100 mm

IntroductionVisual signaling devices by PfannenbergOur comprehensive range includes:• xenon fl ashing lights• halogen blinking and continuous lights• blinking and continuous lights with fi lament lamps• LED multifunction lights• rotating mirror lights• panel mount blinking and continuous indicators• combination lights• traffic light lights• signal towers• visual signaling devices for the Ex areaA large proportion of our signaling devices are provided with thefollowing features, which make their use in special applicationspossible, such as in safety-relevant applications:• synchronisation of several lights• redundant structure• integrated function monitoring• limitation of initial currentBasic principles of opticsLight moves as electromagnetic wave, which aredistinguished from one another by their wavelength.The wavelengths of that part of the electromagneticspectrum, which are visible to the human eye liebetween 380 nm and 780 nm and are called thevisible spectrum.The visible spectrum itself is in turn made up of differentelectromagnetic waves that generate the perceptionof different colours in our eyes. The limits of the visiblespectrum are represented by infrared and ultra-violetlight.The spectrum visible to the human eye (light)Ultra-violetInfrared400 nm 450 nm 500 nm 550 nm 600 nm 650 nm 700 nmCosmic Gamma- hard, medium, soft UV- Infrared Terrahertz Radar UHF UKW Medium wave high, medium, lowradiation radiation X-ray radiation C/B/A radiation radiation Microwave oven VHF Short wave Long wave frequencyultra-violet Microwaves Radio AC currentsi fm 1 pm 1 Å 1 nm 1 μm 1 mm 1 cm 1 m 1 km 1 Mm10 -15 10 -14 10 -13 10 -12 10 -11 10 -10 10 -9 10 -8 10 -7 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1 10 0 10 1 10 2 10 3 10 4 10 5 10 6 10 710 23 10 22 10 21 10 20 10 19 10 18 10 17 10 16 10 15 10 14 10 13 10 12 10 11 10 10 10 9 10 8 10 7 10 6 10 5 10 4 10 3 10 21 Zetta-Hz 1 Exa-Hz 1 Peta-Hz 1 Tera-Hz 1 Giga-Hz 1 Mega-Hz 1 Kilo-Hz20