Light scanning apparatus

Details Light scanning apparatus Light scanning apparatus

1992-11-30

1994-05-31

Ben, Loha

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359215, 359218, 359221, 346108, G02B 2608

Patent

active

053174445

ABSTRACT:
An optical scanning apparatus of the present invention is for optically scanning a medium. In the optical scanning apparatus, a light source receives image information and emits light beam modulated in accordance with the image information. A single optically imaging system is positioned in a single location for receiving the light beam from the light source and for focusing the light beam to be focused on the medium. A reflective mirror formed with a single reflective surface is provided for reflecting the light beam from the optically imaging system to direct the light beam to the medium. The reflective mirror is rotated by a motor at a fixed speed to allow the reflective surface to scan the light beam on the medium in a scanning sweep. Surfaces other than the reflective surface of the reflective mirror is prevented from directing the light beam to be focused on the medium.

REFERENCES:
patent: 3719780 (1973-03-01), Gazard et al.
patent: 4274101 (1981-06-01), Kataoka et al.
patent: 4731623 (1988-03-01), Oda et al.
patent: 4915465 (1990-04-01), Sugiura
patent: 4982205 (1991-01-01), Hasegawa

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