680nm Bandpass Filter | OPTOStokes
Technical Specifications
| Parameter | Description |
|---|---|
| Center Wavelength (CWL) | 680±2nm @ T>90% |
| Transmission | 680nm @ T>90% |
| Blocking Range | 350-1000nm @ T<0.1% |
| Bandwidth | 25nm±5nm |
| Thickness | 1.0mm (other thicknesses in stock) |
| Surface Quality | 60/40 scratch-dig |
About This Filter
Our 680nm bandpass filter is designed for precise red/near-red wavelength isolation. It delivers >90% transmission at 680nm (±2nm) while blocking 350-1000nm light to<0.1%—ideal for applications needing clean, focused 680nm signal with minimal background interference.
Key Advantages
- High transmittance (>90%) at 680nm for strong signal throughput
- Broad blocking (350-1000nm @ T<0.1%) eliminates stray light interference
- Stable center wavelength (680±2nm) ensures consistent performance
- Durable coating withstands continuous use in lab and industrial settings
Applications
- Fluorescence Imaging: Isolates 680nm fluorophore signals (e.g., Cy5) from background, sharpening biological sample visualization
- Spectroscopy: Enhances 680nm analysis accuracy by blocking 350-1000nm ambient/laser interference
- Agricultural Sensing: Detects chlorophyll activity (680nm absorption) in crop health monitoring 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 system integration.
Why OPTOStokes?
Our filters meet international optical standards, with ready inventory for urgent needs. Custom solutions? Our team delivers precise, on-time results. Trusted quality for 680nm applications.
Contact Us
Need reliable 680nm filtering? Email sales@optofilters.com or message us—we’ll find your perfect fit.
