สถานที่กำเนิด
Beijing, China
สนับสนุนที่กำหนดเอง
OEM, ODM, OBM
Product name
20% discount hot sale manual phoropter head unit vision tester
Sphere (SPH)
-19.00D ~ +16.75D or -29.00D ~ +26.75D
Type
Ophthalmic Optical Equipments
Axis (AX)
0° ~ 180° (5° increments)
Cross-Cynlinder
±0.25D, reversed-type (synchronized AX)
Built-In Optical Filters
Red, Green, Polarized, Maddox Vertical, Maddox Horizontal
Convergence Adjustments
57~ 80 mm