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A Design Method of Staring Peripheral Equal Range Infrared Imaging System

An infrared imaging system, a technology of action distance, applied in optical components, instruments, optics, etc., can solve problems such as the realization of potential, and achieve the effect of balanced monitoring

Active Publication Date: 2019-07-23
云海桥(北京)科技有限公司
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  • Claims
  • Application Information

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Problems solved by technology

However, the significance of the surrounding infrared imaging system in the battlefield lies in the potential of wide-area information acquisition. In this way, the system basically fails to realize this potential, and the actual suitable field of view only accounts for a part of the system's obtained field of view.

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  • A Design Method of Staring Peripheral Equal Range Infrared Imaging System
  • A Design Method of Staring Peripheral Equal Range Infrared Imaging System
  • A Design Method of Staring Peripheral Equal Range Infrared Imaging System

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[0058] Taking the design method of the system realized by the curved mirror with rotational symmetry and the vanadium oxide infrared focal plane detector as an example, the description is as follows:

[0059] The parameters of the vanadium oxide infrared focal plane used in this embodiment are: the detector material is vanadium oxide, the pixel size is 1024×1024, the pixel pitch is 15 μm, the detector size d is 15.36 mm, and the noise equivalent temperature difference NETD=25 mK.

[0060] The system parameters of this embodiment (refer to Image 6 and Figure 7 ): Field of view range of pitch angle α=60°-100°, distance between mirror vertex and camera optical center is set to 200mm, lens focal length f=20mm, center wavelength λ=10μm, system F / # is 1.4.

[0061] Other parameters of this embodiment: target size D TGT = 5m, task criterion V = 2.338, correction factor k' = 1560, scene contrast SCN TMP = 7.5K, apparent target contrast C TARGET = 0.1667.

[0062] Let the produc...

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Abstract

The invention provides a staring-type panoramic-viewing equal-action-distance infrared imaging system designing method. The method comprises: first, setting the product of the azimuth angle resolution IFOVH and the pitch angle resolution IFOVV of the imaging system as a given constant k; and then, according to the constant k, calculating the reflection mirror face type to realize the design of the imaging system. According to the invention, the geometrical mean of the azimuth angle resolution and the pitch angle resolution is set as a constant, and the constant is used as the designing condition for an equal-action-distance system. The imaging system designed by the method can be utilized to meet the requirement for realizing equal action distance in different pitching fields of view and the azimuth fields of view.

Description

technical field [0001] The invention relates to a design method of a staring-type peripheral vision infrared imaging system with equal action distance, and belongs to the technical field of peripheral vision infrared imaging. Background technique [0002] In order to solve the problem of the narrow field of view of the conventional imaging system, the peripheral vision system came into being. As the name suggests, the Zhoushi needs the system to have the ability to obtain a range of 360° in azimuth, and at the same time cover a certain range of elevation angles according to application requirements. There are many forms of peripheral vision, but considering the dynamic acquisition of the scene, it is necessary to use a staring peripheral vision system, and the most representative of this type of system is the catadioptric peripheral vision imaging system. The catadioptric imaging system uses a single imaging device to simultaneously and seamlessly image a large field of vie...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/00
CPCG02B27/0012
Inventor 王岭雪贺宇蔡毅
Owner 云海桥(北京)科技有限公司