Optical disk manufacturing method

Details Optical disk manufacturing method Optical disk manufacturing method

1993-06-24

1995-04-25

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Light polarizing article or holographic article

264107, 264248, 264320, 264 27, 425810, B29D 1100

Patent

active

054096413

ABSTRACT:
In the optical disk manufacturing method a clamping plate is placed in the cavity of a disk body and the disk body is heated and compressed to connect the clamping plate to the disk body. Prior to connecting the clamping plate, a groove is established around the perimeter of the clamping plate. A disk body with or without a groove has its target surface compressed by a heat press while a region outside the target surface perimeter is pressed by an upper pressure surface to connect the clamping plate without creating a protrusion from the upper surface of the disk.

REFERENCES:
patent: 3276941 (1966-10-01), Burns
patent: 4302411 (1981-11-01), Nakagawa et al.
patent: 4315723 (1982-02-01), Antoine et al.
patent: 4452748 (1984-06-01), Lange et al.
patent: 4659407 (1987-04-01), Lacotte et al.
patent: 4795511 (1989-01-01), Wouters et al.

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