Molding die for optical element with lens-barrel

Details Molding die for optical element with lens-barrel Molding die for optical element with lens-barrel

2006-06-27

2006-06-27

Lopez, Carlos (Department: 1731)

Glass manufacturing

Press molding machine

C065S323000, C425S408000

Reexamination Certificate

active

07065985

ABSTRACT:
A molding die for an optical element with a lens-barrel in which the lens-barrel is set in the molding die includes a tubular guide die, a upper die and a lower die sliding in the guide die Also an optical raw material is placed in the lens-barrel and the optical element is sandwiched, heated and pressurized between the upper die having a transfer surface and the lower die having a transfer surface, thereby integrally forming the optical element in the lens-barrel. Outside diameter portions designed to be equal to the inner diameter of the guide die are provided for the upper die and lower die, wherein the outside diameter portion is fitted in the guide die so as to be able to slide only in the axial direction.

REFERENCES:
patent: 3214254 (1965-10-01), Remington
patent: 4591373 (1986-05-01), Sato
patent: 2002/0184921 (2002-12-01), Kawata et al.
patent: 60-129220 (1985-07-01), None
patent: 63-265833 (1988-11-01), None
patent: 03-146427 (1991-06-01), None
patent: 4-21528 (1992-01-01), None
patent: 04-317427 (1992-11-01), None
patent: 06-271323 (1994-09-01), None
patent: 07-2115721 (1995-08-01), None

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