Method and apparatus for laser beam homogenization

Details Method and apparatus for laser beam homogenization Method and apparatus for laser beam homogenization

1986-04-23

1988-12-27

Corbin, John K.

Electric heating

Microwave heating

Tunnel furnace

21912175, 350170, G02B 2716

Patent

active

047936940

ABSTRACT:
A light beam with non-uniform cross-sectional intensity profile is positioned into a central portion and two side lobes and the two side lobes are folded over the central portion to form a concentrated beam at a focus plane having substantially uniform intensity profile. The partitioning and folding may be done by mirror pairs disposed along the axis of the beam, or a trapezoidal prism.

REFERENCES:
patent: 2733632 (1956-02-01), Pall
patent: 2894427 (1959-07-01), Sabater
patent: 3941973 (1976-03-01), Luck, Jr. et al.
patent: 4315130 (1982-02-01), Inagaki et al.
patent: 4370026 (1983-01-01), Dubroeucq et al.
patent: 4475027 (1984-10-01), Pressley
patent: 4630274 (1986-12-01), Schafer

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