A Temperature Focus Compensation Method for Photoelectric Tracking System

A technology of photoelectric tracking system and compensation method, which is applied to parts of TV systems, parts of color TVs, TVs, etc. Focus, reduce manual correction operations, improve the effect of automatic degree

Active Publication Date: 2020-10-13
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0003] Aiming at the problem that the current photoelectric tracking system faces the problem that the circular grating sensor of the secondary mirror is easily affected by temperature, resulting in unclear imaging of the optical system, this invention proposes a temperature adjustment compensation method, which is based on the linked list data structure in the software Realized, with the functions of solving, querying and saving focusing parameters at different temperatures

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  • A Temperature Focus Compensation Method for Photoelectric Tracking System
  • A Temperature Focus Compensation Method for Photoelectric Tracking System
  • A Temperature Focus Compensation Method for Photoelectric Tracking System

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Embodiment Construction

[0019] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] Such as figure 1 Shown is the linked list data structure defined by the autofocus module. Aiming at the physical parameters involved in the actual engineering realization of the optical imaging system, the corresponding focusing data storage structure is designed. At the same time, due to the engineering requirements of real-time temperature focusing processing, a corresponding automatic focusing module is designed. The design method of this module makes the original focusing parameter acquisition operation simple, has the function of data storage, and realizes the adaptive selection of focusing parameters at different temperatures, and solves the problem of focusing and imaging of photoelectric tracking systems at different temperatures. difficult question. Its specific implementation steps are as follows:

[0021] S...

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Abstract

The invention provides a temperature focusing compensation method of a photoelectric tracking system. The imaging effect of the TV imaging unit of the photoelectric tracking system is related to the optical path parameters of the system. The secondary mirror mechanism of the focusing system can move back and forth parallel to the optical path of the system, thereby changing the image distance of the TV imaging. The components of the focusing system are easily affected by temperature, resulting in changes in the physical parameters of the components and affecting the imaging effect. The present invention saves the optimal focusing parameters corresponding to different temperatures in the configuration file of the system by using the linked list query method. During the working period of the system, the corresponding focusing parameters are selected in real time according to the current temperature. Its core is to establish the data structure of the linked list query and the storage method of the focusing parameters corresponding to different temperatures. This method effectively solves the problem that the focusing imaging of the photoelectric tracking system cannot adapt to various temperatures, and ensures that the system has good focusing imaging effects at different temperatures.

Description

technical field [0001] The invention belongs to the field of optical imaging control, in particular to a temperature focusing compensation method of a photoelectric tracking system, which is mainly used to solve the problem of automatic focusing under different temperatures of the photoelectric tracking system. Background technique [0002] The photoelectric tracking system images the shape of the target on the TV detector through the optical imaging system. The optical imaging system consists of primary mirror, secondary mirror and TV detector. The system adjusts the position of the secondary mirror in real time according to the distance of the current target, so that the target can be clearly imaged on the TV detection target surface. However, the position sensor (circular grating) of the secondary mirror is susceptible to deformation due to temperature changes, resulting in changes in the readings of the circular grating sensor, which in turn causes the aligned secondary...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232
CPCH04N23/67
Inventor 任维赵志强夏云霞缪礼江川毛耀
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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