Mikroprismen
The Mikroprismen Convex Micro Hexagon series is designed for compact luminaires that require precise glare control and high optical efficiency. Its micro-scale hexagonal prism geometry achieves UGR < 19 while maintaining a smooth luminance appearance, even at short LED-to-optic distances.
- Thin-Sheet Stability: Strong geometry for slim optics and large panels.
- Reduced Pixelization: Micro prisms blend LED sources for cleaner output.
- High-Angle Cutoff: Convex facets redirect high-angle rays (>65°).
- Isotropic Uniformity: Consistent brightness from all directions.
- High Efficiency: Minimal light loss compared to diffusers.
Certifications
Products Comparison
| Product Code | Material | Thickness mmin | Light Transmission | Fire Rating | Key Features | Thickness in mmin |
|---|---|---|---|---|---|---|
| Plexi Mikroprismen | Acrylic (PMMA) | 1.5 | 94% | UL94 HB | Optical clarity, high transmission, uniform luminance. | 0.059 |
Photometric Data
Optical Performance & Refraction
Geometric Activation
Notice how the micro hexagonal prisms ‘activate’ under illumination. Each convex micro-cell captures raw LED output and refracts it into a smooth, uniform task plane, blending dense LED arrays and suppressing high-angle glare to achieve UGR < 19 performance.
For more robust or demanding applications we recommend the following translucent diffuser sheets in In 1.2 or 1.5mm thickness:
- Plexi90 Silk or Frost,
- S92 or
- Poly80
Applications
More Information
Applications of UGR<19 Sheets
- Workplaces requiring screen-based task lighting (computer work, design studios)
- Office lighting (open-plan offices, meeting rooms)
- Schools and universities (classrooms, libraries, study halls)
- Healthcare facilities (hospitals, clinics, laboratories)
- Public buildings (airports, museums, government offices)
- Commercial lighting (retail stores, shopping malls)
- Architectural lighting (modern interior designs, co-working spaces)
- High-end residential (kitchens, study rooms, home offices)
Available Widths and Lengths
The standard sheet width is 1220 mm. For special projects, the extrusion width can be adjusted up to a maximum of 1250 mm upon request.
Our standard lengths are 1220 mm, 1830 mm, 2440 mm, and 3050 mm. Custom lengths can also be produced upon request to suit your specific needs.
Custom Cutting, Machining & Fabrication
We provide complete processing services to deliver prismatic sheets in the exact size and finish you need, from simple cuts to precision machining.
Available options include:
- Milling to create steps, grooves, or custom profiles
- CNC machining for precise shapes and patterns
- Laser cutting for smooth edges and complex geometries (up to 1300×1300mm)
- Saw cutting for standard sizing and trimming.
- Bonding and assembly of multiple sheet layers
- Edge finishing with chamfers, bevels, and rounded edges
Saw cutting capability: Up to 3050mm long and >30mm wide.
Tolerances:
L：±1mm
W：+0.6 / -0mm (Unilateral Plus) or +0 / -0.6mm (unilateral minus)
Materials: Comparison of PMMA, PC, and PS
Use this comparison table to quickly understand the differences and find the best option for your lighting project.
| Property / Feature | PMMA (Acrylic) | PC (Polycarbonate) | PS (Polystyrene) |
|---|---|---|---|
| Light Transmission | Very high | High | High |
| Impact Resistance | Low – brittle, can crack under stress | Very high – shatter-resistant | Low – brittle |
| Heat Resistance (Continuous Use) | 80–90°C | 120°C | 70°C |
| Maximum Short-Term Heat | ~100°C | ~135°C | ~80°C |
| UV Resistance / Weathering | Good (can yellow over long-term) | Moderate UV stability (However we add UV stabilizer) | Fair (Prone to yellowing)However we add UV stabilizer. |
| Flammability / Safety | Moderate (UL94 HB) | Better (UL94 V-2/V-0 with additives) | Moderate (UL94 HB) |
| Chemical Resistance | Good (resistant to mild acids/alkalis) | Excellent – resists most chemicals | Poor – sensitive to solvents |
| Weight / Density | 1.18 g/cm³ | 1.2 g/cm³ | 1.05 g/cm³ |
| Processing / Fabrication | Thermoforming, laser cutting, CNC. | Good for thermoforming, no laser cutting, CNC. | CNC. |
| Cost | Medium | High | Low |
| Durability / Lifespan | Moderate – good indoor use | Very high – suitable for harsh/industrial environments | Fair – medium-term indoor use |
| Common Applications | Office LED panels | Industrial/warehouse lighting, outdoor luminaires, impact-prone areas | Cost sensitive projects |
Product Tolerances
The three materials (PMMA, PC and PS) have similar tolerances.
| Property | Value |
| Thickness | ±3% |
| Mother board Length / Width | ±3.0 mm |
| Cut-to-Size Length / Width | ±0.3 mm |
| Light Transmittance & Haze | ±2% |
Note: PMMA has the highest thermal expansion coefficient among diffuser materials. This means it can expand in hot conditions and contract in cold conditions. Use our Thermal Expansion Calculator to predict the final dimensions before installation.
Packing
At Hexatron Technologies, we take great care in packing our diffuser sheets to ensure they reach our customers in perfect condition.
1. Standard Sheet Packing
- Mother Sheets: Large sheets (up to standard extrusion sizes) are stacked on pallets or crates.
- Final Cut / Cut-to-Size Sheets: Smaller sheets are carefully wrapped and separated with protective films or kraft paper, then bundled to avoid bending or warping.
2. Protection Methods
- Surface Protection Film: All diffuser sheets are supplied with a removable protective film to prevent scratches and contamination.
- Edge Guards / Corner Protectors: To prevent chipping or denting during handling and shipping.
3. Palletization & Securing
- Sheets are stacked on pallets or crates with interleaving layers and secured with straps or stretch film to prevent movement during transit.
- Maximum stack height is calculated based on sheet thickness and material to avoid warping or deformation. A pallet of 1.5 tons is the maximum weight.
4. Shipping & Handling Recommendations
- Flat Storage: Sheets should be stored flat and supported evenly to maintain flatness.
- Climate Considerations: Avoid prolonged exposure to extreme temperatures or humidity, especially for PMMA, to prevent dimensional changes.
- Handling: Use gloves when removing protective film to prevent fingerprints.