Bandpass Filters, Buy Standard Infrared or Custom | Optometrics, Dynasil with Size Tolerance +0, -0.1 mm

Optometrics

Bandpass Filters with Size Tolerance +0, -0.1 mm

Bandpass Filters

A bandpass filter is an inexpensive optical filter used as a wavelength selector that allows transmission of a predetermined wavelength while rejecting or blocking other wavelengths. Along with our wide selection of standard infrared filters, Optometrics designs and manufactures custom bandpass filters for instrument manufacturers world wide.

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Applications

Clinical chemistry instrumentation
Spectral radiometry
Environmental testing
Colorimetry
Elemental and laser line separation
Flame photometry
Color separation
Fluorescence
Immunoassays

Transmission Curve

Bandpass Filter Terminology

Transmission Curves are graphs or mathematical functions that characterize optical filters. Typically expressed as the percent or fraction of light transmitted versus wavelength.

Bandwidth is a range of wavelength that specifies the transmitted part of the spectrum.
Central Wavelength (CWL) is the midpoint wavelength of the bandwidth.
Peak Transmittance is the maximum percentage of light transmission through the filter. It is often centered at the CWL, but many filters have fairly flat transmittance across the bandwidth.
Half Bandwidth (HBW) or Full Width-Half Maximium (FWHM) is the wavelength range that characterizes a bandpass filter. It is bound by the wavelengths where transmittance is half (50%) that of the peak transmission.
Upper and Lower Blocking Regions are the ranges of wavelengths where the light is attenuated.

Resources

Product SKUs

Bandpass Filter Specifications | F-1000-10-25

CWL	1000 nm	CWL (Range)	1000 – 1099 nm
CWL Tolerance	± 2 nm	FWHM	10 nm
FWHM Tolerance	± 2 nm	Minimum Peak Transmission	55
Blocking	≥ 4 OD	Blocking Range	200 – 3000 nm
Size (mm)	25.0 mm dia.	Size Tolerance	+0, -0.1 mm
Thickness	7.5 mm	Thickness Tolerance	+0, -0.2 mm
Clear Aperture	21.0 mm	Mount	Aluminum, Black Anodized
Ring Marking	CWL, FWHM, Light Direction	Specification Temperature	23˚ C
Operating Temperature Range	-50° C to +70° C	Humidity Resistance	MIL-810-810E, Method 507.3, 5 Cycles
Optical Quality	Commercial

Bandpass Filter Specifications | F-1050-10-25

CWL	1050 nm	CWL (Range)	1000 – 1099 nm
CWL Tolerance	± 2 nm	FWHM	10 nm
FWHM Tolerance	± 2 nm	Minimum Peak Transmission	55
Blocking	≥ 4 OD	Blocking Range	200 – 3000 nm
Size (mm)	25.0 mm dia.	Size Tolerance	+0, -0.1 mm
Thickness	7.5 mm	Thickness Tolerance	+0, -0.2 mm
Clear Aperture	21.0 mm	Mount	Aluminum, Black Anodized
Ring Marking	CWL, FWHM, Light Direction	Specification Temperature	23˚ C
Operating Temperature Range	-50° C to +70° C	Humidity Resistance	MIL-810-810E, Method 507.3, 5 Cycles
Optical Quality	Commercial

Bandpass Filter Specifications | FL-1064-10-25

CWL	1064 nm	CWL (Range)	1000 – 1099 nm
CWL Tolerance	± 2 nm	FWHM	10 nm
FWHM Tolerance	± 2 nm	Minimum Peak Transmission	70%
Blocking	≥ 4 OD	Blocking Range	X-ray – 1200 nm
Size (mm)	25.0 mm dia.	Size Tolerance	+0, -0.1 mm
Thickness	7.5 mm	Thickness Tolerance	+0, -0.2 mm
Clear Aperture	21.0 mm	Mount	Aluminum, Black Anodized
Ring Marking	CWL, FWHM, Light Direction	Specification Temperature	23˚ C
Operating Temperature Range	-50° C to +70° C	Humidity Resistance	MIL-810-810E, Method 507.3, 5 Cycles
Optical Quality	Commercial

Bandpass Filter Specifications | F-1100-10-25

CWL	1100 nm	CWL (Range)	1100 – 1199 nm
CWL Tolerance	± 2 nm	FWHM	10 nm
FWHM Tolerance	± 2 nm	Minimum Peak Transmission	40
Blocking	≥ 4 OD	Blocking Range	200 – 3000 nm
Size (mm)	25.0 mm dia.	Size Tolerance	+0, -0.1 mm
Thickness	7.5 mm	Thickness Tolerance	+0, -0.2 mm
Clear Aperture	21.0 mm	Mount	Aluminum, Black Anodized
Ring Marking	CWL, FWHM, Light Direction	Specification Temperature	23˚ C
Operating Temperature Range	-50° C to +70° C	Humidity Resistance	MIL-810-810E, Method 507.3, 5 Cycles
Optical Quality	Commercial

Bandpass Filter Specifications | F-1150-10-25

CWL	1150 nm	CWL (Range)	1100 – 1199 nm
CWL Tolerance	± 2 nm	FWHM	10 nm
FWHM Tolerance	± 2 nm	Minimum Peak Transmission	40
Blocking	≥ 4 OD	Blocking Range	200 – 3000 nm
Size (mm)	25.0 mm dia.	Size Tolerance	+0, -0.1 mm
Thickness	7.5 mm	Thickness Tolerance	+0, -0.2 mm
Clear Aperture	21.0 mm	Mount	Aluminum, Black Anodized
Ring Marking	CWL, FWHM, Light Direction	Specification Temperature	23˚ C
Operating Temperature Range	-50° C to +70° C	Humidity Resistance	MIL-810-810E, Method 507.3, 5 Cycles
Optical Quality	Commercial

Bandpass Filter Specifications | F-1200-10-25

CWL	1200 nm	CWL (Range)	1200 – 1299 nm
CWL Tolerance	± 2 nm	FWHM	10 nm
FWHM Tolerance	± 2 nm	Minimum Peak Transmission	40
Blocking	≥ 4 OD	Blocking Range	200 – 3000 nm
Size (mm)	25.0 mm dia.	Size Tolerance	+0, -0.1 mm
Thickness	7.5 mm	Thickness Tolerance	+0, -0.2 mm
Clear Aperture	21.0 mm	Mount	Aluminum, Black Anodized
Ring Marking	CWL, FWHM, Light Direction	Specification Temperature	23˚ C
Operating Temperature Range	-50° C to +70° C	Humidity Resistance	MIL-810-810E, Method 507.3, 5 Cycles
Optical Quality	Commercial

Bandpass Filter Specifications | F-1250-10-25

CWL	1250 nm	CWL (Range)	1200 – 1299 nm
CWL Tolerance	± 2 nm	FWHM	10 nm
FWHM Tolerance	± 2 nm	Minimum Peak Transmission	40
Blocking	≥ 4 OD	Blocking Range	200 – 3000 nm
Size (mm)	25.0 mm dia.	Size Tolerance	+0, -0.1 mm
Thickness	7.5 mm	Thickness Tolerance	+0, -0.2 mm
Clear Aperture	21.0 mm	Mount	Aluminum, Black Anodized
Ring Marking	CWL, FWHM, Light Direction	Specification Temperature	23˚ C
Operating Temperature Range	-50° C to +70° C	Humidity Resistance	MIL-810-810E, Method 507.3, 5 Cycles
Optical Quality	Commercial

Bandpass Filter Specifications | F-1300-12-25

CWL	1300 nm	CWL (Range)	1300 – 1399 nm
CWL Tolerance	± 2 nm	FWHM	12 nm
FWHM Tolerance	± 2.4 nm	Minimum Peak Transmission	40
Blocking	≥ 4 OD	Blocking Range	200 – 3000 nm
Size (mm)	25.0 mm dia.	Size Tolerance	+0, -0.1 mm
Thickness	7.5 mm	Thickness Tolerance	+0, -0.2 mm
Clear Aperture	21.0 mm	Mount	Aluminum, Black Anodized
Ring Marking	CWL, FWHM, Light Direction	Specification Temperature	23˚ C
Operating Temperature Range	-50° C to +70° C	Humidity Resistance	MIL-810-810E, Method 507.3, 5 Cycles
Optical Quality	Commercial

Bandpass Filter Specifications | F-1350-12-25

CWL	1350 nm	CWL (Range)	1300 – 1399 nm
CWL Tolerance	± 2 nm	FWHM	12 nm
FWHM Tolerance	± 2.4 nm	Minimum Peak Transmission	35
Blocking	≥ 4 OD	Blocking Range	200 – 3000 nm
Size (mm)	25.0 mm dia.	Size Tolerance	+0, -0.1 mm
Thickness	7.5 mm	Thickness Tolerance	+0, -0.2 mm
Clear Aperture	21.0 mm	Mount	Aluminum, Black Anodized
Ring Marking	CWL, FWHM, Light Direction	Specification Temperature	23˚ C
Operating Temperature Range	-50° C to +70° C	Humidity Resistance	MIL-810-810E, Method 507.3, 5 Cycles
Optical Quality	Commercial

Bandpass Filter Specifications | F-1400-12-25

CWL	1400 nm	CWL (Range)	1400 – 1499 nm
CWL Tolerance	± 2 nm	FWHM	12 nm
FWHM Tolerance	± 2.4 nm	Minimum Peak Transmission	35
Blocking	≥ 4 OD	Blocking Range	200 – 3000 nm
Size (mm)	25.0 mm dia.	Size Tolerance	+0, -0.1 mm
Thickness	7.5 mm	Thickness Tolerance	+0, -0.2 mm
Clear Aperture	21.0 mm	Mount	Aluminum, Black Anodized
Ring Marking	CWL, FWHM, Light Direction	Specification Temperature	23˚ C
Operating Temperature Range	-50° C to +70° C	Humidity Resistance	MIL-810-810E, Method 507.3, 5 Cycles
Optical Quality	Commercial