Astigmatism eliminating light beam shaping system based on prism pair and cylindrical mirror

A beam shaping, cylindrical mirror technology, applied in optics, optical components, instruments, etc., can solve the problem of uneven Gaussian beam, and achieve the effect of improving signal-to-noise ratio, high beam quality, and easy adjustment

Active Publication Date: 2014-06-25
PAVILION INTEGRATION CORP SUZHOU
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In view of the above-mentioned defects in the prior art, the purpose of the present invention is to propose an astigmatism-eliminating beam shaping system based on a prism pair and a cylindrical...

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  • Astigmatism eliminating light beam shaping system based on prism pair and cylindrical mirror
  • Astigmatism eliminating light beam shaping system based on prism pair and cylindrical mirror
  • Astigmatism eliminating light beam shaping system based on prism pair and cylindrical mirror

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Embodiment

[0028] A kind of astigmatism-eliminating beam shaping system based on prism pair and cylindrical mirror in this embodiment, such as figure 1 As shown, it includes a collimator lens 1 , a telescope system, a prism pair 4 , a beam displacement block 5 , a cylindrical mirror 6 and a converging lens 7 arranged sequentially on the same optical path. Wherein, the collimating lens 1 has positive refractive power, and the effective focal length is 2mm-5mm. After the beam is collimated by the collimator lens 1, it passes through a telescope system with a magnification of about 2 times. The telescope system includes a negative lens 2 with negative power and a positive lens 3 with positive power, and the light from both The focal ratio is about 1:2, so as to obtain the collimated light with the spot size of about 1.9mm in the slow axis direction and about 5.2mm in the fast axis direction, and the spot size distribution is as follows figure 2 shown. After the collimated light beam expa...

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Abstract

The invention discloses an astigmatism eliminating light beam shaping system based on a prism pair and a cylindrical mirror. The system comprises a collimating lens, the prism pair, a light beam displacement block and the cylindrical mirror, wherein the collimating lens, the prism pair, the light beam displacement block and the cylindrical mirror are sequentially arranged on the same light path. According to the astigmatism eliminating light beam shaping system based on the prism pair and the cylindrical mirror, light beams are shaped, the dimensional proportion of light spots obtained in the fast axis direction and the slow axis direction and converged through a converging lens is larger than 1:5, and meanwhile the astigmatism of the light beams and the astigmatism generated by the prism pair are eliminated. The system has the advantages of being high in light beam quality after the light beams are shaped, capable of improving the signal to noise ratio of an instrument, easy to adjust in the installation and manufacture processes and the like.

Description

technical field [0001] The invention belongs to the technical field of semiconductor laser beam shaping, in particular to an astigmatism-eliminating beam shaping system based on a prism pair and a cylindrical mirror. Background technique [0002] The light source and its optical system are the core parts of the flow cytometer, and the quality of the light source directly determines the performance index of the instrument. The laser can provide single-wavelength, high-intensity and high-stability light, and is an ideal light source for rapid analysis of weak fluorescence in cells. Generally, the sorting speed of the flow cytometer is greater than 5000 cells / second to ensure that the biological activity of the sorted cells is not affected. Due to the rapid flow of cells, the time for each cell to pass through the light area is only about one microsecond, and the strength of the fluorescent signal excited by the fluorescent substance carried by each cell is related to the time...

Claims

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Application Information

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IPC IPC(8): G02B27/09G02B27/00
Inventor 方慧季朝华罗宁一
Owner PAVILION INTEGRATION CORP SUZHOU
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