Light illumination device

Details Light illumination device Light illumination device

1983-02-22

1985-01-29

Walsh, Donald P.

Illumination

Light source and modifier

Plural serial lens elements or components

350167, 353 38, 353 98, 355 67, F21V 704

Patent

active

044970153

ABSTRACT:
A device for providing an illumination of an object includes first and second optical integrators disposed on an optical axis in spaced-apart relationship. Light rays emitted from a point light source formed by an elliptical reflector mirror having a light-emitting source are incident on the first optical integrator, which forms a plurality of secondary images of the point light source. The second optical integrator receives luminous fluxes emitted from the secondary light source images to form a multiplicity of secondary images of the secondary light source images formed by the first optical integrator. Luminous fluxes from the secondary images formed by the second optical integrator are superimposed by a condenser lens on the object for illuminating the latter with light beams of uniform intensity.

REFERENCES:
patent: 3267802 (1966-08-01), Noole
patent: 3296923 (1967-01-01), Miles
patent: 3941475 (1976-03-01), Sheets
patent: 4206494 (1980-06-01), Lovering

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