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A general-purpose low-cost wide-field laser seeker optical system

An optical system and laser-guided technology, applied in optics, optical components, filters, etc., can solve the problems of increasing production costs, increasing the difficulty of manufacturing and assembling, and failing to meet the low cost of equipment, so as to improve the processing and manufacturing efficiency. Assembly performance, reduce production costs, meet the effect of large-scale rapid production

Active Publication Date: 2022-02-08
湖南华南光电(集团)有限责任公司
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Problems solved by technology

[0003] However, in order to achieve a large field of view, the existing laser seeker optical system adopts a double Gauss structure, and the number of lenses is large, which not only increases the production cost, but also increases the difficulty of processing, manufacturing and assembly, and cannot meet the low requirements of equipment research and production. cost requirements

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  • A general-purpose low-cost wide-field laser seeker optical system
  • A general-purpose low-cost wide-field laser seeker optical system
  • A general-purpose low-cost wide-field laser seeker optical system

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Embodiment Construction

[0018] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] Such as figure 1 As shown, a general-purpose low-cost large-field laser seeker optical system, the entire optical system is only composed of an aspheric lens 1, the diffusely reflected laser light from the target forms a four-quadrant detector on the four-quadrant detector after passing through the optical system. For a circular spot with a certain size and uniform energy distribution, the position of the center of gravity of the circular spot is calculated according to the sum-difference method, and then output to the guidance control system to complete the guidance. The structural parameters of the optical system are shown in Table 1:

[0020] Table 1 Optical system structural parameters

[0021]

[0022] The aspheric lens material in this embodiment is ZnS, and its convex surface is a spherical surface, and the radius of curvatur...

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Abstract

The invention discloses a general-purpose low-cost large-field laser seeker optical system, which is composed of a piece of aspheric lens, the material of which is ZnS, the convex surface is a spherical surface, the radius of curvature is 20.087mm, and the concave surface is an even order Aspheric surface, vertex curvature c is 1 / 158.321, conic coefficient k is 0.48336, aspheric coefficient A=1.6123E-004, B=-1.362E-006, lens thickness is 7.88mm, and the distance from lens to four-quadrant detector is 9mm, anti-reflection coating and narrow-band filter coating are coated on the surface of the lens. The optical system of the present invention is only composed of one aspheric lens, has a large field of view and a simple structure, reduces the production cost, and also considers the generality of the optical system in the design, greatly reducing the cost of scientific research and development of series products.

Description

technical field [0001] The invention relates to a general-purpose low-cost and large-field-of-view laser seeker optical system, which belongs to the technical field of optical design. Background technique [0002] Since the 21st century, precision-guided weapons have played an increasingly important role in military strikes. Laser guidance technology uses external laser beams to irradiate targets, and the laser seeker on the bomb uses the diffusely reflected laser light from the target to capture and track the target. , is a technology that guides weapons to hit targets and integrates light, mechanics, electricity, and information processing. Because of its high hitting accuracy, strong anti-interference ability, and easy use, it has been widely used in recent years and has played a huge role. Power has become the focus of current research in the industry. [0003] However, in order to achieve a large field of view, the existing laser seeker optical system adopts a double G...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B3/02G02B1/00G02B1/11G02B5/20G02B19/00F41H13/00
CPCG02B3/02G02B1/00G02B1/11G02B5/20G02B19/0014F41H13/005
Inventor 孙攀卢鑫陈静周波李显彦胡军李路蔡俊杰王建梅
Owner 湖南华南光电(集团)有限责任公司
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