CLAREX® Near-Infra-Red NIR Filters

These NIR Filters provide precise transmissive properties


CLAREX® NIR Filters transmit infra-red rays and absorbs visible rays. These filters are black in appearance to the human eye.

CLAREX® NIR FILTER - transmits infra-red rays and absorbs visible rays. There are 5 types of infra-red filters which transmit through the ranges of 670nm to 860nm.

  • Transmit infra-red light and absorbs visible
  • Excellent optical characteristics
  • No double refraction
  • Available smooth surface or anti-glare surface
  • Available scratch-resistant

APPLICATIONS - Instrumentation, sensors, communications and optical devices, LIDAR filters, machine-vision

THICKNESS - 0.5, 0.8, 1.0, 1.2, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0mm

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

MACHINING / PRINTING - Available to customer specification.

NEW NIR FILTERS
Type No. Color Tone Infra-red 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
Click for extended data:
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