EYEWEAR LENSES WITH CONTROLLED FILTERS FOR NIGHT DRIVING

摘要

The present invention is embodied in an eyewear lens with at least two controlled, limited visible light blocking filters that attenuate its transmittance spectrum. More specifically, in the present invention, the eyewear lens attenuates limited amounts of light in at least two visible wavelength regions via controlled, limited blocking filters, wherein the overall luminous transmittance is at least 75%. The at least two controlled, limited blocking filters have their peak blocking wavelengths in the region of 410-500 nm and 530-620 nm, respectively. In a preferred embodiment, the minimum transmittance that occurs within the 410-500 nm region is ≧55% and the minimum transmittance that occurs within the 530-620 nm region is ≧65%. In another preferred embodiment, the eyewear lens comprises an anti-reflective coating on its inner surface (the eye-side of the lens).

主权项

1. An eyewear lens for reducing transmittance in at least two regions of the visible light spectrum, comprising:
a first controlled, limited blocking filter having a peak blocking wavelength between 410 nm and 500 nm, and a minimum transmittance at the peak blocking wavelength of ≧55%; and a second controlled, limited blocking filter having a peak blocking wavelength between 530 nm and 620 nm, and a minimum transmittance at the peak blocking wavelength of ≧65%, wherein the overall luminous transmittance of the eyewear lens is ≧75%.