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Glossary entry

English term or phrase:

aspherical lens

Romanian translation:

lentilă asferică

Nov 21, 2008 09:54
15 yrs ago
English term

aspherical lens

GBK English to Romanian Art/Literary Photography/Imaging (& Graphic Arts)
Definition from MIR Web Development Team:
A lens whose curved surface does not conform to the shape of a sphere; lenses are usually ground or molded with spherical surfaces; because a spherical surface lens has difficulty in correcting distortion in ultra-wideangle lenses or coma in large-aperture lenses brought about by spherical aberration, an aspherical lens is used.
Example sentences:
It incorporates hybrid aspherical lens in the front lens group to minimize distortion and astigmatism, and molded glass aspherical lens in the rear lens group to minimize spherical aberration. (Sigma Corporation of America)
Now found in almost every EF lens, aspherical lens elements are particularly useful for large-aperture lenses, wide-angle lenses and high quality compact zoom lenses. (canon.co.uk)
It incorporates a floating focus system and uses two aspherical lens elements for minimizing distortion, spherical aberration and astigmatism. (SIGMA CORPORATION)
Proposed translations (Romanian)
5 +2 lentilă asferică
Change log

Nov 21, 2008 09:54: changed "Stage" from "Preparation" to "Submission"

Nov 24, 2008 09:54: changed "Stage" from "Submission" to "Selection"

Jan 22, 2009 05:54: changed "Stage" from "Selection" to "Completion"

Discussion

RODICA CIOBANU Nov 22, 2008:
aspherical lens lentile cilindrice

Proposed translations

+2
15 hrs
Selected

lentilă asferică

In certain contexts, the translation can be "obiectiv asferic". Here's an example:

An aspheric lens or asphere is a lens whose surfaces have a profile that is neither a portion of a sphere nor of a circular cylinder. In photography, a lens assembly that includes an aspheric element is often called an ***aspherical lens***.
Definition from Dicţionar Arvin Press:
Lentilă a cărei suprafaţă frontală curbă nu corespunde formei unei sfere, aşa cum este cazul obiectivelor obişnuite. Deoarece suprafeţele sferice pot fi greu corectate pentru evitarea aberaţiei de sfericitate, în cazul obiectivelor ultra-super-angulare cu deschidere mare, se folosesc lentile asferice care permit corectarea acestui tip de aberaţie.
Example sentences:
Constructie obiectiv, 7 elemente in 51 grupuri (inclusiv un element din sticla ED si o lentila asferica). Distanta minima de focalizare, 0.28 m ... (Foto Video)
Note from asker:
Köszönöm szépen, Katalin! :)
Peer comment(s):
agree Adela Porumbel
2 days 9 hrs
agree cristina48 : sau lentile nonsferice
61 days
Something went wrong...
4 KudoZ points awarded for this answer.
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