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Broadband laser alarm structure based on dichroscope and grating diffraction

A technology of dichroic mirror and grating diffraction is applied in the field of broadband laser alarm structures, which can solve the problems of false alarms and false alarms of alarm devices, and achieve the effects of improving efficiency, high diffraction efficiency and wide detection band.

Active Publication Date: 2020-05-15
ZHONGBEI UNIV
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Problems solved by technology

[0004] Aiming at the technical problem that the above-mentioned traditional alarm device is prone to false alarms, the present invention provides a wide-band detector based on dichroic mirror and grating diffraction with compact structure, small size, light weight, high angular resolution and large field of view. Laser Warning Structure

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  • Broadband laser alarm structure based on dichroscope and grating diffraction
  • Broadband laser alarm structure based on dichroscope and grating diffraction

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] A broadband laser warning structure based on dichroic mirror and grating diffraction, such as figure 1 As shown, it includes a front field of view compression optical system 1, a dichroic mirror 2, a visible light blazed grating 3, a near-infrared light blazed grating 4, a first rear focus optical system 5, a second rear focus optical system 6, a near Infrared light focal plane detector 7, visible light focal plane detector 8, a dichroic mirror 2 is arr...

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Abstract

The invention belongs to the technical field of laser alarm structures, and particularly relates to a broadband laser alarm structure based on a dichroscope and grating diffraction. The system comprises a front view field compression optical system, a dichroscope, a visible light blazed grating, a near-infrared light blazed grating, a first rear focusing optical system, a second rear focusing optical system, a near-infrared light focal plane detector and a visible light focal plane detector, and the dichroscope is arranged on one side of the front view field compression optical system; a visible light blazed grating, a second rear focusing optical system and a visible light focal plane detector are sequentially arranged on one side of the dichroscope, and a near-infrared light blazed grating, a first rear focusing optical system and a near-infrared light focal plane detector are sequentially arranged on the other side of the dichroscope. The grating diffraction method is adopted to realize laser wavelength detection, and has the advantages of high wavelength resolution, wide detection wave band and the like. The invention is used for laser warning.

Description

technical field [0001] The invention belongs to the technical field of laser warning structures, and in particular relates to a wide-band laser warning structure based on dichroic mirrors and grating diffraction. Background technique [0002] The rapid development of laser technology makes it play an important role in war, and the development of laser technology will even affect the future war mode. In war, laser weapons pose a serious threat to military targets. In order to cope with the increasingly serious threat, all countries are accelerating the development of photoelectric information countermeasure technology, so as to quickly detect the enemy's laser threat on the battlefield and help combatants take appropriate measures in time , to achieve the purpose of effectively protecting one's own personnel and weapons and equipment from killing and destroying. Laser warning technology is an important component of photoelectric information countermeasures and an important m...

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Application Information

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IPC IPC(8): F41H13/00G01J9/02
CPCF41H13/005G01J9/0246
Inventor 张瑞王志斌石金王耀利李克武
Owner ZHONGBEI UNIV
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