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A closed focal plane box for a space camera

A technology of space camera and focal plane box, which is applied in the direction of camera, camera body, TV, etc., can solve the problems of bulky, easy to enter dust and other debris, debris pollution, etc., to reduce the weight of the camera and meet the sealing requirements , the effect of avoiding pollution

Inactive Publication Date: 2018-07-03
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem that the existing focal plane box is easy to enter dust and other sundries and is bulky, the present invention proposes a closed focal plane box for a space camera, which has the characteristics of high light weight, and at the same time, this structure effectively solves the problem of The problem of debris pollution on the focal plane CCD / CMOS of traditional cameras meets the light and small requirements of aerospace cameras for high stiffness, high strength, and low mass

Method used

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  • A closed focal plane box for a space camera
  • A closed focal plane box for a space camera
  • A closed focal plane box for a space camera

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The focal plane trimming pads are located between the front panel and the focal plane circuit board, and the four focal plane trimming pads are respectively located at the four corners of the focal plane circuit board. The focal plane trimming pad is made of heat insulating material, which can not only trim the perpendicularity between the focal plane and the optical axis, but also isolate the heat from the front panel from being transmitted to the focal plane circuit board.

Embodiment 2

[0033] The focal plane box adopts the focal plane metal sealing pressure ring to divide the entire focal plane box into front and back two subspaces, the focal plane circuit board 3 is installed in the front cavity, and other circuit boards are installed in the rear space, and the circuit boards are connected by connectors. The front cavity is sealed by a metal sealing pressure ring and lens flange, and all mounting screw holes are blind holes, which effectively guarantees that there will be no foreign matter inside the focal plane box. The metal sealing pressure ring is closely matched with the surroundings of the front panel, and the end face is pressed to the focal plane circuit board, while ensuring an effective and safe distance from the components on the circuit board.

Embodiment 3

[0035] like Figure 4 As shown, there are three or more sets of connecting studs: the first set of connecting studs 5 , the second set of connecting studs 7 and the third set of connecting studs 9 . The connecting stud sets each include four connecting studs. The front of each connecting stud is externally threaded, and the rear end is internally threaded. The studs are connected end to end to form a series structure, which effectively reduces the overall weight of the camera and solves the problem of excessive weight of the traditional camera focal plane box.

[0036] Other circuit boards in the rear cavity are compressed by connecting stud two and connecting stud three, and the front end face of the studs of the back layer and the rear end face of the studs of the previous layer are fixed to other circuit boards.

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Abstract

The invention relates to a closed focal plane box for a space camera, comprising a front panel, a metal sealing pressure ring, a connecting cylinder and a rear panel, one end of the front panel is sealed and connected with the lens flange, and the metal sealing pressure ring is connected to the other side of the front panel The surroundings of one end are closely matched, one end of the connecting cylinder is fixedly connected with the metal sealing pressure ring and is in contact with the front panel, the other end of the connecting cylinder is fixedly connected with the rear panel, the focal plane circuit board is placed in the front cavity, and there are sequentially arranged in the cavity Multiple connection stud groups, the connection stud group close to the metal sealing pressure ring presses the focal plane circuit board on the front panel, the circuit board is fixed between the two connection stud groups, and the connection stud group close to the rear panel The rear end is fixed on the rear panel. In order to solve the existing technical problem that dust and other sundries are easily trapped in the existing focal plane box, this product has the characteristics of high light weight. At the same time, this structure effectively solves the sundry pollution problem of traditional camera focal plane CCD / CMOS.

Description

technical field [0001] The invention relates to a structural design of a focal plane box of a space camera, and the designed focal plane box has structural characteristics such as closed type, lightness and miniaturization. Background technique [0002] The traditional aerospace camera focal plane box simply fixes the circuit board where the CCD is located inside the focal plane box. Since there is no less than one layer of circuit boards in the focal plane box, it is very easy to enter dust and other impurities when installing the rear circuit board. In severe cases, it will directly affect the imaging effect of the camera. Multiple circuit frames are required for multi-layer circuit board installation, which makes the entire focal plane box rather bulky. Contents of the invention [0003] In order to solve the technical problem that the existing focal plane box is easy to enter dust and other sundries and is bulky, the present invention proposes a closed focal plane box...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/225G03B17/02
Inventor 成鹏飞王炜任国瑞柴文义邹刚毅凤良杰宋宗玺樊学武
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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