The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 24, 2017

Filed:

Aug. 03, 2015
Applicant:

Express Imaging Systems, Llc, Renton, WA (US);

Inventors:

William G. Reed, Seattle, WA (US);

Dale H. DeGraff, Brier, WA (US);

Richard Dolf, Seattle, WA (US);

Assignee:

Express Imaging Systems, LLC, Renton, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0854 (2013.01); H05B 33/0884 (2013.01); H05B 37/0218 (2013.01); H05B 37/0281 (2013.01); Y02B 20/42 (2013.01); Y02B 20/46 (2013.01); Y02B 20/72 (2013.01);
Abstract

An illumination system verifies whether one or more aspects of an output signal provided by a photosensitive transducer fall within a threshold of an expected value for the aspect. The aspect may include a sunrise time, a sunset time, a dawn time, a dusk time, a solar noon time, a solar midnight time, or similar. Upon verification the illumination system uses a microcontroller to adjust one or more output parameters of a solid-state light source responsive to the output signal provided by the photosensitive transducer. Where verification is not possible, the illumination system uses the microcontroller to adjust one or more output parameters of the solid-state light source responsive to a schedule.


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