• LEA NUMBERS® – Low Contrast ring binder, mixed 52075A, układ mieszany

The Symbol : 270500

LEA NUMBERS® – Low Contrast ring binder, mixed

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The quantity in the package 1 opak
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The Weight Of The 0.25 kg

Zamówienie telefoniczne: 22 651 82 85

Now it's easy to measure, record and detect changes in the transfer of visual information when the change only affects visual acuity at low contrast levels. Chart presents numbers at the following contrast levels: black, 25%, 10%, 5%, 2.5%, and 1.25%. Pages are offset for easy flipping. Each chart includes recording forms and instructions. 6 pages, 3.25" x 9" (8.25 cm x 22.9 cm).

Przykładowe przeprowadzenie badania :   https://www.good-lite.com/instructions/270500.cfm 

PDF DocumentInstrukcja użytkowania 250800

 PDF DocumentKarta wyników

 PDF DocumentPrzelicznik skali Decimal/Snellen

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