CN115225821A - Imaging device and electronic apparatus - Google Patents
Imaging device and electronic apparatus Download PDFInfo
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- CN115225821A CN115225821A CN202210918237.2A CN202210918237A CN115225821A CN 115225821 A CN115225821 A CN 115225821A CN 202210918237 A CN202210918237 A CN 202210918237A CN 115225821 A CN115225821 A CN 115225821A
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- 238000003384 imaging method Methods 0.000 title claims description 7
- 230000003287 optical effect Effects 0.000 claims abstract description 38
- 238000006073 displacement reaction Methods 0.000 claims abstract description 18
- 230000009471 action Effects 0.000 claims abstract description 7
- 241000237983 Trochidae Species 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 11
- 230000008859 change Effects 0.000 description 4
- 238000002310 reflectometry Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application provides a camera device and electronic equipment relates to camera device technical field, and camera device includes: a housing; the driving assembly is arranged on the shell; the lens assembly is connected with the driving assembly; the optical resonance component is arranged on the shell and the lens component and used for detecting the displacement of the lens component, and the driving component carries out focusing action according to the displacement information of the optical resonance component to the lens component.
Description
Technical Field
The application belongs to the technical field of camera devices, and particularly relates to a camera device and electronic equipment.
Background
In the related art, the closed-loop control of the optical anti-shake motor needs to add a hall element inside the motor, and the hall element is an element specially used for sensing the position of the magnet, so that the closed-loop control is limited by the hall element, the optical anti-shake motor must be designed into a moving magnet form, that is, when the anti-shake motor is in an anti-shake state, the inner magnet is moving, and the structure is very easy to form a magnetic interference phenomenon.
Disclosure of Invention
The present application aims to provide an imaging device and an electronic apparatus, which solve or improve one of the technical problems of the imaging device in the related art that electromagnetic interference is caused by the arrangement of a hall element.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, the present application provides an image pickup apparatus comprising:
a housing;
the driving assembly is arranged on the shell;
the lens assembly is connected with the driving assembly;
the optical resonance component is arranged on the shell and the lens component and used for detecting the displacement of the lens component, and the driving component carries out focusing action according to the displacement information of the optical resonance component to the lens component.
In a second aspect, the present application provides an electronic device, comprising:
the image pickup apparatus as provided in the first aspect.
In the embodiment of the application, the camera device comprises a shell, a driving component, a lens component and an optical resonance component, wherein the lens component is installed on the driving component, the driving component is installed on the shell, and then the driving component can drive the lens component to move, the optical resonance component is arranged on the lens component and the shell, that is, one part of the optical resonance component is installed on the shell, and the other part of the optical resonance component is installed on the lens component, wherein the lens component and the shell are relatively movable, therefore, when the lens component moves, a certain position change occurs between the lens component and the shell, and then the state of the optical resonance component changes, so that the displacement state of the lens component can be detected, the driving component performs focusing action on the lens component according to the displacement information of the lens component detected by the optical resonance component, and plays a role in anti-shake, the shooting effect of the camera device is improved, and then the displacement of the lens component is detected by the optical resonance component, without setting a magnet, magnetic interference is reduced, and the production cost is reduced.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 illustrates a schematic diagram of an image pickup apparatus provided in an embodiment of the present application;
fig. 2 is a schematic diagram illustrating an optical path of an optical resonance component in an image pickup apparatus according to an embodiment of the present application;
fig. 3 is a schematic diagram of an electronic device according to an embodiment of the present application.
Fig. 1 to 3 mark:
100 camera device, 110 casing, 112 base, 114 top case, 116 carrier plate, 120 driving assembly, 122 magnetic component, 124 coil, 126 first elastic component, 128 second elastic component, 130 lens assembly, 132 lens, 134 carrier, 140 optical resonance assembly, 142 emission structure, 144 light source, 146 collimating lens, 148 first light transmission component, 150 receiving structure, 152 second light transmission component, 154 converging lens, 156 detector, 158 first reflecting surface, 160 second reflecting surface, 170 optical filter, 180 photosensitive chip, 200 light ray, 300 electronic equipment.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting 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 features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specified. 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.
In the description of the present application, it is to be understood that the terms "upper", "inner", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The image pickup apparatus 100 and the electronic device 300 according to the embodiment of the present application are described below with reference to fig. 1 to 3.
As shown in fig. 1, the present application provides an image pickup apparatus 100 including: a housing 110; a driving assembly 120 disposed on the housing 110; a lens assembly 130 connected to the driving assembly 120; the optical resonance assembly 140 is disposed on the housing 110 and the lens assembly 130, and is used for detecting the displacement of the lens assembly 130, and the driving assembly 120 performs a focusing operation according to the displacement information of the lens assembly 130 by the optical resonance assembly 140.
In the embodiment of the present application, the camera device 100 includes a housing 110, a driving assembly 120, a lens assembly 130, and an optical resonance assembly 140, the lens assembly 130 is mounted on the driving assembly 120, the driving assembly 120 is mounted on the housing 110, and the driving assembly 120 can drive the lens assembly 130 to move, the optical resonance assembly 140 is disposed on the lens assembly 130 and the housing 110, that is, a portion of the optical resonance assembly 140 is mounted on the housing 110, and a portion of the optical resonance assembly is mounted on the lens assembly 130, wherein the lens assembly 130 and the housing 110 are relatively movable, so that when the lens assembly 130 is displaced, a certain position change occurs between the lens assembly 130 and the housing 110, and a state of the optical resonance assembly 140 changes, so that a displacement state of the lens assembly 130 can be detected, the driving assembly 120 performs a focusing operation on the lens assembly 130 according to displacement information of the lens assembly 130 detected by the optical resonance assembly 140, so as to improve a shooting effect of the camera device 100, and further, the displacement of the lens assembly 130 is detected by the optical resonance assembly 140, and no magnet is required, magnetic interference is reduced, and production cost is reduced.
Specifically, the optical resonance assembly 140 employs a fabry-perot cavity detection assembly.
The shake of the lens assembly 130 is a displacement of the lens assembly 130, and the driving assembly 120 detects the displacement of the lens assembly 130 through the optical resonance assembly 140, so as to perform corresponding focusing compensation, and form an anti-shake effect under continuous closed-loop control.
Moreover, the feedback speed of the light 200 is fast, and the effect lens 132 improves the focusing effect of the image capturing apparatus 100.
As shown in fig. 1 and 2, as one possible embodiment, the optical resonance component 140 includes: an emitting structure 142 for emitting light rays 200; the receiving structure 150 is used for receiving the light 200, and the emitting structure 142 and the receiving structure 150 are oppositely arranged on the lens assembly 130 and the housing 110.
Specifically, the optical resonance component 140 includes an emitting structure 142 and a receiving structure 150, the emitting structure 142 can emit the light 200, the receiving structure 150 can receive the light 200, and the emitting structure 142 and the receiving structure 150 are respectively disposed on the housing 110 and the lens component 130, therefore, when the lens component 130 is displaced, the lens component 130 moves relative to the housing 110, and then the emitting structure 142 moves relative to the receiving structure 150, thereby affecting the path of the light 200, and then the receiving structure 150 can determine the displacement direction and amplitude of the lens component 130 according to the change of the position of the received light 200, and so on, thereby performing real-time feedback, and facilitating to implement closed-loop control, and the driving component 120 determines the focusing action according to the feedback of the receiving structure 150, and achieving the anti-shake effect of the image capturing device 100.
The transmitting structure 142 is disposed on the lens assembly 130, and the receiving structure 150 is disposed on the housing 110, so that signal transmission of the receiving structure 150 is facilitated, and wiring is facilitated.
As shown in fig. 1, as a possible implementation, at least a portion of the emitting structure 142 is embedded within one of the lens assembly 130 and the housing 110; at least a portion of the receiving structure 150 is embedded within the other of the lens assembly 130 and the housing 110.
Specifically, the housing 110 and the lens assembly 130 are both provided with mounting holes, and at least part of the emitting structure 142 and at least part of the receiving structure 150 are disposed in the mounting holes, so as to reduce the occupied space, and further, a certain light-blocking effect can be achieved, the interference of the external light 200 to the light 200 between the emitting structure 142 and the receiving structure 150 is reduced, and the detection precision of the optical resonance assembly 140 is improved.
As shown in fig. 1 and 2, as one possible implementation, the transmitting structure 142 includes: a light source 144; a collimating lens 146 disposed at the light emitting end of the light source 144; the first light-transmitting member 148 is disposed on a side of the collimating lens 146 facing away from the light source 144, and the light 200 emitted from the light source 144 passes through the collimating lens 146 and the first light-transmitting member 148 and is irradiated onto the receiving structure 150.
Specifically, the emitting structure 142 includes a light source 144, a collimating lens 146 and a first light-transmitting member 148, the collimating lens 146 is disposed between the light source 144 and the first light-transmitting member 148, the light source 144 is capable of generating light 200, the light 200 passes through the collimating lens 146 to form a parallel light beam, and the parallel light beam is irradiated onto the first light-transmitting member 148 so as to irradiate towards the receiving structure 150, wherein the first light-transmitting member 148 can be fixed on the lens assembly 130 by an adhesive.
The light source 144 and the collimating lens 146 may be embedded in the lens assembly 130 or the housing 110, among other things.
Further, the light source 144 is an infrared light source 144 or an ultraviolet light source 144, so that the influence on the image formation of the image pickup apparatus 100 is reduced.
Moreover, the first light-transmitting member 148 is made of glass or plastic, and is coated with high reflectivity on the side facing the receiving structure 150 to form a first reflecting surface 158, wherein the reflectivity is greater than 90%, and the transmissivity is lower than 10%.
And, the first light-transmitting member 148 has a wedge angle, that is, two sides of the first light-transmitting member 148 are not parallel to form a certain included angle, thereby reducing interference of reflected light generated on a surface without the first light-transmitting member 148 being coated.
As shown in fig. 1 and 2, as one possible implementation, the receiving structure 150 includes: a second light-transmitting member 152; a condensing lens 154 disposed at one side of the second light-transmitting member 152; and the detector 156 is arranged on the side of the converging lens 154, which faces away from the second light-transmitting member 152, and the detector 156 receives the light 200 emitted by the emitting structure 142 through the second light-transmitting member 152 and the converging lens 154. Wherein the second light-transmitting member 152 may be fixed to the case 110 by an adhesive.
Specifically, the receiving structure 150 includes a second light-transmitting member 152, a converging lens 154 and a detector 156, the converging lens 154 is located between the second light-transmitting member 152 and the detector 156, and further the light 200 generated by the emitting structure 142 passes through the second light-transmitting member 152 and irradiates on the converging lens 154, and the converging lens 154 converges the light 200 and irradiates on the detector 156, so that the detector 156 can determine the displacement of the lens assembly 130 according to the state of the light 200, thereby providing a basis for the focusing action of the driving assembly 120.
Wherein the focusing lens 154 and the detector 156 may be embedded in the lens assembly 130 or the housing 110.
The second light-transmitting member 152 is made of glass or plastic, and is coated with a high-reflectivity film on a side facing the emitting structure 142 to form a second reflecting surface 160, wherein the reflectivity is greater than 90% and the transmissivity is lower than 10%. Wherein the first and second light-transmitting members 148, 152 are substantially parallel on opposite sides. Wherein the first and second reflective surfaces 158 and 160 are oppositely disposed.
And, the second light-transmitting member 152 has a wedge angle, thereby reducing interference of reflected light generated from a surface without the second light-transmitting member 152 being coated. That is, the two sides of the second light-transmitting member 152 are not parallel and form an included angle.
Specifically, as shown in fig. 2, the light beam 200 generated by the light source 144 is refracted by the collimating lens 146 to form a parallel light beam, the parallel light beam is emitted through the first light-transmitting member 148 and irradiated onto the second light-transmitting member 152, and the light beam 200 is continuously reflected by the first light-transmitting member 148 and the second light-transmitting member 152, and multiple light beams 200 are transmitted and transmitted multiple times are formed while being reflected multiple times, and the light beams 200 passing through the second light-transmitting member 152 and interfering with each other form a circular interference fringe on the detector 156 through the converging lens 154, wherein the interference fringe formed by the light beams 200 has a sharper definition, and forms an equal-inclination interference circular fringe, and when the distance h between the first light-transmitting member 148 and the second light-transmitting member 152 changes, the interference fringe on the detector 156 changes, so that the signal change of the interference fringe can be analyzed, and the displacement of the lens assembly 130 can be determined, thereby serving as a basis of the focusing operation of the driving assembly 120, and realizing the anti-shake control of the camera 100.
That is, when the lens assembly 130 is not displaced, the distance h between the first light-transmitting member 148 and the second light-transmitting member 152 is a fixed value, and after the lens assembly 130 is displaced, the distance h between the first light-transmitting member 148 and the second light-transmitting member 152 becomes smaller or larger, so as to affect the state of the interference fringes, and after analyzing the state of the interference fringes, the driving assembly 120 is provided with a basis for action, and the radially affected focusing compensation is performed, so that the fast auto-focusing of the image pickup apparatus 100 is realized, and the anti-shake function of the image pickup apparatus 100 is realized.
As shown in fig. 1, as one possible embodiment, the driving assembly 120 includes: a magnetic member 122 provided in the housing 110; the coil 124 is connected to the lens assembly 130 and is located inside the magnetic member 122.
Specifically, the driving assembly 120 includes a magnetic member 122 and a coil 124, the coil 124 is connected to the lens assembly 130, and the magnetic member 122 is connected to the housing 110, so that when the coil 124 is energized, a magnetic force is generated between the magnetic member 122 and the coil 124, so that the lens assembly 130 is driven by the coil 124 to move, thereby achieving the zooming effect and achieving the anti-shake purpose.
The number of the magnetic members 122 is plural, and the plural magnetic members 122 are arranged around the coil 124.
The emitting structure 142 is powered by the coil 124, that is, the light source 144 is electrically connected to the coil 124.
As shown in fig. 1, as a possible implementation, the driving assembly 120 further includes: a first elastic member 126 disposed on the housing 110 and connected to the lens assembly 110; and a second elastic member 128 disposed on the housing 110 and connected to the lens assembly 110.
Specifically, the driving assembly 120 further includes a first elastic member 126 and a second elastic member 128, which are disposed on the housing 110 and connected to the lens assembly 110, and the first elastic member 126 and the second elastic member 128 elastically limit the lens assembly 130, so that the lens assembly 130 can move within a certain range, and a dynamic anti-shake effect and a zooming effect can be achieved.
The first elastic member 126 and the second elastic member 128 sandwich the magnetic member 122 and the lens assembly 130, and since the coil 124 is disposed on the lens assembly 130, the coil 124 is also located between the first elastic member 126 and the second elastic member 128.
As shown in fig. 1, as one possible implementation, the lens assembly 130 includes: a lens 132; carrier 134, lens 132 are disposed on carrier 134, carrier 134 is connected to drive assembly 120, and optically resonant assembly 140 is disposed on housing 110 and carrier 134.
Specifically, the lens assembly 130 includes a carrier 134 and a lens 132 disposed on the carrier 134, wherein the driving assembly 120 is disposed in connection with the carrier 134, the transmitting structure 142 or the receiving structure 150 is disposed on the carrier 134, and at least a portion of the transmitting structure 142 or at least a portion of the receiving structure 150 is embedded in the carrier 134, so that the lens 132 is not damaged, the integrity of the lens 132 is improved, and the imaging effect of the image capturing apparatus 100 is improved.
Wherein the first elastic member 126 and the second elastic member 128 are located at both sides of the magnetic member 122 and the carrier 134.
As shown in fig. 1, as one possible embodiment, the housing 110 includes: a base body 112; a top case 114 disposed on the base 112, and a driving assembly 120 mounted on the top case 114; the carrier 116 is disposed on the base 112 or the top case 114, and the optical resonator device 140 is disposed on the carrier 116 and the driving device 120.
Specifically, the housing 110 includes a base body 112, a top shell 114 and a carrier plate 116, the top shell 114 is disposed on the base body 112, and the carrier plate 116 is disposed on the top shell 114 or the base body 112, wherein the carrier plate 116 and the top shell 114 may be a unitary structure, or the carrier plate 116 and the base body 112 may be a unitary structure.
Also, the emitting structure 142 or the receiving structure 150 is disposed on the carrier plate 116, and at least a portion of the emitting structure 142 or at least a portion of the receiving structure 150 is embedded in the carrier 134.
Further, one of the emitting structure 142 and the receiving structure 150 is disposed on the carrier 134 and the other is disposed on the carrier plate 116 such that the emitting structure 142 and the receiving structure 150 are opposite, i.e., the first light-transmitting member 148 and the second light-transmitting member 152 are opposite.
The optical filter 170 and the photo sensor chip 180 are disposed on the base 112, so that the carrier 116 is disposed on the base 112, and the receiving structure 150 is disposed on the carrier 116, which facilitates signal output of the receiving structure 150. Moreover, the emitting structure 142 generates the light 200 in the infrared band or the ultraviolet band, which can be filtered by the filter 170, so as to reduce the influence on the imaging. Wherein, the receiving structure 150 outputs signals through the circuit of the light sensing chip 180.
Specifically, the transmitting structure 142 and the receiving structure 150 are disposed along the direction from the top case 114 to the base 112.
As shown in fig. 3, an electronic device 300 according to an embodiment of the present application includes: the image capturing apparatus 100 according to any one of the above embodiments.
The electronic device 300 provided by the present application includes the image capturing apparatus 100 according to any of the above embodiments, so that all the advantages of the image capturing apparatus 100 according to any of the above embodiments are provided, and are not described herein.
Specifically, the electronic device 300 may be a mobile phone, a tablet computer, a notebook computer, a wearable device, or a smart camera.
Reference throughout this specification to "one embodiment," "a particular embodiment," or similar language means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An image pickup apparatus, comprising:
a housing;
the driving assembly is arranged on the shell;
the lens assembly is connected with the driving assembly;
the optical resonance component is arranged on the shell and the lens component and used for detecting the position of the lens component, and the driving component carries out focusing action according to the displacement information of the lens component by the optical resonance component.
2. The image capture device of claim 1, wherein the optical resonance assembly comprises:
an emitting structure for emitting light;
the receiving structure is used for receiving light rays, and the transmitting structure and the receiving structure are oppositely arranged on the lens assembly and the shell.
3. The image pickup apparatus according to claim 2,
at least a portion of the emitting structure is embedded within one of the lens assembly and the housing;
at least a portion of the receiving structure is embedded within the other of the lens assembly and the housing.
4. The image capture device of claim 2, wherein the emission structure comprises:
a light source;
the collimating lens is arranged at the light emitting end of the light source;
the first light-transmitting piece is arranged on one side, away from the light source, of the collimating lens, and light emitted by the light source passes through the collimating lens and the first light-transmitting piece and irradiates on the receiving structure.
5. The image pickup apparatus according to claim 2, wherein the receiving structure includes:
a second light transmissive member;
the converging lens is arranged on one side of the second light-transmitting piece;
the detector is arranged on one side, deviating from the second light-transmitting piece, of the convergent lens, and the detector receives light rays emitted by the emitting structure through the second light-transmitting piece and the convergent lens.
6. The image pickup apparatus according to any one of claims 1 to 5, wherein the drive assembly includes:
the magnetic piece is arranged on the shell;
and the coil is connected with the lens assembly and is positioned on the inner side of the magnetic part.
7. The image pickup apparatus according to claim 6, wherein said drive assembly further comprises:
the first elastic piece is arranged on the shell and connected with the lens component;
and the second elastic piece is arranged on the shell and connected with the lens component.
8. The imaging device according to any one of claims 1 to 5, wherein the lens assembly includes:
a lens;
the lens is arranged on the carrier, the carrier is connected with the driving assembly, and the optical resonance assembly is arranged on the shell and the carrier.
9. The image pickup apparatus according to any one of claims 1 to 5, wherein the housing includes:
a base body;
the top shell is arranged on the seat body, and the driving assembly is arranged on the top shell;
the carrier plate is arranged on the base body or the top shell, and the optical resonance component is arranged on the carrier plate and the driving component.
10. An electronic device, comprising:
the image pickup apparatus according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210918237.2A CN115225821A (en) | 2022-08-01 | 2022-08-01 | Imaging device and electronic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210918237.2A CN115225821A (en) | 2022-08-01 | 2022-08-01 | Imaging device and electronic apparatus |
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|---|---|
| CN115225821A true CN115225821A (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210918237.2A Pending CN115225821A (en) | 2022-08-01 | 2022-08-01 | Imaging device and electronic apparatus |
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| CN (1) | CN115225821A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018077140A (en) * | 2016-11-09 | 2018-05-17 | 株式会社ミツトヨ | Phase shift interferometer |
| CN110132126A (en) * | 2019-05-21 | 2019-08-16 | 季华实验室 | Based on the displacement measuring device and method from mixing holographic interference |
| CN111473846A (en) * | 2020-04-13 | 2020-07-31 | 西安柯莱特信息科技有限公司 | Weighing device and system based on Fabry-Perot interference |
| CN112616005A (en) * | 2020-12-30 | 2021-04-06 | 维沃移动通信有限公司 | Camera module and electronic equipment |
-
2022
- 2022-08-01 CN CN202210918237.2A patent/CN115225821A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018077140A (en) * | 2016-11-09 | 2018-05-17 | 株式会社ミツトヨ | Phase shift interferometer |
| CN110132126A (en) * | 2019-05-21 | 2019-08-16 | 季华实验室 | Based on the displacement measuring device and method from mixing holographic interference |
| CN111473846A (en) * | 2020-04-13 | 2020-07-31 | 西安柯莱特信息科技有限公司 | Weighing device and system based on Fabry-Perot interference |
| CN112616005A (en) * | 2020-12-30 | 2021-04-06 | 维沃移动通信有限公司 | Camera module and electronic equipment |
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| Title |
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| 沈小燕，蓝旭辉，朱鹤年，孙志鹏，禹静: "基于法布里-珀罗标准具的亚微米级位移测量方法", 《中国激光》, pages 1 - 9 * |
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