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:
Oct. 30, 2007
Filed:
May. 26, 2004
Qienyuan Zhou, Del Mar, CA (US);
Xiangrun Huang, Miami, FL (US);
Qienyuan Zhou, Del Mar, CA (US);
Xiangrun Huang, Miami, FL (US);
Carl Zeiss Meditec, Inc., Dublin, CA (US);
Abstract
A scanning laser polarimetry (SLP) system that measures retinal nerve fiber layer (RNFL) retardance in a single scan image with improved sensitivity. An external bias retarder in combination with the anterior segment retardance forms a nonzero joint retardance adapted to enhance the signal-to-noise ratio (SNR) of the SLP system. With such a simple bias retarder, the effects of anterior segment retardance (δ, θ) may be removed from a single polarimetric image of the retina without a direct cancellation by a variable corneal compensator (VCC) by the method of this invention. Using a single polarimetric image is particularly advantageous for simplicity and accurate corneal compensation. The simple bias retarder may be embodied as a VCC or any useful external retarder, for example.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile