Hologram generation by horizontal scanning of a high-speed spatial light modulator.
In order to increase the image size and the viewing zone angle of a hologram, a high-speed spatial light modulator (SLM) is imaged as a vertically long image by an anamorphic imaging system, and this image is scanned horizontally by a galvano scanner. The reduction in horizontal pixel pitch of the SLM provides a wide viewing zone angle. The increased image height and horizontal scanning increased the image size. We demonstrated the generation of a hologram having a 15 degrees horizontal viewing zone angle and an image size of 3.4 inches with a frame rate of 60 Hz using a digital micromirror device with a frame rate of 13.333 kHz as a high-speed SLM.
Takaki
Yasuhiro
Y
Institute of Symbiotic Science and Technology, Tokyo University of Agriculture and Technology,2-24-16, Naka-cho, Koganei, Tokyo 184-8588, Japan. ytakaki@cc.tuat.ac.jp
Okada
Naoya
N