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For over 20 years, the unsurpassed optical properties of ZEONEX® Cyclo Olefin Polymer (COP) have made it the premier optical polymer for glass replacement in precision imaging lenses.

Key attributes:
 
ZEONEX is used worldwide for mobile device camera lenses, near-eye display and wearable optics, f-theta lenses, optical mirrors, and pico projector optics.

A broad range of grades are available.
TechConnect

TechConnect puts you in direct contact with a ZEON engineer who has the expertise in optical applications to answer technical questions and suggest which COP grade will work best to meet your product needs.

World's Foremost Optical Polymer for Precision-Molded Optics

Glass-Like Optical Properties

ZEONEX optical polymers exhibit glass-like transparency from UVA through NIR wavelengths. With a refractive index of 1.53 and ABBE number of 56, ZEONEX combines the optical characteristics of glass with the design freedom of a molded plastic.

Transmission Chart



Refractive Index

Low Birefringence

ZEONEX COP achieves very low total birefringence by combining low intrinsic birefringence with an ultra-low photoelastic constant for excellent stress birefringence performance. Compared with other polymers, the higher molding temperature capability of COP also promotes improved birefringence by allowing for reduced molecular orientation during molding.

Low Moisture/High Temperature Environmental Stability

ZEONEX has <0.01% water absorption – significantly less than polycarbonate (PC) and acrylic (PMMA). Lenses made with ZEONEX are dimensionally stable, and show minimal change of optical properties following exposure to varying humidity environments.

Low moisture/high temperature environmental stability



Blue and NIR Laser Capability

ZEONEX optical grades are engineered to meet requirements of high-performance and specialty applications. Certain grades of ZEONEX offer good resistance to long-term exposure to blue light and NIR wavelengths, such as those found in blue laser optical pick-up systems and 3D position sensing.


High Molding Precision

With mobile device camera pixel size steadily increasing, producing dimensionally accurate and defect-free microlenses is more important than ever. ZEONEX exhibits extremely high molding transcription, which allows precise control of part dimension and flatness while maintaining ultra-low peak-to-valley (PV) ratios on the surfaces of lenses and prisms. High-flow grades of ZEONEX extend the ability of COP to be molded into very thin, high-curvature lenses with lowered risk of knit-line formation. Nanoscale surface features and gradients are no match for the high-resolution molding capability of ZEONEX.

Thickness Cross Section

COP Section Analysis

ZEONEX Grade Review for Optical Applications

ZEONEX Grade RI Tg (°C) MFI (g/10min) Transmission (%) Haze (%) Moisture Absorption (%) Grade highlights MSDS
480R 1.525 138 21 92 <0.5 <0.01 High clarity, very low haze MSDS for Zeonex 480R
E48R 1.531 139 25       High clarity, low haze, most commonly used grade MSDS for Zeonex E48R
F52R 1.535 156 22       High Tg grade, low birefringence, low dn/dT MSDS for Zeonex F52R
K26R 1.535 143 55       High flow grade for microlens,  low birefringence, very low haze MSDS for Zeonex K26R
330R 1.509 123 11*       Low birefringence, very low fluorescence MSDS for Zeonex 330R
350R 1.509 123 10*       Blue laser / high flux LED resistant grade, very low birefringence MSDS for Zeonex 350R

TechConnect puts you in direct contact with a ZEON engineer who has the expertise in optical applications to answer technical questions and suggest which COP grade will work best to meet your product needs.