Portable lens meter NJC-4
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Description
- Eyepiece adjustment range, focal length: ± 5 D
- Sphere Measuring Range: -20D ~ +20 D (step: 0.12D)
- Prism measurement range: 0 ~ 5 prismatic D (step: 1 D)
- Prism angle: 1 ~ 180 ° (step: 1 °)
- Diameter of the measured lens: 20 ~ 80 mm
- Lighting lamp: 6 V, 3 W
- Size: 200 * 290 * 450 mm
- Weight: 5.5 kg
- Power: 220 V, 50 Hz / AA batteries
Description
Features:
- It can measure the sphere, cylinder, cylinder axis, prism and initial direction
- AC/DC power supply (2x5 AA batteries, battery not included)
- Clear, high precision, intuitive scale
- Easy to operate and use
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