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  • Zeonex 340R
Aug 2007
Zeon Chemicals L.P., New Business DevelopmentRequest Info
For Blue Laser Applications
LOUISVILLE, Ky., Aug. 8, 2007 -- Zeonex, the optical plastic cyclo-olefin polymer (COP), has long been the standard for optical components, including pick-up lenses, used with red lasers, according to its manufacturer, Zeon Chemicals LP. But the increasing use of blue lasers in consumer and industrial applications, including DVD players and other components, has necessitated the development of a material that can also resist long-term exposure to the blue laser.

ZEON340R.jpgBlue lasers, which emit wavelengths around 400 nm, have a tendency to degrade plastics after long-term exposure. This is especially prevalent when the device is operating at the elevated temperatures (e.g., 80 °C) encountered on electronic devices. Zeonex 340R was specifically developed to address the needs for high optical transparency, stable refractive index and high transmittance after prolonged, high-heat exposure to blue lasers, the company said.

Testing by Zeon Corp. (parent company of Zeon Chemicals) comparing Zeonex 340R to conventional materials shows that Zeonex 340R provides superior transmittance after irradiation with 400-nm light. Specifically, the material retained its original transmission of approximately 92 percent even after 1700 hours irradiation (85 °C, 400 mW/cm2). In comparison, conventional materials showed loss of 7-8 percent or more under the same conditions, the company said.

Zeonex 340R has a stable Abbe number over a temperature range from 10 to 60 °C. The refractive index is also stable over the temperature range and over wavelengths from 400-700 nm. Zeonex 340R is suitable for pick-up lenses, mirrors, prisms, and other optical components that are exposed to blue lasers, and is available for immediate sampling, Zeon Chemicals said.

For more information, visit:

Zeon Chemicals LP
4111 Bells Ln.
Louisville, KY 40211
Phone: (502) 775-2000
Fax: (502) 775-2055


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The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
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