Device for forming high precision optical lens and the...

Details Device for forming high precision optical lens and the... Device for forming high precision optical lens and the...

2007-11-13

2007-11-13

Davis, Robert B. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Shaping surface including means to release or remove product...

By movable ejector means entering mold cavity

C425S808000

Reexamination Certificate

active

10853216

ABSTRACT:
A high precision molding device for insert-molding optical lens comprises a stationary sub-mould and a movable sub-mould for engaging with the stationary sub-mould thereby forming a mould cavity therebetween for molding an optical lens. The molded lens has a body and a protection ring extending outside from the body, and is separated from the stationary sub-mould together with the movable sub-mould. The movable sub-mould includes a mould base, a core fixed with the mould base and a pushing means for pushing the molded lens off the movable sub-mould. The pushing means is circumferentially positioned at the mould base. The upper and bottom surfaces of the protection ring of the molded lens form textures to be foggy.

REFERENCES:
patent: 2834989 (1958-05-01), Kusnery
patent: 5413743 (1995-05-01), Prophet
patent: 5644833 (1997-07-01), Starkey
patent: 6638054 (2003-10-01), Yamashita et al.
patent: 6872069 (2005-03-01), Starkey
patent: 2002/0078776 (2002-06-01), Yamashita et al.
patent: 97207324.8 (1997-03-01), None
patent: 02262936.X (2002-07-01), None
patent: 59-158231 (1984-09-01), None
English abstracts for JP 59-158231.
English abstracts for JP 59-158231, dated Sep. 1984.

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