BP670nm Bandpass Filter | CWL 670±3nm, FWHM 23nm±3nm, OD>4 Blocking

This BP670nm bandpass filter is a precision component in our bandpass filters portfolio, fabricated with advanced thin film coating technology to deliver reliable spectral performance for life science and industrial optical systems. It offers high peak transmission within the target passband and deep out-of-band rejection across a broad spectral range, ensuring clean signal extraction and reduced background noise for sensitive detection and imaging setups.

Technical Specifications

Typical Applications

This filter is well suited for small-animal in vivo imaging, a core biomedical imaging application where signal purity directly impacts experimental accuracy. The wide passband enables efficient collection of fluorescent emission signals, while the deep OD4 blocking suppresses excitation light leakage and ambient stray light effectively. Researchers can achieve higher contrast images and more consistent quantitative data for preclinical biological studies and fluorescence-based animal model research.

Customization & Service

OPTOStokes maintains an extensive in-stock selection of standard BP670nm filters for fast prototype delivery and low-volume orders. We support full customization including round, square and custom-shaped substrates, as well as optional mounting rings to fit your mechanical assembly requirements. Every unit undergoes rigorous optical inspection to ensure world-class precision and long-term coating stability, with reliable lead times for both small-batch and mass production orders.

Support & Inquiry

Many R&D engineers and procurement teams face common challenges such as long lead times for high-blocking specialty filters, limited technical support for custom specifications, and inconsistent coating quality across production batches. Our optical specialists provide professional parameter validation and application guidance to help you select the optimal solution for your system. To request samples, formal quotations or custom design support, please send your requirements to sales@optofilters.com or submit an inquiry through our official website.