
Lensometers for Sale
Features
The NJC-4 Lensmeter is used to measure the diopters of spherical lens and cylinder lens, the axis of cylinder lens, the strength
and the baseline direction of shuttle lens, it can also stamp the optical center of lens, the axis of cylinder lens and the base
direction of shuttle lens.
This instrument (Both Ac and Dc are permitted Two cells When Dc) has clear readings and graduations as well as high objective
precision and reliabilities except that it can be operated easily and conveniently, AU the lenses and the made glasses can be
measured by it, therefore, it is a required and ideal measuring instrument for glasses manufactures, glasses stores and
ophthalmological hospitals.
1. ±20D Measurement
2. AC and DC
DETAILS
Specifications
Vertex power |
range |
+20diopter-20diopter |
step |
0.12D |
|
Prismatic power |
range |
5 prism diopters |
step |
1diopter |
|
Cylindrical axis |
range |
0 to 180 degrees |
step |
1 degree |
|
Lenses accommodated |
Diameter 20mm to 85mm |
|
Eyepiece focusing |
-5D to +5D |
|
Bulb |
220V-110V/6V/3W |
If add prism compensator, add 25 degree