Method for making stamper for press molding optical articles

Details Method for making stamper for press molding optical articles Method for making stamper for press molding optical articles

2011-08-23

2011-08-23

Ahmed, Shamim (Department: 1713)

Etching a substrate: processes

Forming or treating optical article

Lens

C216S024000, C264S129000, C264S134000, C264S219000

Reexamination Certificate

active

08002999

ABSTRACT:
An exemplary stamper includes molding portions arranged in an array. Each of the molding portions includes a central optical molding portion and an annular peripheral molding portion surrounding the central optical molding portion. Each molding portion is capable of facilitating formation of a respective optical article. A surface roughness of the annular peripheral molding portion is larger than a predetermined wavelength of light. The predetermined wavelength is selected according to a wavelength of light that is expected to be incident on the optical article when the optical article is in use.

REFERENCES:
patent: 7094304 (2006-08-01), Nystrom et al.
patent: 7255438 (2007-08-01), Atkins et al.

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