File:Prism salesroom.gif
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Summary
| Description |
English: Pavement prisms used to light a room inside a hollow sidewalk. The points dangling from the ceiling, and the wall on the right, are glass prisms which combine to refract the light, so that it passes right under the building and daylights the basement.
Original caption: LUXFER PRISMS IN USE. Illumination in a basement salesroom by means of prisms in the sidewalk. |
| Date | |
| Source | https://glassian.org/Prism/Luxfer/Paper/WSI/page279.html |
| Author | "Luxfer Prisms as Light Transmitters" , anonymous 1902 article |
Licensing
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1931.
 Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:18, 21 October 2017 | | 263 × 371 (30 KB) | HLHJ | User created page with UploadWizard |
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