Large Aperture Telescope Discrete Aperture Detection System
A technology for detection systems and telescopes, which is applied to measuring devices, instruments, and optical devices, etc., to achieve the effects of reducing costs, improving the accuracy and efficiency of auto-collimation testing, and improving the accuracy of auto-collimation testing
Active Publication Date: 2020-09-08
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The embodiment of the present disclosure provides a discrete aperture detection system for a large-aperture telescope, which solves the disadvantages of the related art using the sub-aperture splicing algorithm for self-collimation testing
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] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. 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 terms "first", "second", "third" and "fourth" in the specification and claims of this application and the above drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device compris...
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 embodiment of the invention discloses a discrete aperture detection system for a large-aperture telescope, which comprises a kinematic interface and a discrete aperture detection subsystem mountedon the telescope by the kinematic interface. The discrete aperture detection subsystem comprises a plane mirror, a mechanical rotary table, a surface shape regulation execution mechanism and a wave front information calculation processor, wherein an aperture of the plane mirror is smaller than a full aperture of the telescope; the mechanical rotary table is used for driving the plane mirror to move so as to implement complete covering of the plane mirror used as a discrete sub-aperture on the aperture of the telescope; the surface shape regulation execution mechanism is arranged below the plane mirror and is used for carrying out bitwise open-loop correction on a surface shape of the plane mirror; the plane mirror and an interferometer at a Nasmyth focus of the telescope constitute a self-collimation optical path; and the wave front information calculation processor is used for obtaining wave front information of the telescope according to surface shape data of each discrete sub-aperture after surface shape correction in the process that the plane mirror moves to cover the full aperture of the telescope. According to the invention, self-collimation test accurate and test efficiency of the telescope are effectively promoted, and the discrete aperture detection system is also beneficial for reducing self-collimation test cost.
Description
technical field [0001] Embodiments of the present invention relate to the field of discrete aperture self-collimation testing, in particular to a discrete aperture detection system for large aperture telescopes. Background technique [0002] In order to realize a deeper and more detailed exploration of the universe, the aperture of the telescope is getting larger and larger. The large-aperture plane mirror is usually used as a self-alignment inspection mirror for detecting the optical system of a large-aperture telescope, as well as a correction mirror and a return mirror in the system. The optical system is matched, and the size of the corresponding flat mirror is getting larger and larger. [0003] As the caliber increases, the cost of the plane mirror increases rapidly. According to the idea of "testing the big with the small", it is effective to reduce the cost of self-collimation testing by using a plane mirror with a smaller diameter instead of a large-diameter plane...
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 Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/08G01B11/24
CPCG01B11/08G01B11/2441
Inventor 安其昌吴小霞林旭东王建立陈涛
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI