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File:Optical-dichrotic-filter-0.5inch.jpg

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English: Photograph of an optical interference filter. A stack of thin films coated onto the round 1/2-inch substrate acts as a high-transmitting bandpass filter at 780nm with a pass-band of few nm. Light at other wavelengths in the stop-band a few 100nm around are fully reflected. Over the whole optical spectrum the filter looks semi-transparent, reflecting bright background light in this image.
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Author Geek3

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current22:51, 9 January 2017Thumbnail for version as of 22:51, 9 January 20172,000 × 2,000 (1.33 MB)Geek3 (talk | contribs)== {{int:filedesc}} == {{Information |Description ={{en|1=Photograph of an optical {{W|interference filter}}. A stack of thin films coated onto the round 1/2-inch substrate acts as a high-transmitting bandpass filter at 780nm with a pass-band of few...

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