HARD-COATED NARROWBAND FILTERS
Our first-surface, hard-coat narrowband filters employ magnetron sputtered, hard-oxide coatings deposited on Borosilicate Glass and do not utilize any absorbing filter glasses, making them suitable for high-temperature applications. They provide a steep transition from a high, peak transmission to OD4 blocking. Available at wavelengths from 334nm to 1550nm, including all major laser lines and atomic absorption lines. All filters are mounted in black anodized aluminum rings to provide protection and easy identification.
Hard-Coat Narrowband filters Benefits
- Hard-coated first surface coatings
- Suitable for high-temperature applications
Hard-Coat Narrowband Filters Common Applications
- Machine vision
- Biotech instrumentation
- Medical devices
We also offer many optical bandpass filters in soft-coat and high-transmitting versions. Still can't find what you're looking for? Check our surplus listings for more options.
General Specifications
Thickness: | 5.0 ±0.25mm |
Size Tolerance: | +0.0 / -0.1mm |
Minimum Clear Aperture: | 21mm dia. |
Substrate Material: | Borosilicate Glass |
Flatness: | 3-5 waves |
Surface Quality: | 80-50 per MIL-C-48497A |
Humidity and Abrasion: | Per MIL-C-675A |
Durability: | Per MIL-C-48497A |
Operating Temperature: | -50°C to +100°C |
Mechanical: | Mounted in black anodized aluminum ring |
Typical Spectral Curves: