Porro-prism erecting system

0.01 sec.

Porro-prism erecting system [′pȯ·rō ‚priz·əm i′rek·tiŋ ‚sis·təm]

(optics)

A compound erecting system, designed by M. Porro, in which there are four reflections to completely erect the image; two Porro prisms are employed; the line of sight is bent through 360°, is displaced, but is not deviated; used in prism binoculars and some telescope systems.

Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.

?Page tools

Printer friendly
Cite / link

Feedback

Mentioned in	?		Encyclopedia browser	?		Full browser	?
No references found			Porphyria Porphyrin porphyrinuria Porphyrite porphyritic Porphyritic Texture porphyroblast porphyroblastic Porphyroblastic Texture porphyroclastic structure porphyrocrystallic porphyrogranulitic Porphyroid porphyroskelic porphyrotope porphyrotopic Porphyry porphyry copper deposit porpoise porpoise oil Porpora Porpora, Niccolò Antonio Porrentruy Porres, Saint Martin de Porro prism Porro-prism erecting system Porsangen Fjord Porsena Porsena, Lars Porsgrunn Porshnev, Boris Porshnev, Boris Fedorovich Porson, Richard Port port 80 port address Port Address Translation Port Adelaide port aggregation Port Alberni Port Angeles Port Antonio Port Arthur Port Arthur, Defense of Port Augusta Port Authority of New York and New Jersey Port Blair PORT CEM Port Charges Port Charlotte Port Chester			Porpora, Niccolò Antonio Porporino PORPP Porpus PORR Porra Porraceous porrect Porrection Porrentruy Porrentruy (Jura) Porrentruy JU Porrentruy, Switzerland Porres, Saint Martin de Porret porridge porridge oats porridgy porrigo porringer porringers Porro prism porro prisms porro-prism binoculars Porro-prism erecting system Porrocaecum Porrocaecum angusticolle Porrocaecum aridae Porrocaecum crassum Porrocaecum decipiens Porrocaecum depressum Pors Porsangen Fjord Porsche Active Suspension Management Porsche AG Porsche and BMW Owners Club Porsche Cars of North America, Inc. Porsche Centre Gold Coast Porsche Ceramic Composite Brakes Porsche Ceramic Composite Brakes Porsche Ceramic Composite Brakes Porsche Ceramic Composite Clutch Porsche Club Great Britain Porsche Club Motorsport Porsche Club of America Porsche Club of Catalunya Porsche Club of Estonia Porsche Club of Geneva Porsche Club of Netherlands Porsche Club of South Australia

Encyclopedia

Free Tools:	For surfers: Free toolbar & extensions \| Word of the Day \| Help For webmasters: Free content \| Linking \| Lookup box \| Double-click lookup

Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.