Coating processes – Optical element produced – Transparent base
Patent
1990-03-06
1992-04-28
Lowe, James
Coating processes
Optical element produced
Transparent base
82 111, 264 13, 264 19, 264 27, 425DIG201, 427290, 427296, 4274121, B23B 100, B05D 506, B29D 1100
Patent
active
051087898
ABSTRACT:
Method for machining flat, circular disk-shaped recording media, for example, audio, video or ROM compact disks, for the purpose of improving their surface quality and their dimensional stability, employs a lathe having a driven lathe spindle (7), a vacuum chuck (8) for holding the recording medium or substrate (15, 15'. . . ) to be machined, and a carriage (9) for holding and guiding the cuting tool (5) magazine (14) hold the machined and unmachined substrates, there being further provided a robot (10) held on the base (2) or bed (4) of the lathe and having a gripper arm (11) with gripping tongs (12) movable in several planes which transport the substrates from one magazine (14) to the vacuum chuck (8) or from the vacuum chuck to the other magazine, the stacking axes (L) of the two magazines extending at an angle to the horizontal plane (E), and the magazines being maintained within the range of action of the gripper arm (11) with gripping tongs (12).
REFERENCES:
patent: 4330910 (1982-05-01), Schachl et al.
patent: 4671145 (1987-06-01), Fehrenbach et al.
patent: 4793953 (1988-12-01), Maus
patent: 4928561 (1990-05-01), Fouche
Michael Klaus
Petz Andreas
Leybold Aktiengesellschaft
Lowe James
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