Glossary entry (derived from question below)
English term or phrase:
letter equivalent in angular subtense
Italian translation:
dimensioni in ampiezza angolare di una lettera equivalenti a
Added to glossary by
EleoE
Jul 13, 2017 14:02
6 yrs ago
English term
Italy
Freelance Professional Translator
Native in: Italian 
Works in: English to Italian, German to Italian
letter equivalent in angular subtense
English to Italian
Tech/Engineering
Medical: Instruments
UNI EN ISO 10938:2017
Ophtalmic optics - Chart displays for visual acuity measurement - Printed, projected and electronic
(Ottica oftalmica - Dispositivi per la presentazione di ottotipi per la misurazione dell'acuità visiva - Tabelle ottotiche stampate, proiettate ed elettroniche)
Snellen fraction
notation for specifying the angular subtense of an optotype, expressed as a fraction with the numerator being the distance at which visual acuity is tested, commonly in metres or feet, and the denominator being the distance at which the critical detail (limbs of the optotype) within the optotype subtends 1′ of arc
For projected charts and electronic acuity displays, it is common to calibrate the size of the optotype to subtend the desired minutes of arc at test distances other than 6 m. For example, for a short 4 m room, the letter equivalent in angular subtense to the 6/6 letter is 2/3 the size of a true 6/6 letter.
"Per esempio, per una stanza corta di 4 m, la lettera equivalente nell'ampiezza angolare alla lettera 6/6 è 2/3 le dimensioni di una lettera 6/6 vera." ????
Ophtalmic optics - Chart displays for visual acuity measurement - Printed, projected and electronic
(Ottica oftalmica - Dispositivi per la presentazione di ottotipi per la misurazione dell'acuità visiva - Tabelle ottotiche stampate, proiettate ed elettroniche)
Snellen fraction
notation for specifying the angular subtense of an optotype, expressed as a fraction with the numerator being the distance at which visual acuity is tested, commonly in metres or feet, and the denominator being the distance at which the critical detail (limbs of the optotype) within the optotype subtends 1′ of arc
For projected charts and electronic acuity displays, it is common to calibrate the size of the optotype to subtend the desired minutes of arc at test distances other than 6 m. For example, for a short 4 m room, the letter equivalent in angular subtense to the 6/6 letter is 2/3 the size of a true 6/6 letter.
"Per esempio, per una stanza corta di 4 m, la lettera equivalente nell'ampiezza angolare alla lettera 6/6 è 2/3 le dimensioni di una lettera 6/6 vera." ????
Proposed translations
(Italian)
| 3 +1 | dimensioni in ampiezza angolare di una lettera equivalenti a |
EleoE
|
Change log
Jul 18, 2017 17:16: EleoE Created KOG entry
Proposed translations
+1
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Selected
dimensioni in ampiezza angolare di una lettera equivalenti a
In una stanza della lunghezza di 4 m, le dimensioni in ampiezza angolare di una lettera equivalenti alla lettera 6/6 corrispondono ai 2/3 di quelle reali della lettera 6/6.
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