Optical recording disk

Details Optical recording disk Optical recording disk

1986-03-28

1988-04-19

Goldberg, E. A.

Recorders

Record receivers and/or driving means therefor

Disc

369283, G01D 1524

Patent

active

047393459

ABSTRACT:
An optical recording disk wherein information is written and reproduced through the application of recording and reading laser beams is assembled by preparing a pair of circular substrates which each are provided with a plurality of studs or spikes on outer and/or inner circumferential band, forming a recording layer of dye on each substrate, and joining the substrates together through the studs by ultrasonic sealing or adhesive bonding such that the recording layers face one another via an interior space.

REFERENCES:
patent: 4449138 (1984-05-01), Ando
patent: 4564932 (1986-01-01), Lange 346135.1

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