Light meter apparatus and system

Optics: measuring and testing – Range or remote distance finding – With photodetection

Reexamination Certificate

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Details

C356S003010, C356S003150, C356S004010, C356S004100

Reexamination Certificate

active

07876421

ABSTRACT:
A light meter for measuring photometric quantities includes a telephotometer having a photo detector to receive light energy entering the telephotometer. A light metering valve, for the purpose of providing a variable field of view, is located in the body of the telephotometer generally at the focal plane of the objective lens of the telephotometer. A controller, which includes a digital processor in communication with the photo detector will process information from the photo detector and from a range finder included in the system to output light intensity of a target light source.

REFERENCES:
patent: 2929295 (1960-03-01), Vos
patent: 3087379 (1963-04-01), Rogers
patent: 3582666 (1971-06-01), Geiger
patent: 3634694 (1972-01-01), Hardesty
patent: 3843267 (1974-10-01), Vital
patent: 3843835 (1974-10-01), Mosca et al.
patent: 4737029 (1988-04-01), Yabusaki
patent: 5185637 (1993-02-01), Lewin
patent: 5323226 (1994-06-01), Schreder
patent: 5442716 (1995-08-01), Otsu
patent: 6088085 (2000-07-01), Wetteborn
patent: 2003/0103769 (2003-06-01), Ohkado
patent: 2004/0105091 (2004-06-01), Zaidi et al.
patent: 2005/0110976 (2005-05-01), LaBelle
patent: 2006/0066957 (2006-03-01), Fukui
patent: 2372314 (2000-10-01), None
Photo Research, Inc. 2004, PR-880 Automated Filter, Photometer/Colorimeter.
TruPuLse 200 and 360 Laser Rangefinders. Laser Technology, Inc. Centennial, Co. 80112.
London Electronics Limited, BCS input remote/slave displays.
Optics for You, poti-logic RS400 Industrial Laser Range Finder w/ RE 22 Serial computer Interface Port.

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