Optical: systems and elements – Mirror – Plural mirrors or reflecting surfaces
Patent
1997-09-24
1999-04-13
Shafer, Ricky D.
Optical: systems and elements
Mirror
Plural mirrors or reflecting surfaces
359900, 359616, 29558, 29DIG3, 29DIG16, 216 24, 216 48, 216 52, 216100, 430320, 430323, G02B 508, G02B 2708, B23P 1304, G03C 500
Patent
active
058943730
ABSTRACT:
A method for use in mass-producing, from a plane sheet of metal, a three-dimensional structure consisting of plane mirrors and plane structural members, said three-dimensional structure of a type in which each mirror or structural member has at least one edge that is collinear with an edge of another mirror or structural member, whereby said three-dimensional structure can be formed by bending the sheet of metal along various edges, the method including the steps of: producing masks bearing images defining the location of bending grooves, shallow grooves, separation grooves and holes for indexing pins, selecting a mask, applying a coating of photoresist to both sides of the sheet of metal, transferring the images on the selected mask to the coating of photoresist, removing those portions of the coating of photoresist to which the images were transferred, etching the sheet of metal where the portions of the coating of photoresist were removed, removing the remaining photoresist from the sheet of metal, and repeating the process using the next mask until all of the masks have been used. The two-dimensional part thus formed is then bent to form the desired three-dimensional structure, and a layer of a highly reflective material may finally be applied to those portions intended to serve as mirrors.
REFERENCES:
patent: 2452363 (1948-10-01), Flotron
patent: 2942768 (1960-06-01), McCall
patent: 3111878 (1963-11-01), Welles et al.
patent: 3860324 (1975-01-01), Gonzalez
patent: 4215194 (1980-07-01), Shepherd
patent: 4818962 (1989-04-01), Molaine
patent: 5298115 (1994-03-01), Leonard
Jaesent Inc.
McKown Daniel C.
Shafer Ricky D.
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