Optical scanning system

Details Optical scanning system Optical scanning system

G - Physics

02

B

314/27, 314/28,

G02B 27/12 (2006.01) G03B 27/52 (2006.01) G03G 15/041 (2006.01)

Patent

CA 1037547

Abstract of the Disclosure A multiple carriage optical scanning system scans a stationary planar object onto a moving photoreceptive surface at a selected one of a plurality of magnification settings and locates the image at a fixed position with respect to the photoreceptive surface regardless of the magnification selected. The scanning system includes a reciprocating lens element and a reciprocating light source, the velocities of which in the scanning direction are controlled in accordance with the magnifi- cation selected. The combined motion of a lens carriage supported on guide rails and the guide rails mounted on a second carriage effects the positioning of the lens along three coordinate directions to provide the desired magnification ratio and to ensure proper placement of the image with respect to the photoreceptive surface. The lens carriage is there- after driven by a rotating drive arm which contact with the lens carriage at a radial position on the drive arm which determines the lens velocity. -1-

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