Telescope primary mirror detection and calibration system
A calibration system and telescope technology, applied in the field of optical detection, can solve the problems of high switching accuracy and repeatability, cumbersome operation, and high difficulty, and achieve low switching accuracy and repeatability, simple operation, reduced complexity and effect of difficulty
Active Publication Date: 2020-02-11
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF6 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] However, in the process of detection and calibration of the primary mirror, it is necessary to frequently switch between the interferometer and the Shaker-Hartmann (S-H) system, and to ensure the good shape of the mirror surface through repeated measurements and response tests, which is not only cumbersome to operate, but also The requirements for switching accuracy and repeatability are very high. In addition, since the interferometer and the Shack-Hartmann (S-H) system are respectively aligned with the primary mirror, it is also difficult, thus further increasing the complexity of detection.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0048] The core of the invention is to provide a telescope primary mirror detection and calibration system, which is simple to operate and reduces the complexity and difficulty of detection.
[0049] Please refer to figure 1 and figure 2 , figure 1 A schematic diagram of the primary mirror detection and calibration system of the telescope provided by the specific embodiment of the present invention in the primary mirror 1 calibration state; figure 2 for ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a telescope primary mirror detection and calibration system. The system comprises a primary mirror and a computer-generated holography element, an interferometer cooperated with the computer-generated holography element to detect the surface type of the primary mirror, a Shack-Hartmann calibration device cooperated with the computer-generated holography element to obtain surface type data of the primary mirror so as to calibrate the surface type of the primary mirror, a reflector enabling switching between the interferometer and the Shack-Hartmann calibration device, and a switching driver connected with the reflector to driving the reflecting mirror to be cut in / out. When the reflector is cut out between the computer-generated holography element and the interferometer, the interferometer is aligned with the computer-generated holography element and the primary mirror so as to carry out surface type detection on the primary mirror; and when the reflector is cutin between the computer-generated holography element and the interferometer, the reflector shields the interferometer, so that the Shack-Hartmann calibration device is aligned with the computer-generated holography element and the primary mirror to calibrate the surface type of the primary mirror. Operation is simple, and the detection complexity and difficulty are reduced.
Description
technical field [0001] The invention relates to the technical field of optical detection, and more specifically, to a detection and calibration system for a telescope primary mirror. Background technique [0002] In the field of optical inspection technology, interferometers and computational holographic elements (CGH) are usually used to inspect the surface shape of the primary mirror of the telescope to determine whether the surface shape of the primary mirror is qualified. [0003] With the increase of the telescope aperture, the support of the main mirror of the telescope has changed from a passive support to an active support. Therefore, in practical applications, in order to maintain a good surface shape of the mirror surface, it is necessary to use a force actuator to correct the surface shape. [0004] For this reason, in the prior art, the Shaker-Hartmann (S-H) system is usually used to calibrate the surface shape of the primary mirror during the detection stage of ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01B11/24
CPCG01B11/24G01B11/2441
Inventor 王文攀王建立王志臣李宏壮李洪文
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI