Process for the most uniform illumination of a surface by a coll

Details Process for the most uniform illumination of a surface by a coll Process for the most uniform illumination of a surface by a coll

1981-11-24

1984-05-29

Nelson, Peter A.

Illumination

Light source and modifier

Laser type

362311, 362337, 362330, 362340, 362332, 362335, 350286, 350432, F21V 502

Patent

active

044518722

ABSTRACT:
A process for the most uniformly possible illumination of a surface by a limated beam of rays with arbitrary distribution of the beam intensities.
An equalization in intensity is achieved in a plane perpendicular to the direction of the beam in that, in the parallel beam path extending perpendicular to the beam direction a generally planoconvex beveled or faceted lens with congruent square or hexagonal surface elements is interposed at a distance from the surface which is to be illuminated corresponding to the focusing distance.

REFERENCES:
patent: 3541323 (1970-11-01), Stewart et al.
patent: 3620600 (1971-11-01), Lindberg
patent: 3710098 (1973-01-01), Walden
patent: 3716709 (1973-02-01), Tahavull
patent: 3763369 (1973-10-01), Lewin
patent: 3794829 (1974-02-01), Tahavull
patent: 3919543 (1975-11-01), Noren
patent: 4185891 (1980-01-01), Kaestner
patent: 4253735 (1981-03-01), Kawamura et al.
patent: 4358816 (1982-11-01), Soileau
"Das Mikroskop und Seine Anwendung," Leitz-Wetzlar 1969, pp. 8-9.

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