Browse Prior Art Database

BEAM ALIGNMENT DETECTOR

IP.com Disclosure Number: IPCOM000023471D
Original Publication Date: 1977-Dec-31
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 261K

Publishing Venue

Xerox Disclosure Journal

Abstract

A mechanism is provided for observing laser beam alignment with a start-of-scandetector chip 10, while the laser beam 12 is being scanned in a horizontal direction across a photo-conductor drum 14- The start-of-scandetector 10 is located on a target panel 16 along with the input ends of a plurality of fiber-optic bundles 18, 20, 22- 24, 26, 28 and 30. The input ends are in a vertical array with the input end 24 in the center of the array being horizontally aligned with the detector chip 10 whereby the scanned laser beam 12 will strike

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

BEAM ALIGNMENT DETECTOR Proposed~ou1un Classification

U~S~Cl, 356/172 IntO C1~ G01b 11/26

/8

/6

32/8 --~.

20 -

-~022

24-

-~26

28 ~

30

22 ~

24~

26 /A~~

28

I/
30 /0

FIG./

FIG. 2

A mechanism is provided for observing laser beam alignment
with a start~of~scandetector chip 10, while the laser beam 12
is being scanned in a horizontal direction across a photo-~
conductor drum 14~ The start~of~scandetector 10 is located
on a target panel 16 along with the input ends of a plurality
of fiber~optic bundles 18, 20, 22~ 24, 26, 28 and 30. The
input ends are in a vertical array with the input end 24 in the
center of the array being horizontally aligned with the
detector chip 10 whereby the scanned laser beam 12 will strike

Volume 2 Number 6 November/December 1977 121

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

Page 2 of 2

BEAM ALIGNMENT DETECTOR (Cont~d)

both the chip and the center input end when the beam is aligned
with the chip. If the beam is misaligned with the chip, the
beam will strike one of the other input ends depending upon if
the beam is too high or too low. The output ends of the fiber~
optic bundles are arranged on an observation display panel 32
to allow an observer to determine beam alignment or misalign~
ment depending upon which output end is illuminated.

                  XEROX DISCLOSURE JOURNAL
Volume 2 Number 6 November/December 1977
122

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