Optical beam scanning apparatus

Details Optical beam scanning apparatus Optical beam scanning apparatus

1991-09-10

1993-05-25

Ben, Loha

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359201, 359188, 359220, 358493, G02B 2608

Patent

active

052145280

ABSTRACT:
Disclosed are optical beam scanning apparatus and method of the internal drum scanning system, in which optical beams from a light source are made incident on optical beam rotating means such as a trapezoidal prism, and outgoing beams are focussed on the inner face of a cylinder through rotary optical means such as a rotary reflecting element. In the scanning apparatus and method of the present invention, by rotating the trapezoidal prism on the same revolution axis as that of the rotary reflecting element at a revolution speed corresponding to 1/2 of the revolution speed of the rotary reflecting element, beams going out from the trapezoidal prism can be rotated at the same speed as the revolution speed of the rotary reflecting element. According to the present invention having the above structure, even when a plurality of beams are used, crossing of the beams on the inner face of the cylinder can be prevented, and multiple beam scanning becomes possible and recording can be performed at a high speed.

REFERENCES:
patent: 3532037 (1970-10-01), Neuilly et al.
patent: 3651256 (1972-03-01), Sherman et al.
patent: 3823276 (1974-07-01), Maslowski et al.
patent: 3924937 (1975-12-01), Munroe et al.
patent: 4475787 (1984-10-01), Starkweather
patent: 4550985 (1985-11-01), Hayashi
patent: 4815067 (1989-03-01), Webster et al.
patent: 4853709 (1989-08-01), Stein et al.
patent: 4948228 (1990-08-01), Keens
patent: 4978200 (1990-12-01), Dean
patent: 5011245 (1991-04-01), Gibbs
patent: 5015064 (1991-05-01), Detig et al.
patent: 5026133 (1991-06-01), Roddy et al.
Patent Abstracts of Japan, vol. 13424; Sep. 21, 1989 JP-1-155371; Jun. 19, 1989.

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