The Fourier transform characteristics of off-axis hololens was discussed, which was made by using a dot light source and an inclined parallel light.

利用一点光源和一束倾斜平行光拍摄了一种离轴全息透镜，并对其傅里叶变换特性进行了分析。

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In this paper, Based on diffracted wave diffusion theory another analysis method about the condition keeping reconstructed image separate from backdrop light for off axis hologram is given.

本文从衍射波扩散出发，提出了另一种分析离轴型全息图再现象与背景光分离条件的方法。

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An off-axis fill light also technically isn't a true fill light, since it cannot lighten all shadows visible to the camera - just those from its direction.

一个离轴填充光也不是一个真正专门填充光，因为它不能减轻所有阴影可见的相机——只是那些从它的方向。

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