BVO NIR Polarizer

All new, purely absorptive NIR linear polarizer available in large 1 meter lengths. The new BVO NIR polarizer also extends down to 550nm offering a combination of visible and NIR polarization. Large format size allows large panel laminations for NIR polarized lighting illuminators in machine vision systems, volume custom sensor applications and biotech components using  the visible / NIR bandwidths. 

VISIBLE / NIR ABSORPTIVE LINEAR POLARIZER

  • Active Range: 550nm – 950nm
  • Hybrid Visible / NIR polarizer
  • Type – transmissive, absorptive
  • Large sheet format – 1000mm x 620mm
  • Polarize all 730nm – 940nm LED’s and laser diodes
  • Dyestuff option available, resists burn in
  • Imaging capable
  • BBAR coated glass components available

BVO NIR polarizer options

  • BVO NIR DS – Dyestuff high durability, high transmission polarizer
  • BVO NIR DS2 – Dyestuff high durability, high contrast polarizer

Applications

  • Surveillance
  • Retroreflective Sensors
  • Defect Identification for Sorting
  • Machine Vision Imaging – Glare Reduction
  • NIR Sensors – Optical, Solid State
  • LIDAR
  • NIR Cameras
  • Polarized Raman Spectroscopy
  • Multispectral Imaging
  • License Plate Scanning
  • Biometrics Polarization
  • NIR Polarized Microscopy

Downloads


Volume NIR polarizer wafer slicing on chosen substrate available
Volume NIR polarizer wafer slicing on chosen substrate available
OEM Specs - Custom prototypes and volume at reduced cost
OEM Specs – Custom prototypes and volume at reduced cost
Precision NIR Polarizers - AR coated glass laminated components
Precision NIR Polarizers – AR coated glass laminated components

Film Specifications

Polarizer Range 550nm-950nm
Contrast Ratio Visible 5,000:1, nominal
Contrast Ratio NIR 3,000:1, nominal
Maximum Dimension 1000mm x 620mm
Thickness .419mm
Film Cutting Tolerances ± 50 microns
Adhesive (PSA) Yes, high durability type PSA
No PSA, optional
Temperature Range -20° C to 80° 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

Component Specifications

Outer Dimension 25.4mm OD ± 0.20mm
Wavefront Distortion Lambda/2 measured @ 632nm
Thickness 6.5mm, ± 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-950nm
Environmental Tolerance -10° C to 60° 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

pdfView Optical Grade BK-7 Specs

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

pdfView Corning Eagle 2000 Specs

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

pdfView Acrylic Specs

Non-birefringent acrylic transmission chart