Lenses made with Trivex material provide crisp, clear vision, ultra-lightweight comfort, strength and protection.
Trivex material is as easy as surfacing other plastic lens materials; and with some minor adjustments, the techniques commonly used for other lens materials can be used for lenses made with Trivex.
In addition to explaining the significance of optical material properties, this section also covers technical information and recommendations for:
|
Technical Properties for Trivex Lens Material
| Optical Tests |
Method |
Values |
| Abbe (d-line) |
ASTM D542 |
43 - 45 |
| % Transmittance |
ASTM D1003 |
89.19 - 91.54 |
| Impact |
ANSI Z87.1 |
Passes high velocity impact test |
| Impact |
FDA drop ball |
Pass |
| UV cut-off |
Determined using a Cary 4000 UV-Vis spectrophotometer |
394 nm |
| UV protection |
Determined using a Cary 4000 UV-Vis spectrophotometer |
Blocks 100% of UVA and UVB |
| Chemical Resistance |
ISO 175 |
Pass |
Density (g/cm3)
@ 25ºC |
ASTM D792 |
1.105 - 1.11 |
Refractive Index
(d-line) @ 20ºC |
ASTM D542 |
1.528 - 1.533 |
Refractive Index
(e-line) @ 20ºC |
ASTM D542 |
1.530 - 1.536 | |