Products Description
SP550 Shortpass Optical Filter | 350-545nm High Transmission
The OPTOStokes SP550 Shortpass Filter delivers exceptionally sharp spectral cut-offs, designed for precision optical systems demanding high passband efficiency and deep out-of-band rejection. Featuring over 90% average transmission across the 350-545nm ultraviolet and visible spectrum, this filter robustly blocks unwanted broad-spectrum yellow, red, and near-infrared (NIR) stray light up to 1100nm with optical density exceeding OD4 at 0 degree angle of incidence (AOI). Built with durable hard dielectric coatings, it provides lasting optical stability for critical imaging, measurement, and sensor applications.
Technical Specifications
| Optical Parameter | Specification Detail |
|---|---|
| Passband Region | 350 - 545 nm |
| Passband Transmission | T > 90% average |
| Blocking Region | 560 - 1100 nm |
| Blocking Depth | OD > 4 (Optical Density) |
| Angle of Incidence (AOI) | 0 degree |
| Substrate Options | Optical Glass / Fused Silica |
| Coating Technology | Hard Dielectric Thin-Film IAD/IBS |
Key Applications
Due to its high spectral steepness and deep NIR suppression, the SP550 shortpass filter is widely deployed across demanding photonics platforms:
Fluorescence Microscopy & Spectroscopy: Efficiently isolates UV/Blue excitation channels while completely suppressing background infrared fluorescence noise.
Machine Vision & Industrial Inspection: Rejects infrared ambient illumination to improve signal-to-contrast ratios in automated optical sorting systems equipped with an alignment optical lens assembly.
Digital Imaging & Sensor Protection: Serves as a high-performance hot-mirror substitute to block NIR thermal clutter in custom sensor packages and precision optical filters setups.
Customization & Manufacturing Capabilities
OPTOStokes provides flexible manufacturing to match exact engineering blueprints. Beyond off-the-shelf standard dimensions, we offer custom glass cutting (circular, rectangular, and complex custom geometries), precise CNC edge-chamfering, and protective anodized aluminum mounting rings. Backed by rigorous spectrophotometric quality control, OPTOStokes delivers world-class components with rapid turnaround times and dependable stock availability.
Technical Support & Direct Inquiries
Struggling with spectral crosstalk, tight housing restrictions, or unpredictable supplier lead times? Our optical engineering team is available to analyze your setup and recommend optimal coating specifications. Contact us directly at sales@optofilters.com or submit your drawing online to receive a tailored quotation within 24 hours.
Tags: optical filter bandpass filter optical coating shortpass filter OD4 blocking SP550 350-545nm
