System for stamping an optical storage disk

Details System for stamping an optical storage disk System for stamping an optical storage disk

1994-01-11

1995-06-27

Jones, W. Gary

Glass manufacturing

Press molding machine

65318, 6537412, 6537413, 6537415, 65356, 65319, 425389, 425406, 425437, 100211, C03B 1100, C03B 1106

Patent

active

054275997

ABSTRACT:
An optical storage disk consists of a glass substrate (1) into which guide tracks (3) for servo-controlling the focussed light beams are directly stamped by a hot stamp process. After stamping, the glass substrate is thermally quenched in the stamping device to increase its breaking resistance through thermal curing. In order to achieve uniform guide tracks over the entire surface of an optical storage disk, flexible stamp stencils (35) in a flexible holder (34) are used whose curvature can be changed by applying hydro-static pressure. Suitable stamp stencils consist of monocristalline silicon disks with surface hardening, or of metal disks, structured in photolithographic processes. The stamp lands are made with bevelled edges to facilitate the separating of stamp and glass substrate after cooling.

REFERENCES:
patent: 3258324 (1966-06-01), Torok
patent: 3660002 (1972-05-01), Morroni
patent: 3761220 (1973-09-01), Dirne
patent: 4211617 (1980-07-01), Hunyar
patent: 4312823 (1982-01-01), Kraakman et al.
patent: 4457794 (1984-07-01), Kotera et al.
patent: 4477328 (1984-10-01), Broeksema et al.
patent: 4643740 (1987-02-01), Nicolson
patent: 5067039 (1991-11-01), Godwin et al.
patent: 5125945 (1992-06-01), Menihan et al.
Grant & Hackh's Chemical Dictionary, Fifth Edition, Roger Grant & Claire Grant, p. 531, Published 1987.

Affiliated with

Also associated with

Rating

System for stamping an optical storage disk does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for stamping an optical storage disk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for stamping an optical storage disk will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-284185