Light beam scanning device and light beam scanning lens

Details Light beam scanning device and light beam scanning lens Light beam scanning device and light beam scanning lens

1989-03-03

1990-10-16

Arnold, Bruce Y.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

350 65, 250235, G02B 2608

Patent

active

049629824

ABSTRACT:
Rays of light emitted from a light source are converged into a light beam by a converging optical system. The converged light beam is focused in one direction by a first focusing optical system into a linear image having a longitudinal direction corresponding to a main scanning direction in a light beam scanning device. A light deflector for deflecting the light beam has a deflecting surface disposed near a point where the linear image is focused by the first focusing optical system. The deflected light beam is focused as a light spot on a scanned surface by a light beam scanning lens serving as a second focusing optical system. The focused light spot scans a surface at a substantially constant speed. the light beam scanning lens comprises a single-element lens having a cylindrical surface facing the light deflector and a toric surface facing the surface which is scanned by the focussed light spot.

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Laser Optical System; "Laser Optical System of the IBM 3600 Printer", Sep. 1977.
"The working of Toric Lens Surfaces" Manufacturing Optician vol. 9, No. 10, Jul. 1956 pp. 528-534.

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