AND-25C-01IR2

This product is a round (φ25) filter for visible light reduction, coated with near-infrared antireflection coating on both sides. The antireflection coating reduces surface reflection of the filter. Since the filter is an absorptive type, stray light due to reflection is small, and the wavelength characteristics of transmitted light do not change significantly due to light attenuation.

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Part Number
AND-25C-01IR2
S$86.36
  • There are many types in transmittance range so that light can be reduced to various light levels. Furthermore, by combining multiple filters, subtle light intensity adjustment is possible.
  • Three types of ND filters with anti-reflective coating are available: visible, near-infrared, and infrared.
More Information
Catalog Code W3093AR
RoHS Yes
CE No
Guide
  • Outer dimensions other than those listed in the catalog, and anti-reflection coatings in different wavelength bands are also available.
  • When absorptive fixed-type ND filters are placed near a light source, sudden temperature changes can cause the filters to crack. A Heat-strengthening filter makes it more resistant to cracking even when the temperature rises.
  • Heat-strengthened filters have larger dimensions and may exceed tolerances.
  • The filter can be mounted in the same way as a mounted filter (MAN) as a customized product.
Attention
  • Cannot be used for high power lasers. Use of this product may result in damage.
  • The substrate used is an absorption-type ND filter for visible light and is coated with an antireflection coating. Transmission characteristics vary from product to product, so please check the various characteristic graphs.
  • The thickness of each filter will vary (5 mm or less). If you need a constant thickness, please consider the mounted filter(MAN).
Specifications
MaterialOptical Glass
(including a substance of optical absorption)
Diameter φDφ25mm
CoatingBoth side ; Antireflection coating(750 - 1550nm)
Wavelength range of Antireflection Coating750 - 1550nm
Clear aperture85% of the diameter
Surface reflectanceR<0.75% on average (per surface)
Transmittance after coating8.10%@1200nm(Reference Data)