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. 20, 1994
Filed:
Nov. 13, 1992
Applicant:
Inventors:
J Stephen Doty, Jonesboro, AR (US);
Richard Baxter, Jr, Appleton, WI (US);
Robert W Colburn, Green Bay, WI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ; G01J / ;
U.S. Cl.
CPC ...
250372 ; 2504941 ;
Abstract
An apparatus and method are provided for measuring and controlling the amount of UV light exposure for tanning purposes. The UV light is measured using a photo diode to produce an analog signal with a strength corresponding to the intensity of the UV light emitted. A microprocessor converts the signal to a digital quantity and integrates the digital quantity over time to determine the accumulated amount of UV light emitted. The quantity of instantaneous or accumulated UV light emitted can be displayed. The accumulated UV light exposure can also be used to control the operation of the UV light bulbs.