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Infrared, laser and millimeter wave common-caliber three-mode seeker optical system

An optical system, millimeter-wave technology, applied in the field of optical systems, to achieve the effect of optimizing thickness and shape, compact overall layout, and reducing load

Inactive Publication Date: 2020-12-11
西安应用光学研究所
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  • Claims
  • Application Information

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Problems solved by technology

The infrared and laser light splitting method is more efficient, but the difficulty of this solution is that in a limited space, the optical design needs to take into account the different requirements of infrared and laser; to realize the transmission of millimeter waves at the sub-reflector and the reflection of infrared laser, it is necessary to Plating wide-spectrum dielectric film

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  • Infrared, laser and millimeter wave common-caliber three-mode seeker optical system
  • Infrared, laser and millimeter wave common-caliber three-mode seeker optical system
  • Infrared, laser and millimeter wave common-caliber three-mode seeker optical system

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Embodiment Construction

[0028] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] refer to Figure 1 to Figure 3 As shown, the infrared, laser, and millimeter wave common-aperture three-mode seeker optical system of the present invention includes a head cover 1, a primary mirror 2, a secondary mirror 3, a millimeter wave feed source 4, a waveguide 5, a millimeter wave transceiver module 6, and an eyepiece group 7. Flat beam splitter 8, laser channel 9, infrared channel 10; from left to right, head cover 1, millimeter wave feed 4, secondary mirror 3, and primary mirror 2 are arranged coaxially in sequence, and eyepiece group 7 is coaxially arranged on the main In the central opening of the mirror 2, the flat beam splitter 8 is arranged on the right side of the eyepiece group 7, and the millime...

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Abstract

The invention belongs to the technical field of optics, and discloses an infrared, laser and millimeter wave common-caliber three-mode seeker optical system. The system is composed of a hood, a primary mirror, a secondary mirror, a feed source, a waveguide, a millimeter wave transceiver module, an infrared channel, a laser channel and the like. The hood and the secondary mirror are designed to beequal in thickness, and the thickness values of the hood and the secondary mirror are optimized and calculated to ensure the lowest loss of millimeter waves. The secondary mirror is plated with a wide-spectrum medium reflecting film to reflect infrared and laser and transmit millimeter waves. The primary mirror is made of aluminum alloy, and the reflecting surface of the primary mirror is a paraboloid. The millimeter wave feed source is located between the secondary mirror and the hood, and the millimeter wave transceiver module is located at the rear end of the primary mirror and connected with the feed source through four waveguides. The infrared channel and the laser channel are located at the rear end of the primary mirror. Only the millimeter wave feed source is arranged at the secondary mirror so that the load can be reduced, and the stability of the system imaging quality can be effectively enhanced.

Description

technical field [0001] The invention belongs to the technical field of optical systems, and relates to an infrared, laser and millimeter wave common-aperture three-mode seeker optical system. Background technique [0002] More and more seekers adopt multi-mode composite guidance methods, such as infrared laser, visible light laser, infrared visible light, infrared laser millimeter wave and so on. The multi-mode composite seeker can make comprehensive use of the advantages of different wave band detection to improve the strike accuracy and battlefield survivability of precision guided weapons. [0003] Millimeter waves can penetrate smoke, dust, etc., but are susceptible to electromagnetic interference; while infrared imaging guidance is not easily interfered, but clouds, smoke and dust have strong absorption and attenuation of infrared, which reduces the infrared action distance; laser guidance is the current guidance It is a method with high precision in weapons, but the s...

Claims

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Application Information

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IPC IPC(8): G02B27/00F41G7/22
CPCG02B27/0025F41G7/2273
Inventor 周晓斌孙浩文江华张衡刘召庆原琦高婧吴妍王颖辉李玉喜卢恒曾波赵玮金明鑫
Owner 西安应用光学研究所
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