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- Q866442 subject Q7331890.
- Q866442 subject Q7470290.
- Q866442 subject Q8826760.
- Q866442 subject Q8826767.
- Q866442 subject Q9127969.
- Q866442 abstract "A pentaprism is a five-sided reflecting prism used to deviate a beam of light by a constant 90°, even if the entry beam is not at 90° to the prism.The beam reflects inside the prism twice, allowing the transmission of an image through a right angle without inverting it (that is, without changing the image's handedness) as an ordinary right-angle prism or mirror would.The reflections inside the prism are not caused by total internal reflection, since the beams are incident at an angle less than the critical angle (the minimum angle for total internal reflection). Instead, the two faces are coated to provide mirror surfaces. The two opposite transmitting faces are often coated with an antireflection coating to reduce spurious reflections. The fifth face of the prism is not used optically but truncates what would otherwise be an awkward angle joining the two mirrored faces.".
- Q866442 thumbnail Pentaprism.svg?width=300.
- Q866442 wikiPageWikiLink Q113582.
- Q866442 wikiPageWikiLink Q1146074.
- Q866442 wikiPageWikiLink Q1309339.
- Q866442 wikiPageWikiLink Q1485994.
- Q866442 wikiPageWikiLink Q165896.
- Q866442 wikiPageWikiLink Q191313.
- Q866442 wikiPageWikiLink Q1931209.
- Q866442 wikiPageWikiLink Q196342.
- Q866442 wikiPageWikiLink Q196353.
- Q866442 wikiPageWikiLink Q209871.
- Q866442 wikiPageWikiLink Q210.
- Q866442 wikiPageWikiLink Q234943.
- Q866442 wikiPageWikiLink Q282186.
- Q866442 wikiPageWikiLink Q2858617.
- Q866442 wikiPageWikiLink Q35197.
- Q866442 wikiPageWikiLink Q385378.
- Q866442 wikiPageWikiLink Q3899242.
- Q866442 wikiPageWikiLink Q5101838.
- Q866442 wikiPageWikiLink Q583040.
- Q866442 wikiPageWikiLink Q694099.
- Q866442 wikiPageWikiLink Q7331890.
- Q866442 wikiPageWikiLink Q7470290.
- Q866442 wikiPageWikiLink Q816425.
- Q866442 wikiPageWikiLink Q8826760.
- Q866442 wikiPageWikiLink Q8826767.
- Q866442 wikiPageWikiLink Q9127969.
- Q866442 wikiPageWikiLink Q9128.
- Q866442 wikiPageWikiLink Q986547.
- Q866442 comment "A pentaprism is a five-sided reflecting prism used to deviate a beam of light by a constant 90°, even if the entry beam is not at 90° to the prism.The beam reflects inside the prism twice, allowing the transmission of an image through a right angle without inverting it (that is, without changing the image's handedness) as an ordinary right-angle prism or mirror would.The reflections inside the prism are not caused by total internal reflection, since the beams are incident at an angle less than the critical angle (the minimum angle for total internal reflection). ".
- Q866442 label "Pentaprism".
- Q866442 depiction Pentaprism.svg.
