Patent ID: 6462890
Filing Date: 2002-10-08
Classification: G02B

Abstract:
A protective lens adapted to cover a display on an electronic device comprising: a transparent glass substrate having one concave optical surface and one convex optical surface; and a film substrate having a plurality of unequally spaced ink stripes disposed thereupon to form a filtering film, which is attached to the surface of the glass substrate; wherein said ink stripes are distributed on an optical surface of said filtering film according to a predetermined pattern symmetrically disposed about a line bisecting the filtering film and extending to each of two opposite sides thereof; and, wherein said predetermined pattern is disposed on said optical surface such that light emitted from a light source disposed on a concave side of the glass substrate is blocked from transmission through the glass substrate by said ink stripes, except in a narrow arc extending to either side of the line bisecting said filtering film.