Intensity adjustable optical system

Details Intensity adjustable optical system Intensity adjustable optical system

1993-04-30

1995-07-11

Epps, Georgia Y.

Optical: systems and elements

Light control by opaque element or medium movable in or...

With glare or flicker elimination

354385, 354389, G02B 2602

Patent

active

054326338

ABSTRACT:
Herein is described a process for the light-intensity balancing of an optical system, and a device for carrying out the process. The optical system consists of a light source, a lens installed in the beam path, and optoelectrical components that sends to an amplifier a signal that is proportional to the local light intensity. The intensity balancing is carried out by measuring and determining the intensity distribution in a plane. This local distribution is modified at the relevant points for the local distribution according to the optical properties of the lens until a uniform intensity distribution in the plane is obtained. The lens is attained by radiating its surface or internal structures with a laser.

REFERENCES:
patent: 4414749 (1983-11-01), Johannsmeier
patent: 4812635 (1989-03-01), Kaufmann et al.

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