CN113204154B - Diaphragm device, camera module and electronic equipment - Google Patents
Diaphragm device, camera module and electronic equipment Download PDFInfo
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- CN113204154B CN113204154B CN202110477069.3A CN202110477069A CN113204154B CN 113204154 B CN113204154 B CN 113204154B CN 202110477069 A CN202110477069 A CN 202110477069A CN 113204154 B CN113204154 B CN 113204154B
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- 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
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/02—Diaphragms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Diaphragms For Cameras (AREA)
Abstract
The application discloses diaphragm device, module and electronic equipment of making a video recording belongs to optical equipment technical field. The diaphragm device is used for adjusting the light transmission quantity of the light transmission channel. The diaphragm device comprises a shell, a flexible shading piece and a first driving piece, wherein the shell is provided with a light passing channel, and the first driving piece and the flexible shading piece are arranged on the shell; the flexible shading piece is provided with a light through hole, and the light through hole is opposite to the light through channel; the first driving piece drives the flexible shading piece to switch between a first state and a second state; under the condition that the flexible shading piece is in the first state, the flexible shading piece at least partially shades the light through channel, and the aperture of the light through hole of the flexible shading piece is a first aperture; under the condition that the flexible shading piece is in the second state, the aperture of the light through hole of the flexible shading piece is a second aperture, and the second aperture is larger than the first aperture. The proposal can solve the problem of complex structure of the diaphragm device.
Description
Technical Field
The application belongs to the technical field of optical equipment, concretely relates to diaphragm device, module and electronic equipment make a video recording.
Background
The main function of the diaphragm device is to adjust the light receiving quantity of the image sensor. Specifically, when the light-passing through hole in the aperture device is adjusted to be large, the amount of light entering the camera is large, and when the light-passing through hole in the aperture device is adjusted to be small, the amount of light entering the camera is small. The conventional diaphragm device is configured such that a plurality of blades are assembled to form a diaphragm through-hole, and the size of the diaphragm through-hole is adjusted by adjusting the position of each blade.
The traditional diaphragm device has a complex structure, the structural size of a blade is small under the condition of using a tiny camera, the mass production and the assembly are difficult, the roundness of a diaphragm through hole is difficult to control, and the light receiving quantity of an image sensor cannot be accurately adjusted.
Disclosure of Invention
The embodiment of the application aims to provide a diaphragm device, a camera module and electronic equipment, and the problem that the diaphragm device is complex in structure can be solved.
In order to solve the technical problem, the present application is implemented as follows:
the application discloses a diaphragm device, which comprises a shell, a flexible shading piece and a first driving piece, wherein the shell is provided with a light passing channel, and the first driving piece and the flexible shading piece are arranged on the shell; the flexible shading piece is provided with a light through hole, and the light through hole is opposite to the light through channel; the first driving piece drives the flexible shading piece to switch between a first state and a second state; under the condition that the flexible shading piece is in the first state, the flexible shading piece at least partially shades the light passing channel, and the aperture of the light passing hole of the flexible shading piece is a first aperture; under the condition that the flexible shading piece is in the second state, the aperture of the light through hole of the flexible shading piece is a second aperture, and the second aperture is larger than the first aperture.
The application also discloses the module of making a video recording, including the above diaphragm device.
The application also discloses electronic equipment, including the above the module of making a video recording.
The technical scheme adopted by the invention can achieve the following beneficial effects:
in the diaphragm device disclosed by the embodiment of the invention, the first driving piece drives the flexible light shading piece to deform, so that the aperture of the light through hole in the flexible light shading piece is enlarged or reduced, and the purpose of adjusting the light through quantity of the light through channel is further achieved. This diaphragm device need not to set up the equipment of a plurality of blades and forms the light ring through-hole, not only can simplify the diaphragm device, reduces diaphragm device occupation space, can also reduce the diaphragm device assembly degree of difficulty, is suitable for the volume production.
Drawings
Fig. 1 is a sectional view of a camera module according to a first embodiment of the present invention in a second state;
fig. 2 is a cross-sectional view of a camera module disclosed in a first embodiment of the present invention in a first state;
fig. 3 is a cross-sectional view of a camera module disclosed in a second embodiment of the present invention in a second state;
fig. 4 is a cross-sectional view of a camera module disclosed in a second embodiment of the present invention in a first state;
fig. 5 is a sectional view of the camera module disclosed in the second embodiment of the present invention in a second state;
fig. 6 is a sectional view of a camera module according to a second embodiment of the present invention in a first state;
fig. 7 is a right side view of the camera module disclosed in one embodiment of the present invention in a second state;
fig. 8 is a right side view of the camera module disclosed in one embodiment of the present invention in a first state;
FIG. 9 is a right side view of the diaphragm apparatus in a first state as disclosed in one embodiment of the present invention;
fig. 10 is a right side view of the diaphragm device disclosed in one embodiment of the present invention in a second state.
In the figure: 100-a housing; 200-a flexible shade; 210-a first section; 220-a second section; 300-a first driver; 310-a drive coil; 320-a magnetic member; 400-a support; 410-a guide surface; 500-a second driver; 600-a support; 610-slip layer.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The diaphragm device, the camera module, and the electronic device provided in the embodiments of the present application are described in detail below with reference to fig. 1 to 10 through specific embodiments and application scenarios thereof.
Referring to fig. 1 to 6, a diaphragm apparatus according to an embodiment of the present invention includes a housing 100, a flexible light shielding member 200, and a first driving member 300. The housing 100 is a base structure and provides a mounting base for the flexible shade 200 and/or the first driving member 300.
Referring to fig. 1 to 10, the housing 100 may have a light passing passage. The first driving member 300 and the flexible light blocking member 200 may be provided to the housing 100. Referring to fig. 2 and 4, the flexible light blocking member 200 may have a light passing hole, and the light passing hole may be opposite to the light passing channel. Optionally, the light through hole may be a circular hole to ensure the roundness of the light through hole. Specifically, the flexible light-shielding member 200 may be provided in a ring shape or a cylindrical shape. Of course, the light-passing holes can be arranged in other shapes, such as regular polygon, ellipse, heart shape, etc., according to the requirement. The present embodiment does not limit the specific shape of the light passing hole. Further, the cross-sectional shape of the light passing channel is the same as that of the light passing hole. Optionally, the light passing channel may be cylindrical, and the light passing channel may be disposed coaxially with the light passing hole, so as to improve the compactness of the diaphragm device structure.
The first driving member 300 may drive the flexible light blocking member 200 to switch between the first state and the second state. Under the condition that the flexible light-shielding member 200 is in the first state, the flexible light-shielding member 200 at least partially shields the light-transmitting channel, and the aperture of the light-transmitting hole of the flexible light-shielding member 200 is the first aperture. When the flexible light-shielding member 200 is in the second state, the aperture of the light-passing hole of the flexible light-shielding member 200 is the second aperture, and the second aperture is larger than the first aperture. The first driving member 300 allows the flexible shade 200 to be deformed by acting on the flexible shade 200. Specifically, the flexible light-shielding member 200 may be switched between the first state and the second state to adjust the amount of light passing through the light-passing channel. In the process that the flexible light shielding member 200 is switched from the first state to the second state, the first driving member 300 acts on the flexible light shielding member 200, so that the aperture of the light through hole of the flexible light shielding member 200 is gradually increased, the area of the shielded part of the light through channel is gradually reduced, and the light through amount of the light through channel is further increased. In the process that the flexible light shielding piece 200 is switched from the second state to the first state, the first driving piece 300 acts on the flexible light shielding piece 200, so that the aperture of the light through hole of the flexible light shielding piece 200 is gradually reduced, the area of the shielded part of the light through channel is gradually increased, and the light through amount of the light through channel is further reduced.
Compared with the traditional diaphragm device, the diaphragm device in the embodiment has a simpler structure, can reduce the volume of the diaphragm device, and can reduce the manufacturing difficulty and the manufacturing cost of the diaphragm device. The first driving member 300 drives the flexible light shielding member 200 to deform, which may be, but is not limited to, the first driving member 300 and the flexible light shielding member 200 are pressed or pulled to deform the flexible light shielding member 200. Specifically, the deformation amount of the flexible light shielding member 200 can be adjusted by controlling the magnitude of the acting force of the first driving member 300 acting on the flexible light shielding member 200, or the moving distance of the flexible light shielding member 200, so as to adjust the size of the light passing hole of the flexible light shielding member 200, so that the aperture of the light passing hole can be continuously changed under the action of the first driving member 300. The aperture of the light through hole can be continuously changed, so that the stepless adjustment of the aperture size of the light through hole can be realized in the deformation range of the flexible shading piece 200. In addition, in the process of adjusting the size of the light-transmitting hole, the roundness of the light-transmitting hole can be kept unchanged, so that the limitation of the roundness of the light-transmitting hole on the adjustment range of the aperture size of the light-transmitting hole can be avoided. It should be noted that, in the diaphragm device in which the light-transmitting multiple blades surround to form the light-transmitting hole, the larger the aperture of the light-transmitting hole is, the worse the roundness of the light-transmitting hole is, and thus, the adjustment range of the aperture size of the light-transmitting hole is limited.
The flexible light-shielding part 200 can be made of elastomer materials, so that the flexible light-shielding part 200 can restore the deformation under the action of self elastic force, namely, under the condition that the acting force of the first driving part 300 acting on the flexible light-shielding part 200 is reduced or disappears, the flexible light-shielding part 200 can restore the deformation under the action of self elastic force, and then the shape of the initial state can still be restored after the flexible light-shielding part 200 is repeatedly deformed, and the consistency of the shape of the light-passing hole is ensured.
The flexible shade 200 may be made of an elastomeric material. There are many types of elastomeric materials, for example: polyester elastomer materials, propylene-based elastomer materials, vinyl elastomer materials, fluoro/silicone elastomer materials, and the like. Therefore, the present application does not limit the specific material of the flexible light-shielding member 200.
Referring to fig. 1 and 2, in a case where the flexible light blocking member 200 is not subjected to an external force, that is, the flexible light blocking member 200 is in a natural state, an aperture of the light passing hole of the flexible light blocking member 200 may be smaller than or equal to the first aperture. The first driving member 300 acts on the flexible light shielding member 200 to enlarge the aperture of the flexible light shielding member 200, so that the light transmission amount of the light transmission channel is increased. Under the condition that the acting force of the first driving member 300 acting on the flexible light shielding member 200 is reduced or disappears, the flexible light shielding member 200 can recover the deformation under the action of the self elastic force, the aperture of the light through hole of the flexible light shielding member 200 is reduced, and then the light through amount of the light through channel is reduced.
Referring to fig. 9 and 10, in a case where the flexible light blocking member 200 is not subjected to an external force, that is, the flexible light blocking member 200 is in a natural state, the aperture of the light passing hole of the flexible light blocking member 200 is greater than or equal to the second aperture. The first driving member 300 reduces the aperture of the light passing hole in the flexible light shielding member 200 by acting on the flexible light shielding member 200, so that the light passing amount of the light passing channel is reduced. When the acting force of the first driving member 300 acting on the flexible light shielding member 200 is reduced or disappears, the flexible light shielding member 200 can recover the deformation under the action of the self elastic force, the aperture of the light through hole of the flexible light shielding member 200 is reduced, and then the light through amount of the light through channel is reduced.
Of course, in the case that the flexible light-shielding member 200 is not subject to the external force, the aperture of the light-passing hole of the flexible light-shielding member 200 may also be located between the first aperture and the second aperture. Specifically, the first driving member 300 can drive the aperture of the flexible light-shielding member 200 to increase or decrease. For this reason, the embodiment of the present application does not limit the specific size of the aperture of the light-passing hole of the flexible light-shielding member 200 when the flexible light-shielding member 200 is not subjected to an external force.
Referring to fig. 1 to 8, the diaphragm apparatus may further include a support 400. The supporting member 400 may be disposed in the light-passing channel, an annular receiving cavity is formed between the supporting member 400 and the casing 100, and a diameter of the supporting member 400 is greater than a diameter of the light-passing hole. In the process of switching the flexible light blocking member 200 from the first state to the second state, the flexible light blocking member 200 is retracted along the support member 400 into the annular accommodating chamber. During the process of switching the flexible light blocking member 200 from the second state to the first state, the flexible light blocking member 200 at least partially protrudes out of the annular accommodating cavity along the support member 400. Alternatively, the support member 400 may be provided with a through hole so that light can pass through the through hole of the support member 400. The diameter of the supporting member 400 is greater than the diameter of the light through hole, and then in the process that the first driving member 300 drives the flexible light shielding member 200 to contract into the annular accommodating cavity, the flexible light shielding member 200 and the supporting member 400 are mutually extruded, so that the aperture of the light through hole of the flexible light shielding member 200 is increased. In the process that the flexible light shielding member 200 is driven by the first driving member 300 to extend outwards to the annular accommodation, the flexible light shielding member 200 can recover the deformation under the action of self elasticity, and then the aperture of the light through hole is reduced.
In an alternative embodiment, the flexible shade 200 may be annular. Specifically, the outer ring edge of the flexible light shielding member 200 is connected to the first driving member 300, so that the first driving member 300 drives the flexible light shielding member 200 to move relative to the supporting member 400, and further the supporting member 400 and the flexible light shielding member 200 are relatively pressed, and further the flexible light shielding member 200 is deformed. Referring to fig. 1 and 2, the flexible shade 200 is positioned at one end of the support 400. Under the effect of the first driving member 300, the flexible light shielding member 200 is contracted into the annular accommodating cavity, so that the flexible light shielding member 200 and the supporting member 400 are mutually extruded, and the aperture of the light through hole of the flexible light shielding member 200 is enlarged.
In an alternative embodiment, the flexible shade 200 may be ring-shaped, and the outer ring edge of the flexible shade 200 may be fixedly connected to the housing 100. The supporting member 400 is in sliding fit with the flexible light shielding member 200, and the first driving member 300 is connected with the supporting member 400, so that the first driving member 300 can drive the supporting member 400 to move relative to the flexible light shielding member 200, so that the flexible light shielding member 200 can contract in the annular accommodating cavity or extend out of the annular accommodating cavity, so that the flexible light shielding member 200 can deform under the extrusion of the supporting member 400, and the adjustment of the aperture size of the light through hole is realized.
The flexible light blocking member 200 may have a cylindrical shape. Specifically, the flexible light shielding member 200 may be at least partially sleeved on the first end of the supporting member 400, so that the first driving member 300 drives the flexible light shielding member 200 to move relative to the supporting member 400, and further the flexible light shielding member 200 may be retracted into the annular accommodating cavity or extend out of the annular accommodating cavity. Specifically, in the process that the flexible light-shielding member 200 is shrunk into the annular accommodating cavity, the length of the flexible light-shielding member 200 beyond the first end of the supporting member 400 is gradually decreased, and then the aperture of the light-passing hole of the flexible light-shielding member 200 is increased under the action of the supporting member 400. In the process that the flexible light-shielding member 200 extends to the annular accommodating cavity, the length of the flexible light-shielding member 200 beyond the first end of the supporting member 400 is gradually increased, and the portion of the flexible light-shielding member 200 beyond the first end of the supporting member 400 loses the support of the supporting member 400, so that the portion of the flexible light-shielding member 200 beyond the first end of the supporting member 400 recovers deformation under the action of self elasticity, and further the aperture of the light-passing hole is reduced. In this scheme, the flexible shade 200 is sleeved on the support 400 and/or wraps an end of the support 400, so that the flexible shade 200 can also protect the support 400 in case of collision of the support 400 with the outside.
In the above embodiment, the flexible light shielding member 200 may be slidably engaged with the housing 100 and/or the supporting member 400, the supporting member 400 is fixedly disposed relative to the housing 100, and the first driving member 300 may be connected to the flexible light shielding member 200, so that the flexible light shielding member 200 is driven by the first driving member 300 to slide along the supporting member 400, so as to retract into the annular accommodating cavity or extend out of the annular accommodating cavity. Alternatively, the flexible shade 200 may be fixedly disposed relative to the housing 100, and the flexible shade 200 is slidably disposed with the support 400. The first driving member 300 is connected to the supporting member 400, so that the supporting member 400 can be driven by the first driving member 300 to move, thereby moving the flexible light shielding member 200 relative to the supporting member 400, and further retracting the flexible light shielding member 200 into the annular accommodating cavity or extending the flexible light shielding member 200 out of the annular accommodating cavity.
In an alternative embodiment, the supporting member 400 may be a ring-shaped bracket disposed in the light-passing channel, and the flexible light-shielding member 200 is deformed by the compression between the supporting member 400 and the flexible light-shielding member 200. The supporting member 400 may be coaxially disposed with the light passing hole of the flexible light-shielding member 200, so that the deformation amount around the light passing hole is the same, and the roundness of the light passing hole may be further improved under the condition that the aperture of the light passing hole is increased.
It should be noted that the aperture device described in the embodiment of the present invention is mainly used for adjusting the light flux of the light-passing channel in the optical apparatus. In the case where the diaphragm apparatus described in the present application is used for an optical apparatus, a component in the optical apparatus may be used as the support 400. Referring to fig. 1 to 6, in the case where the diaphragm apparatus is used for a camera module, a lens in the camera module may be used as the support 400. Specifically, the lens may be disposed in the light-passing channel, an annular accommodating cavity may be disposed between the lens and the housing 100, and a diameter of the lens is greater than a diameter of the light-passing hole. In the process of switching the flexible light shielding member 200 from the first state to the second state, the flexible light shielding member 200 is retracted into the annular accommodating cavity along the lens. In the process of switching the flexible light-shielding member 200 from the second state to the first state, the flexible light-shielding member 200 extends out of the annular accommodating cavity along the lens. In this scheme, the camera lens not only can be used for the formation of image, can also be used to support flexible light-shielding piece 200, can further reduce the volume of the module of making a video recording. In addition, the flexible light-shielding member 200 can be sleeved or wrapped on the end of the lens to protect the lens.
Referring to fig. 3-6, the flexible shade 200 may include a first section 210 and a second section 220. The first end of the first segment 210 may be connected to the housing 100 or the support 400. The second end of the first section 210 may be connected to the first end of the second section 220, and the second section 220 may be folded over with respect to the first section 210. The second end of the second section 220 is slidably engaged with the housing 100, and the first driving member 300 can drive the second end of the second section 220 to move along the housing 100.
Referring to fig. 3, the second section 220 may be folded with respect to the first section 210 such that the inner wall of the second section 220 is connected to the outer wall of the first section 210 and the outer wall of the second section 220 is connected to the inner wall of the first section 210. The first driving member 300 can drive the second end of the second segment 220 to move along the housing 100. the first driving member 300 can drive the second end of the second segment 220 to move along the housing 100 into the annular accommodating space or move along the housing 100 out of the annular accommodating space.
In the above embodiment, in the process that the first driving element 300 drives the second end of the second segment 220 to move outward from the annular accommodating space, the length of the flexible light shielding member 200 extending out of the annular accommodating space gradually increases, and then the aperture of the light through hole formed by the flexible light shielding member 200 gradually decreases. In the process that the second end of the second segment 220 is driven by the first driving member 300 to move into the annular accommodating space, the length of the flexible light shielding member 200 extending out of the annular accommodating space is gradually reduced, and then the aperture of the light through hole formed by the flexible light shielding member 200 is gradually increased. In this scheme, can reduce the flexible light-shielding piece 200 and extend or to the resistance that the flexible light-shielding piece 200 received of the in-process that contracts in the annular accommodation space to the position of turning over that utilizes flexible light-shielding piece 200 forms the clear aperture, can avoid clear aperture department flexible light-shielding piece 200 to appear the fold, improves the circularity in the aperture of clear aperture. It should be noted that the fold-over region of the flexible shade 200, i.e., where the first section 210 and the second section 220 are joined.
In an alternative embodiment, the second end of the second section 220 may be provided with an annular lip, and the second section 220 may be slip-fit to the housing 100 via the annular lip. The annular lip portion may be made of a hard material, and the annular lip portion may support the second end of the second segment 220 to maintain an annular shape. Optionally, the inner diameter of the annular lip portion may be greater than the outer diameter of the first section 210 sleeved on the supporting member 400, that is, the second section 220 is folded and has a gap with the first section 210, so as to avoid the mutual friction between the second section 220 and the first section 210, reduce the resistance received in the deformation process of the flexible light-shielding member 200, improve the uniformity of the deformation around the light-transmitting hole, and facilitate the maintenance of the roundness of the light-transmitting hole in the deformation process of the flexible light-shielding member 200.
Referring to fig. 9 and 10, the supporting member 400 may be further disposed on an inner wall of the light passing channel. In particular, the supporting member 400 may protrude from the inner wall of the light passing channel. The support 400 may be provided with a guide surface 410, and the guide surface 410 corresponds to an aperture smaller than the outer diameter of the flexible light shield 200. In the process of switching the flexible light shielding member 200 from the first state to the second state, the flexible light shielding member 200 slides to a side close to the supporting member 400 along the guiding surface 410, so that the flexible light shielding member 200 deforms toward the inner side of the light-passing hole under the extrusion of the supporting member 400, and the aperture of the light-passing hole is reduced. In the process that the flexible light-shielding member 200 is switched from the second state to the first state, the flexible light-shielding member 200 slides along the guide surface 410 to the side far away from the supporting member 400, so that the flexible light-shielding member 200 can restore the deformation under the action of self elasticity, and the aperture of the light-passing hole is enlarged. In this scheme, support member 400 is through supporting the flexible light-shielding member 200 outside for flexible light-shielding member 200 can extrude each other with support member 400, and then makes flexible light-shielding member 200 can follow the inboard deformation of guide surface 410 to logical unthreaded hole, and then makes the aperture of logical unthreaded hole reduce.
The supporting member 400 may be a ring-shaped protrusion protruding from the inner wall of the light-transmitting channel, so that the periphery of the light-transmitting hole of the flexible light-shielding member 200 can be uniformly extruded, and further the deformation of the light-transmitting hole of the flexible light-shielding member 200 can be more uniform, which is beneficial to maintaining the roundness of the light-transmitting hole. The first end of the guide surface 410 is located at a side close to the flexible shade 200, and the second end of the guide surface 410 is located at a side far from the flexible shade 200. The aperture of the guide surface 410 decreases from the first end of the guide surface 410 to the second end of the guide surface 410. The aperture corresponding to the first end of the guide surface 410 may be equal to the aperture corresponding to the light-passing channel, so that the end of the flexible light-shielding member 200 close to the guide surface 410 may smoothly move to the guide surface 410 along the inner wall of the light-passing channel. The guide surface 410 may be an arc-shaped surface.
The support 400 may be a unitary structure with the housing 100. Optionally, the support 400 and the housing 100 may be integrally formed through an injection molding process or a cutting process, so as to improve the stability of the connection between the support 400 and the housing 100.
The support 400 is connected to the housing 100 in a variety of ways, for example: threaded, bonded, snapped, etc. Therefore, the embodiment of the present application does not limit the specific connection manner of the support 400 and the housing 100.
The first driving member 300 may be connected to the housing 100 and the flexible light-shielding member 200, and the first driving member 300 may drive the flexible light-shielding member 200 to extend or retract along one end of the light-passing channel. The first driving member 300 can be of various types, for example, a screw and a screw sleeve can be used for matching, a driving motor drives the screw and the screw sleeve to rotate relatively, and then the screw and the screw sleeve drive the flexible light shielding member 200 to move along the housing 100, and the rack and pinion assembly can also drive the flexible light shielding member 200 to move along the housing 100. Thus, the present application does not limit the specific kind of the first driver 300.
The first driving member 300 may include a driving coil 310 and a magnetic member 320, one of the driving coil 310 and the magnetic member 320 is disposed on the housing 100, and the other is disposed on the flexible light-shielding member 200. In this embodiment, the current direction in the driving coil 310 may be controlled to generate an attractive or repulsive force between the driving coil 310 and the magnetic member 320, so as to drive the flexible light shielding member 200 to move relative to the housing 100. The magnetic member 320 may be a magnet, an energized coil.
Alternatively, the driving coil 310 may be disposed on the housing 100, the magnetic member 320 may be disposed on the flexible light-shielding member 200, and the magnetic member 320 is a permanent magnet. In this embodiment, the magnetic member 320 is provided as a permanent magnet, i.e., no power is required to energize the magnetic member 320. Further, the magnetic part 320 is arranged on the flexible light-shielding part 200, so that the wiring difficulty of the diaphragm device can be reduced, and the diaphragm device can be conveniently manufactured. In an alternative embodiment, the magnetic member 320 may be an annular permanent magnet, such that the magnetic member 320 may serve as an annular lip portion of the second end of the second section 220.
Based on the diaphragm device disclosed by the embodiment, the embodiment of the invention also discloses a camera module. The camera module comprises the diaphragm device in any one of the embodiments.
Referring to fig. 1 to 6, the camera module may further include a lens. The camera lens can be set up with the logical light passageway of diaphragm device is relative, perhaps, the camera lens can set up in leading to the light passageway to adjust the module diaphragm size of making a video recording through the diaphragm device. Alternatively, a lens may be used as the support 400 in the diaphragm device. Specifically, an annular accommodating cavity may be disposed between the lens and the housing 100, and a diameter of the lens is greater than a diameter of the light passing hole. In the process of switching the flexible light shielding member 200 from the first state to the second state, the flexible light shielding member 200 is retracted into the annular accommodating cavity along the lens. In the process of switching the flexible light-shielding member 200 from the second state to the first state, the flexible light-shielding member 200 extends out of the annular accommodating cavity along the lens. This scheme can further simplify the structure of the module of making a video recording, reduces the volume of the module of making a video recording, reduces the preparation degree of difficulty of the module of making a video recording, makes the module of making a video recording more be applicable to batch production. In addition, in this embodiment, the lens may be used not only for imaging but also for supporting the flexible light-shielding member 200. In addition, the flexible shading part 200 can be sleeved or wrapped on the end part of the lens to achieve the purpose of protecting the lens.
The camera lens can be set to be cylindric to make the camera lens can support the deformation volume that leads to in the flexible light-shielding piece 200 unthreaded hole all around and can keep unanimous, and then improve the circularity of camera module diaphragm.
In another embodiment of the disclosure, the camera module further includes a lens and a supporting member 400, and the lens is disposed on the supporting member 400. Specifically, the lens can be movably arranged on the supporting member 400, so that the camera module is prevented from driving the flexible light shielding member 200 in the focusing process, and the adjustment of the focal length and the light transmission amount can be independently realized.
Referring to fig. 1 to 6, the image capturing module may further include a second driving member 500, the second driving member 500 is disposed on the housing 100, the second driving member 500 is connected to the lens, and the second driving member 500 can drive the lens to move along an axial direction of the lens. The second driving member 500 may be a focus motor, so that the second driving member 500 drives the lens to move to focus the camera module.
The camera lens sets up in logical light passageway, and under the camera lens was as the circumstances of support piece 400, second driving piece 500 can also drive the camera lens, utilizes the camera lens to extrude each other with flexible light-shielding piece 200 and realizes the regulation of logical unthreaded hole size in the flexible light-shielding piece 200, and second driving piece 500 not only can be used for adjusting the module focusing of making a video recording promptly, can also be used for the regulation of the module aperture size of making a video recording.
Referring to fig. 3 and 4, the camera module may further include a supporting part 600, the supporting part 600 is disposed at the first end of the supporting member 400, and the supporting part 600 is provided with an arc-shaped supporting surface for supporting the flexible light-shielding member 200. The arc-shaped supporting surface can prevent the flexible shading member 200 from having a large local pressure, and protect the flexible shading member 200.
Further, referring to fig. 3 and 2, the supporting portion 600 may be an annular protrusion protruding from the sidewall of the supporting member 400, so as to reduce the contact area between the flexible light-shielding member 200 and the sidewall of the supporting member 400, and reduce the friction between the supporting member 400 and the flexible light-shielding member 200. Optionally, the arc-shaped supporting surface is provided with a slip layer 610 to reduce the friction between the supporting part 600 and the flexible light shield 200 by the slip layer 610. The slip layer 610 may be a PET layer.
Based on the camera module disclosed by the embodiment of the application, the invention further discloses electronic equipment. The electronic equipment comprises the camera module in any one of the embodiments.
The electronic device disclosed in the embodiment of the application can be a mobile phone, a watch, a vehicle-mounted display, a tablet computer, an electronic book reader, a medical apparatus and the like, and the embodiment of the application does not limit the specific type of the electronic device.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.
Claims (13)
1. A diaphragm device is characterized by comprising a shell, a flexible shading piece, a first driving piece and a supporting piece,
the shell is provided with a light passing channel, and the first driving piece and the flexible light shading piece are arranged on the shell; the flexible light shading piece is made of elastomer materials and is provided with a light through hole, and the light through hole is opposite to the light through channel;
the first driving piece drives the flexible shading piece to switch between a first state and a second state;
under the condition that the flexible shading piece is in the first state, the flexible shading piece at least partially shades the light passing channel, and the aperture of a light passing hole of the flexible shading piece is a first aperture;
under the condition that the flexible shading piece is in the second state, the aperture of a light through hole of the flexible shading piece is a second aperture, and the second aperture is larger than the first aperture;
the support piece is arranged in the light-transmitting channel, an annular accommodating cavity is formed between the support piece and the shell, and the diameter of the support piece is larger than that of the light-transmitting hole;
in the process that the flexible shading piece is switched from the first state to the second state, the flexible shading piece shrinks along the supporting piece to the annular accommodating cavity;
in the process of switching the flexible shading piece from the second state to the first state, the flexible shading piece extends out of the annular accommodating cavity along the supporting piece.
2. An aperture arrangement according to claim 1, characterised in that the flexible light shield comprises a first section and a second section,
the first end of the first section is connected with the shell or the supporting piece, the second end of the first section is connected with the first end of the second section, and the second section is folded relative to the first section;
the second end of the second section is in sliding fit with the housing, and the first driving member can drive the second end of the second section to move along the housing.
3. The diaphragm device according to claim 1, wherein the supporting member is disposed on an inner wall of the light-passing channel, and the supporting member protrudes from the inner wall of the light-passing channel, and the supporting member has a guide surface, and an aperture corresponding to the guide surface is smaller than an outer diameter of the flexible light-shielding member;
in the process of switching the flexible shading member from the first state to the second state, the flexible shading member slides along a guide surface to a side close to the support member;
in the process of switching the flexible shading member from the second state to the first state, the flexible shading member slides along a guide surface to a side far away from the support member.
4. An aperture arrangement according to any one of claims 1 to 3, wherein the first actuating member is connected to the housing and the flexible light-blocking member, and the first actuating member is adapted to drive the flexible light-blocking member to extend or retract along one end of the light-passing channel.
5. An aperture device according to claim 4, characterized in that the first driving member includes a driving coil and a magnetic member,
one of the driving coil and the magnetic member is disposed on the housing, and the other is disposed on the flexible shading member.
6. An aperture arrangement according to claim 5, characterised in that the magnetic member is a magnet.
7. A camera module, characterized in that it comprises a diaphragm device according to any one of claims 1 to 6.
8. The camera module of claim 7, further comprising a lens disposed in the light-transmitting channel.
9. The camera module of claim 8, further comprising a second driving member disposed in the housing, the second driving member being connected to the lens, the second driving member being capable of driving the lens to move along an axial direction of the lens.
10. The camera module of claim 9, wherein the lens serves as the support member, and further comprising a support portion disposed at a first end of the lens, the support portion being provided with an arc-shaped support surface for supporting the flexible light shield.
11. The camera module of claim 10, wherein the support portion is an annular protrusion protruding from the sidewall of the lens barrel.
12. The camera module of claim 10, wherein the arcuate support surface is provided with a slip layer.
13. An electronic device comprising the camera module of any one of claims 7-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110477069.3A CN113204154B (en) | 2021-04-29 | 2021-04-29 | Diaphragm device, camera module and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110477069.3A CN113204154B (en) | 2021-04-29 | 2021-04-29 | Diaphragm device, camera module and electronic equipment |
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| CN113204154A CN113204154A (en) | 2021-08-03 |
| CN113204154B true CN113204154B (en) | 2022-09-09 |
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| CN202110477069.3A Active CN113204154B (en) | 2021-04-29 | 2021-04-29 | Diaphragm device, camera module and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113885270A (en) * | 2021-11-23 | 2022-01-04 | 维沃移动通信有限公司 | Aperture assembly, camera module and electronic equipment |
| CN114615479B (en) * | 2022-03-11 | 2024-05-28 | 深圳市火乐科技发展有限公司 | Diaphragm device, image adjusting method and projection equipment |
| CN114615414A (en) * | 2022-03-14 | 2022-06-10 | 维沃移动通信有限公司 | Camera module and electronic equipment |
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| JPH09160089A (en) * | 1995-12-12 | 1997-06-20 | Toshiba Corp | Diaphragm device for camera |
| JP2009069575A (en) * | 2007-09-14 | 2009-04-02 | Hoya Corp | Variable diaphragm device for endoscope |
| CN108061994A (en) * | 2017-12-27 | 2018-05-22 | 哈尔滨学院 | A kind of miniature aperture drawing and pulling type adjuster for mobile phone |
| CN208834063U (en) * | 2018-11-08 | 2019-05-07 | 山东理工大学 | A kind of adjustable aperture device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08313965A (en) * | 1995-05-16 | 1996-11-29 | Toshiba Corp | Diaphragm device for micro camera |
| CN2335165Y (en) * | 1998-01-14 | 1999-08-25 | 力捷电脑股份有限公司 | Switching diaphragm mechanism |
| KR20080078681A (en) * | 2005-12-20 | 2008-08-27 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Camera diaphragm and lens positioning system employing a dielectrical polymer actuator |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09160089A (en) * | 1995-12-12 | 1997-06-20 | Toshiba Corp | Diaphragm device for camera |
| JP2009069575A (en) * | 2007-09-14 | 2009-04-02 | Hoya Corp | Variable diaphragm device for endoscope |
| CN108061994A (en) * | 2017-12-27 | 2018-05-22 | 哈尔滨学院 | A kind of miniature aperture drawing and pulling type adjuster for mobile phone |
| CN208834063U (en) * | 2018-11-08 | 2019-05-07 | 山东理工大学 | A kind of adjustable aperture device |
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| CN113204154A (en) | 2021-08-03 |
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