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Two-channel common-lens optical system

An optical system, dual-channel technology, applied in the field of optical systems, can solve the problems of large volume, difficult assembly, complex structure, etc., and achieve the effect of small volume, simple assembly, and good imaging.

Active Publication Date: 2021-06-25
CHANGCHUN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problems of complex structure, large volume and difficult assembly of the existing dual-channel optical system, the present invention provides a dual-channel common-lens optical system

Method used

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  • Two-channel common-lens optical system

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Embodiment Construction

[0019] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0021] The two-channel co-lens optical system includes a convex lens 1, a concave lens 1, a convex lens 2, an aperture stop 4 and a relay lens group in sequence from the object plane to the image plane 7. The first convex lens 1, the first concave lens 2, the second convex lens 3, the aperture stop 4 and the relay lens group are arranged along the same optical a...

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Abstract

The dual-channel co-lens optical system relates to the field of optical system technology, which solves the existing problems of complex structure, large volume and difficult assembly. Convex lenses with negative power and concave lenses with negative power are set in sequence from the object plane to the image plane. , Convex lens two with positive refractive power, aperture stop and relay lens group; Circumferentially arranged outside the first concave surface and connected to the first concave surface; the surface of the concave lens near the object plane and the image plane is concave, and the concave surface near the object plane includes the third concave surface and the fourth concave surface, and the fourth concave surface is circumferentially arranged Outside the third concave surface and connected to the third concave surface; the first concave surface, the second concave surface, the third concave surface and the fourth concave surface are all aspherical surfaces, the curvature of the first concave surface is smaller than the curvature of the second concave surface, and the curvature of the third concave surface is smaller than that of the first concave surface The curvature of the four concave surfaces. The invention has simple structure, small volume and easy assembly and adjustment.

Description

technical field [0001] The invention relates to the technical field of optical systems, in particular to a dual-channel co-lens optical system. Background technique [0002] The dual-channel optical system can obtain the field of view information of two different channels, which can not only expand the field of view of the optical system, but also realize the detection requirements of different channels by arranging each channel with a specified focal length, which can be widely used in military operations Detection, warning, navigation, search and rescue and civil monitoring systems, unmanned vehicles and medical detection and other fields. [0003] In this regard, in the prior art, it is generally adopted to realize a dual-channel optical system by adding a beam splitter or an additional optical element. The structural forms of the two channels of this dual-channel optical system are different, and there are problems such as complex structure, large volume, and difficult a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/18
CPCG02B13/18
Inventor 付跃刚刘博文刘智颖
Owner CHANGCHUN UNIV OF SCI & TECH
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