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.
WATCH LED TO FILTER GUIDE
Match your LED light to the right filter
BANDPASS FILTER APPLICATIONS:
Bandpass Filters are used in a variety of industries, including machine vision,factory automation, security and surveillance, license plate recognition, medical and life science, agricultural inspection, aerial imaging, motion analysis, photography and cinematography.
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.
*Applies in most cases
