BVO UHC Polarizer
BVO UHC is our flagship visible linear polarizer and offers very high transmission with ultra high contrast over the visible spectrum. This absorptive type linear polarizer is also available with or without pressure sensitive adhesive (PSA) or an optional anti-reflection coating directly on the film. The newly updated BVO UHC features higher contrast ratio, improved transmission in short wavelengths and decreased thickness.
ULTRA HIGH CONTRAST VISIBLE DICHROIC LINEAR POLARIZER
- Active Range: 400nm – 700nm
- Ultra Thin: 134 microns thick w/ PSA
- 42% nominal transmission
- Type – transmissive, absorptive
- Higher contrast over visible wavelengths
- BBAR coated glass components available
- Polarizer film available with or without PSA
- BBAR on polarizer film, one side or two sides
- Replaces 3M polarizers – HN 42, HN 42 HE
Applications
- Display Industry
- Environmental Remote Sensing
- Metrology Systems
- Color Management
- Machine Vision
- Microdisplays
- Heads up Displays – HUD’s
- Sensors
- Polarized Microscopy
Downloads
Precision polarizers – glass laminated components
Non-birefringent acrylic polarizer, custom shapes and sizes
MIL Spec custom polarizers wafer sliced to volume quantities
Film Specifications
| Polarizer Range | 400nm – 700nm |
| Contrast Ratio | 18,000:1 nominal |
| Maximum Dimension | 990mm x 620mm |
| Thickness w/ PSA | 0.134mm |
| Thickness no PSA | 0.109mm |
| Film Cutting Tolerances | ± 50 microns |
| Adhesive (PSA) | Yes, non PSA option available |
| Temperature Range | -20° C to 70° C |
| Damage Threshold | 1 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 |
Standard Component Specifications
| Outer Dimension | 25.4mm ± 0.20mm |
| Wavefront Distortion | Lambda/2 measured @ 632nm |
| Thickness | 4.15mm, ± 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
