提出了一种扩大全息激光防护镜防护角的方法:将两块条纹面与介质表面相倾斜的反射全息对称胶合,致使防护角与单片反射全息相比提高了一倍。实验结果表明0.53 μm的光在-30°至27°范围内入射时；双斜复合反射全息的光学密度在2.3至3.5之间变化,可见光透过率大于60％。

A method of making the double-inclination compound hologrsphic minors (DICHM) is proposed in order to increase protective angle of the spetacle against laser in this peper.The Protective angle is twice as large as that one of single holograhic minor. Experimental results show that the optical density of DICHM at the wavelength 0.53 μm is in the range 2.3 to 3.5 and the transmission of visible light is forger than 60% as the incidence angle varies from -30° to 27°.