CN210605195U - Gas zoom lens and camera - Google Patents
Gas zoom lens and camera Download PDFInfo
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- CN210605195U CN210605195U CN201921911583.8U CN201921911583U CN210605195U CN 210605195 U CN210605195 U CN 210605195U CN 201921911583 U CN201921911583 U CN 201921911583U CN 210605195 U CN210605195 U CN 210605195U
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Abstract
The utility model discloses a gas zoom lens, which comprises a container with the length of the electrified axial direction variable, a first transparent cover plate, a second transparent cover plate and a transparent elastic diaphragm, wherein the container is provided with a relative light inlet and a light outlet, and an axial containing cavity communicated between the light inlet and the light outlet; the first transparent cover plate is arranged at the light inlet of the container, the second transparent cover plate is arranged at the light outlet of the container, and the transparent elastic diaphragm is arranged in the axial cavity of the container to divide the axial cavity into a first cavity communicated with the light inlet and a second cavity communicated with the light outlet; the first cavity is filled with a first gas with a first refractive index, and the second cavity is filled with a second gas with a second refractive index. The gas zoom lens adopts gas as a light-gathering medium, and even leakage occurs, short circuit between the camera and the electronic equipment can not be caused. The utility model also discloses a camera.
Description
Technical Field
The utility model relates to a camera lens technique especially relates to a gas zoom lens and camera.
Background
Be provided with polylith lens in traditional camera lens, realize zooming the function through the relative movement in the optical axis direction between the polylith lens, structure and assembly are all comparatively complicated, and are bulky. With the development of technology, liquid zoom lenses with small size and simple structure have come to be available.
As shown in fig. 1, the conventional liquid zoom lens includes a lens barrel 1 ', and an electrolyte solution 2' and an insulating solution 3 'that are encapsulated in the lens barrel 1' and are immiscible with each other, wherein a light inlet and a light outlet of the lens barrel 1 'are respectively sealed by a glass cover plate 4', and by applying a voltage to both ends of the liquid zoom lens, a curvature of a boundary curved surface between the electrolyte solution 2 'and the insulating solution 3' can be changed, so as to change a refraction degree of imaging light, thereby implementing a zoom function. However, both the camera and the electronic device on which the camera is mounted have complicated circuit wiring, and once the electrolyte 2' in the liquid zoom lens leaks, the camera and the electronic device are short-circuited, so that the product is scrapped, and the safety cannot meet the requirement.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a gas zoom adopts gas as the spotlight medium, even take place to leak and can not cause camera and electronic equipment's short circuit yet.
The utility model also provides a camera.
The utility model discloses the technical problem that will solve realizes through following technical scheme:
a gas zoom lens comprises a container with a changeable axial length after being electrified, a first transparent cover plate, a second transparent cover plate and a transparent elastic diaphragm, wherein the container is provided with a light inlet and a light outlet which are opposite, and an axial cavity communicated between the light inlet and the light outlet; the first transparent cover plate is arranged at the light inlet of the container, the second transparent cover plate is arranged at the light outlet of the container, and the transparent elastic diaphragm is arranged in the axial cavity of the container to divide the axial cavity into a first cavity communicated with the light inlet and a second cavity communicated with the light outlet; the first cavity is filled with a first gas with a first refractive index, and the second cavity is filled with a second gas with a second refractive index.
Further, the container is a piezoelectric ceramic container or a memory alloy container.
Further, the first transparent cover plate and/or the second transparent cover plate is a glass cover plate or a resin cover plate.
Further, the transparent elastic diaphragm is a PDMS film or an EVA vertical film.
Further, the container is of a cylindrical structure.
Furthermore, the device also comprises a first electrode arranged on the container and close to the light inlet, and a second electrode arranged on the first cavity of the container and close to the transparent elastic diaphragm.
Furthermore, the light source device also comprises a third electrode arranged on the container and close to the light outlet, and a fourth electrode arranged on the second cavity of the container and close to the transparent elastic diaphragm.
A camera comprises the gas zoom lens and an image sensor, wherein a light sensing surface of the image sensor faces to a light outlet of the gas zoom lens.
The utility model discloses following beneficial effect has: the gas zoom lens adopts gas as a light-gathering medium, and adopts first gas and second gas with different refractive indexes to replace electrolyte and insulating liquid in the existing liquid zoom lens, so that even if the first gas leaks, the short circuit of a camera and electronic equipment can not be caused.
Drawings
FIG. 1 is a schematic diagram of a conventional liquid zoom lens;
fig. 2 is a schematic view of a gas zoom lens provided by the present invention;
fig. 3 is a first schematic zooming diagram of the gas zoom lens provided by the present invention;
fig. 4 is a second schematic zooming view of the gas zoom lens provided by the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Example one
As shown in fig. 2, an air zoom lens includes a powered container 1 with a variable axial length, a first transparent cover plate 2, a second transparent cover plate 3, and a transparent elastic diaphragm 4, where the container 1 has a light inlet and a light outlet opposite to each other, and an axial cavity communicated between the light inlet and the light outlet; the first transparent cover plate 2 is arranged at the light inlet of the container 1, the second transparent cover plate 3 is arranged at the light outlet of the container 1, and the transparent elastic diaphragm 4 is arranged in the axial cavity of the container 1 to divide the axial cavity into a first cavity communicated with the light inlet and a second cavity communicated with the light outlet; the first cavity is filled with a first gas 5 having a first refractive index and the second cavity is filled with a second gas 6 having a second refractive index.
The gas zoom lens adopts gas as a light-gathering medium, and adopts a first gas 5 and a second gas 6 with different refractive indexes to replace an electrolyte and an insulating liquid in the existing liquid zoom lens, so that even if the first gas leaks, the short circuit of a camera and electronic equipment can not be caused.
The transparent elastic diaphragm 4 separating the first gas 5 and the second gas 6 is equivalent to a boundary curved surface between the first gas 5 and the second gas 6, and when the zoom lens is used, the refraction degree of imaging light rays can be changed by controlling the curvature of the separation interface, so that the zoom aim is fulfilled.
Specifically, the container 1 may be a piezoelectric ceramic container 1 or a memory alloy container 1, and has a tubular structure with an annular or frame-shaped cross section. When the container is used, only the two ends of the container 1 in the axial direction are respectively electrified, so that the length of the container 1 between the two electrified ends can be changed, and the larger the current is, the larger the change is, and the changing directions respectively correspond to the current directions.
The gas zoom lens further comprises a first electrode arranged on the container 1 and close to the light inlet, a second electrode arranged on the first cavity of the container 1 and close to the transparent elastic diaphragm 4, a third electrode arranged on the container 1 and close to the light outlet, and a fourth electrode arranged on the second cavity of the container 1 and close to the transparent elastic diaphragm 4.
As shown in fig. 3 and 4, a section of the container 1 between the first electrode and the second electrode constitutes a first container wall 11 with a variable axial length of energization, and a section between the third electrode and the fourth electrode constitutes a second container wall 12 with a variable axial length of energization. When the portable zoom lens is used, as shown in fig. 3, a forward current is introduced between the first electrode and the second electrode, the axial length of the first container wall 11 is increased, the air pressure in the first cavity is decreased, the first gas 5 has suction to the transparent elastic diaphragm 4, meanwhile, a reverse current is introduced between the third electrode and the fourth electrode, the axial length of the second container wall 12 is decreased, the air pressure in the second cavity is increased, and the second gas 6 has thrust to the transparent elastic diaphragm 4, so that the transparent elastic diaphragm 4 is protruded towards the first cavity, which is equivalent to zooming; as shown in fig. 4, a negative current is applied between the first electrode and the second electrode, the axial length of the first container wall 11 decreases, the gas pressure in the first cavity increases, the first gas 5 has a thrust force on the transparent elastic diaphragm 4, and a positive current is applied between the third electrode and the fourth electrode, the axial length of the second container wall 12 increases, the gas pressure in the second cavity decreases, and the second gas 6 has a suction force on the transparent elastic diaphragm 4, so that the transparent elastic diaphragm 4 protrudes toward the second cavity, which is equivalent to zoom reduction.
The first transparent cover plate 2 and/or the second transparent cover plate 3 may be a glass cover plate or a resin cover plate, and the transparent elastic membrane 4 may be a PDMS film or an EVA vertical film.
Example two
A camera includes the air zoom lens and an image sensor, wherein a light-sensitive surface of the image sensor faces a light outlet of the air zoom lens.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is specific and detailed, but the invention can not be understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by adopting the equivalent substitution or equivalent transformation should fall within the protection scope of the present invention.
Claims (8)
1. A gas zoom lens is characterized by comprising a container with a changeable axial length after being electrified, a first transparent cover plate, a second transparent cover plate and a transparent elastic diaphragm, wherein the container is provided with a light inlet and a light outlet which are opposite, and an axial cavity communicated between the light inlet and the light outlet; the first transparent cover plate is arranged at the light inlet of the container, the second transparent cover plate is arranged at the light outlet of the container, and the transparent elastic diaphragm is arranged in the axial cavity of the container to divide the axial cavity into a first cavity communicated with the light inlet and a second cavity communicated with the light outlet; the first cavity is filled with a first gas with a first refractive index, and the second cavity is filled with a second gas with a second refractive index.
2. An air zoom lens according to claim 1, wherein the container is a piezoceramic container or a memory alloy container.
3. The gas zoom lens according to claim 1, wherein the first transparent cover plate and/or the second transparent cover plate is a glass cover plate or a resin cover plate.
4. The gas zoom lens of claim 1, wherein the transparent elastic membrane is a PDMS film or an EVA vertical film.
5. The gas zoom lens according to claim 1, wherein the container is a cylindrical structure.
6. The gas zoom lens of claim 1, further comprising a first electrode disposed in the container proximate to the light inlet, and a second electrode disposed in the first cavity of the container proximate to the transparent elastic membrane.
7. The gas zoom lens of claim 1 or 6, further comprising a third electrode disposed in the container near the light exit port, and a fourth electrode disposed in the second cavity of the container near the transparent elastic diaphragm.
8. A camera head, comprising the air zoom lens according to any one of claims 1 to 7 and an image sensor, wherein a light-sensitive surface of the image sensor faces a light outlet of the air zoom lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921911583.8U CN210605195U (en) | 2019-11-07 | 2019-11-07 | Gas zoom lens and camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921911583.8U CN210605195U (en) | 2019-11-07 | 2019-11-07 | Gas zoom lens and camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210605195U true CN210605195U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921911583.8U Active CN210605195U (en) | 2019-11-07 | 2019-11-07 | Gas zoom lens and camera |
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| CN (1) | CN210605195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156556A (en) * | 2021-04-26 | 2021-07-23 | 安徽美高美高分子材料有限公司 | Acrylic plate capable of changing transmittance |
-
2019
- 2019-11-07 CN CN201921911583.8U patent/CN210605195U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156556A (en) * | 2021-04-26 | 2021-07-23 | 安徽美高美高分子材料有限公司 | Acrylic plate capable of changing transmittance |
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