Optical element having the function of changing the cross-sectio

Details Optical element having the function of changing the cross-sectio Optical element having the function of changing the cross-sectio

1984-03-07

1987-02-10

Punter, William H.

G02B 2714

Patent

active

046419209

ABSTRACT:
An optical element having the function of changing the cross-sectional intensity distribution of an incident light beam is comprised of a plurality of prisms. The optical element spatially combines a light beam having been amplitude-divided by an amplitude-dividing mirror provided on the joined surface of the prisms and a light beam having been totally reflected by a total-reflection mirror provided on the outermost one of the prisms to thereby change the cross-sectional intensity distribution of the light beam entering the optical element.

REFERENCES:
patent: 2189298 (1940-02-01), Rantsch
patent: 2267948 (1941-12-01), Rantsch
patent: 3230851 (1966-01-01), Reymond
patent: 3419898 (1968-12-01), Baldwin et al.
patent: 3517327 (1970-06-01), Treuthart
patent: 4281904 (1981-04-01), Sprague et al.
patent: 4370026 (1983-01-01), Dubroeucq

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