NJC-1(GJD-3) Manual Lensmeter

Technical Data
Vertex power
range +15D-20D
step 0-(+-)10D for 0.125D（+-）10D-(+-)15D for 0.25D

Prismatic power
range 4 prism diopter
step 1 diopter

Cylindrical axis
range 0 to 180 degrees
step 1 degree
Lenses accommodated Diameter 20 mm to 80 mm
Eyepiece focusing -5D to +5D
DC and AC (DC)3V, (AC)6V/3W