LIGHT DEFLECTOR AND SCANNER

摘要

Light deflection and scanning apparatus employing a nonreciprocal optical device as a part of an optical circulator. The device has the property that if light is projected to it in one direction it is totally reflected and if it is projected in a second direction it is totally transmitted. By employing this device, optical energy may be coupled into and out of the circulator. The circulator is adjusted so that the optical energy follows a slightly off axis path with each revolution. Electro-optic means of a segmented type are provided in the path of the light in the circulator. The segments are individually controllable for selecting the location of exiting of the light from the circulator.