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High refractive index polarization splitting prism

A polarizing beam splitting prism, high refractive index technology, applied in polarizing elements, optics, optical elements, etc., can solve problems such as miniaturization design limitations, and achieve the effect of reducing the incidence angle

Inactive Publication Date: 2018-11-30
福建海创光电技术股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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Embodiment Construction

[0027] Such as figure 1 As shown, the high refractive index polarization beam splitter prism of the present invention comprises a pair of right-angle prisms 1, the slopes of the pair of right-angle prisms 1 are fixed to each other and one of the slopes is coated with a polarization beam-splitting film 2, and the pair of right-angle prisms 1 Molded for high emissivity materials.

[0028] As a preferred solution, the high-refractive-index material can be single-crystal silicon. Since the refractive index of single-crystal silicon is as high as about 3.42 at room temperature, single-crystal silicon is used for molding figure 1 After the right-angle prism with the structure shown, the polarization beam-splitting film of the polarization beam-splitting prism formed by it forms two beams of linearly polarized light with an incident angle ranging from 8° to 25°. In addition, see figure 2 , the incident angle range of the light incident from the air to the rectangular prism is 7°±4°...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30G02B1/11G02B27/28
CPCG02B1/11G02B5/3083G02B27/283
Inventor 凌吉武黄武达
Owner 福建海创光电技术股份有限公司
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