Patent Number: 6,297,577

Title: Light controlling apparatus

Abstract: A piezo-electric actuator is rigidly mounted for a portion of one surfaceand provided with opposing electrodes for application of a bias. Becausethe mounted portion is constrained from deformation, the piezo-electricactuator deforms in a bending manner upon application of a bias. Theactuator is provided with a mirror surface for selective reflection of anincident light beam in accordance with a bending deformation of theactuator. The actuator can also modulate a light beam by selectablydeflecting into the light path to thereby block the light beam.

Inventors: Hotomi; Hideo (Toyonaka, JP), Masaki; Kenji (Nagaokakyo, JP), Higashino; Kusunoki (Osaka, JP)


International Classification:

Expiration Date: 10/02/2013