BVO IR Polarizer
The Cadillac of NIR polarization, BVO IR covers all near infrared polarizer applications required by imaging or solid state instruments. The NIR bandwidth reveals unique physics where polarization can increase contrast, reduce glare, select emitted polarized states and attenuate NIR light. All can be done with this utilitarian polarizer.
Near Infrared DIchroic Linear Polarizer
Active Range: 700nm – 1,700nm
Best true NIR polarizer
Type – transmissive, absorptive
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
All NIR low power lasing sources
NIR Imaging capable
BBAR coated BK-7 components available
Polarize portion of SWIR
Replaces 3M polarizer – HR
Applications
Surveillance & Security
Defect Identification for Sorting
Machine Vision Imaging – Glare Reduction
NIR Sensors – Optical, Solid State
Multispectral Imaging
Agriculture Inspection
NIR Polarized Microscopy
NIR Cameras, Photography
NIR Semiconductor Inspection
NIR Raman Polarized Spectroscopy
NIR Astronomy
NIR Thermography
Film Specifications
Polarizer Range
700nm – 1,700nm
Contrast Ratio
3,000:1, nominal
Maximum Dimension
60mm x 55mm
Thickness
.40mm
Film Cutting Tolerances
± 50 microns
Adhesive (PSA)
None
Temperature Range
-20° C to 60° C
Damage Threshold
1 W/cm2, CW
0.2 J/cm2 with 20 nsec pulse, visibleColor
Dark Green
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
4.5mm, ± 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-900nm
R ≤ 0.65% / surface, average. 700nm-1,100nm
R ≤ 0.65% / surface, average. 900nm-1,700nmEnvironmental Tolerance
-10° C to 60° C
Glass & Coating
Optical Grade BK-7
Industry standard optics glass
Good transmission visible and NIR
Best for low wavefront distortion
Thickness flexibility
Double side polished, lambda/10
surface flatness
Refractive index – 1.52
VISIBLE BBAR COATING
R ≤ .65% per surface, avg.
Ultra broad range, 400nm to 900nm
NIR BBAR
R ≤ .65% per surface, avg.
Ultra broad range, 900nm to 1,700nm
Corning Display Glass
Thin glass, excellent clarity
No residual birefringence
Imaging quality flatness
Thin substrates – .7mm, 1.1mm each
Refractive index – 1.50
NIR BBAR
R ≤ .65% per surface, avg.
Ultra broad range, 900nm to 1,700nm
Acrylic
No residual birefringence
Cheapest option for laminated products
Digitally cut for all geometric shapes
Thin substrates – flexible
Refractive index – 1.49
Glass
BK-7 Transmission
Corning Eagle Glass Transmission
Coating
BBAR 400nm-900nm, BK-7 Coating Scan
BBAR 900nm-1,700nm, BK-7 Coating Scan
商品属性 [Polarizer Range] 700nm – 1,700nm [Contrast Ratio] 3,000:1, nominal [Maximum Dimension] 60mm x 55mm [Thickness] .40mm