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:
Mar. 08, 2011
Filed:
Mar. 23, 2006
Ludovic Poupinet, Sassenage, FR;
Jerome Hazart, Grenoble, FR;
Berangere Hyot, Eybens, FR;
Marc Plissonnier, Eybens, FR;
Ludovic Poupinet, Sassenage, FR;
Jerome Hazart, Grenoble, FR;
Berangere Hyot, Eybens, FR;
Marc Plissonnier, Eybens, FR;
Commissariat a l'Energie Atomique, Paris, FR;
MPO International, Averton, FR;
Abstract
An irreversible optical recording medium comprises at least an active layer presenting a rear face and a front face designed to receive at least an optical writing radiation. The optical writing radiation enables gas bubbles forming write marks to be formed locally in said active layer by means of a layer forming a gas source arranged on the rear face of the active layer. The layer forming the gas source moreover has a thickness less than or equal to 100 nm so as to limit the height of the bubbles formed in the active layer and therefore to improve tracking when read operations are performed. The layer forming the gas source is preferably made of carbon-doped hydrogenated amorphous silicon oxide.