Latest Test and Measurement News

Goniometric Characterization of curved Displays

01 June 2023 - Instrument Systems launched its latest DMS series of goniometers. The DMS 904 was designed for the optical characterization of large and curved displays. Based on the proven DMS movement methodology, it has seven motorized axes for automatic measurement. The additional X-axis permits decentralized, angle-dependent measurements for displays up to a width of 1.8 m. The enlarged temperature control chamber enables movements during the measurement process in X- and Z-direction and has an interior space of 160 x 60 x 20 cm.

The established DMS series of display measurement systems offers many options for the view direction-dependent optical evaluation of displays. They incorporate a motorized positioning unit and a temperature control chamber for testing at -40 to +105 °C. Their equipment enables, for example, measurement of the spectral reflectance under hemispherical direct or diffused illumination, or the determination of contrasts under diverse ambient lighting conditions. The new DMS 904 goniometer was specially developed for larger and curved displays. It has seven motorized axes for automatic measurement, a motorized microscope aperture wheel and an integral alignment camera. The additional X-axis permits decentralized, angle-dependent measurement of displays up to a width of 1.8 m. The enlarged temperature control chamber permits movements in X- and Z-direction and has an interior space of 160 x 60 x 20 cm.

Display measurements at high and low luminance

In addition Instrument Systems extended its product range for the color and homogeneity testing of AR/VR headsets, to which the LumiTop series of high-resolution 2D imaging colorimeters belong. The two new models LumiTop X20 and X30 were specially designed for display tests under low- and high-luminance conditions. Compared to the previous proven models in display production, they feature a higher camera resolution (20 MP or 30 MP), flexible field of view and particularly wide dynamic range for high and low luminance measurements. The new flicker electronics are designed for frequencies from 1 Hz to 1 kHz. Both models are optionally available with a motorized focus. Suitable applications are homogeneity measurements and error detection under special luminance conditions.

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