BVO Wire Grid Polarizer
The next great thing in Visible / NIR polarization. Use it as a 50/50 beamsplitter or regular transmissive linear polarizer. The 80 micron thickness means this film can be laminated to a variety of substrates such as polycarbonate, TAC, acrylic or glass. As a standalone film, BVO WG has very high environmental tolerances and can survive in harsh environments.
Visible / NIR Reflective Wire Grid Linear Polarizer Film
- Active Range: 400nm – 1,700nm
- Hybrid Visible / NIR polarizer
- Consistent extinction over visible & NIR bandwidth
- Type – reflective / transmissive
- High damage threshold film, very durable
- Works as 50/50 beamsplitter or 0˚ transmissive polarizer
- Polarize 740nm, 780nm, 850nm, 870nm, and 940nm LED’s
- Polarize 785nm, 808nm, 830nm, 905nm, 980nm, and 1,064nm laser diodes
- Polarize 1,310nm and 1,550nm optical communications
- NIR imaging capable
- BBAR coated BK-7 components available
- Polarize large surface LED light arrays
- Can be converted with PSA
- Laminate to polymer substrates for support
Applications
- Surveillance & Security
- Machine Vision Imaging – Glare Reduction
- NIR Sensors – Optical, Solid State
- LIDAR
- Multispectral Imaging
- Hyperspectral Imaging
- Agriculture Inspection
- NIR Cameras
- NIR Semiconductor Inspection
- Machine Vision Illumination
- Defect Identification for Sorting
Spec Downloads
Precision Polarizer – Glass Laminated Components
OEM Volume – Custom Specs Reduced Cost
Raw Polarizer – Digitally Cut to Shape or Custom Mounted
Film Specifications
| Polarizer Range | 400nm – 1700nm |
| Contrast Ratio | 1,500:1, nominal |
| Maximum Dimension | 240mm x 80mm |
| Thickness | .080mm |
| Film Cutting Tolerances | ± 50 microns |
| Adhesive (PSA) | None, PSA option available |
| Temperature Range | Up to 105˚ C |
| Damage Threshold | High, max undetermined |
| Color | Reflective Silver |
| Substrate | Wire grid deposited onto TAC or COP |
| Surface Quality | 80/50 Scratch-Dig |
Component Specifications
| Outer Dimension | 25.4mm ± 0.20mm |
| Wavefront Distortion | NA |
| Thickness | 4.2mm, ± 0.20mm |
| Substrate | BK-7 |
| Surface Quality | 40/20 Scratch-Dig |
| Beam Deviation | 2 Arc Minutes |
| Anti Reflection Coatings | R ≤ 0.65% / surface, average. 400nm-900nm R ≤ 0.65% / surface, average. 900nm-1,700nm |
| 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 NIR BBAR COATING
- R ≤ .65% per surface, avg.
- Ultra broad range, 400nm to 950nm
400-950nm 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
Eagle XG Optional NIR BBAR COATING
- R ≤ .65% per surface, avg.
- Ultra broad range, 400nm to 950nm
400-950nm BBAR on Eagle XG 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
