SP635 Shortpass Filter | CWL 635nm, High Transmission 400-625nm

SP635 Shortpass Filter | CWL 635nm, High Transmission 400-625nm

The SP635 is a premium grade shortpass filter designed to maximize spectral efficiency in demanding optical setups. Featuring high inline transmission across the visible spectrum from 400 nm to 625 nm (T > 90%) and sharp transition at its 635 nm cut-off wavelength, this filter effectively isolates shorter wavelengths while providing deep blocking (OD > 2) across the near-infrared band from 680 nm to 1100 nm. It is an ideal solution for optical systems requiring precise spectral separation and superior signal-to-noise ratios.

Technical Specifications

Primary Applications

Engineered specifically for green and blue excitation light paths, the SP635 efficiently suppresses unwanted red and near-infrared stray light. It is widely utilized in fluorescence microscopy, machine vision inspection, flow cytometry, and biomedical imaging systems where high out-of-band rejection is critical for crisp signal detection.

Customization & Service Options

At OPTOStokes, we support both prototyping and full-scale industrial integration. Our Optical Filters can be customized in custom shapes (circular, square, or complex geometries) and equipped with anodized aluminum mounting rings. As a trusted manufacturing partner, we maintain an extensive selection of in-stock components to ensure rapid sample dispatch, rigorous batch-to-batch quality control, and scalable production schedules.

Technical Support & Inquiries

Eliminate lead-time risks and optical performance bottlenecks with industry-tested optical solutions. Whether you require immediate off-the-shelf delivery or bespoke coating modifications, our engineering team is ready to assist. Contact us today at sales@optofilters.com or submit an online inquiry to receive detailed technical datasheets and competitive pricing.