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Closed focal plane box of space camera

A technology of space camera and focal plane box, which is applied to cameras, camera bodies, TVs, etc., can solve the problems of bulkiness, debris pollution, easy entry of dust and other debris, etc., to reduce the weight of the camera, avoid pollution, Guarantee the effect of electromagnetic compatibility problems

Inactive Publication Date: 2015-09-09
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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  • Closed focal plane box of space camera
  • Closed focal plane box of space camera
  • Closed focal plane box of space camera

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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 transferred to the focal plane circuit board.

Embodiment 2

[0033] The focal plane box is divided into front and rear two subspaces by using a focal plane sealing pressure ring. The focal plane circuit board 3 is installed in the front cavity, and other circuit boards are installed in the rear space. The circuit boards are connected by connectors. The front cavity is sealed by the sealing pressure ring and the lens flange, and all the mounting screw holes are blind holes, which effectively ensures that there will be no foreign matter inside the focal plane box. The 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 of a space camera. The closed focal plane box comprises a front panel, a sealing pressing ring, a connecting cylinder and a rear panel, wherein one end of the front panel is hermetically connected with a lens flange, the sealing pressing ring is in close fit with periphery of the other end of the front panel, one end of the connecting cylinder is fixedly connected with the sealing pressing ring and contacted with the front panel, and the other end of the connecting cylinder is fixedly connected with the rear panel; a focal panel circuit board is arranged in a front cavity, a plurality of connecting bolt groups are orderly arranged in the cavity, the connecting bolt group close to the sealing pressing ring is used for fixedly pressing the focal panel circuit board on the front panel, a circuit board is fixed between two connecting bolt groups, and a rear end of the connecting bolt group close to the rear panel is fixed on the rear panel. For solving the technical problems that the impurities such as dust and the like can easily enter the existing focal panel box and the exiting focal panel box is heavy, the closed focal panel box disclosed by the invention is highly lightened, and meanwhile, the impurity pollution problem of the traditional camera focal plane CCD / CMOS is effectively solved through the structure.

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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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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