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:
Jun. 22, 2004
Filed:
Apr. 19, 2002
Applicant:
Inventor:
Dee E. Willden, Port Washington, WI (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/08 ;
U.S. Cl.
CPC ...
G02B 5/08 ;
Abstract
A lensless focusing device for receiving an unfocused laser beam and discharging a focused laser beam. The focusing device includes a solid body having an open interior defined by a conical inner wall extending from an inlet opening to a discharge opening. The conical inner wall is a polished or reflective surface that directs the input laser beam toward the discharge opening. The solid body can include a heating element to raise the temperature of the solid body relative to ambient.