MidOpt Bandpass Filters are specially designed for industrial imaging
Available in UV, VIS and NIR passbands
Achieve optimal contrast
Improve system control, repeatability and stability
Block interfering wavelengths, eliminating the need for shrouds
Increase resolution by reducing chromatic aberration
Anti-reflection coated for maximum transmission
Hard coated, single substrate fabrication
Exceptional surface quality; 40/20 scratch/dig
MOUNT & SIZE OPTIONS: In-stock, ready to ship Bandpass Filters are available in Threaded Mounts, sizes M13.25 to M105; 25.4® C-Mount; Slip Mounts; or Unmounted. Custom shapes and sizes are also available.
BP Series Broad Bandwidth
Designed with a broad, Gaussian passband to mimic and accommodate the entire output of the most common LED wavelengths
Test the effects of monochromatic illumination
High transmission ≥90%*
Superior out-of-band blocking
StablEDGE® design reduces angular dependency and minimizes short-shifting effects
Double-side polished glass for exceptional parallelism and optical flatness
Available in sizes up to 165mm sq.
APPLICATIONS: BP Series are the most popular filters used in machine vision and factory automation systems and are a critical element in fluorescence imaging.
BN Series Narrow Bandwidth
45-55nm FWHM*
Guaranteed peak transmission ≥85%
Superior out-of-band blocking
Designed for use with laser diodes and LEDs in applications with overwhelming ambient light
StablEDGE® design reduces angular dependency and minimizes short-shifting effects
Double-side polished glass for exceptional parallelism and transmitted optical wavefront
Available in sizes up to 165mm sq.
APPLICATIONS: BN Series are popular in factory automation applications where overwhelming ambient light (sunlight) may be present and in fluorescence applications to prevent cross-talk, while blocking excitation illumination and ambient light. NIR BN filters are commonly used in outdoor applications such as security surveillance and license plate recognition.
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.