一种用双斜复合反射全息扩大全息激光防护镜防护角的方法

A Method for increasing Spectacle Protective Angle Against Laser by Using Double-inclination Compound Holographic Mirrors

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０．５３μｍ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 inthis 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 isin the range 2.3 to 3.5 and the transmission of visible light is forger than 60% as theincidence angle varies from-30°to 27°.