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Family ID The Family ID is used to identify product family presentations and can be used to quickly access presentations utilizing the search. #3386

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

Dichroic Longpass Filters

Ideal for Fluorescence or Multispectral Imaging
Sharp Cut-On Wavelength
Broad Transmission and Reflection Ranges

Our TECHSPEC® Dichroic Longpass Filters are designed for a 45° angle of incidence. The rejected light is reflected at 90°, making these filters ideal for use in fluorescence applications or as spectral beamsplitters. These hard coated filters feature low polarization dependence, broad spectral ranges, and a precision fused silica substrate. Reflection and transmission curves are available to easily integrate TECHSPEC® Dichroic Longpass Filters into any application.

Note: The chevron on the edge of the filter points towards surface S1 with the primary filter coating on which the light should be incident.

Common Specifications

Thickness (mm):

1.05

Thickness Tolerance (mm):

±0.1

Dimensional Tolerance (mm):

+0.0/-0.2

Physical Durability:

Adhesion per MIL-PRF-13830B, Section C.4.5.12
Moderate abrasion per MIL-PRF-13830B, Section C.4.5.11
Cleaning per MIL-C-48497A Section 4.5.4.2

Angle of Incidence (°):

Substrate:

Fused Silica (Corning 7980)

Coating:

Hard Coated

Reflection (%):

>97, Average Polarization
>95, Absolute Polarization

Surface Quality:

60-40

Transmission (%):

>85, Average Polarization
>80, Absolute Polarization

Transmitted Wavefront Tolerance:

λ/4

Cut-On Tolerance (%):

±2

Slope Factor (%):

3.00

Environmental Durability:

Humidity per MIL-STD-810H, Section 507.6
Temperature per MIL-STD-810H, Section 501.7 and 502.7

Products
Product Details
Technical Information
Accessories
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Resources

Products

Dimensions (mm)	Dia. (mm)	Cut-On Wavelength (nm)	Thickness (mm)	Reflection Wavelength (nm)	Transmission Wavelength (nm)	Stock Number	Price	Buy

- -	12.50 12.50	400.00 400.00	1.05 1.05	350 - 375 350 - 375	420 - 1600 420 - 1600	#69-864	130,00 €130,00 Qty 6+ €103,00 Request Quote	3-4 days ×
12.5 x 17.6 12.5 x 17.6	- -	400.00 400.00	1.05 1.05	350 - 375 350 - 375	420 - 1600 420 - 1600	#69-875	130,00 €130,00 Qty 6+ €103,00 Request Quote	3-4 days ×
- -	25.00 25.00	400.00 400.00	1.05 1.05	350 - 375 350 - 375	420 - 1600 420 - 1600	#69-886	174,00 €174,00 Qty 6+ €140,00 Request Quote	3-4 days ×
25.2 x 35.6 25.2 x 35.6	- -	400.00 400.00	1.05 1.05	350 - 375 350 - 375	420 - 1600 420 - 1600	#69-897	174,00 €174,00 Qty 6+ €140,00 Request Quote	In Stock ×
- -	12.50 12.50	450.00 450.00	1.05 1.05	350 - 430 350 - 430	470 - 1600 470 - 1600	#69-865	130,00 €130,00 Qty 6+ €103,00 Request Quote	Contact Us ×
12.5 x 17.6 12.5 x 17.6	- -	450.00 450.00	1.05 1.05	350 - 430 350 - 430	470 - 1600 470 - 1600	#69-876	130,00 €130,00 Qty 6+ €103,00 Request Quote	In Stock ×
- -	25.00 25.00	450.00 450.00	1.05 1.05	350 - 430 350 - 430	470 - 1600 470 - 1600	#69-887	174,00 €174,00 Qty 6+ €140,00 Request Quote	In Stock ×
25.2 x 35.6 25.2 x 35.6	- -	450.00 450.00	1.05 1.05	350 - 430 350 - 430	470 - 1600 470 - 1600	#69-898	174,00 €174,00 Qty 6+ €140,00 Request Quote	In Stock ×
- -	12.50 12.50	500.00 500.00	1.05 1.05	350 - 480 350 - 480	520 - 1600 520 - 1600	#69-866	130,00 €130,00 Qty 6+ €103,00 Request Quote	In Stock ×
12.5 x 17.6 12.5 x 17.6	- -	500.00 500.00	1.05 1.05	350 - 480 350 - 480	520 - 1600 520 - 1600	#69-877	130,00 €130,00 Qty 6+ €103,00 Request Quote	In Stock ×
- -	25.00 25.00	500.00 500.00	1.05 1.05	350 - 480 350 - 480	520 - 1600 520 - 1600	#69-888	174,00 €174,00 Qty 6+ €140,00 Request Quote	3-4 days ×
25.2 x 35.6 25.2 x 35.6	- -	500.00 500.00	1.05 1.05	350 - 480 350 - 480	520 - 1600 520 - 1600	#69-899	174,00 €174,00 Qty 6+ €140,00 Request Quote	3-4 days ×
- -	12.50 12.50	550.00 550.00	1.05 1.05	415 - 515 415 - 515	575 - 1600 575 - 1600	#69-867	130,00 €130,00 Qty 6+ €103,00 Request Quote	3-4 days ×
12.5 x 17.6 12.5 x 17.6	- -	550.00 550.00	1.05 1.05	415 - 515 415 - 515	575 - 1600 575 - 1600	#69-878	130,00 €130,00 Qty 6+ €103,00 Request Quote	In Stock ×
- -	25.00 25.00	550.00 550.00	1.05 1.05	415 - 515 415 - 515	575 - 1600 575 - 1600	#69-889	174,00 €174,00 Qty 6+ €140,00 Request Quote	In Stock ×
25.2 x 35.6 25.2 x 35.6	- -	550.00 550.00	1.05 1.05	415 - 515 415 - 515	575 - 1600 575 - 1600	#69-900	174,00 €174,00 Qty 6+ €140,00 Request Quote	In Stock ×
- -	12.50 12.50	600.00 600.00	1.05 1.05	460 - 570 460 - 570	625 - 1600 625 - 1600	#69-868	130,00 €130,00 Qty 6+ €103,00 Request Quote	In Stock ×
12.5 x 17.6 12.5 x 17.6	- -	600.00 600.00	1.05 1.05	460 - 570 460 - 570	625 - 1600 625 - 1600	#69-879	130,00 €130,00 Qty 6+ €103,00 Request Quote	3-4 days ×
- -	25.00 25.00	600.00 600.00	1.05 1.05	460 - 570 460 - 570	625 - 1600 625 - 1600	#69-890	174,00 €174,00 Qty 6+ €140,00 Request Quote	3-4 days ×
25.2 x 35.6 25.2 x 35.6	- -	600.00 600.00	1.05 1.05	460 - 570 460 - 570	625 - 1600 625 - 1600	#69-901	174,00 €174,00 Qty 6+ €140,00 Request Quote	3-4 days ×
- -	12.50 12.50	650.00 650.00	1.05 1.05	495 - 610 495 - 610	675 - 1600 675 - 1600	#69-869	130,00 €130,00 Qty 6+ €103,00 Request Quote	3-4 days ×
12.5 x 17.6 12.5 x 17.6	- -	650.00 650.00	1.05 1.05	495 - 610 495 - 610	675 - 1600 675 - 1600	#69-880	130,00 €130,00 Qty 6+ €103,00 Request Quote	3-4 days ×
- -	25.00 25.00	650.00 650.00	1.05 1.05	495 - 610 495 - 610	675 - 1600 675 - 1600	#69-891	174,00 €174,00 Qty 6+ €140,00 Request Quote	3-4 days ×
25.2 x 35.6 25.2 x 35.6	- -	650.00 650.00	1.05 1.05	495 - 610 495 - 610	675 - 1600 675 - 1600	#69-902	174,00 €174,00 Qty 6+ €140,00 Request Quote	3-4 days ×
- -	12.50 12.50	700.00 700.00	1.05 1.05	535 - 660 535 - 660	725 - 1600 725 - 1600	#69-870	130,00 €130,00 Qty 6+ €103,00 Request Quote	3-4 days ×
12.5 x 17.6 12.5 x 17.6	- -	700.00 700.00	1.05 1.05	535 - 660 535 - 660	725 - 1600 725 - 1600	#69-881	130,00 €130,00 Qty 6+ €103,00 Request Quote	3-4 days ×
- -	25.00 25.00	700.00 700.00	1.05 1.05	535 - 660 535 - 660	725 - 1600 725 - 1600	#69-892	174,00 €174,00 Qty 6+ €140,00 Request Quote	3-4 days ×
25.2 x 35.6 25.2 x 35.6	- -	700.00 700.00	1.05 1.05	535 - 660 535 - 660	725 - 1600 725 - 1600	#69-903	174,00 €174,00 Qty 6+ €140,00 Request Quote	3-4 days ×
- -	12.50 12.50	750.00 750.00	1.05 1.05	565 - 715 565 - 715	780 - 1600 780 - 1600	#69-871	132,00 €132,00 Qty 6+ €105,00 Request Quote	3-4 days ×
12.5 x 17.6 12.5 x 17.6	- -	750.00 750.00	1.05 1.05	565 - 715 565 - 715	780 - 1600 780 - 1600	#69-882	132,00 €132,00 Qty 6+ €105,00 Request Quote	3-4 days ×
- -	25.00 25.00	750.00 750.00	1.05 1.05	565 - 715 565 - 715	780 - 1600 780 - 1600	#69-893	180,00 €180,00 Qty 6+ €144,00 Request Quote	In Stock ×
25.2 x 35.6 25.2 x 35.6	- -	750.00 750.00	1.05 1.05	565 - 715 565 - 715	780 - 1600 780 - 1600	#69-904	180,00 €180,00 Qty 6+ €144,00 Request Quote	Contact Us ×
- -	12.50 12.50	800.00 800.00	1.05 1.05	600 - 760 600 - 760	830 - 1600 830 - 1600	#69-872	132,00 €132,00 Qty 6+ €105,00 Request Quote	In Stock ×
12.5 x 17.6 12.5 x 17.6	- -	800.00 800.00	1.05 1.05	600 - 760 600 - 760	830 - 1600 830 - 1600	#69-883	132,00 €132,00 Qty 6+ €105,00 Request Quote	3-4 days ×
- -	25.00 25.00	800.00 800.00	1.05 1.05	600 - 760 600 - 760	830 - 1600 830 - 1600	#69-894	180,00 €180,00 Qty 6+ €144,00 Request Quote	3-4 days ×
25.2 x 35.6 25.2 x 35.6	- -	800.00 800.00	1.05 1.05	600 - 760 600 - 760	830 - 1600 830 - 1600	#69-905	180,00 €180,00 Qty 6+ €144,00 Request Quote	3-4 days ×
- -	12.50 12.50	850.00 850.00	1.05 1.05	635 - 805 635 - 805	880 - 1600 880 - 1600	#69-873	132,00 €132,00 Qty 6+ €105,00 Request Quote	3-4 days ×
12.5 x 17.6 12.5 x 17.6	- -	850.00 850.00	1.05 1.05	635 - 805 635 - 805	880 - 1600 880 - 1600	#69-884	132,00 €132,00 Qty 6+ €105,00 Request Quote	3-4 days ×
- -	25.00 25.00	850.00 850.00	1.05 1.05	635 - 805 635 - 805	880 - 1600 880 - 1600	#69-895	180,00 €180,00 Qty 6+ €144,00 Request Quote	3-4 days ×
25.2 x 35.6 25.2 x 35.6	- -	850.00 850.00	1.05 1.05	635 - 805 635 - 805	880 - 1600 880 - 1600	#69-906	180,00 €180,00 Qty 6+ €144,00 Request Quote	In Stock ×
- -	12.50 12.50	900.00 900.00	1.05 1.05	675 - 855 675 - 855	935 - 1600 935 - 1600	#69-874	132,00 €132,00 Qty 6+ €105,00 Request Quote	In Stock ×
12.5 x 17.6 12.5 x 17.6	- -	900.00 900.00	1.05 1.05	675 - 855 675 - 855	935 - 1600 935 - 1600	#69-885	132,00 €132,00 Qty 6+ €105,00 Request Quote	3-4 days ×
- -	25.00 25.00	900.00 900.00	1.05 1.05	675 - 855 675 - 855	935 - 1600 935 - 1600	#69-896	180,00 €180,00 Qty 6+ €144,00 Request Quote	3-4 days ×
25.2 x 35.6 25.2 x 35.6	- -	900.00 900.00	1.05 1.05	675 - 855 675 - 855	935 - 1600 935 - 1600	#69-907	180,00 €180,00 Qty 6+ €144,00 Request Quote	3-4 days ×
- -	12.50 12.50	950.00 950.00	1.05 1.05	715 - 900 715 - 900	985 - 1600 985 - 1600	#87-027	132,00 €132,00 Qty 6+ €105,00 Request Quote	3-4 days ×
12.5 x 17.6 12.5 x 17.6	- -	950.00 950.00	1.05 1.05	715 - 900 715 - 900	985 - 1600 985 - 1600	#87-033	132,00 €132,00 Qty 6+ €105,00 Request Quote	3-4 days ×
- -	25.00 25.00	950.00 950.00	1.05 1.05	715 - 900 715 - 900	985 - 1600 985 - 1600	#87-039	180,00 €180,00 Qty 6+ €144,00 Request Quote	3-4 days ×
25.2 x 35.6 25.2 x 35.6	- -	950.00 950.00	1.05 1.05	715 - 900 715 - 900	985 - 1600 985 - 1600	#87-045	180,00 €180,00 Qty 6+ €144,00 Request Quote	3-4 days ×
- -	12.50 12.50	1,000.00 1,000.00	1.05 1.05	750 - 950 750 - 950	1035 - 1600 1035 - 1600	#87-028	136,00 €136,00 Qty 6+ €108,00 Request Quote	In Stock ×
12.5 x 17.6 12.5 x 17.6	- -	1,000.00 1,000.00	1.05 1.05	750 - 950 750 - 950	1035 - 1600 1035 - 1600	#87-034	136,00 €136,00 Qty 6+ €108,00 Request Quote	3-4 days ×
- -	25.00 25.00	1,000.00 1,000.00	1.05 1.05	750 - 950 750 - 950	1035 - 1600 1035 - 1600	#87-040	185,00 €185,00 Qty 6+ €148,00 Request Quote	3-4 days ×
25.2 x 35.6 25.2 x 35.6	- -	1,000.00 1,000.00	1.05 1.05	750 - 950 750 - 950	1035 - 1600 1035 - 1600	#87-046	185,00 €185,00 Qty 6+ €148,00 Request Quote	3-4 days ×
- -	12.50 12.50	1,050.00 1,050.00	1.05 1.05	790 - 1000 790 - 1000	1085 - 1600 1085 - 1600	#87-029	136,00 €136,00 Qty 6+ €108,00 Request Quote	3-4 days ×
12.5 x 17.6 12.5 x 17.6	- -	1,050.00 1,050.00	1.05 1.05	790 - 1000 790 - 1000	1085 - 1600 1085 - 1600	#87-035	132,00 €132,00 Qty 6+ €105,00 Request Quote	3-4 days ×
- -	25.00 25.00	1,050.00 1,050.00	1.05 1.05	790 - 1000 790 - 1000	1085 - 1600 1085 - 1600	#87-041	185,00 €185,00 Qty 6+ €148,00 Request Quote	3-4 days ×
25.2 x 35.6 25.2 x 35.6	- -	1,050.00 1,050.00	1.05 1.05	790 - 1000 790 - 1000	1085 - 1600 1085 - 1600	#87-047	185,00 €185,00 Qty 6+ €148,00 Request Quote	3-4 days ×
- -	12.50 12.50	1,100.00 1,100.00	1.05 1.05	825 - 1045 825 - 1045	1135 - 1600 1135 - 1600	#87-030	136,00 €136,00 Qty 6+ €108,00 Request Quote	3-4 days ×
12.5 x 17.6 12.5 x 17.6	- -	1,100.00 1,100.00	1.05 1.05	825 - 1045 825 - 1045	1135 - 1600 1135 - 1600	#87-036	136,00 €136,00 Qty 6+ €108,00 Request Quote	3-4 days ×
- -	25.00 25.00	1,100.00 1,100.00	1.05 1.05	825 - 1045 825 - 1045	1135 - 1600 1135 - 1600	#87-042	185,00 €185,00 Qty 6+ €148,00 Request Quote	3-4 days ×
25.2 x 35.6 25.2 x 35.6	- -	1,100.00 1,100.00	1.05 1.05	825 - 1045 825 - 1045	1135 - 1600 1135 - 1600	#87-048	185,00 €185,00 Qty 6+ €148,00 Request Quote	3-4 days ×
- -	12.50 12.50	1,150.00 1,150.00	1.05 1.05	875 - 1095 875 - 1095	1190 - 1600 1190 - 1600	#87-031	136,00 €136,00 Qty 6+ €108,00 Request Quote	3-4 days ×
12.5 x 17.6 12.5 x 17.6	- -	1,150.00 1,150.00	1.05 1.05	875-1095 875-1095	1190 - 1600 1190 - 1600	#87-037	136,00 €136,00 Qty 6+ €108,00 Request Quote	3-4 days ×
- -	25.00 25.00	1,150.00 1,150.00	1.05 1.05	875 - 1095 875 - 1095	1190 - 1600 1190 - 1600	#87-043	185,00 €185,00 Qty 6+ €148,00 Request Quote	3-4 days ×
25.2 x 35.6 25.2 x 35.6	- -	1,150.00 1,150.00	1.05 1.05	875 - 1095 875 - 1095	1190 - 1600 1190 - 1600	#87-049	185,00 €185,00 Qty 6+ €148,00 Request Quote	Contact Us ×
- -	12.50 12.50	1,200.00 1,200.00	1.05 1.05	920 - 1160 920 - 1160	1240 - 1600 1240 - 1600	#87-032	136,00 €136,00 Qty 6+ €108,00 Request Quote	3-4 days ×
12.5 x 17.6 12.5 x 17.6	- -	1,200.00 1,200.00	1.05 1.05	920 - 1160 920 - 1160	1240 - 1600 1240 - 1600	#87-038	136,00 €136,00 Qty 6+ €108,00 Request Quote	3-4 days ×
- -	25.00 25.00	1,200.00 1,200.00	1.05 1.05	920 - 1160 920 - 1160	1240 - 1600 1240 - 1600	#87-044	185,00 €185,00 Qty 6+ €148,00 Request Quote	3-4 days ×
25.2 x 35.6 25.2 x 35.6	- -	1,200.00 1,200.00	1.05 1.05	920 - 1160 920 - 1160	1240 - 1600 1240 - 1600	#87-050	185,00 €185,00 Qty 6+ €148,00 Request Quote	3-4 days ×

Product Details

Hard coatings are used to increase durability while maintaining performance. The hard coating provides Dichroic Longpass Filters with high resistance to humidity, temperature, and abrasion, while also reducing the risk of damage when being handled.

Technical Information

Filter Type	Transmitted Wavefront (RMS)	Surface Quality	Surface Flatness (P-V)	R(avg)	T(avg)
HP Dichroic	λ/10	40-20	λ/2	>98%	>90%
Fluorescence Dichroics	1λ	60-40	-	>98%	>90%
Dichroic Longpass	λ/4	40-20	-	>97%	>85%

Accessories

Note: Compatible accessories for individual stock numbers may vary. If unsure about which accessories work with your products, please contact us here.

Title	Stock Number	Price	Buy

400 - 750nm, 25mm Dia., Dichroic Longpass Filter Kit (8 Filters)	#15-102	1.270,00 €1.270,00 Request Quote	Contact Us ×
800 - 1200nm, 25mm Dia., Dichroic Longpass Filter Kit (9 Filters)	#15-103	1.385,00 €1.385,00 Request Quote	3-4 days ×
400 - 750nm, 25.2 x 35.6mm, Dichroic Longpass Filter Kit (8 Filters)	#15-104	1.270,00 €1.270,00 Request Quote	Contact Us ×
800 - 1200nm, 25.2 x 35.6mm, Dichroic Longpass Filter Kit (9 Filters)	#15-105	1.385,00 €1.385,00 Request Quote	Contact Us ×

Resources

Filter

Confocal Microscopy

Confocal microscopy provides high resolution, elimination of out-of-focus glare due to spatial filtering, and reduction of light-induced damage to the sample.

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Custom Bandpass Filter using Shortpass and Longpass Filters

Do stock filters not meet your bandwidth or CWL requirements? Learn how custom bandpass filters are created using short or longpass filters at Edmund Optics.

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Optical Filter Orientation

Unsure which side of your filter should face the light source? Learn how to determine the filter orientation of your TECHSPEC filter at Edmund Optics.

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Optical Filters Review

Optical Filters are used to selectively transmit or block certain wavelengths or wavelength ranges within optical systems.

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Optical Filter Coatings: Comparison of Traditional and Hard-Sputtered

Confused about the differences between traditional-coated and hard-coated optical filters?

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Selecting Color Filter Glass for Life Science Applications

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What type of material should I look for in a filter?

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How are notch filters designed and manufactured?

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Bandpass Filter

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Bandwidth

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Cavity

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Dichroic Coating

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Dichroic Filter

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Filter, Colored Glass

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Ripple

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Trending in Optics: The Future of Optical Filters

New optical filters are being developed due to the advancements in applications and technologies. Learn more about the future of filters at Edmund Optics.

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Fluorophores and Optical Filters for Fluorescence Microscopy

Want to know more about fluorophores and optical filters for fluorescence microscopy? Find out more information and in stock optical filters at Edmund Optics.

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Optical Filters

Do you want to learn about optical filters? Find terminology, fabrication techniques, a selection guide, and application examples at Edmund Optics.

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Machine Vision Filter Technology

While working with machine vision, there are different types of filters that can be used to alter the image. Find out about the different types at Edmund Optics.

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Polarizers Review

Polarizers are used in a wide range of imaging and research and development applications.

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Manipulating Wavebands: Color & Filters

Nick Sischka explains why color consideration and illumination are so important for machine vision in this hands-on demonstration from the Edmund Optics 2021 Imaging Innovation Summit.

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What happens when a filter is tilted?

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How do I determine which side of my filter is coated?

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Blocking

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Blocking Range

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Central Wavelength (CWL)

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Cold Mirror

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Full Width at Half Maximum (FWHM)

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Interference Filter

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Notch Filter

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Peak Transmittance

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Rugate Notch Filter

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Shortpass Filter

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Fluorescence Imaging with Laser Illumination

Fluorescence imaging systems are composed of three major components, an illumination source, a photo-activated fluorophore sample, and detector.

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How do I clean my filters?

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What is the largest diameter filter available from Edmund Optics®?

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What are some of the most common filter substrates?

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How do I select the right filter for my application?

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What types of filters can Edmund Optics® manufacture?

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Do you have mounts for square or rectangular optics?

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Cut-Off Wavelength

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Cut-On Wavelength

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Filter

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Fluorescent Filter

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Optical Density (OD)

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Stopband

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Optical Microscopy Application: Fluorescence

Wondering how fluorescence microscopy works? Find out about the technique, systems, and more at Edmund Optics.

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Basic Principles of Raman Scattering and Spectroscopy

Raman spectroscopy is a technique used to identify the chemical composition of samples based on how light scatters off of them. Learn more & view related optics

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Fluorescence Microscopy: In-Line Illumination with Imaging Filters

Want to know about fluorescence microscopy? Read this article by a Biomedical Product Line Engineer at Edmund Optics to learn more.

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Removing Protective Plastic Coating

A protective plastic coating protects a variety of our flat optics, such as optical windows, optical mirrors, and beamsplitters, from scratches during shipping.

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Parallelism

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Surface Flatness

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How do I clean my optics?

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Clear Aperture (CA)

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Edmund Optics Global Manufacturing Facilities

Edmund Optics® (EO) manufactures millions of precision optical components and subassemblies every year in our 5 global manufacturing facilities.

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Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

Learn about the metrology that Edmund Optics® uses to guarantee the quality of all optical components and assemblies.

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Dichroic Longpass Filters

Can't find what you need?

Common Specifications

Products

Product Details

Technical Information

Accessories

Related Products

Resources

Confocal Microscopy

Custom Bandpass Filter using Shortpass and Longpass Filters

Optical Filter Orientation

Optical Filters Review

Optical Filter Coatings: Comparison of Traditional and Hard-Sputtered

Selecting Color Filter Glass for Life Science Applications

What type of material should I look for in a filter?

How are notch filters designed and manufactured?

Bandpass Filter

Bandwidth

Cavity

Dichroic Coating

Dichroic Filter

Filter, Colored Glass

Ripple

Trending in Optics: The Future of Optical Filters

Fluorophores and Optical Filters for Fluorescence Microscopy

Optical Filters

Machine Vision Filter Technology

Polarizers Review

Manipulating Wavebands: Color & Filters

What happens when a filter is tilted?

How do I determine which side of my filter is coated?

Blocking

Blocking Range

Central Wavelength (CWL)

Cold Mirror

Full Width at Half Maximum (FWHM)

Interference Filter

Notch Filter

Peak Transmittance

Rugate Notch Filter

Shortpass Filter

Fluorescence Imaging with Laser Illumination

How do I clean my filters?

What is the largest diameter filter available from Edmund Optics®?

What are some of the most common filter substrates?

How do I select the right filter for my application?

What types of filters can Edmund Optics® manufacture?

Do you have mounts for square or rectangular optics?

Cut-Off Wavelength

Cut-On Wavelength

Filter

Fluorescent Filter

Optical Density (OD)

Stopband

Optical Microscopy Application: Fluorescence

Basic Principles of Raman Scattering and Spectroscopy

Fluorescence Microscopy: In-Line Illumination with Imaging Filters

Removing Protective Plastic Coating

Parallelism

Surface Flatness

How do I clean my optics?

Clear Aperture (CA)

Edmund Optics Global Manufacturing Facilities

Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing