首页>
外国专利>
UV light-emitting diodes as a radiation source in a device for the artificial weathering of samples
UV light-emitting diodes as a radiation source in a device for the artificial weathering of samples
展开▼
机译:紫外线发光二极管作为人工风化样品的装置中的辐射源
展开▼
页面导航
摘要
著录项
相似文献
摘要
The usual xenon radiation source in conventional weathering testers is replaced by UV light-emitting diodes (LEDs) (6). These can be used to provide a good approximation of the UV component of the solar spectrum, in particular when different types of UV light-emitting diodes (6) with different emission characteristics are employed. Optionally, further light-emitting diodes in the visible spectral range may also be used in order to cover other parts of the solar spectrum. The light-emitting diodes (6) may be mounted on a flexible printed circuit board (5), which may in turn be fitted on a tubular holding body (4). The flexible printed circuit board carrying the light-emitting diodes may also be placed on other substrates (7) which are pliable in a geometrically stable way, so that that they can be arranged at a uniform distance from material samples with a particular surface topology, in order to obtain uniform exposure.
展开▼