Mục sản phẩm
Hỗ Trợ Trực Tuyến
Xem lịch sử
1) Vertex Power
Range: +20diopterto-20diopter
Step: 0-(±)1D for 0.125D (±)1D-(±)20D for 0.25D
2) Prismatic Power
Range: 5 prism diopter
Step: 1 diopter
3) Cylindnical Axis
Range: 0 to 180 degrees
Step: 1 degree
4) Lenses Accommodated: Diameter 20mm to 85mm
5) Eyepiece Focusing: -5D to +5D
6) Bulb: 220V/15W 110V/15W