DB SERIES DUAL BANDPASS FILTERS
Dual Bandpass Filters are becoming increasingly popular in NDVI aerial drone inspection, allowing for single sensor imaging and reduced operation payload. NDVI, traditionally achieved by satellite imagery, can now be obtained utilizing Dual Bandpass Filters and personal aerial imaging devices.
- Pass visible light and a specific portion of the visible (VIS) and near-infrared (NIR) spectrums
- Ideal for color camera applications that utilize daytime sunlight and NIR illumination at night
- Achieve accurate color rendition by blocking interfering wavelengths
- Eliminate the need for dual sensor imaging
- Anti-reflection coated for maximum transmission
- Hard-coated, single-substrate fabrication
- Exceptional surface quality; 40/20 scratch/dig
DB395/870 - Absorptive Visible + NIR
Specifications
Useful Range: 375nm - 425nm & 745nm - 970nm
FWHM: 110nm & 375nm
Tolerance: +/- 10nm
Peak Transmission: ≥90%
Surface Quality: 40/20
Thickness: ≤3mm
DB475/850 - Blue + 850nm NIR
Specifications
Useful Range: 460nm - 490nm & 830nm - 870nm
FWHM: 45nm & 60nm
Tolerance: +/-5nm
Peak Transmission: ≥90%
Surface Quality: 40/20
Thickness: ≤3mm
DB550/850 - Green + 850nm NIR
Specifications
Useful Range: 535nm - 565nm & 830nm - 870nm
FWHM: 40nm & 50nm
Tolerance: +/-5nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: ≤3mm
DB660/850 - Red + 850nm NIR
Specifications
Useful Range: 645nm - 675nm & 830nm - 870nm
FWHM: 40nm & 50nm
Tolerance: +/-5
Peak Transmission: ≥90%
Surface Quality: 40/20
Thickness: ≤3mm
DB735 - Filter Visible + 735nm NIR
Specifications
Useful Range: 405nm - 645nm & 725nm - 755nm
FWHM: 250nm & 50nm
Tolerance: +/- 20nm
Peak Transmission: ≥90%
Surface Quality: 40/20
Thickness: ≤3mm
DB850 - Filter Visible + 850nm NIR
Specifications
Useful Range: 405nm - 645nm & 835nm - 875nm
FWHM: 250nm & 50nm
Tolerance: +/- 20nm VIS & +/- 10nm NIR
Peak Transmission: ≥90%
Surface Quality: 40/20
Thickness: ≤3mm
DB940 - Filter Visible + 940nm NIR
Specifications
Useful Range: 405nm - 650nm & 925nm - 965nm
FWHM: 250nm & 50nm
Tolerance: +/- 20nm VIS & +/- 10nm NIR
Peak Transmission: ≥90%
Surface Quality: 40/20
Thickness : ≤3mm