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A Dim Light Collector in Three-Dimensional Space

A three-dimensional space, weak light technology, applied in the direction of optics, instruments, condensers, etc., to achieve the effect of directional and efficient collection

Active Publication Date: 2016-05-18
杭州芬得检测技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem of directional and efficient collection of weak light such as fluorescence and Raman scattered light of trace substances excited by lasers in the prior art within the range of three-dimensional space, and provides a weak light collector in three-dimensional space

Method used

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  • A Dim Light Collector in Three-Dimensional Space
  • A Dim Light Collector in Three-Dimensional Space
  • A Dim Light Collector in Three-Dimensional Space

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of weak light collector in three-dimensional space, such as figure 1 As shown, it includes an ellipsoidal reflector 1, a spherical reflector 2 and a plane reflector 3, the ellipsoidal reflector 1 and the spherical reflector 2 are both concave reflectors, and the concave surfaces of the two are opposite to form a cavity; The center of circle of the spherical reflector 2 coincides with a focal point of the ellipse in the ellipsoidal reflector 1, and the radius of the spherical reflector 2 is equal to the semisine focal chord of the ellipse in the ellipsoidal reflector 1; the fluorescence or Raman emitted by the laser beam 5 The point light source formed by the scattered light is located at the center of the spherical reflector 2, and also at the focal point of the ellipsoidal reflector 1 close to the ellipsoidal reflector.

[0029] The plane reflector 3 is located in the spherical reflector 2, the center is located on the main axis of the ellipse in the ellipsoidal...

Embodiment 2

[0041] Such as Figure 7As shown, with embodiment 1, the difference is that the plane reflector 3 is replaced by a convex reflector 6, and the position of the convex reflector 6 on the main axis of the ellipse is adjusted to adjust the light energy entering the relay optical lens group 4 .

Embodiment 3

[0043] Such as Figure 8 , Figure 9 Shown, with embodiment 1 and embodiment 2, difference is that plane reflector 3 or convex reflector 6 are square, and area is 1 / 5 of the circle area at the positive focal chord of ellipse in ellipsoidal reflector 1, and can Move out of the concave surface of the spherical mirror 2.

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PUM

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Abstract

The invention relates to an optical device, and discloses a collector for weak light in a three-dimensional space. The collector comprises an ellipsoid reflector, a spherical reflector and a plane reflector, the ellipsoid reflector and the spherical reflector are both concave reflectors, the concave face of the ellipsoid reflector faces the concave face of the spherical reflector, and thus a cavity is formed. The circle center of the spherical reflector is superposed with one focus of the ellipse in the ellipsoid reflector, the reflecting face of the plane reflector is located at the central point of the connecting line of the two focuses of the ellipse of the ellipsoid reflector, and the area of the plane reflector is one fifth to one third that of the circle at the latus rectum of the ellipse in the ellipsoid reflector. The special structure is adopted in the collector for the weak light in the three-dimensional space, and thus weak light such as fluorescent light of trace materials excited by laser beams and raman scattering light can be effectively collected in the three-dimensional space range in an orientation mode.

Description

technical field [0001] The invention relates to an optical device, in particular to a weak light collector in three-dimensional space. Background technique [0002] Today, many biological laboratories, cytology laboratories or physical laboratories collect and spectrally detect weak light such as biofluorescence, cell fluorescence, and Raman scattered light to conduct related experiments on molecular properties. For spectral detection, it is first necessary to have a high collection rate for the fluorescence and Raman scattered light emitted by molecules, and to improve the signal-to-noise ratio as high as possible, especially for weak spectral lines such as fluorescence and Raman scattered light. One point is especially important. If some fluorescence and Raman scattered light itself is very weak, it cannot be observed with the naked eye, and the detected spectral lines are difficult to achieve the ideal signal-to-noise ratio, which will affect the experimental process. If...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B19/00G02B17/08G01N21/01
Inventor 欧旭锋王文鹏马辉张幼文
Owner 杭州芬得检测技术有限公司