Record carrier with an optically readable radiation-reflecting i

Details Record carrier with an optically readable radiation-reflecting i Record carrier with an optically readable radiation-reflecting i

1978-12-26

1980-10-28

Wolff, John H.

G11B 724

Patent

active

042309158

ABSTRACT:
A record carrier is described having an optically readable radiation-reflecting information structure, which comprises trackwise arranged information areas which, in the track direction and transverse to the track direction, are spaced from each other by intermediate areas. It is demonstrated that if the angle of inclination between the walls of the first areas and the normal to the record carrier has one value between 30.degree. and 65.degree. for a satisfactorily reproducible record carrier, the geometrical distance between the plane of the information areas and the plane of the intermediate areas should have one value between (165/N) nanometers and (270/N) nanometers, N being the refractive index of a transparent medium which is disposed between the first and the second plane.

REFERENCES:
patent: 4020278 (1977-04-01), Carre et al.
patent: 4041530 (1977-08-01), Kramer et al.
patent: 4059841 (1977-11-01), Bricot et al.
patent: 4118734 (1978-10-01), Bouwhuis et al.

Affiliated with

Also associated with

Rating

Record carrier with an optically readable radiation-reflecting i does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Record carrier with an optically readable radiation-reflecting i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Record carrier with an optically readable radiation-reflecting i will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-269784