Commercial Quality Bandpass Filters

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  • UV, VIS, IR Ranges
  • Circular and Square Sizes Available

An optical bandpass filter has a transmission band surrounded by two blocking bands that allow only a portion of the spectrum to pass. These optical bandpass filters have broad spectral bandwidths in either the ultraviolet, visible, or infrared spectrums. The nearly black filters absorb visible radiation. They are perfect for ultraviolet or infrared detection applications. UV filters are often used to selectively transmit the 254nm and 365nm mercury lines. IR filters are often used in nightvision and IR sensing systems.

Bandpass Filter Kits: 8 filter set available. Contains U-330, U-340, BG-3, BG-18, BG-38, B-390, VG-9, and RT-830 glass types. Wooden storage box with foam lining included.

BG-38, U-340, RT-830, U-330, and U-360 available in a Pre-Loaded filter wheel

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Description Stock No. Price In Stock  
Showing 1-20 of 39 Items | Show All Items | Sort by Spec
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Bandpass Filter Kit 1" Diameter
NT55-744 $275.00 In stock and ready to ship. Click to add this item to your cart.
RoHS Exempt
Bandpass Filter Kit 2" Square
NT47-849 $550.00 In stock and ready to ship. Click to add this item to your cart.
RoHS Compliant
U-330 12mm Diameter Bandpass Filter
NT46-095 $26.50 Click to receive an email with delivery information. Click to add this item to your cart.
Wavelength UV
Glass/Filter Number Hoya U-330
Color Black
Thickness (mm) 2.50
Center Wavelength CWL (nm) 330.00
Full Width-Half Max FWHM (nm) 140.00
Density (g/cm3) 2.78
Diameter (mm) 12.0
RoHS Exempt
U-330 1" Diameter Bandpass Filter
NT46-437 $56.00 Click to receive an email with delivery information. Click to add this item to your cart.
Wavelength UV
Glass/Filter Number Hoya U-330
Color Black
Thickness (mm) 2.50
Center Wavelength CWL (nm) 330.00
Full Width-Half Max FWHM (nm) 140.00
Density (g/cm3) 2.78
Diameter (inches) 1
RoHS Exempt
U-330 25mm Square Bandpass Filter
NT46-083 $56.00 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV
Glass/Filter Number Hoya U-330
Color Black
Thickness (mm) 2.50
Center Wavelength CWL (nm) 330.00
Full Width-Half Max FWHM (nm) 140.00
Density (g/cm3) 2.78
Dimensions (mm) 25.0 x 25.0
RoHS Exempt
U-330 2" Square Bandpass Filter
NT46-438 $125.00 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV
Glass/Filter Number Hoya U-330
Color Black
Thickness (mm) 2.50
Center Wavelength CWL (nm) 330.00
Full Width-Half Max FWHM (nm) 140.00
Density (g/cm3) 2.78
Dimensions (inches) 2 x 2
RoHS Exempt
U-340 12mm Diameter Bandpass Filter
NT46-096 $26.50 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV
Glass/Filter Number Hoya U-340
Color Black
Thickness (mm) 2.50
Center Wavelength CWL (nm) 340.00
Full Width-Half Max FWHM (nm) 85.00
Density (g/cm3) 2.92
Diameter (mm) 12.0
RoHS Exempt
U-340 1" Diameter Bandpass Filter
NT46-439 $56.00 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV
Glass/Filter Number Hoya U-340
Color Black
Thickness (mm) 2.50
Center Wavelength CWL (nm) 340.00
Full Width-Half Max FWHM (nm) 85.00
Density (g/cm3) 2.92
Diameter (inches) 1
RoHS Exempt
U-340 25mm Square Bandpass Filter
NT46-084 $56.00 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV
Glass/Filter Number Hoya U-340
Color Black
Thickness (mm) 2.50
Center Wavelength CWL (nm) 340.00
Full Width-Half Max FWHM (nm) 85.00
Density (g/cm3) 2.92
Dimensions (mm) 25.0 x 25.0
RoHS Exempt
U-340 2" Square Bandpass Filter
NT46-440 $125.00 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV
Glass/Filter Number Hoya U-340
Color Black
Thickness (mm) 2.50
Center Wavelength CWL (nm) 340.00
Full Width-Half Max FWHM (nm) 85.00
Density (g/cm3) 2.92
Dimensions (inches) 2 x 2
RoHS Exempt
U-360 12mm Diameter Bandpass Filter
NT46-081 $22.50 Click to receive an email with delivery information. Click to add this item to your cart.
Wavelength UV
Glass/Filter Number Hoya U-360
Color Black
Thickness (mm) 2.50
Center Wavelength CWL (nm) 360.00
Full Width-Half Max FWHM (nm) 45.00
Density (g/cm3) 2.74
Diameter (mm) 12.0
RoHS Exempt
U-360 1" Diameter Bandpass Filter
NT46-441 $39.50 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV
Glass/Filter Number Hoya U-360
Color Black
Thickness (mm) 2.50
Center Wavelength CWL (nm) 360.00
Full Width-Half Max FWHM (nm) 45.00
Density (g/cm3) 2.74
Diameter (inches) 1
RoHS Exempt
U-360 25mm Square Bandpass Filter
NT46-085 $41.00 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV
Glass/Filter Number Hoya U-360
Color Black
Thickness (mm) 2.50
Center Wavelength CWL (nm) 360.00
Full Width-Half Max FWHM (nm) 45.00
Density (g/cm3) 2.74
Dimensions (mm) 25.0 x 25.0
RoHS Exempt
U-360 2" Square Bandpass Filter
NT46-442 $80.00 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV
Glass/Filter Number Hoya U-360
Color Black
Thickness (mm) 2.50
Center Wavelength CWL (nm) 360.00
Full Width-Half Max FWHM (nm) 45.00
Density (g/cm3) 2.74
Dimensions (inches) 2 x 2
RoHS Exempt
UG-1 1" Diameter Bandpass Filter
NT46-047 $29.50 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV
Glass/Filter Number Schott UG-1*
Color Black
Thickness (mm) 3.00
Center Wavelength CWL (nm) 355.00
Full Width-Half Max FWHM (nm) 53.00
Density (g/cm3) 2.77
Diameter (inches) 1
RoHS Exempt
UG-1 2" Square Bandpass Filter
NT46-048 $56.00 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV
Glass/Filter Number Schott UG-1*
Color Black
Thickness (mm) 3.00
Center Wavelength CWL (nm) 355.00
Full Width-Half Max FWHM (nm) 53.00
Density (g/cm3) 2.77
Dimensions (inches) 2 x 2
RoHS Exempt
BG-3 1" Diameter Bandpass Filter
NT48-633 $29.50 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV-VIS
Glass/Filter Number Schott BG-3
Color Deep Blue
Thickness (mm) 3.00
Center Wavelength CWL (nm) 356.00
Full Width-Half Max FWHM (nm) 146.00
Density (g/cm3) 2.56
Diameter (inches) 1
RoHS Exempt
BG-3 2" Square Bandpass Filter
NT48-638 $56.00 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV-VIS
Glass/Filter Number Schott BG-3
Color Deep Blue
Thickness (mm) 3.00
Center Wavelength CWL (nm) 356.00
Full Width-Half Max FWHM (nm) 146.00
Density (g/cm3) 2.56
Dimensions (inches) 2 x 2
RoHS Exempt
B-370 12mm Diameter Bandpass Filter
NT48-630 $22.50 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV-VIS
Glass/Filter Number Hoya B-370
Color Blue-Violet
Thickness (mm) 2.50
Center Wavelength CWL (nm) 370.00
Full Width-Half Max FWHM (nm) 100.00
Density (g/cm3) 2.36
Diameter (mm) 12.0
RoHS Exempt
B-370 1" Diameter Bandpass Filter
NT48-634 $39.50 In stock and ready to ship. Click to add this item to your cart.
Wavelength UV-VIS
Glass/Filter Number Hoya B-370
Color Blue-Violet
Thickness (mm) 2.50
Center Wavelength CWL (nm) 370.00
Full Width-Half Max FWHM (nm) 100.00
Density (g/cm3) 2.36
Diameter (inches) 1
RoHS Exempt
 Sort by Spec
 
Dimensional Tolerances Schott: ±0.015" (0.38mm)
Hoya: +0/-0.25mm
Thickness Tolerances Schott: nominal
Hoya: ±0.2mm
Surface Quality 80-50
Properties applicable to these filters  
λm Center wavelength: midpoint between λ1 and λ2 where λ1 and λ2 are the wavelengths at which the transmittance is half the maximum or tmax/2
FWHM Full Width at Half Max: the distance between λ1 and λ2 (approx.)
þ Density
Tg Transformation temperature
*Intense UV radiation can cause a permanent reduction in the transmission of UG-1 and BG-12
**BG-18 can also be used as a short pass filter with λc = 595nm
***BG-38 can also be used as a short pass filter with λc= 645nm

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