Optical lens molding apparatus and precision molding apparatus

Details Optical lens molding apparatus and precision molding apparatus Optical lens molding apparatus and precision molding apparatus

2006-12-12

2006-12-12

Heckenberg, Donald (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

Opposed, registering, coacting mold cavities

C425S411000, C425S808000, C425S812000, C065S305000

Reexamination Certificate

active

07147454

ABSTRACT:
An optical lens molding apparatus includes a cylindrical mold, a first mold core, a second mold core and a correctional ring. The first and the second mold core have a columnar shape and are disposed inside the cylindrical mold to form a cavity. Furthermore, the first and the second mold core have a planar portion at the end surface facing the cavity. The correctional ring is disposed on the planar portion of the second mold core. The correction ring corrects any face tilting of the molded optical lens due to the tilting of the first mold core. The present invention also provides a precision molding apparatus for forming precision parts.

REFERENCES:
patent: 4895585 (1990-01-01), Angenent et al.
patent: 4964903 (1990-10-01), Carpenter et al.
patent: 5616161 (1997-04-01), Morikita
patent: 2003/0056544 (2003-03-01), Yamanaka
patent: 61-174127 (1986-08-01), None
English abstract for JP 61-174127.

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