Patent ID: 6382788
Filing Date: 2002-05-07
Classification: G02C

Abstract:
Eyeglasses for enabling contours and light-coloured objects to stand out more clearly and more distinctly in a range of vision or field of view that is dominated by green vegetation, wherein the eyeglasses include lenses whose light transmission varies with the wavelength of the light, characterised in that said transmission essentially follows a straight line T=K &lgr;âˆ’t, where K is the gradient of the line and is from 0.13Â±0.03, &lgr; is the wavelength in nm, t lies in the range of 5-30% units and T denotes the transmission in %-units, wherein the transmission follows the straight line T when &lgr; is >620 nm; in that transmission beneath 620 nm follows a curve that intersects the line T roughly at 400 and 500 nm; in that the curve has a maximum which lies 5-30% units above T at 450 nm and 5-30% units beneath T at 550 nm; and in that the lens also has a horizontal polarisation filter facility.