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ZEONEX has earned high marks for low moisture absorption, good transparency and high precision molding in various optical parts applications
ZEONEX resins offer High Transparency ZEONEX resins offer Low Fluorescence ZEONEX resins offer Low Birefringence ZEONEX resins offer Low Water Absorption ZEONEX resins offer High Heat Resistance ZEONEX resins offer Chemical Resistance

Optical Component and Lens Applications

ZEONEX has earned high marks for low moisture absorption, good transparency and high precision molding. ZEONEX resins can be utilized in many applications including:

• Camera Lenses
• Aspherical Lenses
• Prisms
• Mirrors
• F-Theta Lenses
• Pick-up Lenses
• Blood analysis and medical instrumentation relying on optical-based detection

ZEONOR is commonly used for light guides, optical windows and diffuser applications.

ZEONEX and ZEONOR resins offer:

• High Transparency
• Low Fluorescence
• Low Birefringence
• Low Water Absorption – more stable optical properties than PMMA.
• High Heat Resistance
• Chemical Resistance

ZEONEX 350R has been specially designed for blue light/blue laser applications.

ZEONEX F52R is designed for optics requiring high heat resistance (Tg = 156°C) and very low focal length change after heat and humidity exposure.

ZEONEX K26R is our newest grade, designed for microlens applications, including cameras for mobile devices. ZEONEX K26R enables high precision molding of very thin cross-section lenses while maintaining very low birefringence.

Contact Info

Via email: zeonex@zeonchemicals.com

Americas: +1.502.775.2000
Asia: +81.3.3216.1769
Europe: +49.211.5267.0

Charts and Graphs

For additional information, click on the drop down menu.

Product Grade Water Absorption (%) Light Transmittance (%) Glass Transition Temp (°C) Refractive Index
ZEONEX 350R** < 0.01 92 123 1.509
ZEONEX 330R < 0.01 92 123 1.509
ZEONEX 480R < 0.01 92 138 1.525
ZEONEX E48R < 0.01 92 139 1.531
ZEONEX F52R < 0.01 92 156 1.535
ZEONEX
K26R*** 		< 0.01 92 143 1.535

*Please register for additional information.

** ZEONEX 350R is suggested for applications requiring prolonged exposure to blue light / blue laser.

*** Values indicated for reference only. Not to be used for purposes of establishing a specification.

EXCELLENT MOLDABILITY

ZEONEX can be molded for complex lenses and prisms requiring precise micro-features, fast cycle times, and uniform optical properties.

ZEONEX allows for more precise molding than with PC and other plastics.

ZEONEX allows for more precise molding than with PC and other plastics

For microlens applications, including camera optics for smartphones and tablets, new ZEONEX K26R is suggested. It enables high-precision molding of thin cross-section lenses with significant reduction in weld line size and lower birefringence compared to traditional COP and versus COC.

Birefringence comparison:

Birefringence comparison of ZEONEX K26R to traditional COP grades


Weld line comparison:

Weld line comparison of ZEONEX K26R to traditional COP grades

REFRACTIVE INDEX/ABBE NUMBER

ZEONEX COP has a refractive index similar to glass. The refractive index is significantly lower than Polycarbonate (PC). The ABBE number is similar to PMMA.

ZEONEX COP has a refractive index similar to glass. The refractive index is significantly lower than Polycarbonate

HEAT CYCLE TEST

ZEONEX COP has more stable optical properties after heat and humidity exposure than does PMMA.

ZEONEX COP has more stable optical properties after heat and humidity exposure than does PMMA

TRANSMITTANCE IN NEAR-INFRARED AREA

ZEONEX COP resins have excellent light transmission from ~300nm to ~1200nm. The light transmission is reduced above 1200nm.

ZEONEX COP resins have excellent light transmission

LIGHT TRANSMITTANCE

ZEONEX COP resins have superior light transmission from 300-1200nm, as compared to PC and PMMA.

ZEONEX COP resins have superior light transmission

HIGH HEAT RESISTANCE

ZEONEX COP resins have higher heat resistance than common PMMA, PP, and PET resins. This enables ZEONEX to be utilized in optical applications where the part will be exposed to extreme heat and/or humidity.

ZEONEX F52R (lenses) and ZEONOR 1600 (light guides; windows) are recommended for applications needing heat resistance above 120°C.

ZEONEX COP resins have higher heat resistance than common PMMA, PP, and PET resins

LOW WATER ABSORPTION

ZEONEX has <0.01% water absorption - much less than PC and PMMA. ZEONEX parts are dimensionally stable and show minimal spherical and coma aberration of lenses after exposure to humid environments.

ZEONEX parts are dimensionally stable and show minimal spherical and coma aberration of lenses after exposure to humid environments
ZEONEX parts are dimensionally stable and show minimal spherical and coma aberration of lenses after exposure to humid environments

SUPERIOR BALANCE OF PROPERTIES

ZEONEX COP has the best overall balance of properties as compared to other optical plastics and glass.

Property Glass PMMA PC PS ZEONEX COP
Transmission Exc. Exc. Good Very Good Exc.
Low Refractive Index Exc. Exc. Poor Poor Exc.
Birefringence Exc. Exc. Poor Poor Exc.
Water Absorption Exc. Poor Good Exc. Exc.
Impact Resistance Poor Good Exc. Good Good
Moldability Poor Good Exc. Exc. Exc.
Heat Resistance Exc. Poor Good Poor Good

REFRACTION DEPENDENCE

The table below details the refraction dependency of ZEONEX as a function of wavelength and temperature.

480R Wavelength (nm) Abbe number
435.835(g) 486.133(F) 546.075(e) 587.562(d) 656.273(C) 785.1(LD780) µd
Temperature
(°C)		 0 1.5396 1.5343 1.5300 1.5277 1.5250 — 55.8
25 1.5369 1.5317 1.5273 1.5251 1.5224 — 56.2
40 1.5352 1.5299 1.5257 1.5234 1.5207 1.5174 56.6
60 1.5329 1.5276 1.5234 1.5211 1.5184 1.5152 56.6
80 1.5308 1.5253 1.5214 1.5189 1.5164 1.5132 58.3
E48R Wavelength (nm) Abbe number
435.835(g) 486.133(F) 546.075(e) 587.562(d) 656.273(C) 785.1(LD780) µd
Temperature
(°C)		 0 1.5456 1.5402 1.5357 1.5334 1.5306 — 55.8
25 1.5432 1.5378 1.5334 1.5311 1.5283 — 55.7
40 1.5417 1.5363 1.5319 1.5296 1.5268 1.5234 56.1
60 1.5396 1.5342 1.5299 1.5275 1.5247 1.5214 55.9
80 1.5375 1.5320 1.5278 1.5254 1.5228 1.5195 56.9
330R Wavelength (nm) Abbe number
435.835(g) 486.133(F) 546.075(e) 587.562(d) 656.273(C) 785.1(LD780) µd
Temperature
(°C)		 0 1.5236 1.5185 1.5143 1.5121 1.5094 — 56.4
25 1.5208 1.5157 1.5116 1.5094 1.5067 — 56.5
40 1.5192 1.5141 1.5101 1.5079 1.5052 1.5019 57.0
60 1.5169 1.5118 1.5078 1.5056 1.5030 1.4997 57.3
80 1.5145 1.5094 1.5068 1.5031 1.5005 1.4973 56.2

CHEMICAL RESISTANCE

ZEONEX demonstrates excellent resistance to common solvents, as shown on the table below.

Rating:
Alcohol Methanol O
Ethanol O
IPA (isopropyl alcohol) O
Ketone Acetone O
MEK (methyl ethyl ketone) O
Cyclohexanone X
MIBK (methyl isobutyl ketone) X
Ether Ethyl ether X
THF (tetrahydrofuran) X
Aromatic series Xylene X
Carbon hydride n-pentane X
n-hexane X
n-octane X
Chloride based 1,2-dichloroethane X
Other solvents Methyl methacrylate X
DOP (dioctyl phthalate) X
DMF (dimethylformamide) O
Methyl cellosolve O
Limonene X
Acids Hydrochloric acid (10%) O
Concentrated hydrochloric acid O
Sulfuric acid (10%) O
Concentrated sulfuric acid X
Acetic acid O
Formic acid O
Nitric acid O
Phosphoric acid O
Hydrofluoric acid (7%), nitric acid (42%), pure water (51%) O
Alkali Caustic soda (50%) O
Ammonia water (10%) O
Other chemicals Formaldehyde (40%) O
Hydrogen peroxide solution (30%) O
Rating:
Marginal Stress
140 Kgf/cm2 or more: O (usable)
100-140 Kgf/cm2: ^ (Exercise caution with use.)
Less than 100 Kgf/cm2: X (unusable)

The above data are typical properties and should not be construed as specifications for the noted products.