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PORTABLE LENSMETER LM-1
    发布时间: 2019-11-01 16:22    
PORTABLE LENSMETER LM-1

NJC-1 Manual Lensmeter Specifications:

Vertex power range +15D-20D
step 0-(+-)10D for 0.125D（+-）
10D-(+-)15Dfor0.25D
Prismatic power range 4 prism diopter
step 1diopter
Cylindrical axis range 0 to 180 degrees
step 1 degree
Lenses accommodated Diameter 20mm to 80mm
Eyepiece focusing  -5D to +5D
DC and AC  (DC)3V(AC)6V/3W