Title:
【発明の名称】レ-ザ記録および記憶媒体
Document Type and Number:
Japanese Patent JPS63500905
Kind Code:
A
Abstract:
An optical data recording and information storage medium which uses an exposed and developed photosensitive medium with a transparent substrate to store prerecorded data spots. A reflective laser recording metal layer is vapor deposited on the processed photosensitive medium so as to create laser recordable areas adjacent to the prerecorded data. The entire assembly is mounted on a base which may be transparent. A laser is used to write data spots on the thin metal layer. Both the prerecorded data spots and the laser written data spots are read by observing optical contrast with respect to the surrounding field.
Inventors:
Drexler, Jeroum
Application Number:
JP50583286A
Publication Date:
March 31, 1988
Filing Date:
July 28, 1986
Export Citation:
Assignee:
Drexera-Technology-Corporation
International Classes:
B41M5/26; G06K1/12; G06K19/06; G06K19/08; G06K19/14; G07C9/00; G11B7/0033; G11B7/24; G11B7/26; G11B17/34; (IPC1-7): B41M5/26; G06K1/12; G06K19/00; G11B7/24
Attorney, Agent or Firm:
Kuro Fukami