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Schott Glass Technologies has developed a new contrast enhancement glass made for safety glasses for lampworking. The new material, called ACE, short for “Amethyst Contrast Enhancer,” utilizes rare earth oxides in the glass composition to achieve the unique color enhancing characteristics.

Basically, the color enhancement concept works by selectively positioning transmission in the blue, green, and red spectral regions whereby one can improve the color discrimination between different color objects. These are the same colors used to produce a color television picture. They optimize the readability of such displays under high ambient light conditions.

ACE Didymium Glasses utilize rare earth oxides in their composition to provide the same filtration. Didymium safety glasses are very efficient at filtering sodium flare and providing ultraviolet protection to 390 mm. The 2 ACE glass is becoming a preferable choice for lampworking safety. It is very comfortable for viewing under high ambient light conditions such as when working with glowing heat sources for a duration of time. Also, although they have a relatively low luminous transmission of 38%, ACE didymium safety glasses are not recommended for sun protection use unless UV filtering coatings are applied.

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