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Holophane "4-way" dual prismatic refractor 4-way version of the dual prismatic refractor with directional focal areas. This optical system was used on Holophane street lights and also appeared in GE and Westinghouse catalogs, among others. Keywords: American_Streetlights

Holophane "4-way" dual prismatic refractor

4-way version of the dual prismatic refractor with directional focal areas. This optical system was used on Holophane street lights and also appeared in GE and Westinghouse catalogs, among others.

gol31314_006.JPG P8200032.JPG holophane12.jpg Westinghouse_OV25+.JPG Grandtrips 021.JPG
File information
Filename:holophane12.jpg
Album name:Nevada Willis / Restored Vintage Street Lights
Keywords:American_Streetlights
Company and Date Manufactured:Holophane +/- 1930s (Versions of this design are still being made.)
Filesize:37 KiB
Date added:Dec 10, 2014
Dimensions:600 x 450 pixels
Displayed:82 times
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=18755
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