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A large field of view staring infrared and ultraviolet two-color early warning device

An early warning device and ultraviolet technology, which are applied in the fields of aerospace, optical technology and information remote sensing, can solve the problems of small field of view, off-axis aberration, easy-to-center occlusion of the coaxial line, etc. The effect of the alarm rate

Active Publication Date: 2018-09-28
SHANDONG INST OF AEROSPACE ELECTRONICS TECH
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AI Technical Summary

Problems solved by technology

[0004] However, the current large field of view lenses, such as fisheye refraction lenses, catadioptric dual lenses, etc., all have serious chromatic aberration and off-axis aberration, and cannot realize multi-spectral simultaneous detection.
And the above-mentioned optical lens generally adopts the way of combined lens, the structure is complex, the installation and adjustment are difficult, and it is limited by the absorption of the material itself.
Pure reflective optical lenses, such as Cassegrain and Gregory lenses, use a combination of double or triple lenses. Although there is no chromatic aberration, the field of view is small, difficult to install and adjust, and the center of the coaxial lens is easily blocked. , low light transmittance

Method used

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  • A large field of view staring infrared and ultraviolet two-color early warning device
  • A large field of view staring infrared and ultraviolet two-color early warning device
  • A large field of view staring infrared and ultraviolet two-color early warning device

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Embodiment Construction

[0035] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0036] A large field of view staring type infrared and ultraviolet dual-color early warning device, such as figure 1 As shown, it includes a lobster-eye optical lens 1, a band-pass filter film 2, an infrared-ultraviolet dual-color detector 4, a focal plane readout circuit 5, and a signal processing unit.

[0037] (1) Lobster Eye Optical Lens 1

[0038] Using a bionic optical lens imitating the eyes of a lobster, according to the principle of total reflection, the radiation information of the target source can be collected in a large field of view and converged on the focal plane. The lobster is a shellfish living in the deep sea. The structure of the lobster eye is different from that of the human eye. There are many small cube arrays on the eyeball of the lobster eye, which is similar to a curved square hole microchannel plate.

[0039] Therefore, the l...

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Abstract

The invention discloses a large-field-of-view (LFOV) staring infrared-ultraviolet double-spectrum early-warning device. A lens focuses a target light source based on a total reflection principle and has no chromatic aberration. A novel infrared-ultraviolet double-color detector is used so as to achieve LFOV staring infrared-ultraviolet double-spectrum early warning.

Description

technical field [0001] The invention belongs to the technical fields of aerospace, optical technology and information remote sensing, and in particular relates to a staring infrared and ultraviolet two-color early warning device with a large field of view. Background technique [0002] Optical early warning is a remote sensing method that obtains information about the target by detecting the radiation energy of the target. If the radiation energy information of the detected target is in the infrared band, it is an infrared early warning. If the radiation energy information of the detected target is in the ultraviolet band, it is an ultraviolet early warning. Optical early warning has the concealment of passive detection, strong anti-interference ability, and has the advantages of high-resolution imaging, small size, and light weight. The optical early warning working band can choose any light band from infrared to ultraviolet, and at the same time, multi-spectral combination...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B17/06G02B13/06G02B5/136H01L31/111
CPCG02B5/136G02B13/06G02B17/06H01L31/111
Inventor 金东东杨宁虎徐立宏王文丛李文彬孙书坤裴崇雷
Owner SHANDONG INST OF AEROSPACE ELECTRONICS TECH
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