High refractive index polarization splitting prism

Abstract

The invention discloses a high refractive index polarization splitting prism. The high refractive index polarization splitting prism comprises a pair of rectangular prism bodies, the inclined surfacesof the pair of rectangular prism bodies are mutually fixed, and a polarization beam splitting film is arranged on one of the inclined surfaces in a plated mode. The pair of rectangular prism bodies is formed from high refractive index material, the two rectangular prism bodies of the polarization splitting prism are formed and made by using the high refractive index material, so that the purposethat the incident angle of a sharding beam splitting film can be reduced is achieved without changing the passing volume of the obtained polarization splitting prism, and thus the purpose that the product size is reduced can be achieved and the incident angle range of the polarization splitting prism can be increased. In addition, by overcoming existing technical difficulties and using a specificprocessing scheme to obtain the high refractive index polarization splitting prism, the obtained polarization splitting prism can meet the requirements of device miniaturization, especially can be used for small size devices, and an alternative is provided to a polarizing film.

Description

technical field [0001] The invention belongs to the field of optical devices, in particular to a high refractive index polarization beam splitter prism. Background technique [0002] As one of the commonly used components in optical devices, the polarization beam splitter is an optical element that can separate the horizontal polarization and vertical polarization of the incident light in a specific angle range, so it is widely used. However, with the market demand for integration The requirements for miniaturization and miniaturization are getting higher and higher, and the traditional polarizing beam splitter has been limited in miniaturization design, so it is necessary to innovate and improve it. Contents of the invention [0003] In view of the prior art, the object of the present invention is to provide a high refractive index polarization beam splitter prism with compact structure, small volume and suitable for batch processing and production. [0004] In order to ...

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Problems solved by technology

[0002] As one of the commonly used components in optical devices, the polarization beam splitter is an optical element that can separate the horizontal polarization and vertical polarization of the incident light in a specific angle range, so it is widely used. However, with the market demand for integration The requirements for miniaturization and miniaturization are getting higher and higher, and the traditional polarization beam splitter has been limited in miniaturization design, so it is necessary to innovate and improve it

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