CN2541858Y

CN2541858Y - Image coupler

Info

Publication number: CN2541858Y
Application number: CN 02214246
Authority: CN
Inventors: 阎学纯
Original assignee: Henan Costar Group Co Ltd
Current assignee: Henan Costar Group Co Ltd
Priority date: 2002-04-20
Filing date: 2002-04-20
Publication date: 2003-03-26
Anticipated expiration: 2012-04-20

Abstract

The utility model belongs to the light-conductive technology field of optics, which relates to an image coupler utilized in a low-light level night vision device. The image coupler is substantially characterized in that integrated fiber-optic faceplate materials with a higher resolution ratio than luminescent screen materials can be adapted to manufacture a flat convex glass which has proper thickness, a convex surface and a flat surface, wherein the diameter of the convex surface is equal with the diameter of a concave spherical surface of a image-converting intensifier luminescent screen, and the convex surface of the flat convex glass can be adhered on the concave spherical surface of the luminescent screen of the image intensifier through cement. Compared with the prior art, the image coupler can realize changing the concave spherical surface of the image surface of the image intensifier luminescent screen to be flat images, the design of an eyeglass is convenient, and conditions of universalization with other devices are created for the design of the eyeglass.

Description

Image coupler

Technical field:

The utility model belongs to light guide techniques field in the optics, is a kind of Image coupler that is used for the lll night vision instrument.

Background technology:

In existing lll night vision instrument, usually adopt be import surpass two generation image intensifier fluoroscopic image surface, the version of this image intensifier image surface is concave spherical surface, for ease of observing, when the design eyepiece, need the sightingpiston of eyepiece is designed to and the corresponding protruding sphere of the concave spherical surface of image intensifier fluorescent screen images face, this has increased difficulty for the design of eyepiece, simultaneously the universalization of eyepiece is restricted.

Summary of the invention:

The purpose of this utility model provides a kind of fluoroscopic recessed ball image surface of image intensifier that can make becomes plane picture, reduces the Image coupler of eyepiece design difficulty simultaneously.

Realize that the technical scheme that the purpose of this utility model is taked is: the principal character of this Image coupler is: makes one and have suitable thickness, one side for convex surface, simultaneously be the plano-convex lens on plane, wherein, the convex surface radius of plano-convex lens is identical with the fluoroscopic concave spherical surface radius of image intensifier, the convex surface utilization gummed system of its lens is glued on the fluoroscopic concave spherical surface of image intensifier, and constituting a kind of back image planes that are coupled thus is the visual coupling mechanism on plane.In the utility model, this plano-convex lens adopts the bundling optical fiber panel material higher than video screen material discrimination rate to make.

According to the Image coupler that such scheme is made, can reach the purpose that makes image intensifier video screen concave spherical surface picture plane become plane picture, so both made things convenient for the design of eyepiece, created and the unitized condition of Other Instruments also for simultaneously the design of eyepiece.Proof by experiment, this Image coupler is except that having 5% optical energy loss approximately, and its image effect is good.

Description of drawings:

Utilize accompanying drawing to further describe embodiment of the present utility model below;

Fig. 1 is a structural representation of the present utility model;

Embodiment:

Referring to Fig. 1, Image coupler of the present utility model, it is optics job operation according to routine, press the optical fiber light-guiding direction principle consistent with optical axis direction, the bundling optical fiber panel material that employing is higher than video screen material discrimination rate, make one and have suitable thickness, one side is a convex surface, one side is the plano-convex lens 1 on plane, wherein, the convex surface radius of plano-convex lens 1 is identical with the concave spherical surface radius of the video screen 2 of transshaping booster, utilize the agent of optical resin glue glued adhesion to be glued on the concave spherical surface of video screen 2 of image intensifier on the convex surface of this plano-convex lens 1, the picture plane that can reach after the concave spherical surface coupling that makes image intensifier video screen picture plane is the purpose of plan view image.

Claims

1, a kind of Image coupler, it is characterized in that: make one have suitable thickness, one side is the plano-convex lens on plane [1] for convex surface, one side, wherein, the convex surface radius of plano-convex lens [1] is identical with the concave spherical surface radius of the video screen [2] of transshaping booster, and utilizes adhesive to be glued on the concave spherical surface of video screen [2] of image intensifier on the convex surface of this plano-convex lens [1].

2, Image coupler according to claim 1 is characterized in that: plano-convex lens [1] adopts the bundling optical fiber panel material higher than video screen material discrimination rate to make.

3, Image coupler according to claim 1 is characterized in that: adhesive adopts optical resin glue.