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Method and device for analyzing complex pupil imaging of segmented primary mirror

A block-based, block-based technology, applied in optics, optical components, special data processing applications, etc., can solve problems such as analysis result errors, and achieve high simulation accuracy and reliability.

Inactive Publication Date: 2012-03-14
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

Since this method does not consider the influence of the design error of the optical system itself on the analysis results, there are also errors in the analysis results. For imaging systems close to the diffraction limit, this error is usually acceptable, but for systems with large aberrations, It is necessary to consider the influence of the error of the optical system itself

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  • Method and device for analyzing complex pupil imaging of segmented primary mirror
  • Method and device for analyzing complex pupil imaging of segmented primary mirror
  • Method and device for analyzing complex pupil imaging of segmented primary mirror

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Embodiment 1

[0033] Embodiment 1 of the present invention provides a block-type primary mirror complex pupil imaging analysis method, such as figure 1 As shown, the method includes:

[0034] Step S101: establishing a data transmission channel with the optical design simulation module;

[0035] The optical design simulation module in this embodiment is used to model the block type and realize image quality analysis. In practice, it can be realized by components in the developed simulation software, for example, Zemax software can be used for realization. The data transmission channel established in this step is used for data interaction with the optical design simulation module.

[0036] Zemax software supports two basic ray tracing modes, namely sequential (Sequential) ray tracing and non-sequential (Non-sequential) ray tracing. Ordinary optical systems are built in sequential ray tracing mode. In this mode light rays can only be traced from one optical surface of the system to the next...

Embodiment 2

[0059] Embodiment 2 of the present invention provides a device for complex pupil imaging analysis of block-type primary mirrors, such as figure 2 As shown, the device includes: a channel establishment unit 201 , a pupil shape sending unit 202 , an error sending unit 203 and a receiving unit 204 .

[0060] The channel establishment unit 201 is used to establish a data transmission channel with the optical design simulation module. The pupil shape sending unit 202 is used to send an aperture description instruction to the optical design simulation module through the data transmission channel, and the aperture description instruction is used to describe the pupil shape of each block mirror of the main mirror, and the optical design simulation The non-sequential optical tracing component in the module is able to model each sub-mirror of the primary mirror according to the above-mentioned aperture description instructions. The error sending unit 203 is configured to send the bloc...

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Abstract

The invention provides a method and a device for analyzing the complex pupil imaging of a segmented primary mirror. The method comprises: establishing a data transmission passage to an optical design simulation module; sending an pupil description command to the optical design simulation module; sending position error parameters and surface shape error parameters of segment mirrors to the opticaldesign simulation module through the data transmission passage; and receiving the wavefront errors of exit pupils fed back by the optical design simulation module through the data transmission passage, wherein the wavefront errors of the exit pupils are obtained through image quality analysis performed by an image quality analysis subunit in the optical design simulation module according to the position error parameters and the surface shape error parameters of the segment mirrors of the primary mirror and the models of the segment mirrors after the image quality analysis subunit simulates the transmission of light rays in the mirror and an actual optical system. The method and the device for analyzing the complex pupil imaging provided by the invention can analyze the pupil shapes of thesegment mirrors of the primary mirror and the influences of the position errors and shape errors of the segment mirrors of the primary mirror on image quality.

Description

technical field [0001] The invention belongs to the field of optical design, and in particular relates to a complex pupil imaging analysis method and device of a segmented primary mirror. Background technique [0002] In a high-resolution space optical remote sensor, the primary mirror is located at the entrance pupil and adopts a block method. The geometric shape of each block mirror of the primary mirror can be a regular hexagon, a regular octagon, and a ring sector. There are gaps between the segmented mirrors of the primary mirror, and the secondary mirror and the secondary mirror support rods block the primary mirror. These gaps and occlusions make the shape of the pupil very complicated. At the same time, there may be translation, tilt errors and surface shape errors of six degrees of freedom in each block mirror of the main mirror. These factors will affect the imaging of the optical system. Therefore, it is necessary to analyze the influence of complex pupils on ima...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G02B27/00
Inventor 张晓芳俞信董冰
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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