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The excellent optical properties and toughness
of CALIBRE* resins allow their use in applications
requiring good transparency and high impact strength. The
refractive index and light transmission of CALIBRE
polycarbonate resins are compared with those of other transparent
materials in the following Table. CALIBRE resins exhibit
water-white clarity with visible light transmission averaging
89 percent. In addition, Haze is minimal at approximately
1 percent.
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| Optical Properties of Transparent Materials
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| Property |
ASTM
Method |
Glass |
TYRIL
SAN |
Polymethyl
methacrylate |
Cellulose
acetate |
CALIBRE
polycarbonate |
Refractive
Index |
D 542 |
1.52 |
1.57 |
1.49 |
1.50 |
1.58 |
Light
Transmission |
D 1003 |
92 |
87 |
92 |
89 |
89 |
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"*" Trademark of the Dow Chemical Company, licensed for use by LG DOW
Polycarbonate LTD.
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