Reflection type optical device

Electric heating – Microwave heating – Tunnel furnace

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350620, 350319, 350163, 350574, 219121LQ, 219121LP, G02B 1706, G02B 510, B23K 2700

Patent

active

046857800

ABSTRACT:
A reflection type optical device comprises a convex integration mirror and a concave mirror. The convex integration mirror prepared by arranging side by side a plurality of plane segment mirrors, each preferably having a rectangular or square shape, on a material having convex outer surface so that a laser beam is divided and reflected by the integration mirror as reflected laser beams which are then condensed on a plurality of focal points lying on one plane, preferably at which a metal plate having a plurality of pin-holes substantially corresponding to the numbers of the focal points is located on the plane so that the focal points coincide with locations of the pin-holes, respectively.

REFERENCES:
patent: 2683394 (1954-07-01), Polanyi et al.
patent: 4315130 (1982-02-01), Inagaki et al.
patent: 4390243 (1983-06-01), Hammerschlag
patent: 4422893 (1983-12-01), Duchateau et al.
patent: 4475027 (1984-10-01), Pressley
patent: 4518232 (1985-05-01), Dagenais
"Raiza Kakou Gijutsu--(Laser Machining Technique)", Japanese Welding Institute, Aug. 1982, p. 116.
Arrabito, et al, "Laser Perforation Technique", IBM Technical Disclosure Bulletin, vol. 13, No. 10, Mar. 1971, p. 3098.
Stanley L. Ream, "A Convex Mirror Integrator", Laser Focus, vol. 15, No. 11, Nov. 1979, pp. 68-71.

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