Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Coaxial optical system of spectrometer using volume holographic grating and prism to split light

A volume holographic grating and optical system technology, applied in spectrometry/spectrophotometry/monochromator, optical radiation measurement, instruments, etc., can solve the problems of large volume, difficult installation and adjustment, poor stability, etc. The effect of high energy utilization, compact structure and strong stability

Inactive Publication Date: 2016-08-24
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of large volume, difficult installation and adjustment, and poor stability existing in the existing off-axis grating dispersion spectroscopy system, the present invention provides a spectrometer coaxial optical system that uses a volume holographic grating and a prism to split light

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
  • Coaxial optical system of spectrometer using volume holographic grating and prism to split light
  • Coaxial optical system of spectrometer using volume holographic grating and prism to split light
  • Coaxial optical system of spectrometer using volume holographic grating and prism to split light

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0019] Such as figure 1 As shown, the coaxial optical system of the spectrometer using volume holographic grating and prism combined to split light in the present invention is composed of imaging lens 1 , slit 2 , collimating lens 3 , spectroscopic element 4 , converging lens 5 and CCD detector 6 . The image-side focus of the imaging lens 1 coincides with the object-side focus of the collimator lens 3 , and the slit 2 is located at the focus, that is, on the front focal plane of the collimator lens 3 .

[0020] Such as figure 2 As shown, the spectroscopic element 4 is composed of two identical volume holographic gratings 8 and a prism 10, the two volume holographic gratings 8 are respectively fixed on both sides of the prism 10, firstly the volume holographic grating 8 is fixed on the substrate 9 through the protective glass 7 Above, a holographic grating...

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 discloses a spectrometer coaxial optical system adopting a combination of two volume holographic gratings and a prism for light splitting, relates to the field of spectrometer light splitting systems and solves the problem that an existing off-axis-type grating dispersion spectrum system is large in size, difficult to mount and adjust and low in stability. The spectrometer coaxial optical system comprises an imaging lens, a slit, a collimating lens, a light splitting element, a converging lens and a CCD (charge coupled device) detector, the slit is positioned at an image focal point of the imaging lens, the light splitting element comprises the volume holographic gratings which are completely identical and the prism, the volume holographic gratings are glued on two sides of the prism respectively, the imaging lens images object light in the slit, the collimating lens collimates the object light to be parallel light, and the parallel light is refracted at an interface of the first volume holographic grating and the prism to enter the prism after diffraction light splitting through the first volume holographic grating, totally reflected on the undersurface of the prism to reach an interface of the prism and the second volume holographic grating and converged on the CCD detector through the converging lens after diffraction light splitting through the second volume holographic grating. The spectrometer coaxial optical system is compact in structure, simple to mount and adjust and high in light energy utilization rate.

Description

technical field [0001] The invention relates to the technical field of spectrometer light-splitting systems, in particular to a spectrometer coaxial optical system that uses volume holographic gratings and prisms for light-splitting. Background technique [0002] The spectrometer is an instrument used to obtain the spectral information of the target. It detects and identifies the target or analyzes the material composition through the spectral image of the target. It is widely used in the fields of national production, scientific research and military affairs. [0003] The spectrometer spectroscopic system can be divided into dispersion type and modulation type according to its spectroscopic principle. The dispersion type is divided into a prism dispersion spectroscopy system and a grating dispersion spectroscopy system, and the modulation type is mainly a Fourier transform system. In the dispersive spectral spectroscopic system, the dispersion rate of the prism is low, the...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/02
Inventor 卢启鹏何振磊丁海泉高洪智
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com