Wide spectral segment non-focusing all-day airglow imager

An imager, all-sky technology, applied in spectrum investigation, instrumentation, installation, etc., can solve the problems of complex imager structure and operation, low imager luminous flux, small detection field of view, etc., to ensure transmission uniformity, save The effect of removing the image surface focusing device and increasing the effective relative aperture

Pending Publication Date: 2019-04-19
XI'AN 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

[0007] The purpose of the present invention is to overcome the shortcomings of existing airglow imagers such as small detection field of view, narrow spectral range and the need for a mechani

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
  • Wide spectral segment non-focusing all-day airglow imager
  • Wide spectral segment non-focusing all-day airglow imager
  • Wide spectral segment non-focusing all-day airglow imager

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0039] This embodiment provides a wide-spectrum non-focusing all-sky airglow imager, including an image-space telecentric fisheye lens 1, an object-space telecentric imaging lens 3, and a detector (not shown) arranged in sequence from left to right along the same optical axis. icon). The detector can use a scientific grade CCD camera.

[0040] see image 3 , a filter wheel (not shown) is arranged between the fisheye lens 1 and the imaging lens 3, and the filter wheel is provided with 8 narrow-band filters 2 with different wavelength bands, zero focal power and a size of 4 inches, The filter wheel can switch the narrowband filter 2 to the focal plane of the fisheye lens 1;

[0041] The narrow-band filter 2 is a glass plate, and the material used is H-ZLAF92. The central wavelengths of the eight narrow-band filters 2 are 427.8nm, 557.7nm, 578...

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

PropertyMeasurementUnit
Center wavelengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to an airglow imager. In order to solve the problems that an existing airglow imager is small in detecting view field and narrow in spectral range and needs to adopt a mechanicalfocusing device, so that the structure of the existing imager and using operation are complex, and the luminous flux of the existing imager is low, the wide spectral segment non-focusing all-day airglow imager is provided. The imager comprises an image space telecentric fish-eye lens, an object space telecentric imaging lens and a detector; a filter wheel is arranged between the fish-eye lens andthe imaging lens, a plurality of narrow band filters with different wave bands and the focal power of zero are arranged on the filter wheel, and the narrow band filters can be switched to a focal plane of the fish-eye lens through the filter wheel; the fish-eye lens comprises a negative light focal power front lens set and a positive light focal power back lens set, and an aperture diaphragm is arranged on a light path between the front lens set and the back lens set; the imaging lens comprises a plurality of gluing lenses composed of plus lenses and concave lenses, the absolute value of a relative abbe number difference value of the plus lenses and the concave lenses is greater than or equal to 5, and the absolute value of a relative dispersion difference value of the plus lenses and theconcave lenses is less than or equal to 0.001.

Description

technical field [0001] The invention relates to an airglow imager, in particular to a wide-spectrum non-focusing all-sky airglow imager. Background technique [0002] Airglow is an important natural luminous phenomenon in the earth's space environment. It is a certain wavelength of light emitted by molecules and atoms in the atmosphere excited by the sun's short-wave ultraviolet radiation. It generally appears between 50-500km above the earth, and its brightness is very low. The distribution is uneven and difficult to detect, and only very sensitive instruments can observe it. [0003] The spatial and temporal distribution of airglow is modulated by various atmospheric dynamic processes such as tidal waves, atmospheric gravity waves and planetary waves, and is an important tracer of atmospheric dynamic processes and atmospheric photochemical processes. special status. [0004] like figure 1 , figure 2 As shown, an existing airglow imager consists of a fisheye lens 01, a...

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): G02B13/06G02B7/00G02B7/02G02B13/22G01J3/28G01W1/00
CPCG02B7/006G02B7/026G02B13/06G02B13/22G01J3/28G01W1/00
Inventor 冯玉涛李战涛郝雄波张智南畅晨光白清兰胡炳樑
Owner XI'AN 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