Feedback control apparatus for a light integrating cavity

Details Feedback control apparatus for a light integrating cavity Feedback control apparatus for a light integrating cavity

1996-05-30

1997-07-22

Rosenberger, Richard A.

Optics: measuring and testing

Photometers

Integrating spheres

250205, 250228, G01J 142

Patent

active

056508433

ABSTRACT:
Feedback control of a spatially distributed light source for a light integrating cavity in which the light acceptance angle of the light feedback device is expanded by means of a light diffuser at the feedback port so as to better average the localized light intensity variations on the internal surface area of the cavity caused by arc wander in the spatially distributed light source.

REFERENCES:
patent: 4321630 (1982-03-01), Kramer
patent: 4725893 (1988-02-01), Granger
patent: 4810937 (1989-03-01), Havel
patent: 4868383 (1989-09-01), Kurtz et al.
patent: 5018019 (1991-05-01), Moore
patent: 5164586 (1992-11-01), Hohberg et al.
patent: 5164844 (1992-11-01), Granger
patent: 5241459 (1993-08-01), Kaplan et al.

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