Illumination – Plural light sources – With support
Reexamination Certificate
2008-04-23
2010-02-02
Sember, Thomas M (Department: 2885)
Illumination
Plural light sources
With support
C362S286000, C362S419000, C362S249090
Reexamination Certificate
active
07654693
ABSTRACT:
A lighting fixture having at least one internal processor and at least one fixed element to which controllable moving elements are rotatably fastened, one moving element having at least one light source that generates a beam of light. Information concerning positions of moving components in a lighting fixture is automatically achieved. Correct position indication at start up is obtained without moving the components to their end stops for finding set points for step motors by the provision of at least one absolute encoding device, which encoding device indicates the angular movement of a first input axel in relation to the encoding device, which absolute encoding device has a gearbox with a second internal axel, which first input axle drives a first toothed timing wheel, intermeshing with a second toothed timing wheel that rotates the second axel with a angular velocity different from the angular velocity of the first input axle.
REFERENCES:
patent: 557371 (1896-03-01), Ferguson
patent: 4353110 (1982-10-01), Ellis
patent: 4716344 (1987-12-01), Newell et al.
patent: 5140507 (1992-08-01), Harwood
patent: 5842768 (1998-12-01), Menke
patent: 6764198 (2004-07-01), Chang
patent: 6902302 (2005-06-01), Foster
patent: 7080928 (2006-07-01), Barnhart et al.
patent: 7121706 (2006-10-01), Takiguchi et al.
patent: 2 417 842 (2006-03-01), None
patent: 2006/075297 (2006-07-01), None
patent: 2008/013372 (2008-01-01), None
Rasmussen Niels Joergen
Rasmussen Torben Kaas
Martin Professional A/S
Mlotkowski Roberts
Safran David S.
Safran & Cole P.C.
Sember Thomas M
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