Optical system for providing visual aid for proper...

Details Optical system for providing visual aid for proper... Optical system for providing visual aid for proper...

G - Physics

03

B

314/27, 95/33

G03B 27/32 (2006.01) G03B 27/34 (2006.01) G03B 27/62 (2006.01) G03G 15/041 (2006.01)

Patent

CA 1131967

-1- ABSTRACT OF THE DISCLOSURE In a full-frame, copying system, translucent re- gistration guides along the edges of a platen area provide an operator with` an indication of which portion of a docu- ment overlying the platen will be copied onto selected copy paper at the particular magnification ratio selected. Illumination sources located on the image side of a projec- tion lens create line images which are projected through the lens to illuminate appropriate registration guides cor- responding with the particular magnification ratio.

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