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Dichroic Color Filter

45° Reflective Dichroic Color Filters

DELN 45° Reflective Dichroic Color Filters are designed to be used at a 45° angle of incidence and will reflect the stated color while transmitting the remaining visible wavelengths. 

Each filter provides greater than 98% reflection over the specified color range and greater than 90% transmission of the remaining wavelengths.

Specifications

Material

BK7, Fused Silica, Borofloat, B270, or other

Dimension Tolerance

+0.0/-0.1mm

Thickness Tolerance

±0.2mm

Wavelength Tolerance

15nm

Clear Aperture

>90%

Surface Quality

60/40 or better

AOI

45deg

Coating1 - Red

T>90% @ 400 – 595nm, Ravg > 98% @ 640-750nm

Coating2 - Green

T>90% @ 600 – 800nm, Ravg >98% @ 520-555nm

Coating3 - Blue

T>90% @ 530 – 800nm, Ravg > 98% @ 400 - 475nm

Coating4 - Cyan

T>90% @ 625 – 725nm, Ravg > 98% @ 400 - 565nm

Coating5 - Yellow

T>90% @ 400 – 495nm, Ravg > 98% @ 550 - 725nm

Coating6 - Magenta

T>90% @ 520 – 580nm, Ravg > 98% @ 400 - 465nm & 635 - 725nm



0° Dichroic Color Filters

DELN 0° Dichroic Color Filters are commonly used for color separation and contrast enhancement applications. these filters are easily integrated into a variety of existing camera and illumination setups.

Typical configurations include photo enlargers, beam separation, and placing filters in front an imaging lens to selectively isolate spectral regions/colors. If the light source is already colored (i.e., red LEDs), then a filter in front of the lens can be used to filter out unwanted ambient light.


Specifications

Material

Borofloat, B270, or other

Dimension Tolerance

+0.0/-0.1mm

Thickness Tolerance

±0.2mm

Wavelength Tolerance

15nm

Clear Aperture

>90%

Surface Quality

60/40

AOI

0 deg

Coating1 - Red

Tavg <1.0% @ 390 - 570nm, Tavg >85% @ 620 - 750nm

Coating2 - Green

Tavg <1.0% @ 400 - 480nm,
Tavg >80% @ 525 - 555nm,
Tavg <1.0% @ 590 - 720nm

Coating3 - Blue

Tavg >85% @ 390 - 485nm, Tavg <1.0% @ 525 - 750nm

Coating4 - Cyan

Tavg >80% @ 400 - 550nm, Tavg <1.0% @ 640 - 740nm

Coating5 - Yellow

Tavg <1.0% @ 400 - 475nm, Tavg >80% @ 550 - 750nm

Coating6 - Magenta

Tavg <1.0% @ 535 - 565nm, Tavg >80% @ 640 - 740nm


 

 

 

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