted inward to prevent the lens assembly adhesive 430 from overflowing, thereby avoiding the lens assembly adhesive 430 and The metal outer bracket 400 contacts, thereby reducing the stress of the filter bracket 210 and preventing the stress from being transmitted to the filter 220 and causing the filter 220 to break or bend.
  • Retracting the coating position of the lens assembly adhesive 430 inward means that the lens assembly adhesive 430 is arranged in an area closer to the optical axis, or in other words, the outer surface of the lens assembly adhesive 430 is larger than the lens assembly and The outer surface of the color filter assembly is closer to the optical axis, where the optical axis refers to the optical axis of the camera module.
  • the multi-camera module includes at least two camera modules and a metal outer bracket 400, wherein at least one module is implemented as a main camera module and/or a wide-angle module, which is similar to the above-mentioned embodiment.
  • the metal outer frame 400 has an accommodating hole.
  • at least two camera modules share the accommodating hole, that is, the accommodating hole simultaneously accommodates at least two camera modules .
  • the at least two camera modules can be fabricated on the same circuit board (or substrate), that is, at least two camera modules share the same circuit board (or substrate).

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Blocking Light For Cameras (AREA)
  • Studio Devices (AREA)

Abstract

La présente invention concerne un ensemble de filtration de lumière, comprenant un support de filtre de lumière et un filtre de lumière. Le support de filtre de lumière comprend une partie siège de lentille annulaire et une poutre de bras de suspension formée par l'extension vers l'intérieur à partir de la partie siège de lentille ; le centre de la poutre de bras de suspension a un trou de passage de lumière ; un pas est formé au niveau d'une position où la partie siège de lentille et la poutre de bras de suspension sont reliées ; le pas a une paroi latérale de pas pour relier la surface de la partie siège de lentille et celle de la poutre de bras de suspension ; le filtre de lumière est collé à la surface de la poutre de bras de suspension au moyen d'une colle adhésive ; et une distance entre la surface latérale externe du filtre de lumière et la paroi latérale de pas est de 0,15 mm ou plus. La présente invention concerne en outre un module de caméra et un module multi-caméras correspondants. La présente invention peut réduire le risque d'effritement ou de courbure du filtre de lumière dans le module de caméra et le module multi-caméras, peut être mieux adapté du fait que le filtre de lumière présente un rapport surface sur épaisseur important, et peut aider à réaliser la miniaturisation d'un ensemble de filtrage de couleur et du module de caméra lors de la réduction du risque d'effritement ou de courbure du filtre de lumière dans le module de caméra.
PCT/CN2020/135728 2020-01-10 2020-12-11 Ensemble de filtration de lumière, module de caméra et module multi-caméras WO2021139481A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117896608A (zh) * 2024-03-15 2024-04-16 宁波舜宇光电信息有限公司 马达、摄像模组及组装方法、电子设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010141756A (ja) * 2008-12-15 2010-06-24 Hoya Corp 撮像装置及び一眼レフ式デジタルカメラ
JP5899862B2 (ja) * 2011-11-21 2016-04-06 ミツミ電機株式会社 カメラモジュール
CN105847645A (zh) * 2016-05-11 2016-08-10 宁波舜宇光电信息有限公司 基于一体封装工艺的摄像模组及其一体基座组件及制造方法
CN105898120A (zh) * 2016-04-21 2016-08-24 宁波舜宇光电信息有限公司 基于模塑工艺的摄像模组
CN107959770A (zh) * 2016-10-14 2018-04-24 宁波舜宇光电信息有限公司 基于一体封装工艺的摄像模组和阵列摄像模组
CN209299368U (zh) * 2018-12-25 2019-08-23 南昌欧菲光电技术有限公司 镜座、镜头组件、摄像模组及智能终端
CN110661935A (zh) * 2018-06-29 2020-01-07 三赢科技（深圳）有限公司 镜头模组

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102955216A (zh) * 2011-08-29 2013-03-06 鸿富锦精密工业（深圳）有限公司 镜头模组
CN104811589A (zh) * 2014-01-27 2015-07-29 南昌欧菲光电技术有限公司 便携式电子装置及其相机模组
CN107422444B (zh) * 2017-08-25 2023-07-14 Oppo广东移动通信有限公司 终端、滤光片组件、摄像头模组以及制作方法
US20190137722A1 (en) * 2017-11-09 2019-05-09 James Patrick Hennessy Filter System for Ultra Wide Angle Lenses
CN110636185A (zh) * 2018-06-21 2019-12-31 宁波舜宇光电信息有限公司 感光组件、摄像模组及智能终端设备
CN109274876B (zh) * 2018-11-05 2021-05-07 中芯集成电路（宁波）有限公司 感光组件及其封装方法、镜头模组、电子设备

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010141756A (ja) * 2008-12-15 2010-06-24 Hoya Corp 撮像装置及び一眼レフ式デジタルカメラ
JP5899862B2 (ja) * 2011-11-21 2016-04-06 ミツミ電機株式会社 カメラモジュール
CN105898120A (zh) * 2016-04-21 2016-08-24 宁波舜宇光电信息有限公司 基于模塑工艺的摄像模组
CN105847645A (zh) * 2016-05-11 2016-08-10 宁波舜宇光电信息有限公司 基于一体封装工艺的摄像模组及其一体基座组件及制造方法
CN107959770A (zh) * 2016-10-14 2018-04-24 宁波舜宇光电信息有限公司 基于一体封装工艺的摄像模组和阵列摄像模组
CN110661935A (zh) * 2018-06-29 2020-01-07 三赢科技（深圳）有限公司 镜头模组
CN209299368U (zh) * 2018-12-25 2019-08-23 南昌欧菲光电技术有限公司 镜座、镜头组件、摄像模组及智能终端

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117896608A (zh) * 2024-03-15 2024-04-16 宁波舜宇光电信息有限公司 马达、摄像模组及组装方法、电子设备

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