Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1992-01-16
1994-03-29
Arnold, Bruce Y.
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359232, 359833, 359893, 250236, G02B 2610
Patent
active
052990508
ABSTRACT:
A scanning optical system for preventing ghosting is provided wherein a laser beam emitted by a laser light source is first brought to an image in an auxiliary scanning plane, and reflected by a slit mirror provided in a prism block. The laser beam is incident on the scanning deflector along the optical axis of the scanning lens, and a screen is provided for obstructing ghosting in the vicinity of the scanning surface. Further, at least one side of the prism block on which the light is incident from which the light emerges is curved, or one side of the prism block is treated to prevent reflection. Further, the screen is disposed between the laser light source and the slit mirror so as to obstruct the part of the light beam incident on the mirror which is reflected by the mirror after being reflected by the scanning deflector.
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Aoyama Masaaki
Morimoto Akira
Arnold Bruce Y.
Asahi Kogaku Kogyo Kabushiki Kaisha
Phan James
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