LumiTop 4000 / 5300 Imaging photometer and colorimeter for display production

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LumiTop 4000 / 5300 – Innovative design combines imaging and spectral measurement technology

The LumiTop 4000 and LumiTop 5300 imaging colorimeters from Instrument Systems are used together with a CAS spectroradiometer for measuring the luminance and color uniformity of displays in the production line. They also include a photodiode, thus combining the advantages of three different types of measuring instrument:

  • Unrivalled accuracy in spectral spot measurement
  • Analysis options of imaging colorimetry
  • Temporal resolution of a photodiode.

The patented optical design permits simultaneous measurement of all three sensors in one shot. The accurate spectral measurement is used as a live reference and transferred to the complete measurement field of the camera. This makes for extremely short measurement times and all relevant optical tests are conducted in a single test station.

The LumiTop is available in two basic versions:

  • LumiTop 4000 with 12 MP RGB sensor
  • LumiTop 5300 with 24 MP RGB sensor

The LumiTop 4000 and LumiTop 5300 as advancements of the LumiTop 2700 can detect and analyze even smaller defects and inhomogeneities, and in combination with magnifying leses they permit single pixel analyses. Thanks to a HW trigger they are suitable for applications with timed measurement processes (e.g. optical tests of µLED wafers). The high-luminance mode of LumiTop 4000 extends the dynamic range, particularly with modulated displays and light sources (such as OLED displays).The specific sensor of LumiTop 5300 allows for high-resolution images in AR/VR and microdisplays.

The LumiTop AR/VR models are optimally configured for near-eye display testing. Their special AR/VR lenses  optically mimic the human eye and measure color and luminance as the user would see it. A wide camera field of view, various pupil sizes and a variable focusing distance facilitate the implementation of various test applications. The periscope as well as the straight design of the lenses guarantee easy access to the near-eye display in the already mounted headset as well as on modul level. A hardware trigger can synchronize the measurement with two LumiTops, enabling simultaneous two-eye measurements.

LumiTop 4000 / 5300 – Product details

  • Worldwide established measuring instrument for display quality control in production facilities (in combination with the CAS series of spectrometers)
  • Model variants with 12 or 24 megapixels
  • High measurement speed with high measurement accuracy
  • Extensive LumiSuite software (GUI and SDK)
  • Complete evaluation of luminance and color uniformity, Mura, pixel defects, contrast, gamma curves, white point, flicker and luminance modulations and spectral analysis in the center spot
  • Wide range of objective lenses for flat panel display, AR/VR, Microdisplay and µLED Wafer Testing

LumiTop – The perfect solution for optical production tests

LumiTop systems were specially developed for display measurement in production facilities. From displays for smart watches to TVs, back light units or µLED wafers, the measurement solutions featuring our LumiTop cameras deliver fast and precise results for quality control. 

LumiTop Family – Technical data

Model variants

LumiTop 4000

LumiTop 5300

Resolution (RGB)

12 MP

24 MP

Choice of lens

29 mm standard / 100 mm (macro) / AR/VR lens

AR/VR lens standard / 29 mm / 100 mm / Microscope optics




High luminance mode (for modulated light sources)



The detailed measurement conditions under which the specified values have been determined can be looked up in the data sheets and brochures or requested from Instrument Systems.

Experience our LumiTop portfolio interactively in our video!