We offer the highest quality filtered glasses lenses made in Germany. Enhanced Didymium reduces MORE of the bright yellow sodium flare glare and blocks about 3% of Inferred -The Heat given off from the flame; and blocks about 25% of Ultra Violet light-The Sunburn Rays. You can see fairly well in normal light as well.
This glass material was developed in its original form for color enhancement of the primary colors Red, Green, and Blue. It has the ability to filter the sodium flare at 575 to 600 Nm. There also appears to be some benefit from the color enhancement properties for the glass, by improving the judgment of temperature. It affords adequate protection in the ultra violet wavelengths, and some improved protection in the near and mid infrared spectrum.
Item #s: 9300 or 66BK