Browse Prior Art Database

FLYING SPOT FLAT FIELD SCANNER

IP.com Disclosure Number: IPCOM000022794D
Original Publication Date: 1976-Feb-29
Included in the Prior Art Database: 2004-Mar-26
Document File: 2 page(s) / 229K

Publishing Venue

Xerox Disclosure Journal

Abstract

A laser scanning system is provided where a document 30 is placed on a platen 32. Motor 52 rotates the worm shafts 40 and 48 to move the carrier 26 and mirror 22, The beam 12 from the laser is scanned across the length of beam splitter 20 and the mirrors 22 and 28 and thereby across the width of the document 30 to effect a scan in the UX~

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XEROX DISCLOSURE JOURNAL

FLYING SPOT FLAT FIELD SCANNER ProposedGary K. Starkweather Classification

U.S. Cl, 331/94,5

mt. Cl, HOls 3/00

A laser scanning system is provided where a document 30 is
placed on a platen 32. Motor 52 rotates the worm shafts

40 and 48 to move the carrier 26 and mirror 22, The beam
12 from the laser is scanned across the length of beam
splitter 20 and the mirrors 22 and 28 and thereby across
the width of the document 30 to effect a scan in the UX~

direction as the mirror 28 traverses the length of the
document 30 to effect a scan of successive increments
thereof in the fly" direction. The mirror 22 moves at one-~
half the rate of the carrier 26 to maintain the optical
conjugates constant. The diffuse reflections from the
document are directed by mirrors 28 and 22 to and through

the beam splitter 20 as beam 12C to the photomultiplier 34
where the differences in intensity, representing background

and image areas, are converted to electrical information
signals which may be either stored or transmitted to a
printer,

44

34

~E::::4&

~4 ~6

Volume 1 Number 2 February 1976 79

[This page contains 1 picture or other non-text object]

Page 2 of 2

9L61 Ann.~c[ed ~ teqwnN i emnio~

t~ aansoiosma xouax 08

[This page contains 1 picture or other non-text object]