Description

NJC-4 Manual lensmeter Features: Ø Wide observation vision field Ø Classic shape, Favorable price Ø Both power: DC or AC Ø Compensation Prism Device OPTION Parameters: Range of measurement -20D~+20D Minimum scale value -5D~+5D 0.12D steps -5D~-20D & +5D~+20D 0.25D Astigmatism axis angle of cylindrical lens 0~180° Minimum scale value 1° Prism degree 0~5Δ Minimum scale value 1Δ with prism compensation device 0~20Δ Minimum scale value 1Δ Prism basal angle 0~180°, Minimum scale value 1° Range of ocular visibility adjustment 20mm ~ 85mm Power AC 220V/110V /DC 3V

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