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A REPLICA PROCESS FOR THE FABRICATION OF MULTIFACETED HIGH SPEED POLYGONAL SCANNERS

IP.com Disclosure Number: IPCOM000023347D
Original Publication Date: 1977-Jun-30
Included in the Prior Art Database: 2004-Mar-30
Document File: 2 page(s) / 344K

Publishing Venue

Xerox Disclosure Journal

Abstract

A high speed multifaceted polygonal scanner is fabricated in the preferred embodiment by employing a replica process which includes utilizing a master 20 and facet inserts 21 having a layer of gold 22 formed thereon. A preform 23 is provided which is coated with a layer of epoxy and then placed adjacent to inserts 21 and epoxy 24 being applied as needed to fill the gap between the preform 23 and the inserts 21. When the master is removed and inserts 21 separated from the preform 23 after the epoxy sets the separation layer of gold remains with the epoxy film due to the higher adhesion to that material forming an assembly 24 which comprises preform 23, epoxy layer 24 and the separated layer of gold. The assembly is thereafter cured and coated to complete the fabrication of the high speed multifaceted scanner. In an alternate embodiment, inserts 21 are not utilized, the facets being formed in the inner surface of the master itself, the inner surface being coated with gold. The master is then removed after the epoxy sets- The remaining fabrication steps are similar to that described hereinabove with reference to the preferred embodiment.

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Page 1 of 2

XEROX DiSCLOSURE JOURNAL

A REPLICA PROCESS FOR THE FAB~
RICATION OF MULTIFACETED HIGH
SPEED POLYGONAL SCANNERS
-

Tibor Fish

Number 3

Proposed Classification

U~S. Cl, 427/162
Into Cl. 3USd 5/08

FIG. IA

F/Gb /8

Volume 2 May/June 1977 93

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

Page 2 of 2

A REPLICA PROCESS FOR THE FABRICATION OF MULTIFACETED HIGH
SPEED POLYGONAL SCANNERS (Cont~d)

A high speed multifaceted polygonal scanner is fabricated in
the preferred embodiment by employing a replica process which
includes utilizing a master 20 and facet inserts 21 having a
layer of gold 22 formed thereon. A preform 23 is provided
which is coated with a layer of epoxy and then placed adjacent
to inserts 21 and epoxy 24 being applied as needed to fill the
gap between the preform 23 and the inserts 21. When the master
is removed and inserts 21 separated from the preform 23 after
the epoxy sets the separation layer of gold remains with the
epoxy film due to the higher adhesion to that material forming
an assembly 24 which comprises preform 23, epoxy layer 24 and
the separated layer of gold. The assembly is thereafter cured
and coated to complete the fabrication of the high speed
multifaceted scanner. In an alternate embodiment, inserts 21
are not utilized, the facets being formed in the inner surface
of the master itself, the inner surface being coated with
gold. The master is then removed after the epoxy sets~ The
remaining fabrication steps are similar to that described
hereinabove with...