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:
Oct. 13, 2015
Filed:
Aug. 09, 2012
Ammar Burayez, Silverado, CA (US);
Ivan Ivanov, Fountain Valley, CA (US);
William A. Hunt, Foothill Ranch, CA (US);
John W. Matthews, Newport Beach, CA (US);
Ammar Burayez, Silverado, CA (US);
Ivan Ivanov, Fountain Valley, CA (US);
William A. Hunt, Foothill Ranch, CA (US);
John W. Matthews, Newport Beach, CA (US);
SureFire, LLC, Fountain Valley, CA (US);
Abstract
Various techniques are provided for implementing a lighting device variable control using a variable inductor. In various examples, the variable control may be implemented with a plurality of continuous or stepped settings. The variable control may be adjusted by a user-actuated movement of a part of the lighting device, such as the depression of a tail cap or another appropriate physical control to change the inductance of the variable inductor. An oscillating signal may be induced in a variable inductor circuit that includes the variable inductor. The oscillating signal may exhibit characteristics, such as frequency, that change with the inductance of the variable inductor. Such characteristics may be measured to determine a setting of the variable control and which may be used to adjust the brightness or other attributes of the lighting device.