BVO VIS DS Polarizer
(Formerly called BVO 125) Overcome the polarizer LED burn encountered by new intense light sources by using BVO VIS DS robust dyestuff linear polarizer. Machine vision requires polarization to eliminate glare and new LED sources can burn traditional iodine based linear polarizer. Some caustic environments such as blue LEDs bleach standard iodine polarizers while other environments such as automobiles require a higher temperature tolerance. Dyestuff polarizers are the best bet to ensure linear polarizer survival.
Dyestuff High Durability Visible Linear Polarizer
- Active Range: 420nm – 650nm
- Resists LED burning
- Type – transmissive, absorptive
- Overcome machine vision polarizer burn-in
- Exceptional environmental durability
- High temperature linear polarizer
- Tougher than iodine based polarizer
- Blue LED extended polarizer lifespan
- Robust PSA
Applications
- Rugged Display
- Automotive
- Durable Sensors
- Visible LED Sources
- 405nm LED Machine Vision
- Projection Systems
Downloads
Precision Polarizer – Glass Laminated Components
Dyestuff polarizers wafer sliced – high durability, resist LED burn
Raw polarizer integration with customer supplied mounts
Film Specifications
| Polarizer Range | 400nm – 700nm |
| Contrast Ratio | 1000:1, nominal |
| Maximum Dimension | 1000mm x 630mm |
| Thickness | .170mm |
| Film Cutting Tolerances | ± 50 microns |
| Adhesive (PSA) | Yes robust type, custom order for NO PSA |
| Temperature Range | -20° C to 80° C |
| Damage Threshold | 3 W/cm2, CW > 0.2 J/cm2 with 20 nsec pulse, visible |
| Color | Neutral Gray |
| Substrate | Plastic Type, “Cellulose Triacetate”, dichroic |
| Surface Quality | 80/50 Scratch-Dig |
Component Specifications
| Outer Dimension | 25.4mm ± 0.20mm |
| Wavefront Distortion | Lambda/2 measured @ 632nm |
| Thickness | 4.20mm ± 0.20mm |
| Substrates | BK-7 |
| Surface Quality | 40/20 Scratch-Dig |
| Beam Deviation | 2 arc minutes |
| Anti Reflection Coatings | R ≤ 0.65% / surface, average. 400nm-900nm |
| Environmental Tolerance | -10˚ C to 70˚ C |
OPTIONAL LAMINATION SUBSTRATES
Optical Grade BK-7
Low Wavefront Distortion Glass
- Industry standard optics glass
- Good transmission visible and NIR
- Best for low wavefront distortion
- Thickness flexibility
- Double side polished, lambda/10 flatness
- Refractive index – 1.52
BK-7 Glass Transmission Chart
Bk-7 Optional BBAR COATING
- R ≤ .65% per surface, avg.
- Ultra broad range, 400nm to 900nm
400-900nm BBAR on BK-7 scan – typical
Corning Display Glass
Results in thin final components
- Thin glass, excellent clarity
- No residual birefringence
- Imaging quality flatness
- No added heavy metals
- 0.5, 0.7mm, 1.1mm options for thickness
- Refractive index – 1.50
Corning Glass Transmission Chart
Corning Glass Optional HEA BBAR COATING
- R ≤ .65% per surface, avg.
- Visible range, 425nm to 685nm
Visible HEA BBAR scan – typical
Non-Birefringent Acrylic
Inexpensive Complex Shapes
- No residual birefringence substrate
- Cheapest option for laminated products
- Digitally cut for all geometric shapes
- Thin flexible substrate (bends)
- 0.2mm – 5.0mm options for thickness
- Refractive index – 1.49
Non-birefringent acrylic transmission chart
Acrylic Optional AR Coating
- R ≤ 1% per surface, avg.
- Visible range, 425nm to 700nm
Acrylic Optional AR scan – typical
