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.
Patent No.:
Date of Patent:
Dec. 23, 1986
Filed:
Jul. 20, 1984
William F Jacobsen, Blaine, MN (US);
Zoltan Zansky, Willowdale, CA;
Honeywell Inc., Minneapolis, MN (US);
Abstract
An illumination sensing and light level control system for an area of interest includes a light collector to collect and focus light from a relatively large portion of the area of interest, a light-sensitive array including a matrix of light-intensity sensitive elements for receiving light collected and focused by the collector, a multiplexer and signal conditioner for processing and digitizing the light intensity values, a microprocessor for processing the digitized data and controlling the operation and control functions of the system, and a controller for controlling the light level of one or more lamps or sets of lamps associated with the area of interest. A calibration device is used to generate the desired matrix values for comparison.