Method and apparatus for producing a contact lens

Details Method and apparatus for producing a contact lens Method and apparatus for producing a contact lens

1984-06-22

1990-05-15

Lowe, James

Turning

Process of turning

51216LP, 51235, 82165, 249117, 264 27, 269 20, 279 1R, 279 4, 425308, 425808, B23B 1300, B23B 300, B29D 1100

Patent

active

049247395

ABSTRACT:
A polymeric lens material is cast within a mold body which includes a generally conical external surface portion, an annular wall portion defining a pocket in which the material is cast, and a base wall disposed of between the conical external surface portion and the annular wall portion. The base wall defines an optical surface at the bottom of the pocket for forming a surface of a contact lens. The conical external surface portion of the mold body is dimensioned to complement an internal conical surface portion of a collet for accurately positioning and aligning the mold within the collet for a machining operation.

REFERENCES:
patent: 2273500 (1942-02-01), Umlandt
patent: 2465677 (1949-03-01), Deverall
patent: 3171663 (1965-03-01), Stark
patent: 4103914 (1978-08-01), Rohm
patent: 4188353 (1980-02-01), Nufe
patent: 4469646 (1984-09-01), Rawlings

Affiliated with

Also associated with

Rating

Method and apparatus for producing a contact lens does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for producing a contact lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for producing a contact lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-614478