635nm Bandpass Filter | OPTOStokes
Technical Specifications
| Parameter | Description |
|---|---|
| Center Wavelength (CWL) | 635±3nm @ T>90% |
| Full Width Half Maximum (FWHM) | 35±3nm |
| Blocking Range | 350-1000nm @ Tave<0.1% |
| Transmission Range | 630-640nm @ T>85% |
| Thickness | 1.0mm (other thicknesses in stock) |
| Surface Quality | 60/40 scratch-dig |
About This Filter
Our 635nm bandpass filter delivers precise red wavelength isolation, ideal for applications requiring focused 635nm signal. It transmits 85%+ of light in 630-640nm while blocking 99.9% of 350-1000nm light—critical for minimizing background interference in red wavelength systems.
Key Advantages
- Sharp 635nm center wavelength (±3nm) for consistent targeting
- 85%+ transmission in 630-640nm for strong signal throughput
- Ultra-strict blocking (Tave<0.1%) across 350-1000nm eliminates stray light
- Durable coating withstands lab and industrial handling
Applications
- Laser Systems: Isolates 635nm laser beams from ambient light in alignment and measurement tools
- Fluorescence Imaging: Enhances red fluorophore signals (e.g., Texas Red) by blocking 350-1000nm background
- Industrial Sensing: Improves red wavelength detection in color sorting and defect inspection systems
Stock & Custom Options
1.0mm thickness and standard sizes are in stock for immediate delivery. Need specific dimensions? Choose circular, square, or custom shapes—with optional lens mounts for seamless integration.
Why OPTOStokes?
Our filters meet international standards, with ready inventory for urgent needs. Custom solutions? Our team delivers precise, on-time results. Trusted quality for 635nm applications.
Contact Us
Need reliable 635nm filtering? Email sales@optofilters.com or message us—we’ll find your perfect fit.
