Goniophotometer

Details Goniophotometer Goniophotometer

2007-08-14

2007-08-14

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

Lamp beam direction or pattern

C356S214000, C356S218000, C356S313000, C356S331000, C901S002000, C901S015000, C901S028000, C901S047000

Reexamination Certificate

active

11184816

ABSTRACT:
A hemispherical goniophotometer is disclosed, in which two pivoting arms are articulated on a revolving rotating arm and are each fitted with a measurement head. The geometry of the arrangement is chosen such that the measurement heads can move along the envelope surface of a hemisphere during rotating of the rotating arm through 360° and pivoting of the pivoting arms through 180°.

REFERENCES:
patent: 5253036 (1993-10-01), Ashdown
patent: 5949534 (1999-09-01), Guttman et al.
patent: 3347327 (1985-07-01), None
patent: 2187384 (2003-06-01), None
www.ptb.de/de/org/4/41/412/kalibrierung.htm, Dec. 1999.
Abstract, JP 2001-255270 (Sep. 21, 2001).

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