Short-distance optical amplifier module, short-distance optical amplification method and short-distance optical amplification system

Abstract

The invention discloses a short-distance optical amplifier module, a short-distance optical amplification method and a short-distance optical amplification system. The short-distance optical amplifier module comprises a reflective polarizer, a first phase retarder, an imaging lens, a second phase retarder and an absorptive polarizer, wherein the reflective polarizer is arranged in the transmission path of an optical image. The first phase retarder is arranged in the transmission path of the optical image which penetrates through the reflective retarder. The imaging lens is arranged in the transmission path of the optical image. The second phase retarder is used for converting the polarization direction of the optical image from an elliptical or circular polarization direction to a second linear polarization direction. The absorptive polarizer is arranged on one side, which is far from the imaging lens, of the second phase retarder. The short-distance optical amplifier module makes light be reflected and refract. Because no light loss exists in reflection, light loss of refracted light because of dispersion caused by a manner in which refraction and reflection are successively performed in an existing short-distance optical amplifier module, and light quality reduction are prevented.

Description

technical field [0001] The invention relates to the technical field of optical module design, in particular to a short-distance optical amplification module, an amplification method and an amplification system. Background technique [0002] The structure of the existing short-distance optical amplification module is as follows: figure 2 As shown, it includes a display screen, a first phase retarder, a partially transmissive and partially reflective mirror, a second phase retarder and a reflective polarizer. In this module, in order to amplify the optical path, the light from the first phase retarder side passes through the partially transmissive and partially reflective curved lens, and then transmits first, and then emits through the reflective polarizer, which will cause the light to be dispersed during transmission. The dispersed light will cause light loss, which will affect the quality of light reflection imaging, making it difficult to meet the high-definition quality...

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Problems solved by technology

[0003] Provided in the embodiment of the present invention to solve the problem that the existing short-distance optical amplification module affects the imaging quality of the optical image due to dispersion during light propagation

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