Ideal Radiometric

Ideal Radiometric

Radiometry is a broad field encompassing all techniques for measuring electromagnetic radiation, including the measure of visible light. These techniques measure the distribution of the radiation’s power in space. This field includes photometry, which more specifically measures attributes of electromagnetic energy that are visible to the human eye. Instruments in this category address both the broad and more specific attributes of light these fields cover.

Ideal Luminance Meters

Luminance is a photometric measurement of the luminous intensity of light travelling in a given direction. In other words, it describes the amount of light that passes through or is emitted from a particular area at a particular solid angle. This type of measurement is especially useful because it quantifies the properties of light that the human eye actually perceives. Measuring these quantities of light is essential, for example, for TV studios, sports arenas, emergency situation lighting, traffic lighting, and automobile lighting.

• Accuracy: Ideal Luminance meters feature basic accuracy of ±3% with incandescent light and ±6% with all other visible light sources. As you measure at wider angles accuracy will decrease rapidly, ultimately to ±25% at an 80 degree angle.
• Sensor: Ideal Luminance meters feature a silicon photodiode sensor with a filter.
• Luminance Range: This is simply the range of values a luminance meter can measure. This range differs depending on measuring angle. Top-end Ideal Luminance Meters can measure up to 200,000 lux.