瞄准具的核心部件是由一块无透镜傅里叶变换位相全息图和一块全息光束变换器组成的全息光学元件。

The critical part of this sight is a holographic optical elements combined with a lensless Fourier transform hologram and a holographic beam transformer.

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相乘器是由非线性元件组成，可以实现两个信号的相乘，完成频率变换的电路。

Multiplier is the circuit which is conformed of nonlinear elements and can make two signal multiplied so that it can implement frequency transformation.

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本文建立了偏振光的向量模型，给出了光弹实验中光学元件的变换矩阵。

In this paper, we establish the vector model of polarized light, give out the transformation matrices of the optical elements in photoelastic experiment.

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