DICHROIC FILTERS
General Specifications
Spectral Curves

 

 

DICHROIC FILTERS

Dichroic filters (color separation filters) are used in a variety of applications where it is necessary to isolate certain regions of the visible spectrum. A few of the more common applications are for use in color enlargers and photocopiers as light balancing filters. They are also very useful in any application where it may be desirable to separate the incident energy into two or more light beams. The following spectral curves are displayed at normal incidence, but for many applications, such as combining colors, it may be desirable to use them in the reflecting mode at a 45° angle of incidence.

All of the coating materials used in these filters produce hard, durable dielectric films which show no signs of degradation with age and use. Unlike the organic dye or gelatin type which will fade with usage these filters are very stable and should not suffer any loss in efficiency with time. These filters are also available in sets. Filters can also be mounted in threaded rings.

BENEFITS 
  • Provide sharp separation between transmission and reflection
  • Spectrally stable at changing temperatures and humidity
  • Available in custom designs, colors, angles of incidence, substrates, dimensions, and coatings
COMMON APPLICATIONS
  • Fluorescence microscopy
  • UV-VIS Irradiation
  • Camera imaging
  • Stage lighting
  • Architectural lighting
  • Projection displays
  • Color enlargers
  • Photocopiers

Custom sizes, substrates and spectral characteristics are available on request. Contact us for a quotation.

Dichroic Filters General Specifications
Thickness:  1.0mm ±0.25mm
Size Tolerance:  +0.0mm/-0.25mm
Min. Clear Aperture:  95% of outside dimension
Substrate Material:  Soda lime glass
Flatness:  3–5 waves per 25mm
Parallelism:  3 arc minutes or better
Surface Quality:  80/50 per MIL-C-48497A
Humidity and Abrasion:  Per MIL-C-48497A
Max. Operating Temp: +200°C
Mechanical: Unmounted
DESCRIPTION
PART NO.
1 - 5 pcs.
> 5 pcs.
QTY In Stock
Buy
Blue Reflective Dichroic Filter, 25mm diameter
475FD68-25
$34.00
$32.00
3
Filter TypeBlue Dichroic Reflective
Transmission>85% avg. from 525 to 800nm
Reflection
Nominal 50% point(s)- 475nm cut-on (nominal) - T(avg) < 10% from 380 to 450nm - T(avg) > 85% from 525 to 800nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence45.0°
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$34.00
> 5 pcs.$32.00

Estimated Delivery: 2-3 Days
Blue Reflective Dichroic Filter, 50mm diameter
475FD68-50
$65.00
$62.00
4
Filter TypeBlue Dichroic Reflective
Transmission>85% avg. from 525 to 800nm
Reflection
Nominal 50% point(s)- 475nm cut-on (nominal) - T(avg) < 10% from 380 to 450nm - T(avg) > 85% from 525 to 800nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence45.0°
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Blue Reflective Dichroic Filter, 50mm x 50mm
475FD68-50S
$67.00
$64.00
4
Filter TypeBlue Dichroic Reflective
Transmission>85% avg. from 525 to 800nm
Reflection
Nominal 50% point(s)- 475nm cut-on (nominal) - T(avg) < 10% from 380 to 450nm - T(avg) > 85% from 525 to 800nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence45.0°
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$67.00
> 5 pcs.$64.00

Estimated Delivery: 2-3 Days
Blue Additive Dichroic Filter, 25mm diameter
505FD64-25
$34.00
$32.00
0
Filter TypeBlue Dichroic Additive
Transmission>80% avg. from 390 to 480nm
Reflection
Nominal 50% point(s)505nm cut-off (nominal) >80% (avg) trans. from 390nm to 480nm >99% (avg) Refl. from 540nm to 750nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$34.00
> 5 pcs.$32.00

Estimated Delivery: 2-3 Days
Blue Additive Dichroic Filter, 50mm diameter
505FD64-50
$65.00
$62.00
4
Filter TypeBlue Dichroic Additive
Transmission>80% avg. from 390 to 480nm
Reflection
Nominal 50% point(s)505nm cut-off (nominal) >80% (avg) trans. from 390nm to 480nm >99% (avg) Refl. from 540nm to 750nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Blue Additive Dichroic Filter, 50mm x 50mm
505FD64-50S
$67.00
$64.00
19
Filter TypeBlue Dichroic Additive
Transmission>80% avg. from 390 to 480nm
Reflection
Nominal 50% point(s)505nm cut-off (nominal) >80% (avg) trans. from 390nm to 480nm >99% (avg) Refl. from 540nm to 750nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$67.00
> 5 pcs.$64.00

Estimated Delivery: 2-3 Days
Yellow Subtractive Dichroic Filter, 25mm diameter
520FD22-25
$34.00
$32.00
14
Filter TypeYellow Dichroic Subtractive
Transmission>85% avg. from 550 to 750nm
Reflection
Nominal 50% point(s)50% pt.: 520nm nominal T(avg) < 1% from 410 - 475nm T(avg) > 85% from 550 - 750nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$34.00
> 5 pcs.$32.00

Estimated Delivery: 2-3 Days
Yellow Subtractive Dichroic Filter, 50mm diameter
520FD22-50
$65.00
$62.00
8
Filter TypeYellow Dichroic Subtractive
Transmission>85% avg. from 550 to 750nm
Reflection
Nominal 50% point(s)50% pt.: 520nm nominal T(avg) < 1% from 410 - 475nm T(avg) > 85% from 550 - 750nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Yellow Subtractive Dichroic Filter, 50mm x 50mm
520FD22-50S
$67.00
$64.00
5
Filter TypeYellow Dichroic Subtractive
Transmission>85% avg. from 550 to 750nm
Reflection
Nominal 50% point(s)50% pt.: 520nm nominal T(avg) < 1% from 410 - 475nm T(avg) > 85% from 550 - 750nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$67.00
> 5 pcs.$64.00

Estimated Delivery: 2-3 Days
Green Additive Dichroic Filter, 25mm diameter
540FD66-25
$34.00
$32.00
23
Filter TypeGreen Dichroic Additive
Transmission>85% min. at 540nm
Reflection
Nominal 50% point(s)505nm & 575nm (nominal) T(avg) < 1% from 380 - 460nm T(abs) > 85% @ 540nm T(avg) < 1% from 600 - 730nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$34.00
> 5 pcs.$32.00

Estimated Delivery: 2-3 Days
Green Additive Dichroic Filter, 50mm diameter
540FD66-50
$65.00
$62.00
4
Filter TypeGreen Dichroic Additive
Transmission>85% min. at 540nm
Reflection
Nominal 50% point(s)505nm & 575nm (nominal) T(avg) < 1% from 380 - 460nm T(abs) > 85% @ 540nm T(avg) < 1% from 600 - 730nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Green Additive Dichroic Filter, 50mm x 50mm
540FD66-50S
$67.00
$64.00
1
Filter TypeGreen Dichroic Additive
Transmission>85% min. at 540nm
Reflection
Nominal 50% point(s)505nm & 575nm (nominal) T(avg) < 1% from 380 - 460nm T(abs) > 85% @ 540nm T(avg) < 1% from 600 - 730nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$67.00
> 5 pcs.$64.00

Estimated Delivery: 2-3 Days
Magenta Subtractive Dichroic Filter, 25mm diameter
550FD26-25
$34.00
$32.00
20
Filter TypeMagenta Dichroic Subtractive
Transmission>80% avg. from 380 to 475nm & 650 to 750nm
Reflection
Nominal 50% point(s)495nm and 605nm (nominal) T(avg) > 80% from 380 - 475nm T(avg) < 1% from 535 - 565nm T(avg) > 80% from 650 - 750nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$34.00
> 5 pcs.$32.00

Estimated Delivery: 2-3 Days
Magenta Subtractive Dichroic Filter, 50mm diameter
550FD26-50
$65.00
$62.00
9
Filter TypeMagenta Dichroic Subtractive
Transmission>80% avg. from 380 to 475nm & 650 to 750nm
Reflection
Nominal 50% point(s)495nm and 605nm (nominal) T(avg) > 80% from 380 - 475nm T(avg) < 1% from 535 - 565nm T(avg) > 80% from 650 - 750nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Magenta Subtractive Dichroic Filter, 50mm x 50mm
550FD26-50S
$67.00
$64.00
3
Filter TypeMagenta Dichroic Subtractive
Transmission>80% avg. from 380 to 475nm & 650 to 750nm
Reflection
Nominal 50% point(s)495nm and 605nm (nominal) T(avg) > 80% from 380 - 475nm T(avg) < 1% from 535 - 565nm T(avg) > 80% from 650 - 750nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$67.00
> 5 pcs.$64.00

Estimated Delivery: 2-3 Days
Red Reflective Dichroic Filter, 25mm diameter
580FD70-25
$34.00
$32.00
20
Filter TypeRed Dichroic Reflective
Transmission>85% avg. from 400 to 550nm
Reflection
Nominal 50% point(s)50% pt.: 580nm nominal T(avg) > 85% from 400 - 550nm T(avg) < 10% from 610 - 725nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence45.0°
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$34.00
> 5 pcs.$32.00

Estimated Delivery: 2-3 Days
Red Reflective Dichroic Filter, 50mm diameter
580FD70-50
$65.00
$62.00
0
Filter TypeRed Dichroic Reflective
Transmission>85% avg. from 400 to 550nm
Reflection
Nominal 50% point(s)50% pt.: 580nm nominal T(avg) > 85% from 400 - 550nm T(avg) < 10% from 610 - 725nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence45.0°
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Red Reflective Dichroic Filter, 50mm x 50mm
580FD70-50S
$67.00
$64.00
0
Filter TypeRed Dichroic Reflective
Transmission>85% avg. from 400 to 550nm
Reflection
Nominal 50% point(s)50% pt.: 580nm nominal T(avg) > 85% from 400 - 550nm T(avg) < 10% from 610 - 725nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence45.0°
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$67.00
> 5 pcs.$64.00

Estimated Delivery: 2-3 Days
Red Additive Dichroic Filter, 25mm diameter
585FD62-25
$34.00
$32.00
18
Filter TypeRed Dichroic Additive
Transmission>80% avg. from 610 to 730nm
Reflection
Nominal 50% point(s)50% pt: 585nm nominal T(avg) < 1% from 370 - 550nm T(avg) > 80% from 610 - 730nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$34.00
> 5 pcs.$32.00

Estimated Delivery: 2-3 Days
Red Additive Dichroic Filter, 50mm diameter
585FD62-50
$65.00
$62.00
2
Filter TypeRed Dichroic Additive
Transmission>80% avg. from 610 to 730nm
Reflection
Nominal 50% point(s)50% pt: 585nm nominal T(avg) < 1% from 370 - 550nm T(avg) > 80% from 610 - 730nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Red Additive Dichroic Filter, 50mm x 50mm
585FD62-50S
$67.00
$64.00
2
Filter TypeRed Dichroic Additive
Transmission>80% avg. from 610 to 730nm
Reflection>99% avg. from 370 to 550nm
Nominal 50% point(s)50% pt: 585nm nominal T(avg) < 1% from 370 - 550nm T(avg) > 80% from 610 - 730nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$67.00
> 5 pcs.$64.00

Estimated Delivery: 2-3 Days
Cyan Subtractive Dichroic Filter, 25mm diameter
590FD24-25
$34.00
$32.00
13
Filter TypeCyan Dichroic Subtractive
Transmission>80% avg. from 400 to 550nm
Reflection
Nominal 50% point(s)50% pt.: 590nm nominal T(avg) > 80% from 400 - 550nm T(avg) < 1% from 640 - 740nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$34.00
> 5 pcs.$32.00

Estimated Delivery: 2-3 Days
Cyan Subtractive Dichroic Filter, 50mm diameter
590FD24-50
$65.00
$62.00
8
Filter TypeCyan Dichroic Subtractive
Transmission>80% avg. from 400 to 550nm
Reflection
Nominal 50% point(s)50% pt.: 590nm nominal T(avg) > 80% from 400 - 550nm T(avg) < 1% from 640 - 740nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Cyan Subtractive Dichroic Filter, 50mm x 50mm
590FD24-50S
$67.00
$64.00
1
Filter TypeCyan Dichroic Subtractive
Transmission>80% avg. from 400 to 550nm
Reflection
Nominal 50% point(s)50% pt.: 590nm nominal T(avg) > 80% from 400 - 550nm T(avg) < 1% from 640 - 740nm
Size+0/-0.25mm
Thickness1.0 +0.25/-0.25 mm
Angle of Incidence
Operating Temp. (°C.)+200 max.
QuantityPrice
1 - 5 pcs.$67.00
> 5 pcs.$64.00

Estimated Delivery: 2-3 Days