1. Range of measurement: 0D to ±20D
Minimum:
0.125D graduation up 0D to ±5D
0.25D graduation over ±5D to ±25D
2. Cylinder axis range: 0~180° step 1°
3. Prismatic power range:
Pattern A:0-5 prism diopters,1△ graduations
Pattern B:(with prism compensation device) 0-20△ prism diopters,1△ graduations
4. Prism base angle:
0 to 180 degree, minimum scale value 1 degree
180 degree to 360 degree Minimum scale value 5 degree
5. Eyepiece adjustment: ±5D
6. Dimension of objective lens: Φ16 ~ Φ80MM
7. Overall size:27.5(L)*13(W)*45.5(H)(CM)
8. Weight:
Pattern A: 5.6KGS
Pattern B (with prism compensation device):5.7KGS
9. Lighting bulb: Input AC 100V~240V, Output: DC 6V~ 2A 12W
10. DC Power supply is available.
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