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Optical system for portable wide temperature range target simulator

A target simulator and optical system technology, which is applied in the field of the optical system of the portable wide temperature range target simulator, can solve the problems of high development cost and difficult design, and achieves the reduction of volume and weight, the reduction of system volume and weight, and the guarantee of The effect of clear aperture

Active Publication Date: 2018-04-10
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to high development costs and difficult design, typical target simulators can only be used at room temperature

Method used

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  • Optical system for portable wide temperature range target simulator
  • Optical system for portable wide temperature range target simulator
  • Optical system for portable wide temperature range target simulator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0026] figure 1 It is a schematic diagram of the optical system of the portable wide temperature range target simulator: the primary mirror assembly 1, the secondary mirror assembly 2 and the turning mirror assemblies 3-5 constitute the off-axis RC reflective optical configuration of the target simulator. The primary mirror support, the secondary mirror support, the three mirror assembly substrates and the hollow invar steel fittings constitute the heat dissipation system of the optical system, which ensures that the interval between the primary mirror assembly 1 and the secondary mirror assembly 2 is not affected by temperature changes, and the airtight chamber 4 It is ensured that the primary mirror assembly 1 and the secondary mirror assembly 2 are free from frost and dew condensation in high and low temperature environments.

[0027] The parameters of the sp...

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Abstract

The invention relates to an optical system of a portable wide temperature range target simulator. The optical system comprises an off-axis RC optical system junction composed of an airtight chamber, aprimary mirror, a secondary mirror and a turning mirror, the aperture is ensured, the volume and weight of the system are also reduced, and a portable design is achieved. The optical system consisting of the main mirror, the secondary mirror and the turning mirror is mounted on an invar combined bracket, the optical system and the invar combined bracket thereof are integrally mounted on an aluminum alloy large backplane connected to the outside, and the athermalized image quality design requirements in a wide temperature range of -55DEG C to +70DEG C are achieved. The target simulator forms an inner cavity of a gas-tight structure through two multi-spectral zinc sulfide windows at a light exit port position and a light source interface position, the inner cavity is filled with dry nitrogen, and no frost formation or moisture condensation of the mirror surface and structure of the inner cavity over a wide temperature range is achieved.

Description

technical field [0001] The invention belongs to an optical system and relates to an optical system of a portable wide temperature range target simulator. Background technique [0002] The target simulator is a simulation device that provides an infinite target for the photoelectric detection system. As an airborne photoelectric detection system, its operating temperature also changes with the height of the carrier, basically between -55°C and +70°C. When the photoelectric detection system is doing temperature environment adaptability test on the ground, it is required that the target simulator also work at the same ambient temperature. Due to high development cost and difficult design, typical target simulators can only be used in normal temperature environment. In order to more realistically provide photoelectric detection systems with full-temperature simulation targets with excellent imaging quality, it is necessary to use athermal design technology to develop target si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B17/08
CPCG02B17/08
Inventor 杜保林陈晓梅胡磊力周德召李艳晓郑国锋邱龙甲王少飞梁锡宁
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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