Optical stitching method of large area array optoelectronic devices

An optoelectronic device and optical splicing technology, which is applied in the field of aerospace optical remote sensors, can solve the problems of complex system structure, poor achievability, and large size, and achieves the effect of simple principle, simple operation, and increased size.

Inactive Publication Date: 2011-12-21
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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Problems solved by technology

[0004] In 2001, at the "15th National Infrared Science and Technology Exchange Conference and National Optoelectronics Technology Academic Exchange Conference", the article "CCD Optical Stitching Technology for Improving the Measurement Accuracy of Large Field of View Images" was published by Dai Junzhao, Institute of Optoelectronics Technology, Chinese Academy of Sciences. A method of using secondary prism light splitting to realize CCD optical splicing is proposed. This method adopts a semi-reflective and semi-transparent light splitting method, and the incident beam needs to be split twice to reach the image plane, which reduces the incident light energy to the image plane. A quarter of the original energy, resulting in insufficient energy
The splicing method of the single-center spherical system is complex in structure due to the introduction of small secondary imaging lenses, with large dimensions and poor engineering feasibility

Method used

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Embodiment Construction

[0030] Such as figure 1 As shown, it is a schematic diagram of splicing 6 small area array devices into a large area array device in 2×3 mode. For the convenience of description, firstly, a space Cartesian coordinate system must be established. The coordinate system takes the light propagation direction as the positive direction of the Z-axis (in this case, the vertical downward direction is selected), the positive direction of the Y-axis is the vertical paper surface, and the positive direction of the X-axis is drawn by the right hand. The rule is determined, and the origin of coordinates is O.

[0031] Place six identical detectors in sequence in space, the planes where the first detector 7, the third detector 9, and the fifth detector 11 are located are all parallel to the XOZ plane, where the first detector 7 and the third detector 9 are located The plane intersects the positive semi-axis of the Y axis, the plane where the fifth detector 11 is located intersects the negat...

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Abstract

With the further increase in the demand for large-scale area array photodetection devices, it is urgent to carry out the research on splicing technology of area array photodetection devices. The optical splicing method of the large area array optoelectronic device of the present invention adopts prism type splicing, and by adjusting the positions of the prism and the area array device in space, it is realized that 6 pieces of small area array devices are spliced ​​into a 2×3 mode large area array device or Four small area array devices are spliced ​​into a large area array device in 2×2 mode. The splicing method is simple and easy to implement in engineering, which can meet the demand for large area array photodetection devices in the field of aerospace remote sensing.

Description

technical field [0001] The invention belongs to the technical field of aerospace optical remote sensors, and relates to an optical splicing method applied to large area array photoelectric devices of space remote sensors. Background technique [0002] With the development of space remote sensors, the demand for large-scale area array photodetection devices is increasingly strong, such as geostationary orbit staring satellite remote sensors, low-orbit frame digital surveying and mapping remote sensors, aerial frame digital remote sensors, cryogenic optical ultra-large-scale Matrix cosmic space thermal vision instrument, deep space exploration and space experiment technology, etc. The large area array photoelectric detection remote sensor is an important direction for the development of my country's aerospace remote sensors in the future, and it is an important means to improve the time resolution of my country's optical remote sensing. [0003] Due to the limitations of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/481G02B5/04
Inventor 兰丽艳阮宁娟李妥妥马建华郭悦林宏宇
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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