CLAREX® Near-Infrared (NIR) Filters

Optical Grade Longpass NIR Filters available in a variety of configurations to meet your needs


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Typical uses include LiDAR instrumentation, Time of Flight sensors

CLAREX® NIR FILTERS - transmit Near Infrared (IRT) light and absorbs visible light. There are 5 types of Near Infrared filters which transmit through the ranges of 670nm to 860nm.

APPLICATIONS - Instrumentation, Sensors, Communications and Optical Devices, LIDAR filters, Machine-Vision, Time of Flight Sensors, Covert Imaging & Illumination

THICKNESS - 0.5, 0.6, 0.7, 0.8, 1.0, 1.2, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0mm

SIZE - 400mm x 550mm standard. Custom sizes available upon request.

MACHINING / PRINTING - Available to customer specification. See more about our fabrication capabilities.

Type No. Color Tone Near Infrared transmission
NIR-70N Black Transmit from 670nm
NIR-75N Black Transmit from 730nm
NIR-80N Black Transmit from 760nm
NIR-85N Black Transmit from 810nm
NIR-90N Black Transmit from 860nm

PHYSICAL PROPERTIES
PROPERTY METHOD UNIT Normal Grade Hard Coat Grade
SPECIFIC GRAVITY ASTM D-792   1.19 1.19
OPTICAL
Refractive Index ASTM D-542   1.49 1.49 (1.54)
MECHANICAL
Elongation ASTM D-638 % 5 5
Tensile Rupture Strength ASTM D-638 kg/cm2 750 650
Flexural Rupture Strength ASTM D-790 kg/cm2 1200 800
THERMAL
Heat Distortion Temperature ASTM D-648 ºC 110 110
Maximum recommended continuous temperature ºC 80 80
Available with higher temperature ratings on request, 90-95ºC
Coefficient of Thermal Expansion ASTM D-696 cm/cm/ºC 7 x 10-5 7 x 10-5
Specific Heat ASTM D-638 cal/grºC 0.3535 0.35
DURABILITY
Heat Resistance 80ºC x 100hr   No Change No Change
Cold Resistance -40ºC x 100hr   No Change No Change
Humidity Resistance 60ºC x 90% x 100hr   No Change No Change
Thermal Cycle -40ºC <> 80ºC (10 cycles)   No Change No Change
ELECTRICAL
Surface Resistivity   W >1016 >1016
CHEMICAL
Methyl Alcohol (50%)     No Change No Change
Ethyl Alcohol (50%)     No Change No Change
Soap Aqua Solution     No Change No Change
Toluene Dissolved No Change
Acetone     Dissolved No Change
Benzene     Swollen No Change
Ethylene Dichloride     Dissolved No Change
+
PENCIL HARDNESS     2H 6~8H
ADHESION K-5400     100/100
FLAMMABILITY
  UL standard >=0.8mm
Thickness
94HB 94HB