Seller
Kazakhstan, Almaty
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9 years on Allbiz
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Description
Rulers skiaskopichesky LSK - 1 (further - rulers) are intended for objective definition of a refraction of an eye.
Technical characteristics
| Name of parameter | Value |
| Limits of reproduction of a refraction, dptr | from minus 19 to plus 19 |
|
The absolute error of rulers should not exceed values in the ranges - for lenses of rulers from + 1,0 dptr to + 6,0 dptr: St. + 6,0 dptr to + 9,0 dptr - for lenses of cursors + 0,5 dptr + 10,0 dptr - for lenses of rulers together with lenses of cursors from + 1,5 dptr to + 5,5 dptr St. + 5,5 dptr to + 9,5 dptr St. + 10,0 dptr to + 19,0 dptr |
±0,12 dptr ± 0,18 dptr
±0,12 dptr ±0,40 dptr
±0,25 dptr ±0,30 dptr ±0,50 dptr |
| Overall dimensions no more, mm | 407? 37? 16 |
|
Weight no more, kg - rulers - in a complete set of delivery no more |
0,2 0,6 |
| Average service life before write - off not less, years | 8 |
| Sign of a limit condition of rulers is technical and economic inexpediency of restoration at emergence of defects on lenses of rulers (scratch, points, chips, etc. ) which total area makes more than 15% of total area of the polished surfaces of lenses | |
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Rulers skiaskopichesky LSK-1
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