MidOpt Bi Series Filter Bi525

Salient Features

Bi Series Narrow Interference Bandwidth

• 20-35nm FWHM; Narrow bandwidth
• High transmission ≥85%
• Designed for use with laser diodes
• Ideal wavelength separation when multiple light sources of similar wavelengths are present
• Reflective, mirror-type surface that helps minimize thermal effects
• Available in sizes up to 79.5mm sq.

APPLICATIONS: Bi Series are popular for life science and laser analysis applications where only discrete wavelengths need to be passed to maximize system performance.

 

Bi525 features a narrow passband combined with high peak transmission and excellent out-of-band blocking. It succeeds and improves upon both Bi518 and Bi520 bandpass filters, particularly when it comes to blocking in the near-infrared spectrum. Bi525 filters are typically used in applications employing 520nm green laser diodes or 520nm/525nm green LED light sources. The latter typically finds use in machine vision inspection while the former is commonly used in bioanalytical applications. Various popularly used fluorophores (e.g., GFP, GelStar, SYBER Green, etc.) have emission maximas at or very near 525nm, and Bi525 filters can be used to effectively block excitation sources as well as other interfering longer and shorter wavelength light while letting desired green emission wavelengths pass.