Multispectral light source based on prism structure

Abstract

The present invention discloses a multispectral light source based on a prism structure. The multispectral light source comprises: a LED or a laser, wherein LEDs or lasers with different wavelengths can be selected according to actual conditions; a color combination prism formed by gluing a plurality of rectangular prisms, wherein the surfaces of the rectangular prisms are plated with special films to allow light with certain wavelengths to penetrate, allow light with some lengths to be reflected and allow light with certain wavelengths to be uniformly emitted in one direction; a coupling lensconfigured to couple light emitted in one direction into an optical fiber probe so as to improve the utilization of the light; and the optical fiber probe configured to collect light and conduct thelight. The multispectral light source based on the prism structure employs the prism structure to perform special film plating process and allow light with different wavelengths to be coaxial and conjugated, to be emitted in one direction and to be collected. The light with different wavelengths can be individually controlled to switch. The light source of the prism structure is compact, small involume and high in luminous power.

Description

technical field [0001] The invention relates to the field of excitation light source design, in particular to a multi-spectrum light source system. More specifically, the present invention provides a light source system with high optical density, compact structure and glued polygon mirrors. Background technique [0002] At present, the traditional multi-spectral light source uses white LED as the light source, and then uses the rotating wheel loaded with optical filters. Filters of different wavelengths are installed on the rotating wheel. Which wavelength is required, the color wheel rotates to the specified position, then Light of the desired wavelength can be obtained. However, in this structure, each wavelength of light actually uses only a small part of white light, and the light of unnecessary wavelengths is shielded by the filter, and the light utilization rate is not high. [0003] The color combining prism is an optical element commonly used in projectors. Its fun...

AI Technical Summary

Problems solved by technology

In DNA detection, commonly used fluorescent dyes include FAM, HEX, TAMRA, ROX, CY5, etc. Some fluorescent dyes can use three primary colors of light as excitation light, while some fluorescent dyes need yellow light and orange light as excitation light, so usually The dichroic prism in the projector is also not applicable

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