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Spectrograph, monochromator, diffraction grating and manufacturing method thereof, and female die manufacturing method

A technology of diffraction grating and manufacturing method, which is applied in the direction of diffraction grating, spectrum generation by using diffraction elements, spectrum generation, etc., can solve the problems of multi-optical components and spectrometer 100 with complicated structure and reduced volume, so as to simplify structure and assembly, and promote Effects of size reduction and reduction in the number of optical components

Active Publication Date: 2017-03-08
OTO PHOTONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned spectrometer 100 uses a flat grating 140, which requires a collimating mirror 130 and a focusing mirror 150 to accurately split and focus light
Therefore, the spectrometer 100 requires more optical components, resulting in a complex structure of the spectrometer 100 and is not conducive to reducing the volume

Method used

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  • Spectrograph, monochromator, diffraction grating and manufacturing method thereof, and female die manufacturing method
  • Spectrograph, monochromator, diffraction grating and manufacturing method thereof, and female die manufacturing method
  • Spectrograph, monochromator, diffraction grating and manufacturing method thereof, and female die manufacturing method

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Embodiment Construction

[0061] Figure 2A It is a schematic diagram of the optical path of a spectrometer according to an embodiment of the present invention. see Figure 2A , the spectrometer 200 includes a diffraction grating 210 , an input unit 220 and an optical sensor 230 . The input part 220 can receive the optical signal 20 , and the wavelength range of the optical signal 20 can be between infrared light (Infrared, IR) and ultraviolet light (Ultraviolet, UV). The input part 220 can be a slit, such as Figure 2A shown. However, the input part 220 can also be the end of an optical fiber, or be made of an optical fiber. For example, the input unit 220 may be made of a fiber core. In addition, the input part 220 may also be an assembly including an optical fiber and a slit.

[0062] The diffraction grating 210 has a diffraction surface 212 capable of separating the optical signal 20 into a plurality of spectral components 21 , 22 and 23 , wherein the spectral components 21 , 22 and 23 have d...

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Abstract

The invention discloses a diffraction grating which comprises a substrate and multiple diffraction structures. The diffraction structures are connected with one another and formed on the substrate. The diffraction structures, which are columnar, are arranged along a concave cylindrical surface. The axis of each diffraction structure extends along the generatrix of the concave cylindrical surface. Each diffraction structure is sectioned along a direction perpendicular to the axis thereof to get a section profile. The vertexes of the connected diffraction structures in the section profile form a reference curve, which is provided with multiple first inflection points. The diffraction structures are used for separating an optical signal into multiple spectral components, and the diffraction structures focus the spectral components in a focal plane.

Description

[0001] 【Technical field】 [0002] The present invention relates to an optical measuring device and its optical components, a manufacturing method of the optical component, and a master mold manufacturing method of a remade optical component, especially a spectrometer, a single light meter, a diffraction grating, and a diffraction grating. The method and the master mold manufacturing method for replicating the diffraction grating. [0003] 【Background technique】 [0004] The spectrometer is a non-destructive detection instrument, which mainly uses the principle of light reflection and the difference in the reflection, absorption or penetration of different frequency bands of light by the composition and structure of the material. Arranged according to the wavelength, different substances will show individual The spectrum of the characteristic, and then obtain the knowledge of the material structure of the atom, molecule, etc., the energy level structure, chemical bond properties...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/18G02B5/18
Inventor 洪健翔叶展良
Owner OTO PHOTONICS
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