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TRI-Y-01 Tristimulus, CIE 1931 Standard Observer Y 

Semrock Part Number: TRI-Y-01-25

IDEX Part Number: FL-439771  /

Semrock
Tristimulus filters consist of three distinct color filters designed to match the color sensitivity of the human eye. Semrock Tristimulus Optical Filters provide the lowest available deviation (f1’) from the responses defined by the 1931 CIE standard observer model, ensuring precise color matching and minimal error. These filters are crucial in optical systems that aim to replicate or enhance human visual perception. High-quality tristimulus filters are ideal for machine vision, scientific systems, and surgical/medical applications to accurately match the human eye spectral response.
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  • 495.00 USD Each
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Optical Specifications Value
Transmission Transmission follows the CIE 1931 Standard Observer X curve
F1' Error ≤ 2% (380 to 775 nm).
General Filter Specifications Value
Angle of Incidence 0 ± 0 degrees
Cone Half-angle 3 ± 0 degrees
Optical Damage Rating Testing has proven to show no signs of degradation when exposed to at least 6.0 W of power from an unfiltered xenon arc lamp over a 25 mm diameter (corresponding to 1.2 W/cm2) for over 500 hours.
Physical Filter Specifications   Value
Transverse Dimensions (diameter) 25 mm
Transverse Tolerance + 0.0 / – 0.1 mm
Filter Thickness (mounted) 3.5 mm
Filter Thickness Tolerance (mounted) ± 0.1 mm
Clear Aperture ≥ 22 mm
Scratch-Dig 60-40
Filter Thickness (unmounted) 2.0 mm
Filter Thickness Tolerance (unmounted) ± 0.1 mm
Exciter/Emitter Orientation Arrow on ring indicates preferred direction of propagation of light.
TopicDescription
Cleaning Optical FiltersInstructions for cleaning hard coated optical filters
Filter ReliabilityCompares the performance and reliability of hard coated filters to traditional soft-coated filters and provides information about the testing standards for Semrock filters
Working with Optical Density Tables to describe the relationship between OD and transmission with tips for quickly calculating OD

Specifications

TopicDescription
Cleaning Optical FiltersInstructions for cleaning hard coated optical filters
Filter ReliabilityCompares the performance and reliability of hard coated filters to traditional soft-coated filters and provides information about the testing standards for Semrock filters
Working with Optical Density Tables to describe the relationship between OD and transmission with tips for quickly calculating OD