Composite lenses

Details Composite lenses Composite lenses

1996-05-17

1997-12-30

Kiliman, Leszek

Stock material or miscellaneous articles

Composite

Of polycarbonate

428522, 264 17, 264 18, B32B 2736

Patent

active

057028192

ABSTRACT:
A method for making improved optical quality lenses is described which includes arranging a mold having a molding surface, a curable optical quality resin composition, and a plastic lens preform of optical quality material such that the resin composition is disposed between, and in contact with, the plastic lens preform and the mold; upon curing, the resin composition forms a cured plastic attached portion that is bonded to the plastic lens preform. The resin composition and plastic lens preform are selected such that the attached portion has a higher scratch resistance, a lower chromatic aberration, and/or a higher ease of edging than the lens preform.

REFERENCES:
patent: 3673055 (1972-06-01), Sheld
patent: 3763290 (1973-10-01), Sheld
patent: 4191790 (1980-03-01), Chung et al.
patent: 4291097 (1981-09-01), Kamada et al.
patent: 4386042 (1983-05-01), Tatebayashi
patent: 4425403 (1984-01-01), Taniguchi et al.
patent: 4544572 (1985-10-01), Sandvig et al.
patent: 4637904 (1987-01-01), Rounds
patent: 4758448 (1988-07-01), Sandvig et al.
patent: 4904525 (1990-02-01), Taniguchi et al.
patent: 4954591 (1990-09-01), Belmares
patent: 5219497 (1993-06-01), Blum
patent: 5512371 (1996-04-01), Gupta
patent: 5531940 (1996-07-01), Gupta et al.
Patent Abstracts Of Japan, vol. 6, No. 94, 2 Jun. 1982 & JP-A-57 023611 (Seiko Epson Corp), 6 Feb. 1982.

Affiliated with

Also associated with

Rating

Composite lenses does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Composite lenses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite lenses will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-200752