BH-A15 Green Reflection Mirror
4-band multiband filter isolating Violet (430 nm), Near-IR (724 nm), NIR (928 nm), and SWIR (1084 nm) in a single optic — replacing multiple discrete filters for streamlined optical paths and reduced insertion loss.
- Band 1 — Violet / 430 nm
- Centre / Range: 430 nm (378 – 483 nm)
- Bandwidth (FWHM): 105 nm
- Peak transmittance: ≥ 96.4 % T
- Band 2 — Near-IR / 724 nm
- Centre / Range: 724 nm (586 – 863 nm)
- Bandwidth (FWHM): 277 nm
- Peak transmittance: ≥ 97.9 % T
- Band 3 — NIR / 928 nm
- Centre / Range: 928 nm (904 – 951 nm)
- Bandwidth (FWHM): 47 nm
- Peak transmittance: ≥ 75.2 % T
- Band 4 — SWIR / 1084 nm
- Centre / Range: 1084 nm (1069 – 1100 nm)
- Bandwidth (FWHM): 31 nm
- Peak transmittance: ≥ 56.8 % T
- Overall performance
- Inter-band blocking: OD ≥ 0.3 between passbands
- Out-of-band blocking: OD ≥ 0.3 (200 – 1100 nm excluding passbands)
- AOI: 0° (normal incidence); custom angles available
- Construction: Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick
- Custom options: Band shifting, bandwidth tuning, additional bands, rapid prototypes
Learn more
BH-A15 Multiband delivers Centre / Range 430 nm (378 – 483 nm), Bandwidth (FWHM) 105 nm, and Peak transmittance ≥ 96.4 % T.
The hard-oxide coating is built for repeated handling, heat, and cleaning.
Best suited for:
Multi-spectral imaging systems that require simultaneous capture across visible and near-infrared channels — this 4-band design eliminates the need for a motorised filter wheel, reducing mechanical complexity and increasing acquisition speed
Description
The BH-A15 Green Reflect Mirror (GRM) is a specialized dichroic mirror designed to reflect green light while maintaining transmission across blue and red wavelengths. This notch-like filter passes blue at 391-480 nm and red at 620-838 nm (peak 97.9 % at 655 nm) while suppressing green 500-600 nm (14 %). The GRM enables simultaneous blue laser excitation and far-red detection, or separate red and blue illumination pathways with minimal optical crosstalk. Extended capabilities include combined red and far-red fluorophore detection with blue laser excitation, essential for advanced multiplexing in confocal and multi-parameter flow cytometry systems.
Key Advantages
- Blue-Red Dual Pass-Band - Peak 97.9 % transmission at 655 nm with Blue: 391-480 nm and Red: 620-838 nm enables separate detection of blue-excited and red-excited signals.
- Green Wavelength Reflection - 14 % green transmission (500-600 nm) effectively reflects GFP and FITC signals away from detectors while allowing minimal bleed-through measurement.
- Far-Red Signal Preservation - Maintains exceptional transmission across 620-838 nm, enabling simultaneous mCherry and Alexa 647 detection in single optical path.
- Hard-Oxide Ion-Assisted Coating - Multilayer hard-oxide design maintains dichroic performance under high-power laser excitation and continuous thermal cycling.
- Custom Format Flexibility - Round, square, and free-form formats from 5-450 mm with Borofloat, soda-lime, Schott D263 T, and Corning Eagle XG substrate options.
Typical Applications
- Advanced Confocal Microscopy - Reflects green excitation while passing blue and red signals, enabling simultaneous three-channel detection with blue-green-red lasers.
- Multi-Color Flow Cytometry - Separates green laser excitation from red and far-red signal detection, enabling efficient 4-5 parameter cell sorting.
- Super-Resolution Microscopy - STED and other high-resolution techniques using green deflection and blue-red detection for nanoscale cellular imaging.
- Raman Spectroscopy - Reflects green laser excitation while capturing Stokes red-shifted Raman signals and direct red reflectance simultaneously.
- Optical Multiplexing - Enables three independent optical pathways (blue, green reflection, red) in single microscope for maximum information density.
Deploy the BH-A15 Green Reflect Mirror in your advanced multi-color imaging system with rapid prototyping and production capability.
FAQ
BH-A15 FAQ
What is BH-A15 and what is it used for?
BH-A15 is a GRM - Green Reflect Mirror. The BH-A15 Green Reflect Mirror (GRM) is a specialized dichroic mirror designed to reflect green light while maintaining transmission across blue and red wavelengths. This notch-like filter passes blue at 391-480 nm and red at 620-838 nm (peak 97.9 % at 655 nm) while suppressing green 500-600 nm (14 %). Common uses include Advanced Confocal Microscopy, Multi-Color Flow Cytometry, Super-Resolution Microscopy, and Raman Spectroscopy.
What are the key optical specs of BH-A15?
Key published specs for BH-A15 include Centre / Range: 430 nm (378 – 483 nm); Bandwidth (FWHM): 105 nm; Peak transmittance: ≥ 96.4 % T; Centre / Range: 724 nm (586 – 863 nm); Bandwidth (FWHM): 277 nm.
What applications is BH-A15 best suited for?
BH-A15 is commonly used for Advanced Confocal Microscopy, Multi-Color Flow Cytometry, Super-Resolution Microscopy, and Raman Spectroscopy. Advanced Confocal Microscopy - Reflects green excitation while passing blue and red signals, enabling simultaneous three-channel detection with blue-green-red lasers.
Can BH-A15 be customized for size, substrate, or coating requirements?
KUPO lists the construction for BH-A15 as Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick. Published custom options include Band shifting, bandwidth tuning, additional bands, rapid prototypes. Custom Format Flexibility - Round, square, and free-form formats from 5-450 mm with Borofloat, soda-lime, Schott D263 T, and Corning Eagle XG substrate options.
What should I know about angle of incidence and durability for BH-A15?
The published angle of incidence for BH-A15 is 0° (normal incidence); custom angles available. The hard-oxide coating is built for repeated handling, heat, and cleaning.
