Apparatus for producing variable levels of uniform light flux

Details Apparatus for producing variable levels of uniform light flux Apparatus for producing variable levels of uniform light flux

1996-12-04

1999-11-23

Kim, Robert H.

Optics: measuring and testing

Photometers

With variable light aperture size

372101, 355 67, 356229, G01J 140

Patent

active

059910160

ABSTRACT:
Apparatus are disclosed that are operable to changes the intensity, per unit surface area, of an irradiation laser light flux. A typical apparatus comprises, on an optical axis, an irradiation laser light source, a stop defining an aperture, and an optical subsystem situated between the light source and the stop. The optical subsystem is operable to change the intensity of the irradiation laser light flux passing through the aperture by changing the diameter of the beam of irradiation laser light flux incident on the stop.

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