Device for manufacturing plastic lens

Details Device for manufacturing plastic lens Device for manufacturing plastic lens

2007-07-31

2007-07-31

Gupta, Yogendra N. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Means applying electrical or wave energy directly to work

Radiated energy

C425S135000, C425S143000, C425S808000, C264S001360, C264S001380

Reexamination Certificate

active

10944424

ABSTRACT:
A rotation table transfers a casting mold M injected with a plastic composition in a circular manner. An active-energy-ray irradiating area is provided to irradiate active energy rays onto the casting mold M in a predetermined angular range when the casting mold M is loaded on the rotation table and the rotation table is rotated once. A servo motor drives the rotation axis of the rotation table. A controller controls the servo motor such that the active energy rays from an ultraviolet lamp are irradiated onto the casting mold M in the active-energy-ray irradiating area for a required time. When the rotation table is intermittently rotated by 60° degrees in a counterclockwise direction, the casting mold M supplied from a supplying/removing area is irradiated by the ultraviolet rays in the active-energy-ray irradiating area, gradually cooled in the cooling area, and returned to the supplying/removing area again and is removed.

REFERENCES:
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patent: 6419873 (2002-07-01), Buazza et al.
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patent: 10-249953 (1998-09-01), None
patent: 2003-535360 (2003-11-01), None
patent: WO 01/91994 (2001-12-01), None
English Abstracts and computer translation for JP 10-249953, Sep. 22, 1998.

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