Continuous spectrum light source

A fiber optic light source and spectrum technology, applied in the field of spectrum analysis, to achieve great flexibility, improve the detection signal-to-noise ratio and dynamic range, and simplify the detector circuit.

Inactive Publication Date: 2012-02-15
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Can be widely used in various spectral detection

Method used

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  • Continuous spectrum light source
  • Continuous spectrum light source
  • Continuous spectrum light source

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Embodiment Construction

[0021] The technical solutions of the present invention will be further described below with reference to the accompanying drawings.

[0022] like image 3 As shown, the continuous spectrum light source includes a regulated power supply 1 , a light source 2 (such as a halogen tungsten lamp), an optical fiber light source group 3 , a coupling lens group 4 and an output optical fiber 5 . The light energy of different wavelength ranges emitted by light source 2 is coupled into each wavelength range of fiber light source group 3 ( , ) corresponds to the spectral channel, and is derived from the fiber bundle of the fiber light source group 3, and then enters the output fiber 5 through the coupling lens group 4. By adjusting the coupling efficiency between each spectral channel of the optical fiber light source group 3 and the light source 2, the light energy finally entering each wavelength range of the output fiber 5 is controlled, so as to achieve uniform output of light ener...

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Abstract

The invention relates to a continuous spectrum light source comprising a stabilized voltage power supply, a light source, an optical fiber light source set, an optical fiber coupling lens set, and an output optical fiber. The optical fiber light source set is composed of N light spectrum channels with different wavelength coverage. Each light spectrum channel comprises orderly arranged component of a collimating lens, a band pass filter, a coupling lens, and an optical fiber. Light energies from the light source pass the collimating lens, such that parallel lights are formed; when the parallel lights pass the band pass filter, light energies with wavelengths within a range of (lambda1<(j)>, lambda2<(j)>) enter the optical fiber through the coupling lens. Optical fibers of the N light spectrum channels form an optical fiber bundle. The light energies are coupled into the output optical fiber through the optical fiber coupling lens set. Through the adjustment of light energy distribution in each light spectrum channel of the optical fiber light source set, the balance of the light energies output by the output optical fiber within an entire spectral range can be realized, such that a continuous spectrum light source is composed. Or, according to a spectrum energy distribution requirement, optical coupling efficiency of each spectrum channel of the optical fiber light source set can be adjusted, such that light energies can be arbitrarily distributed according to wavelengths.

Description

technical field [0001] The invention belongs to the technical field of spectrum analysis, and in particular relates to a continuous spectrum light source, which can meet the requirements of various spectrum detection, especially the application of a spectrum analysis instrument using a photoelectric detection array as a spectrum detection element in spectrum detection, and realizes Light energy balance over the full spectral range, improving signal-to-noise ratio and detection dynamic range over the entire spectral range. Or according to the requirements of spectral energy distribution, the arbitrary distribution of light energy with wavelength can be realized. Background technique [0002] In the entire wavelength range of the existing spectral detection light source, the light energy corresponding to different wavelengths fluctuates greatly, and it is difficult to achieve the consistency (or approximate consistency) of the light energy of different wavelengths. When such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01G01N21/25G02B6/32G02B6/293
Inventor 陈刚刘念慈温中泉温志渝
Owner CHONGQING UNIV
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