Infrared Longpass Optical Glass Filter Series (760nm – 930nm)
Our IR Longpass Filter Glass series is designed for precision optical systems requiring high infrared transmission while blocking visible light. Covering a wide range of cut-off wavelengths from 760nm to 930nm, these absorption-type filters are ideal for IR illumination, security surveillance, and machine vision.
Available Cut-off Wavelengths & Models
| Cut-off (λc) | Common Models | Primary Application |
|---|---|---|
| 760nm / 780nm | HB760, RG780 | NIR sensing, light source filtering |
| 800nm / 830nm | RG830, HB800 | Biometric recognition, IR sensors |
| 850nm | HWB850, RG850 | Night vision, Security cameras |
| 900nm / 930nm | RG9, HB930 | Laser ranging, Industrial inspection |
Full Customization & Volume Supply
As a leading optical glass manufacturer, we provide more than just standard sizes:
- Custom Dimensions: Diameter 2mm to 300mm+, thickness 0.5mm to 10mm.
- Surface Quality: Standard 60/40 or high-precision 40/20 Scratch-Dig.
- Sample Stock: Fast shipping for standard wavelengths.
Need a specific transmission curve or bulk quote? Contact our sales engineers today.
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