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MULTI-MAGNIFICATION REPRODUCTION DEVICE USING GRADIENT INDEX LENS

IP.com Disclosure Number: IPCOM000025257D
Original Publication Date: 1984-Apr-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 66K

Publishing Venue

Xerox Disclosure Journal

Abstract

The figure illustrates, in side view, an optical system 10 capable of recording an image of document 12 as a latent image on the photosensitive surface 13 of a photosensitive drum 14. The document is placed on reciprocating platen 16 which moves the document through an exposure zone 18. Light from fluorescent lamps 20, 22 illuminate zone 18 and light reflected from zone 18 is transmitted to surface 13 via a gradient index lens assembly 24. This compact assembly is formed by assembling a plurality of gradient index fibers into a staggered two-row array. Depending upon the relative orientation of the fibers with respect to each other, the lens can translate erect images at a 1:l magnification or at some reduction or enlargement value.

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XEROX DISCLOSURE JOURNAL

MULTI-MAGNIFICATION REPRODUCTION Proposed Classification DEVICE USING GRADIENT INDEX LENS
S. Kepner Nester Joseph De Blaere

Volume 9 Number 2 March/April 1984 135

U.S. Cl. 355/1 Int. Cl. G03h 27/00

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MULTI-MAGNIFICATION REPRODUCTION DEVICE USING GRADIENT INDEX LENS (Cont'd)

The figure illustrates, in side view, an optical system 10 capable of recording an image of document 12 as a latent image on the photosensitive surface 13 of a photosensitive drum 14. The document is placed on reciprocating platen 16 which moves the document through an exposure zone 18. Light from fluorescent lamps 20, 22 illuminate zone 18 and light reflected from zone 18 is transmitted to surface 13 via a gradient index lens assembly 24. This compact assembly is formed by assembling a plurality of gradient index fibers into a staggered two-row array. Depending upon the relative orientation of the fibers with respect to each other, the lens can translate erect images at a 1:l magnification or at some reduction or enlargement value.

When the magnification value of the imaging system is to be changed, the assembly 24 can be removed either from the top or side of the machine. In order to adjust other machine functions to the new magnification each assembly 24 is encoded at one end thereof with a series of slots or detents corresponding to the particular magnification. When the assemb...