10 January 1989 Dynamic filters for protection devices
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Proceedings Volume 10305, Dosimetry of Laser Radiation in Medicine and Biology; 103050G (1989) https://doi.org/10.1117/12.2283597
Event: Institutes for Advanced Optical Technologies, 1988, Berlin, Germany
Electro-optic filters with a transmittance variable in time are used for eye protection in electric welding applications. These filters change their luminous transmittance automatically from an initial maximum value to a minimum value when the welding arc is ignited. In the light state, the work-piece and thus the location where the electrode is to be set can be observed. After the ignition of the arc, within a certain switching time, the filter changes to its dark state in order to make the welding process visible.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
E. Buhr, E. Buhr, } "Dynamic filters for protection devices", Proc. SPIE 10305, Dosimetry of Laser Radiation in Medicine and Biology, 103050G (10 January 1989); doi: 10.1117/12.2283597; https://doi.org/10.1117/12.2283597

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