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. 03, 1987
Filed:
Feb. 21, 1986
Dirk J Gravesteijn, Eindhoven, NL;
Carolus J Van Der Poel, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A method for the optical recording of information in which a recording layer 4 of In.sub.x Sb.sub.1-x, Ga.sub.x Sb.sub.1-x or (InSb).sub.y Se.sub.1-y, wherein 0.4.ltoreq.x.ltoreq.0.6 and 0.7.ltoreq.1.0, or mixtures thereof, provided on a synthetic resin substrate (2) (FIG. 1) in a maximum layer thickness of 150 nm is exposed to infrared laser light having a wavelength of 750-900 nm which is pulsated in accordance with the binary information to be recorded with a pulse time of at most 200 ns, a crystalline area 6 (bit) having maximum dimensions of a few micrometers being formed in the amorphous layer in the exposed places, as well as an optical recording element used in the method.