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:
Feb. 13, 2007
Filed:
May. 10, 2005
Alan Uke, Del Mar, CA (US);
Steven Wright, La Jolla, CA (US);
Alan Uke, Del Mar, CA (US);
Steven Wright, La Jolla, CA (US);
Other;
Abstract
An efficient system and method for zooming the light from a flashlight is disclosed. Multiple refractive lenses are translated in unison to allow zooming of the light while reducing the size and weight of the required lenses. In another aspect, a meniscus lens is used to reduce the amount of light lost from a light-emitting diode (LED). One method includes providing a light source in a housing and translating a lens arrangement substantially along a light path of a light beam generated by the light source. The lens arrangement includes at least two refractive lenses separated by a gap, a size of the gap being maintained during translation of the lens arrangement.