Optical Filters for Colorimetry Applications

Unmatched Accuracy in Color Measurement

Highly accurate filters with small f1' errors matching the CIE 1931 Standard Observer - our CIE tristimulus filters are used in colorimeters and photometers across a wide range of industries

Tristimulus Filters Developed to Meet Demanding Requirements

Tristimulus Filters are durable sputter-coated dielectric filters developed to meet the demanding requirements of a variety of industries.

illustration of a tristimulus inspection system inspecting a smartphone display

Brochure

Download to learn more about our optical filters for use in Colorimetry Applications

Applications and Industries

Highly accurate filters with small f1' errors matching the CIE 1931 Standard Observer. Our Tristimulus filters are used in colorimeters and photometers across a wide range of industries including:

  • Electronic Displays

  • Handheld Devices (smartphones and tablets)

  • Automotive

  • Aerospace

  • Projection

  • Lighting, LEDs, Architectural Illumination

  • Paint, Paper, and Textiles

Interview with John Atkinson on Tristimulus

CIE Tristimulus Filters Designed for Your Unique Requirements

Chroma Technology designs and manufactures customized filters that consider the response function of the detector and/or the spectral power distribution of a light source. We understand that every color measurement application has its distinct challenges. Whether you need filters matching the Standard Observer functions or your Customized functions, we’ve got your solution. That's why we offer comprehensive customization options for our tristimulus filters, ensuring they perfectly match your specific light source or detector requirements. 

Accuracy in Display Measurement

Applications using colorimeters to measure color fidelity depend on highly accurate optical filters like Chroma Technology’s Tristimulus filters.

Display to be measured

spectra for display measurementCommon display types include AMOLED, OLED and QLED but any light emitting display which can be calibrated should be measured.

Accurate Filters

spectra for tristimulus filtersIn a colorimeter, light passes through the tristimulus filters which match the intended color matching functions. Chroma Technology also designs and manufactures Customized filters which take into account the response function of the detector and/or the spectral power distribution of a light source. Whether you need filters matching the Standard Observer functions or your own Customized functions, we’ve got your solution.

Accurate Result

spectra displaying the CIE standard observer functions

Accurate filters increase the accuracy of the measurement of your display’s spectral power distribution, allowing you to accurately calibrate your display.

Accuracy in Filter Manufacturing

The smaller the f1' number, the more accurately the filter matches the intended response function. With highly accurate filters matched to your Customized functions, we make the corrections for you. Contact us to see what we can do for your application.

CIE Tristimulus Filters

Highly accurate filters with small f1' errors matching the CIE 1931 Standard Observer. Contact us for Customized Tristimulus filters to match your detector response function and light sources.

f1'  Error %

CIE 1931 Standard Observer x̄

Chroma x̄ Filter

≤ 3%

CIE 1931 Standard Observer x̄

Chroma ȳ Filter

≤ 3%

CIE 1931 Standard Observer x

Chroma z̄ Filter

≤ 3.5%

If you don’t see what you are looking for, please contact us. We have a large inventory of filters and a knowledgeable staff ready to help you design and build a filter to meet your specifications.

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