Circuit structure for realizing vacuum refrigeration of imaging terminal
A technology of vacuum refrigeration and circuit structure, which is applied in TV, electrical components, color TV, etc. It can solve the problems of large vacuum cavity and unfavorable electronic system maintenance and detection, and achieve the same transmission delay, convenient upgrade and debugging, and reliability high effect
Active Publication Date: 2020-06-23
长春长光奥闰光电科技有限公司
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Problems solved by technology
[0004] In order to solve the problem that the existing imaging terminal vacuum equipment needs to place all the electronic systems of the imaging terminal in a closed cavity, and the vacuum cavity is huge and is not conducive to the maintenance, detection, modification and upgrading of the electronic system in the later stage, the present invention provides a Circuit structure for realizing vacuum cooling of imaging terminal
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specific Embodiment approach 1
[0018] Specific implementation mode 1. Combination figure 1 and figure 2 Describe this embodiment, a circuit structure for realizing vacuum cooling of an imaging terminal, including a focal plane component 1, a power supply and imaging control component 2, and a temperature control cooling component 3;
[0019] The focal plane assembly 1 includes a CMOS photodetector 1-1, and the CMOS photodetector is placed in a sealed vacuum cavity 4; the focal plane assembly 1 is a flexible circuit board, and the CMOS photodetector 1-1 passes The flexible circuit board 6 passes through the airtight vacuum chamber 4 and is connected to the high-density inter-board connector 5, and the high-density inter-board connector 5 is connected to the power supply and imaging control assembly 2; Temperature control cold component 3;
[0020] The focal plane component 1 only includes a CMOS photodetector 1-1 for imaging, and all the various analog and digital power conversions, digital interface circ...
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The invention discloses a circuit structure for realizing vacuum refrigeration of an imaging terminal, relates to the technical field of photoelectric imaging, and solves the problems that according to an existing imaging terminal vacuum device, all electronic systems of an imaging terminal need to be placed in a closed cavity, the vacuum cavity is large, and later maintenance, detection, modification and upgrading of the electronic systems are not facilitated. The imaging terminal vacuum device comprises a focal plane assembly, a power source, an imaging control assembly and a temperature control refrigeration assembly. The CMOS photoelectric detector end of the focal plane assembly is arranged in the closed vacuum cavity, the focal plane assembly adopts a flexible circuit board, the flexible circuit board penetrates through the closed vacuum cavity and is connected with a high-density inter-board connector, and the high-density inter-board connector is connected with the power supplyand imaging control assembly; a temperature control refrigeration assembly is mounted on the outer side of the vacuum cavity; the flexible circuit board penetrates through the closed cavity to be connected with the rear-end circuit system, no electronic device releases gas in the vacuum cavity, the vacuum degree can be kept for a long time, and a vacuum air extractor does not need to be carried after repeated use. And meanwhile, the device has the characteristics of simple structure and high reliability.
Description
technical field [0001] The invention relates to the technical field of photoelectric imaging, in particular to a simple, efficient and reliable circuit structure for realizing vacuum cooling of an imaging terminal. Background technique [0002] Imaging terminals used for ground-based astronomical observation and weak light detection need to be cooled to below minus 20 degrees to reduce dark current and improve detection capabilities. In order to prevent the water vapor in the air from condensing and contaminating the focal plane, it is necessary to vacuumize and then cool the imaging terminal. However, due to the complexity of the imaging terminal circuit system and numerous components, the vacuum degree at the factory will gradually decrease in subsequent use due to the sealing degree and the slow release of gas from the components themselves, which cannot meet the refrigeration requirements. [0003] At present, the solution generally adopted by manufacturers at home and ...
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IPC IPC(8): H04N5/225G03B17/55
CPCG03B17/55H04N23/52H04N23/50H04N23/54
Inventor 陈涛王建立曹景太刘昌华李洪文张恒陈宝刚
Owner 长春长光奥闰光电科技有限公司