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:
Sep. 14, 2004
Filed:
May. 13, 2002
Applicant:
Inventor:
Chih-Hsiung Lin, Chung Ho City, Taipei Hsien, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 5/00 ;
U.S. Cl.
CPC ...
F21V 5/00 ;
Abstract
A cross-shaped beam laser ray device having a housing containing a battery, a laser diode driver circuit, a laser diode, and a convex lens. A transverse columnar faceted lens, respectively, with a cap having an aperture through its center is fastened to the front extremity of the housing. The transverse columnar faceted lens is aligned vertically with the laser rays such that afer laser rays are emitted by the laser diode and converged through the convex tens, the transverse columnar faceted lens refracts them into a cross-shaped beam that is projected through the aperture and appears as cross hairs when directed onto the surface of a targeted object.