CLAREX Low Transmission Light Diffusers (DR-IIISX)
Low transmission bulk diffusers for use directly in front of high-bright LEDs with minimal gap.
The factory loads light scattering particles and white pigments into the cast acrylic sheets along with heavy matte textures front & back to make this line of diffusers. The lower transmission levels of the DR-IIISX Diffuser line helps eliminate hot spots and allows for increased uniformity when backlit by high-bright LEDs with minimal gap between the diffuser and the light source. With a wide range of transmission levels, you can choose the diffuser that gets you maximum uniformity and brightness without hot spots.
In applications where higher transmission and/or less hiding power is needed, consider the DR-IIICX Bulk Diffusers instead.
Benefits
- Available as thin as 0.5 mm, yet able to block up to 95% of light and provide effective diffusion
- Transmission and diffusion is the same regardless of thickness
- Extremely uniform surface brightness
- Light transmissions ranging from 5% to 40% in 5% increments
- Customizable features, including HiTemp
Applications
- Direct backlit displays
- Instrument clusters
- Brightness Enhancement
Thicknesses
- 0.5mm
- 0.6mm
- 0.7mm
- 0.8mm
- 1.0mm
Size
- 400 x 550mm is standard
Customization
Custom sheets & parts to meet your application
Do you have a unique design requirement? We can help! Choose the thickness, formulation, additives, color dye/pigments, surface textures, surface coatings, and optical coatings for your custom material configuration, and if we don’t already have it in stock at our warehouse in New York, we can typically have it ready for you in 4-8 weeks. We can even fabricate the finished parts for you.
Transmission Curves
| DR-IIISX Diffuser | Total Light Transmission |
|---|---|
| DR-40SX | 40% |
| DR-35SX | 35% |
| DR-30SX | 30% |
| DR-25SX | 25% |
| DR-20SX | 20% |
| DR-15SX | 15% |
| DR-10SX | 10% |
| DR-05SX | 5% |
Physical Properties of CLAREX DR-IIISX Diffusers
| PROPERTY | TEST METHOD | UNIT | DR-IIIS | |
| JIS | ASTM | |||
| OPTICAL | ||||
| Refractive Index | K7105 | D-542 | – | 1.49 |
| MECHANICAL | ||||
| Elongation | K7113 | D-638 | % | 2 |
| Tensile Rupture Strength | K7113 | D-638 | MPa | 50 |
| Flexural Rupture Strength | K7203 | D-790 | MPa | 50 |
| Impact Strength (IZOD) | K7111 | D-256 | KJ/m2 | – |
| Rockwell Hardness | K7202 | D-785 | – | – |
| Pencil Hardness | D0202 | – | – | 2 – 3H |
| THERMAL | ||||
| Heat Distortion Temperature | K7202 | D-648 | °C | 108 |
| Maximum Recommended Continuous Temperature | °C | 80 | ||
| *Available with higher temperature ratings on request, 90-95ºC | ||||
| Coefficient of Thermal Expansion | K6911 | D-696 | cm/cm/°C | 7 x 10-5 |
| Coefficient of Thermal Conductivity | K1413 | D-177 | W/m°C | 0.17 |
| Heat Forming Temperature | – | – | °C | 140-180 |
| Specific Heat | K7123 | D-638 | J/kg°C | 1.47 |
| ELECTRICAL | ||||
| Volume Resistivity | K6911 | D-257 | Ωm | >1016 |
| Surface Resistivity | K6911 | – | Ωm | >1016 |
| OTHERS | ||||
| Water Absorption | K7209 | D-570 | % | 0.3 |
| Specific Gravity | K7112 | D-792 | – | 1.19 |