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:
Feb. 24, 2004
Filed:
Jul. 27, 2000
Bormashenko Edward, Ariel, IL;
Pogreb Romah, Ariel, IL;
Sheshnev Avigdor, Shiloh, IL;
Abraham Katzir, Tel Aviv, IL;
Bormashenko Yelema, Ariel, IL;
Polytris Ltd., Ariel, IL;
Abstract
An optical recording medium, an optical recording system and an optical recording method, based on the suppression of the absorption coefficient of a polymeric film at selective wavelength in the infra-red as a result of irradiation the film with a beam of a CO laser. The magnitude of the effect, which is observable only above a threshold power of the laser beam, is related to the energy deposited by the writing beam. Optical recorded information is stored in the modified absorbance spectrum of the polymer and is read by an infra-red photometric device in the transmission mode.