A Perger prism or Perger–Porro prism system is a prism, that is used to invert (rotate by 180°) an image. The special feature of this prism is that, like a traditional double Porro prism system, it manages this with only four beam deflections and has neither a roof edge with the accompanying phase correction problems, a mirrored surface or an air gap. However, in contrast to the traditional double Porro prism, it leads to a significantly reduced eyepiece/objective axis offset. The reduced beam offset allows for slimmer, more straight binocular housings usually found in roof prism binoculars. Complicating production requirements make high-quality roof prism binoculars relatively costly to produce compared to in optical quality equivalent Porro prism or "Perger–Porro prism system" binoculars
| Attributes | Values |
|---|
| rdfs:label
| - Perger-Prisma (de)
- Perger prism (en)
|
| rdfs:comment
| - Ein Perger-Prisma ist ein Umkehrprisma, das heißt ein spezielles Reflexionsprisma, das verwendet wird, um ein Bild zu invertieren (Drehung um 180°). Die Besonderheit dieses Prismas liegt darin, dass es, wie ein Porroprisma, mit nur vier Strahlumlenkungen auskommt, dabei weder eine Dachkante, verspiegelte Fläche oder Luftspalt aufweist. Im Gegensatz zum Porroprisma führt es jedoch zu einem deutlich reduzierten Achsversatz, der den Bau vergleichsweise kompakter Ferngläser erlaubt. Das Umkehrsystem wurde 2012 von Andreas Perger patentiert und zunächst im Fernglas Geovid HD (dritte Generation) des Herstellers Leica eingesetzt. (de)
- A Perger prism or Perger–Porro prism system is a prism, that is used to invert (rotate by 180°) an image. The special feature of this prism is that, like a traditional double Porro prism system, it manages this with only four beam deflections and has neither a roof edge with the accompanying phase correction problems, a mirrored surface or an air gap. However, in contrast to the traditional double Porro prism, it leads to a significantly reduced eyepiece/objective axis offset. The reduced beam offset allows for slimmer, more straight binocular housings usually found in roof prism binoculars. Complicating production requirements make high-quality roof prism binoculars relatively costly to produce compared to in optical quality equivalent Porro prism or "Perger–Porro prism system" binoculars (en)
|
| foaf:depiction
| |
| dcterms:subject
| |
| Wikipage page ID
| |
| Wikipage revision ID
| |
| Link from a Wikipage to another Wikipage
| |
| sameAs
| |
| dbp:wikiPageUsesTemplate
| |
| thumbnail
| |
| has abstract
| - Ein Perger-Prisma ist ein Umkehrprisma, das heißt ein spezielles Reflexionsprisma, das verwendet wird, um ein Bild zu invertieren (Drehung um 180°). Die Besonderheit dieses Prismas liegt darin, dass es, wie ein Porroprisma, mit nur vier Strahlumlenkungen auskommt, dabei weder eine Dachkante, verspiegelte Fläche oder Luftspalt aufweist. Im Gegensatz zum Porroprisma führt es jedoch zu einem deutlich reduzierten Achsversatz, der den Bau vergleichsweise kompakter Ferngläser erlaubt. Das Umkehrsystem wurde 2012 von Andreas Perger patentiert und zunächst im Fernglas Geovid HD (dritte Generation) des Herstellers Leica eingesetzt. (de)
- A Perger prism or Perger–Porro prism system is a prism, that is used to invert (rotate by 180°) an image. The special feature of this prism is that, like a traditional double Porro prism system, it manages this with only four beam deflections and has neither a roof edge with the accompanying phase correction problems, a mirrored surface or an air gap. However, in contrast to the traditional double Porro prism, it leads to a significantly reduced eyepiece/objective axis offset. The reduced beam offset allows for slimmer, more straight binocular housings usually found in roof prism binoculars. Complicating production requirements make high-quality roof prism binoculars relatively costly to produce compared to in optical quality equivalent Porro prism or "Perger–Porro prism system" binoculars. Dr. Andreas Perger patented the inversion system in 2011, and it was initially used in the Geovid HD laser rangefinding binoculars (2013 third generation) from the manufacturer Leica. This manufacturer uses the "Perger–Porro prism system" designation for this binoculars line, which features curved (banana shaped) binocular barrels. (en)
|
| prov:wasDerivedFrom
| |
| page length (characters) of wiki page
| |
| foaf:isPrimaryTopicOf
| |
| is Link from a Wikipage to another Wikipage
of | |
| is foaf:primaryTopic
of | |
![[cxml]](/fct/images/cxml_doc.png)
![[csv]](/fct/images/csv_doc.png)
![[text]](/fct/images/ntriples_doc.png)
![[turtle]](/fct/images/n3turtle_doc.png)
![[ld+json]](/fct/images/jsonld_doc.png)
![[rdf+json]](/fct/images/json_doc.png)
![[rdf+xml]](/fct/images/xml_doc.png)
![[atom+xml]](/fct/images/atom_doc.png)
![[html]](/fct/images/html_doc.png)
![[RDF Data]](/fct/images/sw-rdf-blue.png)