Imaging light and colour measuring technique

The imaging analysis of light sources and illuminated scenes is getting more and more important. The complex evaluation of those scenes requires to know the luminance distribution within the whole field of view or at least in many selected parts of it. Solving the necessary measuring tasks by means of measuring devices working point by point either takes an enormous amount of time or is possible only within a coarse raster grid or is not possible at all. Thus, the development of spatially resolved radiation receivers, in particular CCD matrix cameras, has enabled the user to solve measuring problems such as measurements for glare evaluation according to the UGR method, the analysis of visibility conditions in the road traffic at night, immission evaluations of glare sources, the determination of contrasts in illumination situations (workplace) or directly on light sources (e.g. lamps/luminaires, displays, night design, indicators).

• measuring of luminous and illuminated surfaces
• determination of luminous and background-lit symbols
• data for simulations in the development of lamps, luminaires and headlamps
• photographing of complex illumination and light distribution situations
• cataloging and presentation

Advantages

• complex evaluation of luminous and illuminated scenes by means of the photograph of an image-resolved luminance distribution
• simultaneous recording of a big number of connected measuring data easy data analysis (at a glance)

Result data

• luminance distributions in measuring images L(x,y)
• derived lighting-engineering parameters such as illuminance distribution E(x,y) and luminous intensity distribution I(x,y)
• statistical data for being used in calculation programs (z.B. EXCEL®, MatLAB®, LabVIEW®)

Complete overview of LMK camera photometer (3MB)

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