Patent ID: 6158865
Filing Date: 2000-12-12
Classification: G02B

Abstract:
A color enhancing optical filter for improving eye vision under lighting environments, comprising, in combination, mounting means for mounting the filter to an eye viewing apparatus that is placed in an air medium subject to extreme lighting conditions comprising a brightly illuminated light level or a low level light and which results from environmental conditions comprising rain, fog, snow, haze, or sun glare and a filter element secured to the mounting means and passing impinging light wavelengths as follows: Light Wavelength (nm) % Incident Light Transmitted  ranges from about 396 to about 404 25 ranges from about 445 to about 455 12 ranges from about 465 to about 475 08 ranges from about 495 to about 505 04 ranges from about 515 to about 525 07 ranges from about 564 to about 576 50 ranges from about 594 to about 606 87 ranges from about 693 to about 707 90.