Category Archives: light

A bright screen reduces the flicker effect

building biologist measures light quality

Building biologist measures lightquality of a computer screen

Building biologist Jens Rudloff (Germany) regularly measures the light quality of his computer screen with a professional measuring device. The “Eco-Mode” of the LED monitor from Fujitsu has a brightness level of 55. For comparison, Rudloff sets the brightness level to 95 and measures whether there are any differences in terms of flicker or blue light for the user. In addition to the light from the ceiling light, the building biologist adds a bright halogen desk lamp during the experiment. As usual in building biology, he uses natural sunlight as a guideline.
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Energy-saving lighting and health

Example of a LED  light spectrum

Example of a LED light spectrum

A low power consumption is not the only criterion

Everyone wants to make an active contribution to climate protection and save energy. To achieve this goal, we can use energy saving devices and energy-saving bulbs in the household. But a low power consumption is not the only criterion when we select an appropriate lighting. Scientific studies have confirmed the importance of natural light to our health now detected. Daylight is optimal for our well-being. It has a harmonious color spectrum (red, green, blue) and a low UV component. The conventional light bulb came the natural color spectrum very close. Only the red component was somewhat increased. Even the light from halogen lamps largely corresponds to the natural spectrum. Another advantage of conventional light bulbs and halogen bulbs is a uniform flicker of 100 Hertz and a small proportion of flickering light.
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