Ultraviolet radiation and blue light blocking polarizing lens

An optical transparency adapted to block from incidence at a human eye selected wavelengths of light in a sunlit environment that are harmful to the eye and to transmit to the eye selected wavelengths of visible light that maintain color verity and allow for high visual acuity, comprising:

• a substantially transparent laminate having a light polarizing material;
• and
• a sharp cut-on filter associated with the laminate and adapted to substantially block wavelengths of non-polarized light between 300 nm and about 450 nm and to transmit at least twenty percent of wavelengths of polarized light greater than 625 nm, the filter further being adapted to commence sharply cutting-on transmission of light at a sharp cut-on wavelength of between 450 nm and 550 nm and being characterized by a spectral transmission curve, a portion of whose slope at wavelengths of light greater than the cut-on wavelength but less than 650 nm rises more than 0.5 percent change in light transmission for every one nanometer of increasing wavelength change.

An optical transparency adapted to block from incidence at a human eye selected wavelengths of light in a sunlit environment that are harmful no the eye and to transmit to the eye selected wavelengths of visible light that maintain color verity and allow for high visual acuity, comprising:

• a laminate having a light polarizing material;
• and
• a sharp cut-on filter integral with the laminate and adapted to substantially block wavelengths of non-polarized light between 300 nm and about 450 nm and to commence sharply cutting on transmission of light at a sharp cut-on wavelength of between 450 nm and 550 nm and being characterized by a spectral transmission curve, a portion of whose slope at wavelengths of light greater than the cut-on wavelength but less than 650 nm rises more than 0.5 percent change in light transmission for every one nanometer of increasing wavelength change.