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:
Apr. 28, 2009
Filed:
May. 03, 2005
Applicant:
John Gary Sousa, Hudson, NH (US);
Inventor:
John Gary Sousa, Hudson, NH (US);
Assignee:
Presstek, Inc., Hudson, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/45 (2006.01); H01S 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Cavity lasers exhibit a relatively high beam quality (e.g., M<1.25) despite a relatively small cavity length (e.g., 50-53 mm) for a high (e.g., ≧10 watt) output power device. This enables the construction of physically smaller laser and optical assemblies without sacrificing performance. Reduction of optical photonic interference, which can impair imaging performance, is also facilitated. Laser and optical assemblies may utilize an aperture defined within an optical barrier element to reduce the divergence of the light beam emanating from a diode-pumping laser.