Dielectric Filters

Optical filters designed with dielectric thin-film coatings to restrict transmission and/or reflection to specific wavelength ranges with high contrast. Learn More

Product	Wavelength Range	Transmittance	Dimensions	Availability	Price (USD)
Dichroic Filter	420 - 530 nm 490 - 530 nm	-	Ø 15.9 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 420 - 530 nm 490 - 530 nm Cut-On Wavelength 545 nm Reflectance > 95% (420 - 530 nm, Average) > 80% (490 - 530 nm, Average) Diameter 15.9 mm Dimensions Ø 15.9 mm Thickness 3.2 mm Shape Round Angle of Incidence 11.25° Supplier Location Vermont, USA See product details More from omega optical
Color Correction Filter	-	-	Ø 12.5 mm	Contact Supplier	$ 28.23
Product Code Diameter 12.5 mm Dimensions Ø 12.5 mm Thickness 1.1 mm Shape Round Surface Quality 60-40 scratch-dig Clear Aperture 11.25 mm Substrate Borosilicate Thickness Tolerance ±0.2 mm Diameter Tolerance +0/-0.2 mm Length Tolerance ±0.25 mm Width Tolerance ±0.25 mm Supplier Location United Kingdom; Rhode Island, USA See product details More from Knight Optical
Dichroic Filter	470 - 490 nm 550 - 570 nm	-	25.7 x 36 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 470 - 490 nm 550 - 570 nm Reflectance > 90% (470 - 490 nm, 550 - 570 nm) Dimensions 25.7 x 36 mm Thickness 1 mm Shape Rectangular Angle of Incidence 45° (Half-Cone) Length 36 mm Width 25.7 mm (±0.1) Supplier Location Vermont, USA See product details More from omega optical
Dichroic Filter	487 - 512 nm	-	17.85 x 25.7 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 487 - 512 nm Cut-On Wavelength 525 nm Reflectance > 90% (487 - 512 nm, Average) Dimensions 17.85 x 25.7 mm Thickness 1.1 mm Parallelism < 15'' Shape Rectangular Angle of Incidence 45° (Half-Cone) Length 25.7 mm Width 17.85 mm (±0.25) Transmitted Wavefront Error λ/2 (per inch) Supplier Location Vermont, USA See product details More from omega optical
Color Filter	-	> 85% (390 - 530 nm, Average) < 1% (585 - 710 nm, Average) < 1% (400 - 460 nm, 505 nm, 575 nm, Average, Average, Peak)	Ø 25.4 mm (1")	In stock	$ 29.57
Product Code Transmittance > 85% (390 - 530 nm, Average) < 1% (585 - 710 nm, Average) < 1% (400 - 460 nm, 505 nm, 575 nm, Average, Average, Peak) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 2 mm Shape Round Angle of Incidence 0° Surface Quality 80-50 scratch-dig Clear Aperture Ø 22.9 mm Substrate Borofloat Thickness Tolerance +0.2/-0.5 mm Diameter Tolerance +0/-0.25 mm Operating Temperature -50 to 80 °C Mount Non-Threaded Mount, 25.4 mm Supplier Location New Jersey, USA See product details More from Thorlabs
Dichroic Filter	-	-	Ø 10 mm	Contact Supplier	Add to cart to request quote
Product Code Diameter 10 mm Dimensions Ø 10 mm Thickness 1 mm Shape Round Angle of Incidence 0 - 15° (Half-Cone) Substrate UG5 Supplier Location Vermont, USA See product details More from omega optical
Dichroic Filter	-	90% (400 - 595 nm)	-	Contact Supplier	$ 328.00
Product Code Cut-On Wavelength 615 nm Reflection Wavelength 640 - 750 nm Transmission Wavelength 400 - 595 nm Reflectance 50% (615 nm) > 98% (640 - 750 nm, Average) Transmittance 90% (400 - 595 nm) Angle of Incidence 45° Surface Quality 60-40 scratch-dig Substrate N-BK7 Surface Irregularity λ/4 (Flatness) Filter Color Red Mount Threaded Mount, C-Mount Supplier Location New Jersey, USA See product details More from Edmund Optics
Dichroic Filter	-	-	Ø 12 mm	Contact Supplier	Add to cart to request quote
Product Code Diameter 12 mm Dimensions Ø 12 mm Thickness 0 mm Shape Round Angle of Incidence 0 - 15° (Half-Cone) Blocking > 5 OD 4 OD (1100 nm) > 4 OD Supplier Location Vermont, USA See product details More from omega optical
Bandstop Filter	-	> 80% (400 - 550 nm, Average)	Ø 50 mm	1 weeks	$ 102.00
Product Code Transmittance > 80% (400 - 550 nm, Average) Diameter 50 mm Dimensions Ø 50 mm Thickness 1 mm Parallelism 3' Shape Round Angle of Incidence 0° Surface Quality 80-50 scratch-dig Clear Aperture 47.5 mm Surface Irregularity 5λ (Flatness) Applications Fluorescence Imaging Microscopy Supplier Location New Hampshire, USA See product details More from Andover
Color Correction Filter	-	-	Ø 25 mm	Contact Supplier	$ 30.51
Product Code Diameter 25 mm Dimensions Ø 25 mm Thickness 1.1 mm Shape Round Surface Quality 60-40 scratch-dig Clear Aperture 22.5 mm Substrate Borosilicate Thickness Tolerance ±0.2 mm Diameter Tolerance +0/-0.2 mm Length Tolerance ±0.25 mm Width Tolerance ±0.25 mm Supplier Location United Kingdom; Rhode Island, USA See product details More from Knight Optical
Color Correction Filter	-	-	Ø 12.5 mm	Contact Supplier	$ 28.22
Product Code Diameter 12.5 mm Dimensions Ø 12.5 mm Thickness 1.1 mm Shape Round Surface Quality 60-40 scratch-dig Clear Aperture 11.25 mm Substrate Borosilicate Thickness Tolerance ±0.2 mm Diameter Tolerance +0/-0.2 mm Length Tolerance ±0.25 mm Width Tolerance ±0.25 mm Supplier Location United Kingdom; Rhode Island, USA See product details More from Knight Optical
Dichroic Filter	400 - 700 nm	-	Ø 15 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 400 - 700 nm Reflectance 30% (400 - 700 nm) Diameter 15 mm Dimensions Ø 15 mm Thickness 1 mm Shape Round Angle of Incidence 45° Reflectance Tolerance ±10% Supplier Location Vermont, USA See product details More from omega optical
Dichroic Filter	625 - 650 nm	-	Ø 12.5 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 625 - 650 nm Cut-On Wavelength 725 nm Reflectance > 90% (625 - 650 nm) Diameter 12.5 mm Dimensions Ø 12.5 mm Thickness 2 mm Shape Round Angle of Incidence 45° Supplier Location Vermont, USA See product details More from omega optical
Bandpass Filter	-	> 85% (540 nm, Minimum)	50 x 50 mm	1 weeks	$ 107.00
Product Code Transmittance > 85% (540 nm, Minimum) Dimensions 50 x 50 mm Thickness 1 mm Parallelism 3' Shape Square Angle of Incidence 0° Surface Quality 80-50 scratch-dig Clear Aperture 47.5 x 47.5 mm Surface Irregularity 5λ (Flatness) Applications Fluorescence Imaging Microscopy Supplier Location New Hampshire, USA See product details More from Andover
Cold Mirror	-	85% (750 - 1200 nm, Minimum)	-	Contact Supplier	Add to cart to request quote
Product Code Coating Dielectric Reflectance 90% (420 - 630 nm) Transmittance 85% (750 - 1200 nm, Minimum) Thickness 1 mm Parallelism < 3' Angle of Incidence 45° Surface Quality 60-40 scratch-dig Thickness Tolerance +0.25/-0 mm Supplier Location Vermont, USA See product details More from omega optical
Color Filter	-	> 85% (390 - 530 nm, Average) < 1% (585 - 710 nm, Average) < 1% (400 - 460 nm, 505 nm, 575 nm, Average, Average, Peak)	Ø 25.4 mm (1")	In stock	$ 29.57
Product Code Transmittance > 85% (390 - 530 nm, Average) < 1% (585 - 710 nm, Average) < 1% (400 - 460 nm, 505 nm, 575 nm, Average, Average, Peak) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 2 mm Shape Round Angle of Incidence 0° Surface Quality 80-50 scratch-dig Clear Aperture Ø 22.9 mm Substrate Borofloat Thickness Tolerance +0.2/-0.5 mm Diameter Tolerance +0/-0.25 mm Operating Temperature -50 to 80 °C Mount Non-Threaded Mount, 25.4 mm Supplier Location New Jersey, USA See product details More from Thorlabs
Dichroic Filter	570 - 645 nm	-	36 x 25.7 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 570 - 645 nm Cut-On Wavelength 650 nm Reflectance > 90% (570 - 645 nm) Dimensions 36 x 25.7 mm Thickness 1 mm Parallelism < 15'' Shape Rectangular Angle of Incidence 45° (Half-Cone) Length 25.7 mm Width 36 mm (+0.1/-0.25) Transmitted Wavefront Error λ/4 (80%, RMS) Supplier Location Vermont, USA See product details More from omega optical
Square Mirror	400 - 700 nm	> 80% (420 - 470 nm)	50 x 50 mm	2 weeks	$ 156.00
Product Code Wavelength Range 400 - 700 nm Transmission Wavelength 420 - 470 nm Transmittance > 80% (420 - 470 nm) Dimensions 50 x 50 mm Thickness 1 mm Shape Square Angle of Incidence 45° Surface Quality 60-40 scratch-dig Substrate B 270 Weight 7 g Supplier Location California, USA See product details More from OptoSigma
Color Correction Filter	-	-	Ø 12.5 mm	Contact Supplier	$ 28.22
Product Code Diameter 12.5 mm Dimensions Ø 12.5 mm Thickness 1.1 mm Shape Round Surface Quality 60-40 scratch-dig Clear Aperture 11.25 mm Substrate Borosilicate Thickness Tolerance ±0.2 mm Diameter Tolerance +0/-0.2 mm Length Tolerance ±0.25 mm Width Tolerance ±0.25 mm Supplier Location United Kingdom; Rhode Island, USA See product details More from Knight Optical
Dichroic Filter	-	-	Ø 20 mm	Contact Supplier	Add to cart to request quote
Product Code Diameter 20 mm Dimensions Ø 20 mm Thickness 1 mm Shape Round Supplier Location Vermont, USA See product details More from omega optical