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HPA-400 High Performance Array Spectroradiometer
HPA-400 is an industry-leading spectroradiometer, designed with scientific-grade gratings and array detectors. The measurement speed can be within milliseconds, with high accuracy. It can realize the measurement of radiometric, photometric and colorimetric quantities of both light sources and materials.The HPA-400 is designed to work independently or with a pc.

Measureable Quantities

    Luminous and Radiant Flux (with integrating sphere)
    Luminous and Radiant Intensity (with goniometer)
    Spectral Power Distribution
    Spectral Irradiance
    Illuminance and Irradiance (with irradiace sampling device)
    Luminance and Radiance (with Radiance sampling device)
    Luminance Efficacy
    Chromaticity Coordinates (x, y), (u, v), (u’, v’)
    Color Rendering Index (CRI, Ra, R1-R15)
    Color Purity
    Standard Deviation of Color Matching (SDCM)
    Peak and Dominant Wavelengths
    Half Peak Bandwidth



    High Sensitivity
    Fast Measurement Speed: Can measure the entire spectrum of a flashed light source within 1μs
    Low Stray Light
    Flexibility: The optical fiber interface is compatible with many other measurement accessories
    Trigger Function: External Trigger function allows for both pulse and stable measurements

    Stand-alone Model:  The HPA-400 features a touch screen and USB interface such that users can operate and export data without using or connecting to a PC

Basic Principle 






Software Design