Product Description
Features
1) Internal reading system;
2) Prism compensation unit included;
3) AC / DC power supply, more convenient.
Specifications
Ranges of Measurement | 0 to ±25D |
Minimum | Outer Reading:0.125D Inner Reading:0.125D graduation up 0 to ±5D and 0.25D graduations over±5D to ±25D |
Cylinder Axis Range | 0-180°step 1° |
Primatic Power Range | 0-5prism diopters,graduations with prism compensation device 0~20prism diopters, 1graduations |
Prism Base Angle | 0~180° |
Eyepiece Adjustment | ±5D |
Dimension of Objective Lens | Φ16~Φ86mm |
Overall size | 275×120×430mm |
Weight | 4kg |
Lighting Bulb | ~220V/-3V 3W or ~110V/-3V 3W |