Mold for use in making a video disc

Details Mold for use in making a video disc Mold for use in making a video disc

G - Physics

11

B

352/32.4

G11B 3/68 (2006.01) G11B 25/04 (2006.01)

Patent

CA 1069213

ABSTRACT A mold for use in forming at least the video information layer of a video disc is disclosed. The mold includes a body having a substantially flat upper surface with discontinuities out of the plane of the surface, the discontinuities being separated by a flat portion of the surface. The discontinuities and the flat portions are arranged in a video information track, which track is substantially circular. Each discontinuity has a constant radial dimension and a constant maximum dimension in the direction perpendicular to the flat surface. The length of each discontinuity in the circumferential direction and the corresponding separation between adjacent discontinuities represents the stored information. The discontinuities may take the form of depressions in the surface or protrusions above the surface.

287964

Affiliated with

Also associated with

Rating

Mold for use in making a video disc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mold for use in making a video disc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mold for use in making a video disc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-318704