Device for homogenizing a light beam

Details Device for homogenizing a light beam Device for homogenizing a light beam

1993-06-22

1995-05-09

Henry, Jon W.

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

359619, 359599, 362268, G02B 2712

Patent

active

054145597

ABSTRACT:
An optical device for homogenizing a light beam comprises a plurality of first lenses on which the light beam impinges from one side. At the side on which the light beam impinges the first lenses are convex, while they are prismatic at the opposite side at which the light beam emerges from the lenses. At least one convergent lens is disposed downstream of the lenses mentioned in the direction of the light beam. Instead of giving the first lenses a prismatic configuration it is also possible to make the first lenses plano-convex and arrange second lenses of plano-concave shape downstream of the first lenses in the direction of the light beam.

REFERENCES:
patent: 3670260 (1972-06-01), Koester et al.
patent: 4867514 (1989-09-01), Waldron
patent: 5098184 (1992-03-01), van den Brandt et al.
patent: 5237367 (1993-08-01), Kudo
patent: 5270859 (1993-12-01), Wirth

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