WO2023070360A1 - Camera assembly and electronic device - Google Patents

Camera assembly and electronic device Download PDF

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Publication number
WO2023070360A1
WO2023070360A1 PCT/CN2021/126649 CN2021126649W WO2023070360A1 WO 2023070360 A1 WO2023070360 A1 WO 2023070360A1 CN 2021126649 W CN2021126649 W CN 2021126649W WO 2023070360 A1 WO2023070360 A1 WO 2023070360A1
Authority
WO
WIPO (PCT)
Prior art keywords
pop
lens unit
camera assembly
base unit
electronic device
Prior art date
Application number
PCT/CN2021/126649
Other languages
French (fr)
Inventor
Takashi Hashimoto
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp., Ltd.
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.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp., Ltd. filed Critical Guangdong Oppo Mobile Telecommunications Corp., Ltd.
Priority to PCT/CN2021/126649 priority Critical patent/WO2023070360A1/en
Publication of WO2023070360A1 publication Critical patent/WO2023070360A1/en

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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
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G03B13/36—Autofocus systems
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/04—Bodies collapsible, foldable or extensible, e.g. book type
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/02—Focusing arrangements of general interest for cameras, projectors or printers moving lens along baseboard
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • 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

Definitions

  • the present disclosure relates to a camera assembly and an electronic device.
  • the portability of the electronic device is very important for the user and therefore the electronic devices should be as thin as possible. If the height of the camera assembly is large, the camera assembly will project outside the surface of the electronic device. Therefore, the height of the camera assembly should also be as small as possible. On the other hand, from the viewpoint of improving optical performance, a flange back distance should be sufficiently long because a proper focal length is necessary for a large size image sensor.
  • the electronic device is required to be waterproof.
  • the present disclosure aims to solve at least one of the technical problems mentioned above. Accordingly, the present disclosure needs to provide a camera assembly and an electronic device.
  • a camera assembly comprises:
  • a pop-up lens unit comprising at least one optical lens
  • a pop-up base unit comprising an image sensor and accommodating the pop-up lens unit
  • a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position
  • the accordion seal is configured to expand and contract according to a movement of the pop-up lens unit.
  • a camera assembly comprises:
  • a pop-up lens unit comprising at least one optical lens
  • a pop-up base unit comprising an image sensor and accommodating the pop-up lens unit
  • a drain hole provided in the pop-up base unit, from a gap between the pop-up lens unit and the pop-up base unit to an exterior;
  • a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position
  • a camera assembly comprises:
  • a pop-up lens unit comprising at least one optical lens
  • a pop-up base unit comprising an image sensor and accommodating the pop-up lens unit
  • a drain hole provided in the pop-up base unit, from a gap between the pop-up lens unit and the pop-up base unit to an exterior;
  • a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position
  • the accordion seal is configured to expand and contract according to a movement of the pop-up lens unit, and water infiltrating the gap is drained through the drain hole to the exterior.
  • an electronic device comprises:
  • a camera assembly having;
  • a pop-up lens unit comprising at least one optical lens
  • a pop-up base unit comprising an image sensor and accommodating the pop-up lens unit
  • a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position
  • the accordion seal is configured to expand and contract according to a movement of the pop-up lens unit.
  • an electronic device comprises:
  • a camera assembly having;
  • a pop-up lens unit comprising at least one optical lens
  • a pop-up base unit comprising an image sensor and accommodating the pop-up lens unit
  • a drain hole provided in the pop-up base unit, from a gap between the pop-up lens unit and the pop-up base unit to an exterior
  • a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position
  • an electronic device comprises:
  • a camera assembly having;
  • a pop-up lens unit comprising at least one optical lens
  • a pop-up base unit comprising an image sensor and accommodating the pop-up lens unit
  • a drain hole provided in the pop-up base unit, from a gap between the pop-up lens unit and the pop-up base unit to an exterior
  • a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position
  • the accordion seal is configured to expand and contract according to a movement of the pop-up lens unit against the pop-up base unit, and water infiltrating the gap is drained through the drain hole to the exterior.
  • FIG. 1 is a plan view of a first side of an electronic device according to the first, second and third embodiments of the present disclosure
  • FIG. 2 is a plan view of a second side of the electronic device according to the first, second and third embodiments of the present disclosure
  • FIG. 3 is a block diagram of the electronic device according to the first, second and third embodiments of the present disclosure.
  • FIG. 4 is a schematic drawing showing a structure of a camera assembly of the electronic device according to the first, second and third embodiments of the present disclosure
  • FIG. 5 is a schematic drawing showing the camera assembly in a home position of the electronic device according to the first, second and third embodiments of the present disclosure
  • FIG. 6 is a schematic drawing showing the camera assembly in a ready position of the electronic device according to the first, second and third embodiments of the present disclosure
  • FIG. 7 is a perspective view of the camera assembly in the home position of the electronic device according to the first, second and third embodiments of the present disclosure.
  • FIG. 8 is a perspective view of the camera assembly in the ready position of the electronic device according to the first, second and third embodiments of the present disclosure
  • FIG. 9 is a perspective view of a pop-up lens unit which is a component of the camera assembly.
  • FIG. 10 is a perspective view of a pop-up base unit which is a component of the camera assembly
  • FIG. 11 is a perspective view of the pop-up lens unit in FIG. 9 and the pop-up base unit in FIG. 10 being assembled;
  • FIG. 12A is a vertical cross-sectional view of an electronic device according to a comparative example
  • FIG. 12B is an enlarged view of the camera assembly of the electronic device shown in FIG. 12A;
  • FIG. 13A is a vertical cross-sectional view of an electronic device according to a comparative example
  • FIG. 13B is an enlarged view of the camera assembly of the electronic device shown in FIG. 13A, illustrating that water collects in and infiltrates a gap between a pop-up lens unit and a pop-up base unit;
  • FIG. 14A is a cross-sectional view of the camera assembly in the ready position of the electronic device according to a first embodiment of the present disclosure
  • FIG. 14B is a cross-sectional view of the camera assembly in the home position of the electronic device according to the first embodiment of the present disclosure
  • FIG. 15 is a cross-sectional view of the camera assembly in the home position of the electronic device according to a second embodiment of the present disclosure
  • FIG. 16 is a cross-sectional view of the camera assembly in the home position of the electronic device according to the second embodiment of the present disclosure, illustrating that water does not collect in and is drained from a gap between a pop-up lens unit and a pop-up base unit to an exterior;
  • FIG. 17 is a perspective view of the electronic device according to the second embodiment of the present disclosure.
  • FIG. 18 is a perspective and enlarged view of the camera assembly of the electronic device shown in FIG. 17;
  • FIG. 19A is a plan view of the first side of the electronic device according to a third embodiment of the present disclosure.
  • FIG. 19B is a cross-sectional view along an A-Aline of the electronic device according to the third embodiment of the present disclosure shown in FIG. 19A;
  • FIG. 20 is a flowchart of a camera control process in the electronic device according to the embodiment of the present disclosure.
  • FIG. 1 is a plan view of a first side of a basic configuration of an electronic device 10 according to first, second and third embodiments of the present disclosure
  • FIG. 2 is a plan view of a basic configuration of a second side of the electronic device 10 according to the first, second and third embodiments of the present disclosure.
  • the first side may be referred to as a back side including a battery cover 11 of the electronic device 10
  • the second side may be referred to as a front side of the electronic device 10.
  • the electronic device 10 may include a display 20 and a camera assembly 30 including a pop-up lens unit 60.
  • the battery cover 11 includes a through-hole provided therein, and the pop-up lens unit 60 can project via the through-hole and outside the surface of the battery cover 11 (aready position) , and can be retracted via the through-hole (ahome position) .
  • the electronic device 10 can be a mobile phone, a tablet computer, a personal digital assistant, and so on.
  • the camera assembly 30 has an imaging sensor which converts a light which has passed a color filter to an electrical signal.
  • a signal value of the electrical signal depends on an amount of the light which has passed the color filter.
  • the electronic device 10 may have one or more cameras.
  • FIG. 3 is a block diagram of the basic configuration of the electronic device 10 according to the first, second and third embodiment.
  • the electronic device 10 may include a main processor 40, an image signal processor 42, a memory 44, a power supply circuit 46 and a communication circuit 48.
  • the display 20, the camera assembly 30, the main processor 40, the image signal processor 42, the memory 44, the power supply circuit 46 and the communication circuit 48 are connected with each other via a bus 50.
  • the main processor 40 executes one or more program instructions stored in the memory 44.
  • the main processor 40 implements various applications and data processing of the electronic device 10 by executing the program instructions.
  • the main processor 40 may be one or more computer processors.
  • the main processor 40 is not limited to one CPU core, but it may have a plurality of CPU cores.
  • the main processor 40 may be a main CPU of the electronic device 10, an image processing unit (IPU) or a DSP provided with the camera assembly 30.
  • the image signal processor 42 controls the camera assembly 30 and processes various kinds of image data captured by the camera assembly 30 to generate a target image data.
  • the image signal processor 42 can apply a demosaicing process, a noise reduction process, an auto exposure process, an auto focus process, an auto white balance process, a high dynamic range process and so on, to the image data captured by the camera assembly 30.
  • the main processor 40 and the image signal processor 42 collaborate with each other to generate a target image data of the object captured by the camera assembly 30. That is, the main processor 40 and the image signal processor 42 are configured to capture the image of the object by means of the camera assembly 30 and apply various kinds of image processing to the captured image data.
  • the memory 44 stores program instructions to be executed by the main processor 40, and various kinds of data. For example, data of the captured image are also stored in the memory 44.
  • the memory 44 may include a high-speed RAM memory, and/or a non-volatile memory such as a flash memory and a magnetic disk memory. That is, the memory 44 may include a non-transitory computer readable medium in which the program instructions are stored.
  • the power supply circuit 46 may have a battery such as a lithium-ion rechargeable battery and a battery management unit (BMU) for managing the battery.
  • BMU battery management unit
  • the communication circuit 48 is configured to receive and transmit data to communicate with base stations of the telecommunication network system, the Internet or other devices via wireless communication.
  • the wireless communication may adopt any communication standard or protocol, including but not limited to GSM (Global System for Mobile communication) , CDMA (Code Division Multiple Access) , LTE (Long Term Evolution) , LTE-Advanced, 5th generation (5G) .
  • the communication circuit 48 may include an antenna and an RF (radio frequency) circuit.
  • FIG. 4 is a schematic drawing for showing a basic structure of the camera assembly 30 according to the first, second and third embodiments.
  • FIG. 4 shows one camera is included in the camera assembly 30.
  • the structure of the camera assembly 30 shown in FIG. 4 is just an example of one camera installed in the electronic device 10.
  • the camera assembly 30 has a pop-up lens unit 60 and a pop-up base unit 62.
  • the pop-up lens unit 60 has a lens barrel 64 which includes one or more optical lenses 66.
  • An optical axis AX of each of the optical lenses 66 is aligned. That is, the optical axes AX of the optical lenses 66 are straightly aligned.
  • the lens barrel 64 is composed of one or more convex lenses and one or more concave lenses.
  • the optical lenses 66 are also referred to as a combination lens.
  • the pop-up base unit 62 accommodates the pop-up lens unit 60.
  • the pop-up base unit 62 has an image sensor 68.
  • the image sensor 68 captures an image of an object through the lens barrel 64 of the pop-up lens unit 60. That is, the image of the object is formed on the image sensor 68.
  • the image sensor 68 converts the intensity of light passing through the optical lenses 66 to electrical signals which are sent to, for example, the main processor 40 and/or the image signal processor 42.
  • the image sensor 68 is a solid state imaging device such as a CMOS (Complementary Metal Oxide Semiconductor) image sensor, a CCD (Charge-Coupled Device) image sensor and so on.
  • the image sensor 68 is disposed at the bottom of the pop-up base unit 62. That is, if it is assumed that a first direction is a direction toward the bottom of the pop-up base unit 62 and a second direction is a direction toward the top of the pop-up base unit 62, the image sensor 68 is located at the most distant position in the first direction in the pop-up base unit 62 from the lens barrel 64.
  • the first direction and the second direction are parallel to the optical axis AX.
  • a flange back distance FB can be defined as a distance between the image sensor 68 and a first optical lens 66a which is the closest one to the image sensor 68 among the optical lenses 66. More precisely, the flange back distance FB can be defined as a distance between an imaging surface of the image sensor 68 and a closest edge of the first optical lens 66a, where the closest edge is a point closest to the image sensor 68 of the first optical lens 66a.
  • FIG. 5 is a schematic drawing for showing a home position in which the camera assembly 30 is not able to capture an image
  • FIG. 6 is a schematic drawing for showing a ready position in which the camera assembly 30 is able to capture an image.
  • the home position may be a position in which the camera assembly 30 is able to capture an image in a manual mode whereas the ready position may be a position in which the camera assembly 30 is able to capture an image in an automatic mode.
  • the pop-up lens unit 60 is accommodated in the pop-up base unit 62.
  • the lens barrel 64 may be entirely accommodated in the pop-up base unit 62 or may be partially accommodated in the pop-up base unit 62.
  • the height of the camera assembly 30 and the flange back distance FB is minimal.
  • the lens barrel 64 is entirely accommodated in the pop-up lens unit 62, the pop-up lens unit 60 and the lens barrel 64 of the camera assembly 30 does not project outside a surface of the electronic device 10.
  • the lens barrel 64 is partially accommodated in the pop-up lens unit 62, the lens barrel 64 may possibly project outside the surface of the electronic device 10 but its projection amount is slight and minimized.
  • the pop-up lens unit 60 is popped up and partially accommodated in the pop-up base unit 62.
  • the height of the camera assembly 30 and the flange back distance FB is maximized. Therefore, the pop-up lens unit 60 of the camera assembly 30 projects outside the surface of the electronic device 10.
  • the pop-up lens unit 60 can alternately be moved between the home position and the ready position.
  • a moving mechanism of the pop-up lens unit 60 in the electronic device 10 according to the first, second and third embodiments will be explained.
  • FIG. 7 is a perspective view of the camera assembly 30 in which the pop-up lens unit 60 is in the home position in the electronic device 10 according to the first, second and third embodiments
  • FIG. 8 is a perspective view of the camera assembly 30 in which the pop-up lens unit 60 is in the ready position in the electronic device 10 according to the first, second and third embodiments.
  • the camera assembly 30 shown in FIG. 7 corresponds to the camera assembly 30 of the schematic drawing shown in FIG. 5 whereas the camera assembly 30 shown in FIG. 8 corresponds to the camera assembly 30 of the schematic drawing shown in FIG. 6.
  • the pop-up lens unit 60 is accommodated inside the pop-up base unit 62. Therefore, the user can easily carry the electronic device 10 with the camera assembly 30 and thus its portability is maintained.
  • the popup lens unit 60 is popped up from the pop-up base unit 62 so that the necessary flange back distance FB is generated. Therefore, a focal length of the camera assembly 30 is increased and the optical performance of the camera assembly 30 is improved.
  • FIG. 9 is a perspective view of the pop-up lens unit 60 as one of the components
  • FIG. 10 is a perspective view of the pop-up base unit 62 as one of the components.
  • the pop-up base unit 62 has a hole 62a, and the size of the pop-up lens unit 60 is slightly smaller than the size of the hole 62a of the pop-up base unit 62. Therefore, the pop-up lens unit 60 can be introduced into the pop-up base unit 62 through the hole 62a.
  • FIG. 11 is a perspective view of the pop-up lens unit 60 and the pop-up base unit 62 in which the pop-up lens unit 60 and the pop-up base unit 62 are assembled.
  • the pop-up lens unit 600 in the camera assembly 300 is cylindrical or quadrangular, and the pop-up base unit 610 is also cylindrical or quadrangular.
  • the pop-up lens unit 600 moves in the direction indicated by the arrow as shown in FIG. 12A.
  • FIG. 12B illustrates an enlarged view of the portion including the pop-up lens unit 600 and the pop-up base unit 610.
  • a waterproof seal 630 is provided between the pop-up lens unit 600 and the pop-up base unit 620.
  • Friction occurs between the pop-up lens unit 600 and the pop-up base unit 620 while the pop-up lens unit 600 slides against the pop-up base unit 620.
  • the output of the motor for moving the pop-up lens unit 600 decreases due to the friction.
  • the friction causes the waterproof seal 630 to wear over time, and the waterproofness of the seal deteriorates.
  • the waterproofness deteriorates due to the accumulation of dust between the pop-up lens unit 600 and the pop-up base unit 620.
  • FIG. 13A illustrates a vertical cross-sectional view of the camera assembly 300 of the electronic device 100
  • FIG. 13B illustrates a portion including the pop-up lens unit 600 and the pop-up base unit 620.
  • the camera assembly 30A of a first embodiment of the present disclosure comprises an accordion seal 69 for waterproofing, made of an elastic material, provided between the pop-up lens unit 60A and the pop-up base unit 62A as shown in FIG. 14A illustrating a ready position of the camera assembly 30A, and in FIG. 14B illustrating a home position of the camera assembly 30A.
  • the material of the accordion seal 69 is, for example, silicone resin, EPDM (ethylene-propylene-diene Methylene Linkage) , fluorine resin, etc., without being limited to these materials.
  • the accordion seal 69 has an outer shape which fits an outer shape of the pop-up lens unit 60A.
  • the outer shape of the accordion seal 69 is also quadrangular.
  • the outer shape of the accordion seal 69 is also tubular.
  • the accordion seal 69 can have various outer shapes, as long as the outer shape fits the pop-up lens unit 60A.
  • the material of the accordion seal 69 may include hard and/or soft materials to stretch and fold with the movement of the pop-up lens unit 60A.
  • the selection of the material of the accordion seal 69 is important not only for waterproof but also for movement of the pop-up lens unit 60A.
  • the material of the accordion seal 69 may include, for example, plastic, polymer, rubber, nylon, thin metal sheets, composite materials, paper, and the like.
  • the thickness and geometry of the accordion seal 69 may affect the strength of the accordion seal 69. Therefore, the material, thickness and geometry of the accordion seal 69 may have various combinations, and all the combinations form a wide range of the design of the accordion seal 69.
  • An end near the object of the accordion seal 69 is connected to an outer wall of the pop-up lens unit 60A, and an end near the image sensor 69 of the accordion seal 69 is connected to an inner wall of the pop-up base unit 62A.
  • the end near the object of the accordion seal 69 is connected to a side surface of the pop-up lens unit 60, and the end near the image sensor 68 of the accordion seal 69 is connected to a side surface of the pop-up base unit 62A.
  • the accordion seal 69 for waterproofing between the side surface of the pop-up lens unit 60A and the side surface of the pop-up base unit 62A, the accordion seal 69 is configured to expand and contract according to the movement of the pop-up lens unit 60A.
  • FIG. 15 illustrating the camera assembly 30B in the home position of the electronic device
  • FIG. 16 which is an enlarged view of the camera assembly 30B.
  • a drain hole 65 is provided in the pop-up base unit 62B, from the gap between the pop-up lens unit 60B and the pop-up base unit 62B, to an exterior.
  • Water repellent processing is applied on the surface of the sliding part 67 between the pop-up lens unit 60B and the pop-up base unit 62B.
  • Hydrophilic processing is applied on the inner surface of the drain hole 65.
  • FIG. 17 illustrates an overall perspective view of the electronic device 10B according to the second embodiment of the present disclosure
  • FIG. 18 illustrates an enlarged perspective view of the camera assembly 30B of the electronic device 10B.
  • the drain hole 65 is provided to reduce the possibility of water infiltrating and collecting in the gap between the pop-up lens unit 60B and the pop-up base unit 62B.
  • the drain hole 65 by draining water through the drain hole 65, it is possible to prevent water from collecting in the gap between the pop-up lens unit 60B and the pop-up base unit 62B for a long period of time, and thus to reduce the risk of water infiltrating inside of the electronic device 10B.
  • drain hole 65 is provided in the electronic device 10B of the second embodiment of the present disclosure, the number of drain hole (s) is not limited, thus two or more drain holes may be provided.
  • FIG. 19A illustrating the camera assembly 30C in the ready position of the electronic device 10C
  • FIG. 19B which is a cross-sectional view along the A-Aline of the electronic device 10C shown in FIG. 19A.
  • the camera assembly 30C, and the electronic device 10C comprise both the configuration having the accordion seal 69 of the first embodiment of the present disclosure, and the configuration having the drain hole 65 of the second embodiment of the present disclosure.
  • the accordion seal 69 is configured to expand and contract according to the movement of the pop-up lens unit 60A, no friction occurs; thus, the accordion seal 69 does not be worn overtime, its waterproofness does not deteriorate, and there is little decrease in motor output due to friction. Further, even if water infiltrates between the pop-up lens unit 60B and the pop-up base unit 62B, it is smoothly drained through the drain hole 65. Therefore, it is possible to prevent water from collecting in the gap for a long period of time, and to reduce the risk of water infiltrating inside of the electronic device 10B.
  • FIG. 20 shows a flowchart of a camera control processing executed in the electronic device 10 according to the present embodiment.
  • the camera control processing is executed by, for example, the main processor 40. That is, the main processor 40 constitutes a controller of the electronic device 10 in the present embodiment.
  • the camera control processing is repeatedly executed in the electronic device 10 after the electronic device is activated.
  • the electronic device 10 judges whether an activation signal is inputted (Step S10) .
  • the activation signal is generated when the user activates an application to capture an image by using the camera assembly 30 or an application to take a video movie by using the camera assembly 30.
  • Step S10 If the activation signal is not inputted (Step S10: No) , the electronic device 10 according to the present embodiment repeats the Step S10 and waits for the activation signal to be inputted.
  • Step S10 if the activation signal is inputted (Step S10: Yes) , the electronic device 10 according to the present embodiment turns on the camera assembly 30 (Step S12) . That is, since the camera assembly 30 is in the home position as shown in FIG. 5 and FIG. 7, the electronic device 10 changes the camera assembly 30 from the home position to the ready position as shown in FIG. 6 and FIG. 8.
  • the electronic device 10 judges whether an inactivation signal is inputted (Step S14) .
  • the inactivation signal is generated when the user inactivates the application to capture an image by using the camera assembly 30 or the application to take a video movie by using the camera assembly 30.
  • Step S14 the electronic device 10 according to the present embodiment repeats the Step S14 and waits for the inactivation signal to be inputted. That is, the ready position of the camera assembly 30 is maintained, and the user can capture an image or take a video movie by using the camera assembly 30.
  • Step S14 if the inactivation signal is inputted (Step S14: Yes) , the electronic device 10 according to the present embodiment turns off the camera assembly 30 (Step S16) . That is, since the camera assembly 30 is in the ready position as shown in FIG. 6 and FIG. 8, the electronic device 10 changes the camera assembly 30 from the ready position to the home position as shown in FIG. 5 and FIG. 7.
  • the camera control processing returns to the Step 10 and repeats the Step S10 and subsequent steps.
  • the camera assembly 30 of the electronic device 10 As mentioned above, in the camera assembly 30 of the electronic device 10 according to the present embodiment, the camera assembly 30 being in the ready position secures the necessary flange back distance FB because the pop-up lens unit 60 is popped up from the pop-up base unit 62. Therefore, high optical performance can be ensured.
  • the camera assembly 30 being in the home position ensures the portability of the electronic device 10 because the pop-up lens unit 60 is accommodated in the pop-up base unit 62. Therefore, the user can easily carry the electronic device 10.
  • the camera module and the electronic device according to the embodiment of the present disclosure can achieve the required optical performance and maintain their small size and low cost with being waterproof.
  • first and second are used herein for purposes of description and are not intended to indicate or imply relative importance or significance or to imply the number of indicated technical features.
  • the feature defined with “first” and “second” may comprise one or more of this feature.
  • a plurality of means two or more than two, unless specified otherwise.
  • the terms “mounted” , “connected” , “coupled” and the like are used broadly, and may be, for example, fixed connections, detachable connections, or integral connections; may also be mechanical or electrical connections; may also be direct connections or indirect connections via intervening structures; may also be inner communications of two elements, which can be understood by those skilled in the art according to specific situations.
  • a structure in which a first feature is "on" or “below” a second feature may include an embodiment in which the first feature is in direct contact with the second feature, and may also include an embodiment in which the first feature and the second feature are not in direct contact with each other, but are contacted via an additional feature formed therebetween.
  • a first feature "on” , “above” or “on top of” a second feature may include an embodiment in which the first feature is right or obliquely “on” , “above” or “on top of” the second feature, or just means that the first feature is at a height higher than that of the second feature; while a first feature “below” , “under” or “on bottom of” a second feature may include an embodiment in which the first feature is right or obliquely “below” , "under” or “on bottom of” the second feature, or just means that the first feature is at a height lower than that of the second feature.
  • Any process or method described in a flow chart or described herein in other ways may be understood to include one or more modules, segments or portions of codes of executable instructions for achieving specific logical functions or steps in the process, and the scope of a preferred embodiment of the present disclosure includes other implementations, in which it should be understood by those skilled in the art that functions may be implemented in a sequence other than the sequences shown or discussed, including in a substantially identical sequence or in an opposite sequence.
  • the logic and/or step described in other manners herein or shown in the flow chart, for example, a particular sequence table of executable instructions for realizing the logical function may be specifically achieved in any computer readable medium to be used by the instruction execution system, device or equipment (such as the system based on computers, the system comprising processors or other systems capable of obtaining the instruction from the instruction execution system, device and equipment and executing the instruction) , or to be used in combination with the instruction execution system, device and equipment.
  • the computer readable medium may be any device adaptive for including, storing, communicating, propagating or transferring programs to be used by or in combination with the instruction execution system, device or equipment.
  • the computer readable medium comprise but are not limited to: an electronic connection (an electronic device) with one or more wires, a portable computer enclosure (a magnetic device) , a random access memory (RAM) , a read only memory (ROM) , an erasable programmable read-only memory (EPROM or a flash memory) , an optical fiber device and a portable compact disk read-only memory (CDROM) .
  • the computer readable medium may even be a paper or other appropriate medium capable of printing programs thereon, this is because, for example, the paper or other appropriate medium may be optically scanned and then edited, decrypted or processed with other appropriate methods when necessary to obtain the programs in an electric manner, and then the programs may be stored in the computer memories.
  • each part of the present disclosure may be realized by the hardware, software, firmware or their combination.
  • a plurality of steps or methods may be realized by the software or firmware stored in the memory and executed by the appropriate instruction execution system.
  • the steps or methods may be realized by one or a combination of the following techniques known in the art: a discrete logic circuit having a logic gate circuit for realizing a logic function of a data signal, an application-specific integrated circuit having an appropriate combination logic gate circuit, a programmable gate array (PGA) , a field programmable gate array (FPGA) , etc.
  • each function cell of the embodiments of the present disclosure may be integrated in a processing module, or these cells may be separate physical existence, or two or more cells are integrated in a processing module.
  • the integrated module may be realized in a form of hardware or in a form of software function modules. When the integrated module is realized in a form of software function module and is sold or used as a standalone product, the integrated module may be stored in a computer readable storage medium.
  • the storage medium mentioned above may be read-only memories, magnetic disks, CD, etc.

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Abstract

A camera assembly according to the embodiment of the present disclosure includes a pop-up lens unit, comprising at least one optical lens, a pop-up base unit, comprising an image sensor and accommodating the pop-up lens unit, an accordion seal provided between the pop-up lens unit and the pop-up base unit, and a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a ready position and a home position, wherein the accordion seal is configured to expand and contract according to a movement of the pop-up lens unit.

Description

CAMERA ASSEMBLY AND ELECTRONIC DEVICE TECHNICAL FIELD
The present disclosure relates to a camera assembly and an electronic device.
BACKGROUND
Electrical devices such as smartphones and tablet terminals are widely used in our daily life. Nowadays, many of the electronic devices are equipped with a camera assembly for capturing images. Some of the electronic devices are portable and are thus easy to carry. Therefore, a user of the electronic device can easily take a picture of an object by using the camera assembly of the electronic device anytime, anywhere.
The portability of the electronic device is very important for the user and therefore the electronic devices should be as thin as possible. If the height of the camera assembly is large, the camera assembly will project outside the surface of the electronic device. Therefore, the height of the camera assembly should also be as small as possible. On the other hand, from the viewpoint of improving optical performance, a flange back distance should be sufficiently long because a proper focal length is necessary for a large size image sensor.
Furthermore, the electronic device is required to be waterproof.
As explained above, conventional camera assembly and electronic device cannot achieve the abovementioned requirements, while maintain their small size and low cost.
SUMMARY
The present disclosure aims to solve at least one of the technical problems mentioned above. Accordingly, the present disclosure needs to provide a camera assembly and an electronic device.
In accordance with the present disclosure, a camera assembly comprises:
a pop-up lens unit, comprising at least one optical lens;
a pop-up base unit, comprising an image sensor and accommodating the pop-up lens unit;
an accordion seal provided between the pop-up lens unit and the pop-up base unit; and
a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position;
wherein the accordion seal is configured to expand and contract according to a movement of the pop-up lens unit.
In accordance with the present disclosure, a camera assembly comprises:
a pop-up lens unit comprising at least one optical lens;
a pop-up base unit comprising an image sensor and accommodating the pop-up lens unit;
a seal provided between the pop-up lens unit and the pop-up base unit;
a drain hole provided in the pop-up base unit, from a gap between the pop-up lens unit and the pop-up base unit to an exterior; and
a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position
wherein water infiltrating the gap is drained through the drain hole to the exterior.
In accordance with the present disclosure, a camera assembly comprises:
a pop-up lens unit, comprising at least one optical lens;
a pop-up base unit, comprising an image sensor and accommodating the pop-up lens unit;
an accordion seal provided between the pop-up lens unit and the pop-up base unit;
a drain hole provided in the pop-up base unit, from a gap between the pop-up lens unit and the pop-up base unit to an exterior; and
a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position;
wherein the accordion seal is configured to expand and contract according to a movement of the pop-up lens unit, and water infiltrating the gap is drained through the drain hole to the exterior.
In accordance with the present disclosure, an electronic device comprises:
a camera assembly, having;
a pop-up lens unit, comprising at least one optical lens,
a pop-up base unit, comprising an image sensor and accommodating the pop-up lens unit,
an accordion seal provided between the pop-up lens unit and the pop-up base unit, and
a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position;
wherein the accordion seal is configured to expand and contract according to a movement of the pop-up lens unit.
In accordance with the present disclosure, an electronic device comprises:
a camera assembly, having;
a pop-up lens unit comprising at least one optical lens,
a pop-up base unit comprising an image sensor and accommodating the pop-up lens unit,
a seal provided between the pop-up lens unit and the pop-up base unit,
a drain hole provided in the pop-up base unit, from a gap between the pop-up lens unit and the pop-up base unit to an exterior, and
a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position; and
a case for enclosing the camera assembly,
wherein water infiltrating the gap is drained through the drain hole to the exterior.
In accordance with the present disclosure, an electronic device comprises:
a camera assembly, having;
a pop-up lens unit comprising at least one optical lens,
a pop-up base unit comprising an image sensor and accommodating the pop-up lens unit,
an accordion seal provided between the pop-up lens unit and the pop-up base unit,
a drain hole provided in the pop-up base unit, from a gap between the pop-up lens unit and the pop-up base unit to an exterior, and
a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position; and
a case for enclosing the camera assembly,
wherein the accordion seal is configured to expand and contract according to a movement of the pop-up lens unit against the pop-up base unit, and water infiltrating the gap is drained through the drain hole to the exterior.
BRIEF DESCRIPTION OF THE DRAWINGS
These and/or other aspects and advantages of embodiments of the present disclosure will become apparent and more readily appreciated from the following descriptions made with reference to the drawings, in which:
FIG. 1 is a plan view of a first side of an electronic device according to the first, second and third embodiments of the present disclosure;
FIG. 2 is a plan view of a second side of the electronic device according to the first, second and third embodiments of the present disclosure;
FIG. 3 is a block diagram of the electronic device according to the first, second and third embodiments of the present disclosure;
FIG. 4 is a schematic drawing showing a structure of a camera assembly of the electronic device according to the first, second and third embodiments of the present disclosure;
FIG. 5 is a schematic drawing showing the camera assembly in a home position of the electronic device according to the first, second and third embodiments of the present disclosure;
FIG. 6 is a schematic drawing showing the camera assembly in a ready position of the electronic device according to the first, second and third embodiments of the present disclosure;
FIG. 7 is a perspective view of the camera assembly in the home position of the electronic device according to the first, second and third embodiments of the present disclosure;
FIG. 8 is a perspective view of the camera assembly in the ready position of the electronic device according to the first, second and third embodiments of the present disclosure;
FIG. 9 is a perspective view of a pop-up lens unit which is a component of the camera assembly;
FIG. 10 is a perspective view of a pop-up base unit which is a component of the camera assembly;
FIG. 11 is a perspective view of the pop-up lens unit in FIG. 9 and the pop-up base unit in FIG. 10 being assembled;
FIG. 12A is a vertical cross-sectional view of an electronic device according to a comparative example;
FIG. 12B is an enlarged view of the camera assembly of the electronic device shown in FIG. 12A;
FIG. 13A is a vertical cross-sectional view of an electronic device according to a comparative example;
FIG. 13B is an enlarged view of the camera assembly of the electronic device shown in FIG. 13A, illustrating that water collects in and infiltrates a gap between a pop-up lens unit and a pop-up base unit;
FIG. 14A is a cross-sectional view of the camera assembly in the ready position of the electronic device according to a first embodiment of the present disclosure;
FIG. 14B is a cross-sectional view of the camera assembly in the home position of the electronic device according to the first embodiment of the present disclosure;
FIG. 15 is a cross-sectional view of the camera assembly in the home position of the electronic device according to a second embodiment of the present disclosure;
FIG. 16 is a cross-sectional view of the camera assembly in the home position of the electronic device according to the second embodiment of the present disclosure, illustrating that water does not collect in and is drained from a gap between a pop-up lens unit and a pop-up base unit to an exterior;
FIG. 17 is a perspective view of the electronic device according to the second embodiment of the present disclosure;
FIG. 18 is a perspective and enlarged view of the camera assembly of the electronic device shown in FIG. 17;
FIG. 19A is a plan view of the first side of the electronic device according to a third embodiment of the present disclosure;
FIG. 19B is a cross-sectional view along an A-Aline of the electronic device according to the third embodiment of the present disclosure shown in FIG. 19A; and
FIG. 20 is a flowchart of a camera control process in the electronic device according to the embodiment of the present disclosure.
DETAILED DESCRIPTION
Embodiments of the present disclosure will be described in detail and examples of the embodiments will be illustrated in the accompanying drawings. The same or similar elements and the elements having same or similar functions are denoted by like reference numerals throughout the descriptions. The embodiments described herein with reference to the drawings are explanatory and aim to illustrate the present disclosure, but shall not be construed to limit the present disclosure.
Before explaining the features of a camera assembly and an electronic device according to the first, second and third embodiments of the present disclosure, the schematic configuration of  the entire camera assembly and the entire electronic device are explained for better understanding.
FIG. 1 is a plan view of a first side of a basic configuration of an electronic device 10 according to first, second and third embodiments of the present disclosure and FIG. 2 is a plan view of a basic configuration of a second side of the electronic device 10 according to the first, second and third embodiments of the present disclosure. The first side may be referred to as a back side including a battery cover 11 of the electronic device 10 whereas the second side may be referred to as a front side of the electronic device 10.
As shown in FIG. 1 and FIG. 2, the electronic device 10 may include a display 20 and a camera assembly 30 including a pop-up lens unit 60. The battery cover 11 includes a through-hole provided therein, and the pop-up lens unit 60 can project via the through-hole and outside the surface of the battery cover 11 (aready position) , and can be retracted via the through-hole (ahome position) .
As an example, the electronic device 10 can be a mobile phone, a tablet computer, a personal digital assistant, and so on.
The camera assembly 30 has an imaging sensor which converts a light which has passed a color filter to an electrical signal. A signal value of the electrical signal depends on an amount of the light which has passed the color filter. The electronic device 10 may have one or more cameras.
FIG. 3 is a block diagram of the basic configuration of the electronic device 10 according to the first, second and third embodiment. As shown in FIG. 3, in addition to the display 20 and the camera assembly 30, the electronic device 10 may include a main processor 40, an image signal processor 42, a memory 44, a power supply circuit 46 and a communication circuit 48. The display 20, the camera assembly 30, the main processor 40, the image signal processor 42, the memory 44, the power supply circuit 46 and the communication circuit 48 are connected with each other via a bus 50.
The main processor 40 executes one or more program instructions stored in the memory 44. The main processor 40 implements various applications and data processing of the electronic device 10 by executing the program instructions. The main processor 40 may be one or more computer processors. The main processor 40 is not limited to one CPU core, but it may have a plurality of CPU cores. The main processor 40 may be a main CPU of the electronic device 10, an image processing unit (IPU) or a DSP provided with the camera assembly 30.
The image signal processor 42 controls the camera assembly 30 and processes various kinds of image data captured by the camera assembly 30 to generate a target image data. For example, the image signal processor 42 can apply a demosaicing process, a noise reduction process, an auto exposure process, an auto focus process, an auto white balance process, a high dynamic range process and so on, to the image data captured by the camera assembly 30.
In the first, second and third embodiments, the main processor 40 and the image signal processor 42 collaborate with each other to generate a target image data of the object captured by the camera assembly 30. That is, the main processor 40 and the image signal processor 42 are configured to capture the image of the object by means of the camera assembly 30 and apply various kinds of image processing to the captured image data.
The memory 44 stores program instructions to be executed by the main processor 40, and various kinds of data. For example, data of the captured image are also stored in the memory 44.
The memory 44 may include a high-speed RAM memory, and/or a non-volatile memory such as a flash memory and a magnetic disk memory. That is, the memory 44 may include a non-transitory computer readable medium in which the program instructions are stored.
The power supply circuit 46 may have a battery such as a lithium-ion rechargeable battery and a battery management unit (BMU) for managing the battery.
The communication circuit 48 is configured to receive and transmit data to communicate with base stations of the telecommunication network system, the Internet or other devices via  wireless communication. The wireless communication may adopt any communication standard or protocol, including but not limited to GSM (Global System for Mobile communication) , CDMA (Code Division Multiple Access) , LTE (Long Term Evolution) , LTE-Advanced, 5th generation (5G) . The communication circuit 48 may include an antenna and an RF (radio frequency) circuit.
FIG. 4 is a schematic drawing for showing a basic structure of the camera assembly 30 according to the first, second and third embodiments. FIG. 4 shows one camera is included in the camera assembly 30. In other words, the structure of the camera assembly 30 shown in FIG. 4 is just an example of one camera installed in the electronic device 10.
As shown in FIG. 4, the camera assembly 30 has a pop-up lens unit 60 and a pop-up base unit 62.
The pop-up lens unit 60 has a lens barrel 64 which includes one or more optical lenses 66. An optical axis AX of each of the optical lenses 66 is aligned. That is, the optical axes AX of the optical lenses 66 are straightly aligned. In the first, second and third embodiments, the lens barrel 64 is composed of one or more convex lenses and one or more concave lenses. In other words, the optical lenses 66 are also referred to as a combination lens.
The pop-up base unit 62 accommodates the pop-up lens unit 60. In the first, second and third embodiments, the pop-up base unit 62 has an image sensor 68. The image sensor 68 captures an image of an object through the lens barrel 64 of the pop-up lens unit 60. That is, the image of the object is formed on the image sensor 68. The image sensor 68 converts the intensity of light passing through the optical lenses 66 to electrical signals which are sent to, for example, the main processor 40 and/or the image signal processor 42.
In the first, second and third embodiments, for example, the image sensor 68 is a solid state imaging device such as a CMOS (Complementary Metal Oxide Semiconductor) image sensor, a CCD (Charge-Coupled Device) image sensor and so on. In an example of the camera assembly 30 according to the first, second and third embodiments, the image sensor 68 is disposed at the bottom of the pop-up base unit 62. That is, if it is assumed that a first direction is a direction toward the bottom of the pop-up base unit 62 and a second direction is a direction toward the top of the pop-up base unit 62, the image sensor 68 is located at the most distant position in the first direction in the pop-up base unit 62 from the lens barrel 64. Here, the first direction and the second direction are parallel to the optical axis AX.
Here, a flange back distance FB can be defined as a distance between the image sensor 68 and a first optical lens 66a which is the closest one to the image sensor 68 among the optical lenses 66. More precisely, the flange back distance FB can be defined as a distance between an imaging surface of the image sensor 68 and a closest edge of the first optical lens 66a, where the closest edge is a point closest to the image sensor 68 of the first optical lens 66a.
The pop-up lens unit 60 is movably held in the pop-up base unit 62. That is, the pop-up lens unit 60 can be moved to the first direction and the second direction. FIG. 5 is a schematic drawing for showing a home position in which the camera assembly 30 is not able to capture an image whereas FIG. 6 is a schematic drawing for showing a ready position in which the camera assembly 30 is able to capture an image.
Alternatively, the home position may be a position in which the camera assembly 30 is able to capture an image in a manual mode whereas the ready position may be a position in which the camera assembly 30 is able to capture an image in an automatic mode.
As shown in FIG. 5, when the camera assembly 30 is in the home position, the pop-up lens unit 60 is accommodated in the pop-up base unit 62. In this case, the lens barrel 64 may be entirely accommodated in the pop-up base unit 62 or may be partially accommodated in the pop-up base unit 62. As a result, the height of the camera assembly 30 and the flange back distance FB is minimal.
If the lens barrel 64 is entirely accommodated in the pop-up lens unit 62, the pop-up lens unit 60 and the lens barrel 64 of the camera assembly 30 does not project outside a surface of the  electronic device 10. On the other hand, if the lens barrel 64 is partially accommodated in the pop-up lens unit 62, the lens barrel 64 may possibly project outside the surface of the electronic device 10 but its projection amount is slight and minimized.
As shown in FIG. 6, when the camera assembly 30 is in the ready position, the pop-up lens unit 60 is popped up and partially accommodated in the pop-up base unit 62. As a result, the height of the camera assembly 30 and the flange back distance FB is maximized. Therefore, the pop-up lens unit 60 of the camera assembly 30 projects outside the surface of the electronic device 10.
In other words, the pop-up lens unit 60 can alternately be moved between the home position and the ready position. Next, a moving mechanism of the pop-up lens unit 60 in the electronic device 10 according to the first, second and third embodiments will be explained.
FIG. 7 is a perspective view of the camera assembly 30 in which the pop-up lens unit 60 is in the home position in the electronic device 10 according to the first, second and third embodiments, and FIG. 8 is a perspective view of the camera assembly 30 in which the pop-up lens unit 60 is in the ready position in the electronic device 10 according to the first, second and third embodiments.
The camera assembly 30 shown in FIG. 7 corresponds to the camera assembly 30 of the schematic drawing shown in FIG. 5 whereas the camera assembly 30 shown in FIG. 8 corresponds to the camera assembly 30 of the schematic drawing shown in FIG. 6.
As shown in FIG. 7, in the home position, the pop-up lens unit 60 is accommodated inside the pop-up base unit 62. Therefore, the user can easily carry the electronic device 10 with the camera assembly 30 and thus its portability is maintained. On the other hand, as shown in FIG. 8, in the ready position, the popup lens unit 60 is popped up from the pop-up base unit 62 so that the necessary flange back distance FB is generated. Therefore, a focal length of the camera assembly 30 is increased and the optical performance of the camera assembly 30 is improved.
FIG. 9 is a perspective view of the pop-up lens unit 60 as one of the components, and FIG. 10 is a perspective view of the pop-up base unit 62 as one of the components.
As shown in FIG. 9 and FIG. 10, the pop-up base unit 62 has a hole 62a, and the size of the pop-up lens unit 60 is slightly smaller than the size of the hole 62a of the pop-up base unit 62. Therefore, the pop-up lens unit 60 can be introduced into the pop-up base unit 62 through the hole 62a.
FIG. 11 is a perspective view of the pop-up lens unit 60 and the pop-up base unit 62 in which the pop-up lens unit 60 and the pop-up base unit 62 are assembled.
Before explaining the features of the camera assembly and an electronic device according to the first, second and third embodiments of the present disclosure, an electronic device according to a comparative example is explained for the sake of comparison.
In an electronic device 100 according to the comparative example, as shown in FIG. 12A, the pop-up lens unit 600 in the camera assembly 300 is cylindrical or quadrangular, and the pop-up base unit 610 is also cylindrical or quadrangular. The pop-up lens unit 600 moves in the direction indicated by the arrow as shown in FIG. 12A.
FIG. 12B illustrates an enlarged view of the portion including the pop-up lens unit 600 and the pop-up base unit 610.
A waterproof seal 630 is provided between the pop-up lens unit 600 and the pop-up base unit 620.
Friction occurs between the pop-up lens unit 600 and the pop-up base unit 620 while the pop-up lens unit 600 slides against the pop-up base unit 620. The output of the motor for moving the pop-up lens unit 600 decreases due to the friction. Further, the friction causes the waterproof seal 630 to wear over time, and the waterproofness of the seal deteriorates. In addition, the waterproofness deteriorates due to the accumulation of dust between the pop-up lens unit 600 and the pop-up base unit 620.
FIG. 13A illustrates a vertical cross-sectional view of the camera assembly 300 of the electronic device 100, and FIG. 13B illustrates a portion including the pop-up lens unit 600 and the pop-up base unit 620.
As shown in FIG. 13B, due to the above-mentioned friction generated between the pop-up lens unit 600 and the pop-up base unit 620, water collects in and infiltrates a gap between the pop-up lens unit 600 and the pop-up base unit 620.
In contrast, the camera assembly 30A of a first embodiment of the present disclosure comprises an accordion seal 69 for waterproofing, made of an elastic material, provided between the pop-up lens unit 60A and the pop-up base unit 62A as shown in FIG. 14A illustrating a ready position of the camera assembly 30A, and in FIG. 14B illustrating a home position of the camera assembly 30A. The material of the accordion seal 69 is, for example, silicone resin, EPDM (ethylene-propylene-diene Methylene Linkage) , fluorine resin, etc., without being limited to these materials.
The accordion seal 69 has an outer shape which fits an outer shape of the pop-up lens unit 60A. For example, when the outer shape of the pop-up lens unit 60A is quadrangular, the outer shape of the accordion seal 69 is also quadrangular. When the outer shape of the pop-up lens unit 60A is tubular, the outer shape of the accordion seal 69 is also tubular. However, the accordion seal 69 can have various outer shapes, as long as the outer shape fits the pop-up lens unit 60A.
The material of the accordion seal 69 may include hard and/or soft materials to stretch and fold with the movement of the pop-up lens unit 60A.
The selection of the material of the accordion seal 69 is important not only for waterproof but also for movement of the pop-up lens unit 60A.
The material of the accordion seal 69 may include, for example, plastic, polymer, rubber, nylon, thin metal sheets, composite materials, paper, and the like.
Further, the thickness and geometry of the accordion seal 69 may affect the strength of the accordion seal 69. Therefore, the material, thickness and geometry of the accordion seal 69 may have various combinations, and all the combinations form a wide range of the design of the accordion seal 69.
An end near the object of the accordion seal 69 is connected to an outer wall of the pop-up lens unit 60A, and an end near the image sensor 69 of the accordion seal 69 is connected to an inner wall of the pop-up base unit 62A. In FIG. 14A and FIG. 14B, the end near the object of the accordion seal 69 is connected to a side surface of the pop-up lens unit 60, and the end near the image sensor 68 of the accordion seal 69 is connected to a side surface of the pop-up base unit 62A. According to this construction, although there is a possibility that water infiltrates a gap between an outside of the accordion seal 69 connected to an upper portion of the pop-up lens unit 60A, and an upper portion of the base unit 62A, there is no possibility that water infiltrates a gap between an inside of the accordion seal 69 and the pop-up lens unit 60A. Therefore, it is possible to prevent the electronic device 10A from being damaged.
According to the above-mentioned configuration of the first embodiment of the present disclosure, by arranging the accordion seal 69 for waterproofing between the side surface of the pop-up lens unit 60A and the side surface of the pop-up base unit 62A, the accordion seal 69 is configured to expand and contract according to the movement of the pop-up lens unit 60A.
Therefore, no friction occurs while the pop-up lens unit 60A moves. Since the accordion seal 69 does not slide against the pop-up lens unit 60A and the pop-up base unit 62A, the accordion seal 69 does not be worn overtime and its waterproofness does not deteriorate.
Further, since the accordion seal 69 does not slide against the pop-up lens unit 60A and the pop-up base unit 62A, there is little decrease in motor output due to the friction.
A camera assembly and an electronic device according to a second embodiment of the present disclosure is described referring to FIG. 15 illustrating the camera assembly 30B in the  home position of the electronic device, and to FIG. 16 which is an enlarged view of the camera assembly 30B.
A drain hole 65 is provided in the pop-up base unit 62B, from the gap between the pop-up lens unit 60B and the pop-up base unit 62B, to an exterior.
Water repellent processing is applied on the surface of the sliding part 67 between the pop-up lens unit 60B and the pop-up base unit 62B. Hydrophilic processing is applied on the inner surface of the drain hole 65.
Even if water infiltrates the gap (the sliding part 67) between the pop-up lens unit 60B and the pop-up base unit 62B, it does not accumulate and can efficiently and smoothly drained through the drain hole 65 to an exterior.
FIG. 17 illustrates an overall perspective view of the electronic device 10B according to the second embodiment of the present disclosure, and FIG. 18 illustrates an enlarged perspective view of the camera assembly 30B of the electronic device 10B.
As described above, according to the camera assembly 30B and the electronic device 10B of the second embodiment of the present disclosure, the drain hole 65 is provided to reduce the possibility of water infiltrating and collecting in the gap between the pop-up lens unit 60B and the pop-up base unit 62B.
According to the camera assembly and the electronic device of the above comparative example shown in FIGs. 12A, 12B, 13A and 13B, as a drain hole is not provided, if water infiltrates between the pop-up lens unit and the pop-up base unit, water will continue to accumulate in the gap, and there is a possibility that water will gradually infiltrate inside the electronic device.
According to the second embodiment of the present disclosure, by draining water through the drain hole 65, it is possible to prevent water from collecting in the gap between the pop-up lens unit 60B and the pop-up base unit 62B for a long period of time, and thus to reduce the risk of water infiltrating inside of the electronic device 10B.
Although one drain hole 65 is provided in the electronic device 10B of the second embodiment of the present disclosure, the number of drain hole (s) is not limited, thus two or more drain holes may be provided.
A camera assembly and an electronic device according to a third embodiment of the present disclosure is described referring to FIG. 19A illustrating the camera assembly 30C in the ready position of the electronic device 10C, and to FIG. 19B which is a cross-sectional view along the A-Aline of the electronic device 10C shown in FIG. 19A.
The camera assembly 30C, and the electronic device 10C comprise both the configuration having the accordion seal 69 of the first embodiment of the present disclosure, and the configuration having the drain hole 65 of the second embodiment of the present disclosure.
According to the camera assembly 30C and the electronic device 10C of the third embodiment of the present disclosure, as the accordion seal 69 is configured to expand and contract according to the movement of the pop-up lens unit 60A, no friction occurs; thus, the accordion seal 69 does not be worn overtime, its waterproofness does not deteriorate, and there is little decrease in motor output due to friction. Further, even if water infiltrates between the pop-up lens unit 60B and the pop-up base unit 62B, it is smoothly drained through the drain hole 65. Therefore, it is possible to prevent water from collecting in the gap for a long period of time, and to reduce the risk of water infiltrating inside of the electronic device 10B.
FIG. 20 shows a flowchart of a camera control processing executed in the electronic device 10 according to the present embodiment. The camera control processing is executed by, for example, the main processor 40. That is, the main processor 40 constitutes a controller of the electronic device 10 in the present embodiment.
In addition, the camera control processing is repeatedly executed in the electronic device 10 after the electronic device is activated.
As shown in FIG. 20, in the camera control processing, the electronic device 10 judges whether an activation signal is inputted (Step S10) . For example, the activation signal is generated when the user activates an application to capture an image by using the camera assembly 30 or an application to take a video movie by using the camera assembly 30.
If the activation signal is not inputted (Step S10: No) , the electronic device 10 according to the present embodiment repeats the Step S10 and waits for the activation signal to be inputted.
On the other hand, if the activation signal is inputted (Step S10: Yes) , the electronic device 10 according to the present embodiment turns on the camera assembly 30 (Step S12) . That is, since the camera assembly 30 is in the home position as shown in FIG. 5 and FIG. 7, the electronic device 10 changes the camera assembly 30 from the home position to the ready position as shown in FIG. 6 and FIG. 8.
After the camera assembly 30 has been changed to the ready position, the electronic device 10 according to the present embodiment judges whether an inactivation signal is inputted (Step S14) . For example, the inactivation signal is generated when the user inactivates the application to capture an image by using the camera assembly 30 or the application to take a video movie by using the camera assembly 30.
If the inactivation signal is not inputted (Step S14: No) , the electronic device 10 according to the present embodiment repeats the Step S14 and waits for the inactivation signal to be inputted. That is, the ready position of the camera assembly 30 is maintained, and the user can capture an image or take a video movie by using the camera assembly 30.
On the other hand, if the inactivation signal is inputted (Step S14: Yes) , the electronic device 10 according to the present embodiment turns off the camera assembly 30 (Step S16) . That is, since the camera assembly 30 is in the ready position as shown in FIG. 6 and FIG. 8, the electronic device 10 changes the camera assembly 30 from the ready position to the home position as shown in FIG. 5 and FIG. 7.
After the camera assembly 30 has been changed to the home position, the camera control processing returns to the Step 10 and repeats the Step S10 and subsequent steps.
As mentioned above, in the camera assembly 30 of the electronic device 10 according to the present embodiment, the camera assembly 30 being in the ready position secures the necessary flange back distance FB because the pop-up lens unit 60 is popped up from the pop-up base unit 62. Therefore, high optical performance can be ensured.
On the other hand, the camera assembly 30 being in the home position ensures the portability of the electronic device 10 because the pop-up lens unit 60 is accommodated in the pop-up base unit 62. Therefore, the user can easily carry the electronic device 10.
As explained above, the camera module and the electronic device according to the embodiment of the present disclosure can achieve the required optical performance and maintain their small size and low cost with being waterproof.
In the description of embodiments of the present disclosure, it is to be understood that terms such as "central" , "longitudinal" , "transverse" , "length" , "width" , "thickness" , "upper" , "lower" , "front" , "rear" , "back" , "left" , "right" , "vertical" , "horizontal" , "top" , "bottom" , "inner" , "outer" , "clockwise" and "counterclockwise" should be construed to refer to the orientation or the position as described or as shown in the drawings under discussion. These relative terms are only used to simplify description of the present disclosure, and do not indicate or imply that the device or element referred to must have a particular orientation, or constructed or operated in a particular orientation. Thus, these terms cannot be constructed to limit the present disclosure.
In addition, terms such as "first" and "second" are used herein for purposes of description and are not intended to indicate or imply relative importance or significance or to imply the number of indicated technical features. Thus, the feature defined with "first" and "second" may comprise one or more of this feature. In the description of the present disclosure, "a plurality of" means two or more than two, unless specified otherwise.
In the description of embodiments of the present disclosure, unless specified or limited otherwise, the terms "mounted" , "connected" , "coupled" and the like are used broadly, and may be, for example, fixed connections, detachable connections, or integral connections; may also be mechanical or electrical connections; may also be direct connections or indirect connections via intervening structures; may also be inner communications of two elements, which can be understood by those skilled in the art according to specific situations.
In the embodiments of the present disclosure, unless specified or limited otherwise, a structure in which a first feature is "on" or "below" a second feature may include an embodiment in which the first feature is in direct contact with the second feature, and may also include an embodiment in which the first feature and the second feature are not in direct contact with each other, but are contacted via an additional feature formed therebetween. Furthermore, a first feature "on" , "above" or "on top of" a second feature may include an embodiment in which the first feature is right or obliquely "on" , "above" or "on top of" the second feature, or just means that the first feature is at a height higher than that of the second feature; while a first feature "below" , "under" or "on bottom of" a second feature may include an embodiment in which the first feature is right or obliquely "below" , "under" or "on bottom of" the second feature, or just means that the first feature is at a height lower than that of the second feature.
Various embodiments and examples are provided in the above description to implement different structures of the present disclosure. In order to simplify the present disclosure, certain elements and settings are described in the above. However, these elements and settings are only by way of example and are not intended to limit the present disclosure. In addition, reference numbers and/or reference letters may be repeated in different examples in the present disclosure. This repetition is for the purpose of simplification and clarity and does not refer to relations between different embodiments and/or settings. Furthermore, examples of different processes and materials are provided in the present disclosure. However, it would be appreciated by those skilled in the art that other processes and/or materials may be also applied.
Reference throughout this specification to "an embodiment" , "some embodiments" , "an exemplary embodiment" , "an example" , "a specific example" or "some examples" means that a particular feature, structure, material, or characteristics described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. Thus, the appearances of the above phrases throughout this specification are not necessarily referring to the same embodiment or example of the present disclosure. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
Any process or method described in a flow chart or described herein in other ways may be understood to include one or more modules, segments or portions of codes of executable instructions for achieving specific logical functions or steps in the process, and the scope of a preferred embodiment of the present disclosure includes other implementations, in which it should be understood by those skilled in the art that functions may be implemented in a sequence other than the sequences shown or discussed, including in a substantially identical sequence or in an opposite sequence.
The logic and/or step described in other manners herein or shown in the flow chart, for example, a particular sequence table of executable instructions for realizing the logical function, may be specifically achieved in any computer readable medium to be used by the instruction execution system, device or equipment (such as the system based on computers, the system comprising processors or other systems capable of obtaining the instruction from the instruction execution system, device and equipment and executing the instruction) , or to be used in combination with the instruction execution system, device and equipment. As to the specification, "the computer readable medium" may be any device adaptive for including, storing, communicating, propagating or transferring programs to be used by or in combination with the instruction execution system, device or equipment. More specific examples of the computer  readable medium comprise but are not limited to: an electronic connection (an electronic device) with one or more wires, a portable computer enclosure (a magnetic device) , a random access memory (RAM) , a read only memory (ROM) , an erasable programmable read-only memory (EPROM or a flash memory) , an optical fiber device and a portable compact disk read-only memory (CDROM) . In addition, the computer readable medium may even be a paper or other appropriate medium capable of printing programs thereon, this is because, for example, the paper or other appropriate medium may be optically scanned and then edited, decrypted or processed with other appropriate methods when necessary to obtain the programs in an electric manner, and then the programs may be stored in the computer memories.
It should be understood that each part of the present disclosure may be realized by the hardware, software, firmware or their combination. In the above embodiments, a plurality of steps or methods may be realized by the software or firmware stored in the memory and executed by the appropriate instruction execution system. For example, if it is realized by the hardware, likewise in another embodiment, the steps or methods may be realized by one or a combination of the following techniques known in the art: a discrete logic circuit having a logic gate circuit for realizing a logic function of a data signal, an application-specific integrated circuit having an appropriate combination logic gate circuit, a programmable gate array (PGA) , a field programmable gate array (FPGA) , etc.
Those skilled in the art shall understand that all or parts of the steps in the above exemplifying method of the present disclosure may be achieved by commanding the related hardware with programs. The programs may be stored in a computer readable storage medium, and the programs comprise one or a combination of the steps in the method embodiments of the present disclosure when run on a computer.
In addition, each function cell of the embodiments of the present disclosure may be integrated in a processing module, or these cells may be separate physical existence, or two or more cells are integrated in a processing module. The integrated module may be realized in a form of hardware or in a form of software function modules. When the integrated module is realized in a form of software function module and is sold or used as a standalone product, the integrated module may be stored in a computer readable storage medium.
The storage medium mentioned above may be read-only memories, magnetic disks, CD, etc.
Although embodiments of the present disclosure have been shown and described, it would be appreciated by those skilled in the art that the embodiments are explanatory and cannot be construed to limit the present disclosure, and changes, modifications, alternatives and variations can be made in the embodiments without departing from the scope of the present disclosure.

Claims (26)

  1. A camera assembly, comprising:
    a pop-up lens unit, comprising at least one optical lens;
    a pop-up base unit, comprising an image sensor and accommodating the pop-up lens unit;
    an accordion seal provided between the pop-up lens unit and the pop-up base unit; and
    a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position;
    wherein the accordion seal is configured to expand and contract according to a movement of the pop-up lens unit.
  2. The camera assembly according to claim 1, wherein one end of the accordion seal is connected to the pop-up lens unit and another end of the accordion seal is connected to the pop-up lens base unit.
  3. The camera assembly according to claim 1, wherein one end of the accordion seal is set on the outer wall of the pop-up lens unit, and another end of the accordion seal is set on the inner wall of the pop-up base unit.
  4. The camera assembly according to claim 1, wherein the pop-up base unit has a substrate, the pop-up lens unit is set on a substrate of the pop-up base unit, the accordion seal wraps around the pop-up lens unit for waterproof, and a sensor element is connected to the substrate of the pop-up base unit.
  5. The camera assembly according to any one of claims 1 to 4, wherein the moving mechanism can change a flange back distance.
  6. A camera assembly, comprising:
    a pop-up lens unit, comprising at least one optical lens;
    a pop-up base unit, comprising an image sensor and accommodating the pop-up lens unit;
    a seal provided between the pop-up lens unit and the pop-up base unit;
    a drain hole provided in the pop-up base unit, from a gap between the pop-up lens unit and the pop-up base unit to an exterior; and
    a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position;
    wherein water infiltrating the gap is drained through the drain hole to the exterior.
  7. The camera assembly, according to claim 6, wherein hydrophilic processing is applied on an inner surface of the drain hole.
  8. The camera assembly, according to claim 6 or 7, wherein the drain hole is used to drain water from the outer surface of the pop-up lens unit.
  9. The camera assembly, according to any one of claims 6 to 8, wherein water repellent processing is applied on a surface of a sliding part between the pop-up lens unit and the pop-up base unit.
  10. The camera assembly according to any one of claims 6 to 9, wherein the moving mechanism can change a flange back distance.
  11. A camera assembly, comprising:
    a pop-up lens unit, comprising at least one optical lens;
    a pop-up base unit, comprising an image sensor and accommodating the pop-up lens unit;
    an accordion seal provided between the pop-up lens unit and the pop-up base unit;
    a drain hole provided in the pop-up base unit, from a gap between the pop-up lens unit and the pop-up base unit to an exterior; and
    a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position;
    wherein the accordion seal is configured to expand and contract according to a movement of the pop-up lens unit, and water infiltrating the gap is drained through the drain hole to the exterior.
  12. The camera assembly according to claim 11, wherein one end of the accordion seal is set on the outer wall of the pop-up lens unit, and another end of the accordion seal is set on the inner wall of the pop-up base unit.
  13. The camera assembly according to claim 11 or 12, wherein the pop-up base unit has a substrate, the pop-up lens unit is set on a substrate of the pop-up base unit, the accordion seal wraps around the pop-up lens unit for waterproof, and a sensor element is connected to the substrate of the pop-up base unit.
  14. The camera assembly, according to any one of claims 11 to 13, wherein hydrophilic processing is applied on the inner surface of the drain hole.
  15. The camera assembly, according to any one of claims 11 to 14, wherein the drain hole is used to drain water from the outer surface of the pop-up lens unit.
  16. The camera assembly, according to any one of claims 11 to 15, wherein water repellent processing is applied on the surface of a sliding part between the pop-up lens unit and the pop-up base unit.
  17. The camera assembly according to any one of claims 11 to 16, wherein the moving mechanism can change a flange back distance.
  18. An electronic device comprising:
    a camera assembly, having;
    a pop-up lens unit, comprising at least one optical lens,
    a pop-up base unit, comprising an image sensor and accommodating the pop-up lens unit,
    an accordion seal provided between the pop-up lens unit and the pop-up base unit, and
    a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position;
    wherein the accordion seal is configured to expand and contract according to a movement of the pop-up lens unit.
  19. The electronic device, according to claim 18, wherein one end of the accordion seal is set on the outer wall of the pop-up lens unit, and another end of the accordion seal is set on the inner wall of the pop-up base unit.
  20. The electronic device according to claim 18 or 19, wherein the moving mechanism can change a flange back distance.
  21. An electronic device, comprising:
    a camera assembly, having;
    a pop-up lens unit, comprising at least one optical lens,
    a pop-up base unit, comprising an image sensor and accommodating the pop-up lens unit,
    a seal provided between the pop-up lens unit and the pop-up base unit,
    a drain hole provided in the pop-up base unit, from a gap between the pop-up lens unit and the pop-up base unit to an exterior, and
    a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position; and
    a case for enclosing the camera assembly,
    wherein water infiltrating the gap is drained through the drain hole to the exterior.
  22. The electronic device, according to claim 21, wherein hydrophilic processing is applied on an inner surface of the drain hole.
  23. The electronic device according to claim 21 or 22, wherein the moving mechanism can change a flange back distance.
  24. An electronic device, comprising:
    a camera assembly, having;
    a pop-up lens unit, comprising at least one optical lens,
    a pop-up base unit, comprising an image sensor and accommodating the pop-up lens unit,
    an accordion seal provided between the pop-up lens unit and the pop-up base unit,
    a drain hole provided in the pop-up base unit, from a gap between the pop-up lens unit and the pop-up base unit to an exterior, and
    a moving mechanism configured to move the pop-up lens unit in an optical axis direction between a home position and a ready position; and
    a case for enclosing the camera assembly,
    wherein the accordion seal is configured to expand and contract according to a movement of the pop-up lens unit against the pop-up base unit, and water infiltrating the gap is drained through the drain hole to the exterior.
  25. The electronic device, according to claim 24, wherein hydrophilic processing is applied on an inner surface of the drain hole.
  26. The electronic device according to claim 24 or 25, wherein the moving mechanism can change a flange back distance.
PCT/CN2021/126649 2021-10-27 2021-10-27 Camera assembly and electronic device WO2023070360A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003186091A (en) * 2001-12-19 2003-07-03 Fuji Photo Optical Co Ltd Pop-up flash unit
CN1507404A (en) * 2001-03-07 2004-06-23 远程接合技术公司 Improved stuffer
CN109743483A (en) * 2019-01-22 2019-05-10 Oppo（重庆）智能科技有限公司 Mobile terminal and Pop-up camera module
CN111866237A (en) * 2019-04-30 2020-10-30 北京小米移动软件有限公司 Pop-up camera module and terminal
CN112104807A (en) * 2019-06-17 2020-12-18 北京小米移动软件有限公司 Control method, system and device for front camera

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1507404A (en) * 2001-03-07 2004-06-23 远程接合技术公司 Improved stuffer
JP2003186091A (en) * 2001-12-19 2003-07-03 Fuji Photo Optical Co Ltd Pop-up flash unit
CN109743483A (en) * 2019-01-22 2019-05-10 Oppo（重庆）智能科技有限公司 Mobile terminal and Pop-up camera module
CN111866237A (en) * 2019-04-30 2020-10-30 北京小米移动软件有限公司 Pop-up camera module and terminal
CN112104807A (en) * 2019-06-17 2020-12-18 北京小米移动软件有限公司 Control method, system and device for front camera

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