HOLOGRAPHIC SCANNER FOR RECONSTRUCTING A SCANNING LIGHT SPOT INSENSITIVE TO A MECHANICAL WOBBLE

摘要

ABSTRACT OF THE DISCLOSUREA holographic spinner reconstructs a light spotto rapidly scan a narrow line on a suitable "write" surfaceto generate an image. The geometry of the holographic spinnerwith respect to the holographic reconstruction light beamis such that the angle of incidence of a reconstruction beamis equal to the first order diffraction angle thereby makingthe spinner invariant with respect to mechanically causedwobble.