WO2022165855A1 - Structure de couvercle étanche à la poussière et terminal mobile - Google Patents

Structure de couvercle étanche à la poussière et terminal mobile Download PDF

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Publication number
WO2022165855A1
WO2022165855A1 PCT/CN2021/076106 CN2021076106W WO2022165855A1 WO 2022165855 A1 WO2022165855 A1 WO 2022165855A1 CN 2021076106 W CN2021076106 W CN 2021076106W WO 2022165855 A1 WO2022165855 A1 WO 2022165855A1
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WO
WIPO (PCT)
Prior art keywords
fixing ring
ring
cover structure
dust cover
blade
Prior art date
Application number
PCT/CN2021/076106
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English (en)
Chinese (zh)
Inventor
林立恒
郭侲圻
许智杰
游琮伟
杨承修
Original Assignee
欧菲光集团股份有限公司
南昌欧菲光电技术有限公司
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.)
Filing date
Publication date
Application filed by 欧菲光集团股份有限公司, 南昌欧菲光电技术有限公司 filed Critical 欧菲光集团股份有限公司
Priority to PCT/CN2021/076106 priority Critical patent/WO2022165855A1/fr
Publication of WO2022165855A1 publication Critical patent/WO2022165855A1/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

Definitions

  • the present invention relates to the field of camera technology of terminal equipment, in particular to a dust cover structure and a mobile terminal.
  • the cameras of terminal devices such as mobile phones and tablets tend to be high-quality, high-resolution and other professional trends.
  • Due to the limitation of the space size of terminal devices there will be some designs of external lenses, but the structural design of external lenses will be There is an opening on the fuselage shell to expose the photosensitive element of the camera module, which is easy to cause dust pollution and affect the image quality.
  • Due to the limited space of the camera module of the terminal how to design a dust-proof structure to adapt to the camera module to play a role Good dustproof effect is a project that needs to be researched at present.
  • the invention discloses a dust cover structure and a mobile terminal.
  • the dust cover structure is installed at the opening of the groove structure of the rear shell of the terminal equipment, which can effectively prevent dust from entering the groove structure. It protects the camera module and ensures the imaging quality of the camera module. It is applied to the design of the detachable lens, which can effectively protect the components in the camera module and facilitate maintenance.
  • the overall structure of the dust cover is simple and occupies a The space is small, and the blade driving method is simple and reliable.
  • the present invention provides the following technical solutions:
  • a dust cover structure comprising:
  • annular support the annular support includes an upper fixing ring and a lower fixing ring fixed to each other, the upper fixing ring and the lower fixing ring are opposite and coaxially arranged;
  • At least two vanes located between the upper fixing ring and the lower fixing ring the at least two vanes are distributed around the circumference of the axis line of the upper fixing cover, and one end of each vane wraps around a
  • the axis is rotatably mounted on the ring support, the axis is parallel to the axis of the upper fixed ring; when each blade is in the first position, the at least two blades cooperate to completely close the the inner opening of the upper fixing ring; when each of the blades is located at the second station, an opening is formed between the at least two blades;
  • a rotating ring the rotating ring is located between the blade and the upper fixed ring, the rotating ring and the upper fixed ring are coaxially arranged, and the rotation can be rotated around the axis of the upper fixed ring
  • the rotating ring is installed on the annular support; the side of the rotating ring facing the blades is provided with a driving column corresponding to each of the blades, and the axis line of the driving column is parallel to the axis.
  • the side of the blade facing the driving column is provided with an arc-shaped guide groove matched with the driving column, and the rotating ring is connected to the rotating ring through the driving column and the guiding groove.
  • the vanes are drivingly connected to move the vanes about the axis.
  • the dust cover structure is installed at the opening of the groove structure of the rear shell of the terminal device, which can effectively prevent dust from entering the groove structure, protect the camera module, and ensure the imaging quality of the camera module.
  • the design of the detachable lens it can effectively protect the components in the camera module, easy to maintain, and the overall structure of the dust cover is simple, the space occupied is small, and the blade driving method is simple and reliable.
  • a raised push block protruding toward the center of the rotating ring is provided on the inner side of the rotating ring.
  • a raised push block protruding toward the center of the rotating ring is arranged on the inner side of the rotating ring, which can be directly pushed by the external structure to drive the rotating ring to rotate.
  • the raised push blocks are evenly distributed around the axis of the rotating ring.
  • At least two raised push blocks are arranged, which is more conducive to pushing the rotating ring to rotate, and the raised push blocks are evenly distributed around the axis line of the rotating ring, so that the rotating ring is evenly stressed, which is more conducive to the rotation stability of the rotating ring, and then Make sure the blade moves smoothly.
  • the number of the raised push blocks is three or four.
  • the number of protruding push blocks is set to three or four, which further improves the stability of pushing the rotation of the rotating ring and ensures the smooth movement of the blades.
  • each of the blades is rotatably mounted on the upper fixing ring around the axis, and the rotation is rotatably mounted on the upper fixing ring around the axis of the upper fixing ring. ring.
  • Both the vane and the rotating ring are installed on the upper fixing ring, which has a compact structure and saves the space occupied by the structure.
  • the lower fixing ring can be directly aligned with the upper fixing ring. It can be installed and fixed without any other complicated alignment adjustment, which is convenient for installation.
  • a side of the upper fixing ring facing the lower fixing ring has a concave portion and a supporting portion, the supporting portion is opposite to the lower fixing ring, and the concave portion is used for the lower fixing ring to cooperate, to form an annular groove with an opening facing the axis of the upper fixed ring, and the rotating ring is installed in the annular groove;
  • the supporting portion forms a first surface facing the lower fixing ring surface, the lower fixing ring facing the upper fixing ring surface forms a second surface, and a gap is formed between the first surface and the second surface , in the extension direction parallel to the axis line of the upper fixing ring, each of the blades is located in the gap, and one end of each of the blades is rotatably installed on the support portion around the axis. first surface.
  • the upper fixing ring and the lower fixing ring are directly fixed and installed, and the side of the upper fixing ring facing the lower fixing ring is provided with a concave portion to accommodate the rotating ring, which simplifies the installation structure, and is between the support portion of the upper fixing ring and the lower fixing ring.
  • the blades are arranged in the gaps, so that the blades move in the gaps to realize opening and closing, and the blades and the rotating ring are installed between the upper fixed ring and the lower fixed ring, which has a compact structure, saves space, and has good stability.
  • the dust cover structure further includes:
  • a first limiting structure for limiting the position of the blade at the first station
  • a second limiting structure for defining the position of the blade at the second station.
  • the first limiting structure and the second limiting structure to respectively limit the position of the blade at the first station and the position of the second station, so that the blade can move between the first station and the second station accurately, and
  • the accurate opening or closing position of the blade is beneficial to enhance the dustproof effect of the dustproof cover structure and help the camera module to realize the camera function.
  • the first end of the guide groove forms the first limit structure; the second end of the guide groove forms the second limit structure.
  • the switching between the first station and the second station is defined by the guide stroke length of the guide groove and the driving column, and the first end of the guide groove defines the position of the blade in the first station, and the second end of the guide groove defines the position of the blade in the first station.
  • the position of the blade at the second station is limited, the stability is good, and the position is limited by the two ends of the guide groove, the structure is very simple, and the manufacture is easy.
  • the present invention also provides a mobile terminal, comprising any one of the dust cover structures in the above technical solutions and a rear case, the rear case is provided with a groove structure, and the groove structure is formed toward the outside of the rear case with a an opening, a photosensitive component is arranged in the groove structure, a dust cover structure is arranged in the groove structure and is located on the photosensitive side of the photosensitive component, and the dust cover structure is installed at the opening of the groove structure for use for closing the opening of the groove structure.
  • the dust cover structure can be installed at the opening of the groove structure to close the opening of the groove structure, which can protect the photosensitive components in the groove structure from dust and water, which is beneficial to improve the image quality and can
  • the components in the camera module are effectively protected and maintenance is easy;
  • the overall structure of the dust cover is simple, the blade driving method is simple and reliable, and the overall structure occupies a small space, which is suitable for the structure design of the camera module of the mobile terminal.
  • the mobile terminal further includes a lens assembly, and the lens assembly is located on the side of the dust cover structure away from the photosensitive assembly; when the raised push block is provided inside the rotating ring, the The peripheral side of the end of the lens assembly facing the dust cover structure is provided with a hook structure for cooperating with the protruding push block, so as to realize the linkage between the rotating ring and the lens assembly.
  • the lens assembly cooperates with the photosensitive assembly to realize the camera function, and a hook structure is arranged on the rear side of the end of the lens assembly installed on the dust cover structure, which can cooperate with the raised push block of the rotating ring to rotate the lens assembly when the lens assembly is installed. Then, the blades of the dust cover structure can be opened when the lens assembly is installed, which is convenient to operate, easy to use, and easy to carry out. Camera work.
  • FIG. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram corresponding to a dust cover structure and a lens assembly provided by an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a dust cover structure provided by an embodiment of the present invention when the blades are closed;
  • FIG. 4 is a schematic structural diagram of a dust cover structure provided by an embodiment of the present invention when the blades are opened;
  • FIG. 5 is a schematic cross-sectional structural diagram of a dust cover structure provided by an embodiment of the present invention.
  • FIG. 6 is a schematic partial cross-sectional structural diagram of a dust cover structure provided by an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of an explosion structure of a dust cover structure provided by an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of an upper fixing ring according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a rotating ring provided by an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a mechanism for closing and matching a blade according to an embodiment of the present invention.
  • Icon 1-rear shell; 2-camera module; 3-dust cover structure; 4-lens assembly; 11-groove structure; 31-upper fixing ring; 32-lower fixing ring; 33-blade; 34-rotation Ring; 35-annular groove; 41-hook structure; 311-recessed part; 312-support part; 313-rotating shaft; 331-arc guide groove; 332-through hole; .
  • an embodiment of the present invention provides a dust cover structure 3.
  • the dust cover structure 3 includes an annular bracket, and the annular bracket includes an upper fixing ring 31 and a lower fixing ring 32 that are fixed to each other.
  • the fixing ring 31 and the lower fixing ring 32 are arranged opposite and coaxially, the inner opening of the upper fixing ring 31 and the inner opening of the lower fixing ring 32 are arranged oppositely;
  • each blade 33 can be rotated around the axis It is rotatably mounted on the side of the upper fixing ring 31 facing the lower fixing ring 32, or each blade 33 can be rotatably mounted on the side of the lower fixing ring 32 facing the upper fixing ring 31 around the axis;
  • the axis lines of 31 are parallel; and each blade 33 has two stations in its rotating stroke, as shown in Figure 3, when each blade 33 is located at the first station, each blade 33 is close to the upper fixed
  • the axis line of the ring 31, and the above-mentioned at least the blades 33 are matched, that is, all the blades 33 are matched to completely close the inner opening of the upper fixing ring 31. Referring to FIG.
  • each blade 33 when each blade 33 is located in the second working When in position, each blade 33 is far away from the axis line of the upper fixing ring 31, and an opening is formed between the at least two blades 33, that is, all the blades 33 are matched to form an opening at the axis line of the upper fixing ring 31.
  • the opening can expose the photosensitive chip of the camera module 2, so as to receive light imaging, so that the mobile terminal can realize the camera function; in addition, referring to FIG. 5, as shown in FIG. 9 and FIG.
  • a rotating ring 34 is installed on the annular support. The rotating ring 34 is located between the blades 33 and the upper fixed ring 31.
  • the rotating ring 34 and the upper fixed ring 31 are coaxially arranged, and the rotating ring 34 can be wound around the axis of the upper fixed ring 31.
  • the rotating ring 34 is provided with a driving column 342 corresponding to each blade 33 one-to-one on the side facing the blade 33.
  • the axis of the driving column 342 is parallel to the axis.
  • the side of the blade 33 facing the driving column 342 is provided with an arc-shaped guide groove 331 that cooperates with the driving column 342, and the rotating ring 34 is connected to the blade 33 through the driving column 342 and the guide groove 331.
  • the guide grooves 331 on each blade 33 are distributed around the axis of the upper fixing ring 31.
  • the inner side of the guide groove 331 has two opposite side walls, which can be a first side wall and a second side wall.
  • the wall is closer to the second side wall Near the axis line of the upper fixed ring 31, when the rotating ring 34 rotates in the first direction, the driving column 342 contacts the second side wall of the guide groove 331, and generates a certain pressure on the second side wall to push the blade 33 Move to the second station, that is to open the blade 33; when the rotating ring 34 rotates in the second direction, the driving column 342 contacts the first side wall of the guide groove 331, and produces a certain pressure on the first side wall , push the blade 33 to move to the first station, so that the first blade 33 is closed; drive the movement of each blade 33 through the transmission connection between the rotating ring and each blade 33, the structure is simple, easy to operate, and the driving stability is strong, and the upper fixed ring
  • the blade assembly and the rotating ring are installed between the lower fixed ring to form a dust cover structure, the overall structure is very simple, the transmission
  • the dust cover structure 3 is installed at the opening of the groove structure 11 of the rear case 1, which can effectively prevent dust from entering the groove structure 11, protect the camera module 2, and ensure that the The imaging quality of the camera module 2 is applied to the design of the detachable lens, which can effectively protect the components in the camera module 2 and facilitate maintenance, and the dust cover structure 3 has a simple overall structure and a small footprint, and the blades 33 drive The method is simple and reliable.
  • a raised push block 341 that protrudes toward the center of the rotating ring 34 can be provided inside the rotating ring 34 , and the rotating ring 34 can be driven by toggling the raised push block 341
  • the protruding push block 341 can be toggled through other external components, for example, manually toggled, the user manually toggles the protruding push block 341 with a rod-shaped component, or other external functional components can also be used.
  • a corresponding structure is arranged to cooperate with the convex push block 341 to push the convex push block 341 to act.
  • the convex push block 341 can be directly pushed through the external structure to drive the rotating ring 34 to rotate. It is simple, and the operation is very convenient, so that the movement of the rotating ring 34 is stable.
  • At least two convex push blocks 341 are provided on the inner side of the rotating ring 34 , and the convex push blocks 341 are evenly spaced around the axis of the rotating ring 34 , and at least two convex push blocks 341 are provided.
  • the pushing block 341 is more conducive to pushing the rotating ring 34 to rotate, and the raised push blocks 341 are evenly distributed around the axis of the rotating ring 34, so that the rotating ring 34 is evenly stressed, which is more conducive to the rotation stability of the rotating ring 34, In this way, it is ensured that the blade 33 moves smoothly.
  • three protruding push blocks 341 may be provided on the inner side of the rotating ring 34, or, as shown in FIG. Evenly distributed around the axis of the rotating ring is more conducive to improving the rotation stability of the rotating ring, or other numbers of raised push blocks 341 are provided inside the rotating ring 34, which is not limited in this embodiment.
  • each blade 33 is rotatably mounted on the upper fixing ring 31 around the axis and the rotating ring 34 is rotatably mounted on the upper fixing ring 31 around the axis of the upper fixing ring 31 .
  • Both the blade 33 and the rotating ring 34 are installed on the upper fixed ring 31, the structure is compact, the structure occupied space is saved, and the assembly direction is consistent during installation, after the blade 33 and the rotating ring 34 are installed on the upper fixed ring 31
  • the lower fixing ring 32 and the upper fixing ring 31 can be directly aligned, installed and fixed.
  • the assembly is very convenient, and no other complicated alignment adjustment is required, which is convenient for installation.
  • the side of the upper fixing ring 31 facing the lower fixing ring 32 has a concave portion 311 and a supporting portion 312 .
  • the bottom surface of 311 and the first surface of the supporting portion 312 facing the lower fixing ring form a stepped structure.
  • the supporting portion 312 is opposite to the lower fixing ring 32, and the recessed portion 311 can cooperate with the lower fixing ring 32 to form an opening facing upward.
  • An annular groove 35 on the axis line of the fixed ring, the rotating ring 34 is located in the annular groove 35, specifically, in the recessed portion 311 of the upper fixed ring, specifically, in the extension direction of the axis line of the upper fixed ring 31 , the rotating ring 34 is installed on the concave part 311 of the upper fixed ring 31, the surface of the rotating ring 34 facing away from the concave part 311 is flush with the first surface of the support part 312, or the surface of the rotating ring 34 facing away from the concave part 311 is lower than the support part
  • the first surface of the 312 leaves an installation space for the blade 33, which is convenient for the installation of the blade 33, and is also conducive to the compactness of the overall structure.
  • the surface of the support portion 312 facing the lower fixing ring is the first surface
  • the surface of the lower fixing ring facing the upper fixing ring is the second surface
  • a gap is formed between the first surface and the second surface, that is, the first surface and the second surface
  • a certain space is formed between the two surfaces
  • each blade 33 is located in the gap
  • one end of each blade 33 is rotatably mounted on the first surface of the support portion 312 around the axis.
  • the second surface of the lower fixing ring is opposite to the first surface of the support part 312 and the recessed part 311, and the first surface of the lower fixing ring is opposite to the recessed part 311 to form the above-mentioned
  • An annular groove is used to install the rotating ring, and a certain gap is reserved between the second surface of the lower fixed ring and the first surface of the support portion 312 to install the blade, so that the blade 33 moves in the gap to realize opening and closing, and the blade 33 and the rotating ring are connected.
  • 34 are installed between the upper fixing ring 31 and the lower fixing ring 32, so as to achieve the effect of compact structure, reduce the occupied space, and the overall structural stability is relatively strong.
  • the first surface of the support portion 312 is provided with a rotating shaft 313 corresponding to the blades 33 one-to-one, and the axis of the rotating shaft 313 coincides with the axis.
  • the blade 33 is provided with a through hole 332 matched with the rotating shaft 313 , the blade 33 is mounted on the upper fixing ring 31 through the rotating shaft 313 , and the structure is simple and reliable.
  • the blade 33 can also be installed on the lower fixed ring 32, as long as the blade 33 is connected with the rotating ring to make the blade 33 move and switch between the first station and the second station.
  • the structure may be specifically arranged according to actual requirements, which is not limited in this embodiment.
  • the dust cover structure further includes: a first limit structure for limiting the position of the blade at the first station, and a second limit structure for limiting the position of the blade at the second station structure.
  • Setting the first limiting structure and the second limiting structure to respectively limit the position of the blade at the first station and the position of the second station, so that the blade can move between the first station and the second station accurately, and Making the opening or closing position of the blade accurate is beneficial to enhance the dustproof effect of the dust cover structure 3 and help the camera module 2 to realize the camera function.
  • the first end of the guide groove 331 forms a first limit structure; the second end of the guide groove 331 A second limiting structure is formed.
  • the switching between the first station and the second station is defined by the guide stroke length of the guide groove 331 and the driving column 342, and the first end of the guide groove 331 defines the position of the blade 33 in the first station.
  • the second end of 331 defines the position of the blade 33 at the second station, and has good stability, and is limited by both ends of the guide groove 331, the structure is very simple, and it is easy to manufacture.
  • an embodiment of the present invention further provides a mobile terminal, including any one of the dust cover structures 3 provided in the above-mentioned embodiments, a rear case 1 and a camera module mounted on the rear case,
  • the dust cover structure can be formed as a part of the camera module, wherein a groove structure 11 is provided on the rear case, and the groove structure 11 is formed with an opening toward the outside of the rear case 1, and the camera module includes a photosensitive assembly 2,
  • the photosensitive component includes a photosensitive chip, which is used for photosensitive imaging.
  • the photosensitive component 2 is arranged in the groove structure 11, and the dust cover structure 3 is arranged in the groove structure and is located on the photosensitive side of the photosensitive component, that is, the dust cover structure is arranged on the photosensitive side of the photosensitive component.
  • the photosensitive component faces the side of the opening of the groove structure, then, the dust cover structure can be installed at the opening of the groove structure to close the opening of the groove structure, and the photosensitive components in the groove structure 11 can be dustproof and waterproof.
  • the protection is beneficial to improve the imaging quality, can effectively protect the components in the camera module 2, and is easy to maintain; and the dust cover structure 3 has a simple overall structure, the blade 33 is driven in a simple and reliable manner, and the overall structure occupies a small space, suitable for moving The structure design of the camera module of the terminal.
  • the mobile terminal further includes a lens assembly 4, which is located on the side of the dust cover structure away from the photosensitive assembly, and is installed at the opening of the rear shell 1 and the groove structure 11.
  • the component 4 cooperates with the photosensitive component to realize the camera function.
  • the dust cover structure 3 is installed on the edge of the opening in the groove structure 11 of the rear shell 1, which can cover the opening of the rear shell 1, and the upper fixed cover faces the outside.
  • 4 can be installed on the upper fixing ring 31, and one end of the lens assembly 4 can extend into the inner opening of the upper fixing ring 31 to cooperate with the protruding push block 341 of the rotating ring 34, wherein the lens assembly 4 faces the end of the rear case 1.
  • the mounting end is formed at the end, and a hook structure 41 is arranged on the peripheral side of the mounting end.
  • the hook structure 41 can cooperate with the raised push block 341.

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  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)

Abstract

La présente invention se rapporte au domaine technique de la photographie d'appareils terminaux, et concerne une structure de couvercle étanche à la poussière et un terminal mobile. La structure du couvercle étanche à la poussière comprend : un support annulaire, qui comprend un anneau de fixation supérieur et un anneau de fixation inférieur ; au moins deux lames, qui sont situées entre l'anneau de fixation supérieur et l'anneau de fixation inférieur, dans lequel une extrémité de chaque lame est montée de manière rotative sur le support annulaire autour d'un axe ; et un anneau rotatif, qui est agencé de manière coaxiale avec l'anneau de fixation supérieur et est monté de manière rotative sur le support annulaire autour d'une ligne centrale axiale de l'anneau de fixation supérieur ; et le côté de l'anneau rotatif qui fait face aux lames est muni de colonnes d'entraînement en correspondance un à un avec les lames, et le côté de chaque lame qui fait face à la colonne d'entraînement est muni d'une rainure de guidage d'arc coopérant avec la colonne d'entraînement. Dans la structure de couvercle étanche à la poussière, la structure de couvercle étanche à la poussière peut être utilisée pour être montée au niveau d'une ouverture d'une structure en retrait d'un boîtier arrière d'un terminal, de manière à protéger un composant photosensible d'un module de caméra et à garantir la qualité de l'image, la structure de couvercle étanche à la poussière est simple dans sa structure globale et petite dans l'espace occupé, et une manière d'entraînement de lame est simple et fiable.
PCT/CN2021/076106 2021-02-08 2021-02-08 Structure de couvercle étanche à la poussière et terminal mobile WO2022165855A1 (fr)

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PCT/CN2021/076106 WO2022165855A1 (fr) 2021-02-08 2021-02-08 Structure de couvercle étanche à la poussière et terminal mobile

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PCT/CN2021/076106 WO2022165855A1 (fr) 2021-02-08 2021-02-08 Structure de couvercle étanche à la poussière et terminal mobile

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481884B1 (fr) * 1990-10-16 1998-07-15 Sony Corporation Mécanisme pour la détection d'un changement d'angle de rotation d'un diaphragme, utilisable dans des systèmes optiques
CN101358549A (zh) * 2007-08-03 2009-02-04 西门子（中国）有限公司 一种叶片快门阀系统
CN105346895A (zh) * 2015-12-04 2016-02-24 武夷山欧卡工业设计有限公司 一种智能旋转门吐痰器
CN105540105A (zh) * 2016-01-13 2016-05-04 芜湖懒人智能科技有限公司 一种基于光伏充电的户外智能垃圾桶
CN111562709A (zh) * 2020-04-10 2020-08-21 中国科学院西安光学精密机械研究所 一种大口径全闭式可变光阑装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481884B1 (fr) * 1990-10-16 1998-07-15 Sony Corporation Mécanisme pour la détection d'un changement d'angle de rotation d'un diaphragme, utilisable dans des systèmes optiques
CN101358549A (zh) * 2007-08-03 2009-02-04 西门子（中国）有限公司 一种叶片快门阀系统
CN105346895A (zh) * 2015-12-04 2016-02-24 武夷山欧卡工业设计有限公司 一种智能旋转门吐痰器
CN105540105A (zh) * 2016-01-13 2016-05-04 芜湖懒人智能科技有限公司 一种基于光伏充电的户外智能垃圾桶
CN111562709A (zh) * 2020-04-10 2020-08-21 中国科学院西安光学精密机械研究所 一种大口径全闭式可变光阑装置

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