REFLECTION TYPE VARIABLE LIGHT POLARISCOPE AND OPTICAL DEVICE USING THE POLARISCOPE

摘要

A reflection type variable light polariscope, comprising a reflection type variable light reflective element (34) so formed as to deflect light by utilizing a variation in reflectance of an electro-optic element (33) and to reflect the light by using a reflective element (4), whereby optical devices such as a variable light attenuator, a light shutter, and a light switch higher in response, lower in insert loss, and smaller in size can be realized.