Patent ID: 6842299
Filing Date: 2005-01-11
Classification: B29D,G02B

Abstract:
1. A carrier for an optical lens comprising: a substantially ring-shaped base with a central axis and a median plane perpendicular to such a central axis, at least three plots projecting from an internal edge of the base, the plots adapted to hold a lens during use, at least one of such plots being resiliently moveable in translation along a substantially radial translation direction relative to said axis, between an internal rest position and a range of active external positions; and a spring arranged between the moveable plot and the base, adapted to exert a resilient return stress on the moveable plot towards the rest position; wherein the carrier is further defined as being comprised of molded plastic, and wherein the material for the carrier is selected and the spring is arranged so that, at a room temperature in the range between 15° C. and 35° C., with at least 10 cycles of flash heating for about 20 seconds at 140° C., the elastic modulus of the spring ranges between 3 N/mm and 10 N/mm.