Optical system for making an annular beam

Details Optical system for making an annular beam Optical system for making an annular beam

1985-02-01

1987-04-14

Henry, Jon W.

350631, G02B 1706, G02B 718, G02B 510

Patent

active

046573607

ABSTRACT:
An optical system for making an annular beam comprises a first member supporting a convex reflecting surface for reflecting an incident beam and having a first tapered surface, and a second member having a second tapered surface bearing against the first tapered surface and supporting a concave reflecting surface in a predetermined positional relation relative to the convex reflecting surface so as to reflect the beam reflected by the convex reflecting surface and make it into an annular beam.

REFERENCES:
patent: 2891437 (1959-06-01), Tripp

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