B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
88/16, 26/197
B29D 11/00 (2006.01) B29C 73/00 (2006.01) B29C 73/34 (2006.01) C03B 37/014 (2006.01) C03B 37/018 (2006.01)
Patent
CA 1094788
ABSTRACT OF THE DISCLOSURE A press-type mechanism by means of which reflective, mirror-forming layers in the form of coatings or conventional mirrors are transferred in pairs from right-angle master surfaces on prism-like blocks to right-angle mirror blanks, and the latter with the mirror-forming layers thereon are then delivered to the optical system of the shell of a binocular or like viewing instrument where they automatically become cemented in place so that the mirror-forming layers assume an accurate porro relationship. The existence of the epoxy or other cementitious material which is used for the cementing operation compensates for discrepancies in manu- facturing tolerances of either the replicated mirror blanks or the binocular shell.
312456
Beecher Willliam J.
Ridout & Maybee Llp
LandOfFree
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