本文概述了用全息位相光栅干涉法将原眼科用的裂缝灯稍做改进便能测定人眼视觉锐度的新技术。
A method of measuring visual acuity with holographic grating is described. The measurement may be performed with a slightly modified conventional ophthalmoscope.
采用矢量理论处理了多台阶位相光栅的衍射问题。
A vector theory for diffraction of multi step phase grating is presented.
采用组合位相光栅技术，制作光强分布均匀、衍射效率较高的多光束分光元件。
A generated technique of balanced light intensity and high efficiency multiple ban splitting beams element using synthetical phase gratings.
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