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Method for designing large-field-of-view laser alarm lens

A technology of laser alarm and design method, applied in optics, optical components, instruments, etc., can solve the problems of difficult processing and assembly, small field of view, etc., to reduce difficulty, avoid small field of view, and reduce costs.

Inactive Publication Date: 2021-01-05
XIAN FANGYUANMING TECH CO LTD
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Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a large field of view laser warning lens design method to solve the problems of small field of view and difficult processing and assembly in the prior art

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  • Method for designing large-field-of-view laser alarm lens
  • Method for designing large-field-of-view laser alarm lens
  • Method for designing large-field-of-view laser alarm lens

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Embodiment Construction

[0022] In order to better explain the present invention and facilitate understanding, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] see Figure 1-6 , the present invention provides a kind of large field of view laser warning lens design method, described method comprises the following steps:

[0024] Step S1 is specifically: according to the principle of geometric optics, design the optical field of view according to the geometric relationship h=f*tan(fov) of focal length, image height, and field of view. Generally speaking, the system field of view fov has been determined, so We can only design in the remaining two variables, the focal length is the focal length of the optical system, and the image height is the radius of the photosensitive surface of the detector.

[0025] Step S2 specifically includes: using a multi-mirror optical structure to extend the optical path to realize the receiving fu...

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Abstract

The invention relates to a large-view-field laser alarm lens design method, and belongs to the field of laser alarm optical design. The method comprises the steps of S1, designing an optical view field according to a geometrical optical principle and a geometrical relationship among a focal length, an image height and a view field angle; S2, designing a laser alarm optical system by utilizing ZEMAX software; and S3, selecting optical materials and meeting lens processing requirements. The method has the beneficial effects that the problems of small field angle and high processing and assembling difficulty in the prior art can be avoided, and a multi-lens method is introduced, so that the difficulty can be reduced, large-field detection can be realized, and the cost can be reduced.

Description

technical field [0001] The patent of the present invention provides a large-field-of-view laser warning lens design method, which relates to the field of laser warning optical design. Background technique [0002] As an important component of the existing photoelectric countermeasure equipment, the laser warning device needs to realize a large-scale airspace warning. Therefore, a large-field optical system is extremely necessary. The two commonly used optical systems are single-lens and wide-angle lens. However, the single-lens optical structure with a photosensitive surface of only a few millimeters cannot achieve a large field of view, and wide-angle lenses are generally used in imaging laser warning systems. This kind of optical system structure is relatively complicated and generally requires 5 to 8 lenses to achieve , due to its complex structure, there are great difficulties in system design, lens processing and assembly, and the cost is very high. Therefore, in the p...

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Application Information

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IPC IPC(8): G02B27/00
CPCG02B27/0012
Inventor 王鹏涛宋方刘继锋
Owner XIAN FANGYUANMING TECH CO LTD
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