The BP810-20nm-0.7mm bandpass filter is designed for ultra-compact near-infrared applications where precision, thinness, and high performance are paramount. Centered at 810nm with a 20nm full width at half maximum (FWHM), this filter delivers transmission greater than 90% across the 808-815nm band and blocks 350-1100nm at transmission less than 1%. Its ultra-thin 0.7mm substrate is ideal for modern OEM optical assemblies, multi-filter stacks, and portable or weight-sensitive devices.
Technical Specifications
| Parameter | Specification |
|---|---|
| Center Wavelength (CWL) | 810nm ± 3nm |
| Transmission Range | 808-815nm at T greater than 90% |
| Full Width at Half Maximum (FWHM) | 20nm ± 3nm |
| Blocking Range | 350-1100nm at T less than 1% |
| Substrate Thickness | 0.7mm |
| Surface Quality | 60/40 scratch-dig per MIL-PRF-13830B |
| Coating Type | Hard ion-assisted deposition |
| Part Number | 20217501 |
Key Performance Features
This NIR filter combines a 20nm FWHM for precise channel selection with exceptional out-of-band blocking, guaranteeing high signal-to-noise in fluorescence, LED, and laser-based diagnostics. The 0.7mm profile significantly reduces overall system height and optical path, enabling denser filter packs or lighter handheld instruments. The coating process provides long-term environmental stability for clinical, research, or field conditions.
Applications
- Compact and OEM medical diagnostics: Portable NIR/IR analyzers, blood oximeters, or multi-analyte POC systems. - NIR fluorescence imaging and confocal microscopy: Efficient Cy7, IRDye 800 detection with reduced autofluorescence. - Laser/LED sensing: 810nm diode/IR laser signal extraction and background suppression. - High-density filter stacks: Minimal focus shift, multi-channel designs, custom OEM integration.
Customization & Service
OPTOStokes supports custom geometries (circular, square, specialty), FWHM/CWL tuning, enhanced coating specs, and OEM volumes. Filters are ISO 9001:2015 certified, with rapid shipment for standard options. Technical support and application engineering are available—contact sales@optofilters.com or visit www.optofilters.com for quotes or design consultation.
Pain Points & CTA
Have challenges with system bulk, low NIR SNR, or multi-filter alignment? BP810-20nm-0.7mm solves compact integration and background suppression. Contact us for fast customization, tech guidance, or logistics support.
