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Photoelectric detection device with multi-filter rapid switching mechanism

A photoelectric detection and fast switching technology, applied in measurement devices, optical radiation measurement, electrical radiation detectors, etc., can solve the problems of filter tilt, jitter, low structural strength, large structural size, etc., to achieve short switching time, Good coaxiality and small size

Inactive Publication Date: 2019-09-17
SHANGHAI AEROSPACE CONTROL TECH INST
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Problems solved by technology

The disadvantage of the transmissive filter wheel mechanism is that the size of the structure is large, and it is easy to interfere with other structures in the optical-mechanical structure; the structure has low strength and poor rigidity, and the shock and vibration generated by the missile launching section are easy to make the filter tilt and shake in the optical path

Method used

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  • Photoelectric detection device with multi-filter rapid switching mechanism
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  • Photoelectric detection device with multi-filter rapid switching mechanism

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Embodiment Construction

[0038] The photoelectric detection device with a fast switching mechanism for optical filters proposed by the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0039] Such as figure 1 , a photoelectric detection device with a double filter switching mechanism, used for the seeker to detect the target, consists of a lens 1, a detector 4, and a frame 7. The lens 1 is fixed on the upper end surface of the frame 7 by the screw 3, and the detector 4 is fixed on the lower end surface of the frame 7 by the screw 3-2. The lens 1 converges the infrared radiation from the target to the focal plane of the detector 4, and the detector 4 converts the thermal radiation space image of the target into an electrical signal.

[0040] Such as figure 1 and Figure 4 As shown, the lens 1 is composed of a lens one 16, a lens two 17, a lens barrel 18, a spherical double filter assembly 2 and a limited rotation angle drivin...

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Abstract

The invention relates to a photoelectric detection device with a multi-filter rapid switching mechanism, which is used for detection of a guide head for a target. The device comprises a lens, the filter switching mechanism, a detector, a frame and a fastener; the filter switching mechanism comprises a spherical filter assembly, a limited rotation angle driving mechanism, a bearing and a locking part; the spherical filter assembly consists of a plurality of filters capable of enabling light on a specific spectrum band to transmit and a spherical skeleton; and the limited rotation angle driving mechanism is a single opposite pole step-type side edge relay consisting of two windings and an opposite pole magnetic ring. The photoelectric detection device has the advantages of compact structure, reliability for filter switching, high positioning accuracy, good self-locking performance and the like; and a plurality of working modes are additionally increased in an existing photoelectric detection device, so that the application range of the product can be enlarged, and photoelectric detection capacity under the complex background is improved.

Description

technical field [0001] The invention relates to a photoelectric detection device of a multi-filter fast switching mechanism, which belongs to the application field of seeker target detection. Background technique [0002] With the continuous development of infrared decoy technology, new challenges are posed to the traditional small target recognition. Through the analysis of the spectral features of flying targets and infrared decoys, the infrared multi-spectral images are used to identify small targets in the sky background with interference from flying decoys. In order to meet the requirements of multi-spectral imaging of optical detectors in complex environments, a filter switching mechanism is often added to the photoelectric detection system. [0003] The filter switching mechanism mostly adopts the form of a transmission filter wheel. In the transmission filter wheel mechanism, the light passes through the filter and is imaged on the focal plane of the detector. Usual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/10G01J5/08G01J5/02
CPCG01J5/0205G01J5/0803G01J5/10G01J2005/0077
Inventor 赫崇域宋敏敏苏建平赵亚南吴建东
Owner SHANGHAI AEROSPACE CONTROL TECH INST
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