Frequently Asked Questions

The Asteria Light and Flicker Meter is a high-speed measurement device suited for luminance, illuminance, and flicker measurements. It is suitable for light, flicker, and start-up behavior measurements as well as general high-speed light analysis.

The Asteria Light and Flicker Meter is available in multiple configurations. The lens-based system is capable of measuring luminance [cd/m²] and flicker, while its cosine corrector configuration allows illuminance [lux], luminous intensity [cd], and flicker measurements. Fiber versions are also available to connect to remote cosine correctors, lens systems, or integrating spheres.

The Asteria Light and Flicker Meter features absolute luminance or illuminance & luminous intensity measurement according to the human eye: CIE1931 luminosity function. It supports all flicker measurement standards for display, including Contrast, JEITA, VESA. It also has lighting flicker methods such as flicker percentage, index, and IEEE 1789 recommendation. It can measure high and low frequencies at the same time through a high sample rate [186.567 samples/second] and large memory size. It also has a trigger input and output for in-line applications. It is compatible with Windows, Linux, OSX, and embedded systems and has an SCPI command interface for easy integration in other applications. It is supported in all major programming languages Labview / Labwindows / Visual Studio [C++, C#, VB]/ etc. It is USBTMC standard compliant, and integrating- and sampling mode are available. It has 3 gain stages for every mode, an auto-range function, and user calibration function and pre-programmed calibration values.

The specifications of the Asteria Light and Flicker Meter include a CIE 1931 high-speed luminance measurement function, USB and RS232 connectivity, and a high-speed CPU and large internal memory for performing all complex calculations. It is available with a lens system or cosine corrector for luminance or illuminance & luminous intensity measurements respectively. For remote sensing and connecting to accessories, fiber-connected versions of the Asteria are available. All optical configurations are suitable for response time and flicker measurements supporting the following standards: Contrast min/max, Contrast RMS, JEITA, VESA, Flicker percentage (IES), Flicker index (IES), and IEEE 1789.

The dimensions of the Asteria Light and Flicker Meter depend on the configuration. The Asteria 10 mm has dimensions of 64 x 64 x 54 mm, while the Asteria cosine corrector has dimensions of 64 x 64 x 70 mm. The datasheet provides more detailed specifications for each configuration.

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