Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1995-11-13
1998-07-28
Dzierzynski, Paul M.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 15, 359209, 359618, G02B 532, G02B 2608
Patent
active
057869111
ABSTRACT:
An optical scanning apparatus is equipped with a light source for outputting a scanning beam having a single fixed direction polarization component. A polarization control element is provided for changing the polarization direction of the scanning beam outputted from the light source. An optical element is provided for splitting the scanning beam outputted from the polarization control element into two linearly polarized beams that orthogonally cross each other. An image formation element is utilized for forming images with the two linearly polarized beams outputted from the optical element at independent locations on a scanning surface. A signal processing device is provided for controlling the light source and the polarization control element, and for switching on and off the two linearly polarized beams.
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patent: 5309535 (1994-05-01), Bergano
patent: 5532859 (1996-07-01), Guerin
Hasegawa Shin-ya
Tawa Fumihiro
Tomita Junji
Dzierzynski Paul M.
Fujitsu Limited
Schuberg Darren E.
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