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A SYSTEM FOR PROVIDING HIGH SPEED MULTI~FACETED SCANNERS BY INJECTION MOLDING

IP.com Disclosure Number: IPCOM000023463D
Original Publication Date: 1977-Oct-31
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 256K

Publishing Venue

Xerox Disclosure Journal

Abstract

A high speed mu1ti-faceted polygonal scanner is provided by injection molding. In a first embodiment shown in Figure 1, an aluminum disc 30 has an acrylic ring 31 molded thereto by forcing preheated acrylic in a molten state into a die cavity having the required facet geometry. In a second embodiment shown in Figure 2, an acrylic ring 40 having facets formed thereon is molded separately and then cemented onto aluminum disc 30 utilizing cement 41.

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XEROX DISCLOSURE JOURNAL

A SYSTEM FOR PROVIDING HIGH
SPEED MULTI~FACETED SCANNERS
BY INJECTION MOLDING
Tibor Fish

Proposed Classification
U~S~Cl, 350/7
mt. Cl. G02b 27/17

-

3332 3/ 30

40 4/ 30

2

1/

H

F/G./

I-

A high speed mu1ti~faceted polygonal scanner is provided by
injection molding. In a first embodiment shown in Figure 1,
an aluminum disc 30 has an acrylic ring 31 molded thereto by
forcing preheated acrylic in a molten state into a die cavity
having the required facet geometry. In a second embodiment
shown in Figure 2, an acrylic ring 40 having facets formed
thereon is molded separately and then cemented onto aluminum
disc 30 utilizing cement 41.

In both embodiments, the acrylic ring is coated with magnesium
fluoride adhesive 32, aluminum 33 and finished with a silicon
monoxide protective coating 34e Preferably, the aluminum
disc 30 comprises an aluminum alloy designated as 7075~T651.

34 33 32

F/G~2

Volume 2 Number 5 September/October 1977 91

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                 XEROX DISCLOSURE JOURNAL
92 Volume 2 Number 5 September/October 1977

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