A REPLICA PROCESS FOR THE FABRICATION OF MULTIFACETED HIGH SPEED POLYGONAL SCANNERS
Original Publication Date: 1977-Jun-30
Included in the Prior Art Database: 2004-Mar-30
Xerox Disclosure Journal
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.