Polarization filtering method and apparatus for astronomical optical telescope

A polarization filtering and telescope technology, applied in the field of photoelectric detection, can solve the problems of suppressing the background of atmospheric scattering, difficulty in obtaining observation data of ground-based daytime astronomical objects, etc., so as to achieve the effect of suppressing the background of atmospheric scattering, improving the effect, and improving the signal-to-noise ratio.

Inactive Publication Date: 2006-08-30
ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is more difficult to obtain ground-based daytime astronomical observation data
[0005] At present, in addition to using spectral filtering to improve the signal-to-noise ratio of star detection based on the difference in spectral characteri

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polarization filtering method and apparatus for astronomical optical telescope
  • Polarization filtering method and apparatus for astronomical optical telescope
  • Polarization filtering method and apparatus for astronomical optical telescope

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0054] The polarization filter device of the astronomical optical telescope is characterized in that it includes an optical component adapter tube 11 installed on the adapter plate 1. The adapter tube 11 has a stepped shape composed of a large tube and a small tube, and the inner wall of the small tube is set There is a bearing 12, a ring gear 6 is installed in the bearing 12, a polarizer 2 is installed in the ring gear 6, a stepping motor 5 is installed on the step of the big tube, and a driving gear 4 coaxial with the shaft of the stepping motor 5 is installed in the big tube It meshes with the encoder 3, the driving gear 4 and the ring gear 6, and a lens barrel 9 is connected to the rear end of the small barrel through a screw thread. A filter 8 and an attenuator 7 are installed in the lens barrel 9. The rear end of the lens barrel 9 has an interface for connecting with a CCD camera, and the interface at the rear end of the lens barrel may also be a camera interface, a visual i...

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

No PUM Login to view more

Abstract

The invention relates to an astronomical optics telescope polarization filter method and device. It installs the atmosphere dispersion polarization radiation measuring meter on shank of main telescope and rapidly gain polarization angle direction and polarization state data of target object by single channel polarization radiation meter. Comparing the polarization angle and the drift testing angle of polarizing film, rotating polarizing film to make the drift testing direction plumbing to atmosphere polarization direction, the disturbance of atmosphere dispersion and radiation would be effectively restricted. The invention could improve chronometer planet observing effect in day time, prolong time span of observing, and increase observing data. It has bright application prospect in ground work chronometer observation.

Description

technical field [0001] The invention belongs to the technical field of photoelectric detection, and specifically relates to a polarization filter device that can be added to an astronomical optical telescope, can be used for atmospheric background filtering during astronomical observation, improves the effect of daytime astronomical observation and prolongs the time of daytime observation. Background technique [0002] In the field of astronomy, astronomical optical telescopes are the most important means of optical observation of stars. However, the influence of the atmosphere cannot be avoided during ground-based observation, and atmospheric scattering is an important factor affecting the observation effect. It is for this reason that the site selection for ground-based astronomical observations is based on the principle of being far away from cities and at high altitudes. [0003] Daytime sunlight is scattered and absorbed by the Earth's atmosphere. Among them, astronom...

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
no application Login to view more
IPC IPC(8): G02B23/00G02B7/00G01J4/00
Inventor 孙晓兵洪津骆冬根杨伟锋荀毓龙乔延利叶松
Owner ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap