CN210123479U

CN210123479U - Focus adjustable reflector

Info

Publication number: CN210123479U
Application number: CN201920464581.2U
Authority: CN
Inventors: 黄齐; 顾浩; 张�浩; 陈丽媛; 刘清华; 唐义甲
Original assignee: Fuyang Normal University
Current assignee: Fuyang Normal University
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-03-03
Anticipated expiration: 2029-03-29

Abstract

The utility model provides a focusing reflector, include: the device comprises a transparent film, a side cylinder, optical transparent liquid, a plane reflector, an edge piston, a connecting bracket, a telescopic rod, an electric device, a switch, a bottom cover, an adjusting button, an air hole and an air cavity; wherein, the transparent film is made of transparent elastic material, and the thickness is increased from the circle center to the edge; optical transparent liquid is filled between the transparent film and the plane reflector; the plane reflector is connected with the telescopic rod through a connecting bracket; the telescopic rod is driven by an electric device; the periphery of the plane reflector is provided with an edge piston; the edge piston is in contact with the inner wall of the side cylinder and can slide; an air cavity is arranged between the bottom cover and the plane reflector; the bottom cover is provided with a switch, an adjusting button and an air hole; the switch can control the state of the electric device; the adjustable telescopic link length of adjustment button to this utilizes atmospheric pressure to adjust transparent film camber, thereby adjusts the speculum focus: the air holes are communicated with the air cavity and the external atmosphere to maintain air pressure balance.

Description

Focus adjustable reflector

Technical Field

The patent of the utility model relates to a speculum, more specifically is a can focus speculum.

Background

Nowadays, the reflector is widely applied by virtue of the characteristic of changing the path of light; the reflector is mostly made of hard glass and a coating, so that the focal length of the reflector is fixed no matter the reflector is a plane reflector, a convex reflector or a concave reflector, the range is limited in practical application, and the reflector is not flexible enough; secondly, the plane mirror, the convex mirror and the concave mirror cannot be made of one mirror.

Disclosure of Invention

The utility model discloses the problem that needs to solve has:

(1) in order to solve the problem of fixed focal length of the reflector;

(2) the problem that a plane mirror, a convex mirror and a concave mirror cannot be made of the same mirror is solved.

The utility model provides a focusing reflector, include: transparent film, side drum, optics transparent liquid, plane mirror, marginal piston, linking bridge, telescopic link, electric actuator, switch, bottom, adjustment button, bleeder vent, air chamber.

Wherein, the transparent film is made of transparent elastic material, and the thickness is increased from the circle center to the edge; optical transparent liquid is filled between the transparent film and the plane reflector; the plane reflector is connected with the telescopic rod through a connecting bracket; the telescopic rod is driven by an electric device; the periphery of the plane reflector is provided with an edge piston; the edge piston is in contact with the inner wall of the side cylinder and can slide; an air cavity is arranged between the bottom cover and the plane reflector; the bottom cover is provided with a switch, an adjusting button and an air hole; the switch can control the state of the electric device; the adjusting button can adjust the length of the telescopic rod, so that the curvature of the transparent film is adjusted by utilizing the atmospheric pressure, and the focal length of the adjustable-focus reflector is adjusted; the air holes are communicated with the air cavity and the external atmosphere to maintain air pressure balance.

The utility model has the advantages that: the utility model discloses a not only solved the problem that plane mirror, convex surface speculum and concave surface speculum can not combine, combine three kinds of speculums together, solved the fixed problem of speculum focus again, make the focus of speculum can adjust wantonly at the certain limit.

Drawings

FIG. 1 is a schematic perspective view of a variable focus mirror;

FIG. 2 is a bottom schematic view of a variable focus mirror.

Description of reference numerals: 1. a transparent film; 2. a side cylinder; 3. an optically clear liquid; 4. a plane mirror; 5. a rim piston; 6. connecting a bracket; 7. a telescopic rod; 8. an electric device; 9. a switch; 10. a bottom cover; 11. an adjustment button; 12. air holes are formed; 13. an air chamber.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention are further described below with reference to the embodiments and the accompanying drawings; the preferred embodiments and descriptions of the present invention are provided for explaining the present invention, but not for limiting the present invention.

As shown in the drawings, in an embodiment of the present invention, a structure of a variable focus mirror includes: the device comprises a transparent film 1, a side cylinder 2, optical transparent liquid 3, a plane reflector 4, an edge piston 5, a connecting bracket 6, a telescopic rod 7, an electric device 8, a switch 9, a bottom cover 10, an adjusting button 11, an air hole 12 and an air cavity 13.

Wherein, the transparent film 1 is made of transparent elastic material, and the thickness is increased from the circle center to the edge; the space between the transparent film 1 and the plane reflector 4 is filled with optical transparent liquid 3; the plane reflector 4 is connected with a telescopic rod 7 through a connecting bracket 6; the telescopic rod 7 is driven by an electric device 8; the periphery of the plane reflector 4 is provided with an edge piston 5; the edge piston 5 is in contact with the inner wall of the side cylinder 2 and can slide; an air cavity 13 is arranged between the bottom cover 10 and the plane reflector 4; the bottom cover 10 is provided with a switch 9, an adjusting button 11 and an air hole 12; the switch 9 can control the state of the electric device 8; the adjusting button 11 can adjust the length of the telescopic rod 7, so that the curvature of the transparent film 1 is adjusted by utilizing the atmospheric pressure, and the focal length of the reflector is adjusted; the air holes 12 are communicated with the air cavity 13 and the outside atmosphere to maintain air pressure balance.

When the adjustable-focus reflector is used, the switch 9 is turned on, the electric device 8 works, the adjusting button 11 is moved, the length of the telescopic rod 7 can be controlled, the plane reflector 4 is stressed, the edge piston 5 is installed at the edge of the plane reflector 4, the plane reflector 4 can slide in the side cylinder 2, the transparent film 1 is stressed to deform through the optical transparent liquid 3, and the deformation degree of the transparent film 1 is sequentially reduced from the circle center to the edge because the thickness of the transparent film 1 is increased from the circle center to the edge, so that a lens is formed, and the focal length of the adjustable-focus reflector is changed; the movement of the plane reflector can make the adjustable-focus reflector become a plane reflector, a convex reflector and a concave reflector, thereby solving the problem that the plane reflector, the convex reflector and the concave reflector can not be made of the same reflector; and because the movement position of the plane reflector is continuous, the focal length of the adjustable-focus reflector can be adjusted randomly within a certain range, thereby solving the problem of fixed focal length of the reflector.

It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A variable focus mirror, comprising: the device comprises a transparent film (1), a side cylinder (2), optical transparent liquid (3), a plane reflector (4), an edge piston (5), a connecting support (6), a telescopic rod (7), an electric device (8), a switch (9), a bottom cover (10), an adjusting button (11), an air hole (12) and an air cavity (13); the space between the transparent film (1) and the plane reflector (4) is filled with optical transparent liquid (3); the plane reflector (4) is connected with the telescopic rod (7) through a connecting bracket (6); the telescopic rod (7) is driven by an electric device (8); the periphery of the plane reflector (4) is provided with an edge piston (5); the edge piston (5) is in contact with the inner wall of the side cylinder (2) and can slide; an air cavity (13) is arranged between the bottom cover (10) and the plane reflector (4); the bottom cover (10) is provided with a switch (9), an adjusting button (11) and an air hole (12).

2. A tuneable mirror as claimed in claim 1, wherein: the transparent film (1) is made of transparent elastic material, and the thickness increases from the circle center to the edge.

3. A tuneable mirror as claimed in claim 1, wherein: the switch (9) can control the state of the electric device (8); the adjusting button (11) can adjust the length of the telescopic rod (7), so that the curvature of the transparent film (1) is adjusted by utilizing atmospheric pressure, and the focal length of the focusing reflector is adjusted; the air holes (12) are communicated with the air cavity (13) and the outside atmosphere to maintain air pressure balance.