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. 26, 2007
Filed:
Feb. 21, 2002
Applicant:
Bryan Bees, Bristol, GB;
Inventor:
Bryan Bees, Bristol, GB;
Assignee:
Leica Microsystems (Switzerland) AG, Heerbrugg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/10 (2006.01); A61B 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention concerns an optical viewing device which incorporates a spectral filter to partially reduce the intensity or wavelength(s) of light transmitted to a specific region of a specimen which may be a human eye. The reduction in light intensity or wavelength may be variable across the filter and may be accomplished in an intensity-dependent or a wavelength-dependent manner.