SPECIFICATIONS|
VT-10 |
|
SPECIFICATIONS |
| Type |
Subjective refraction testing equipment |
| Myopia | 0 to -19.00D in 0.25D step (0.12D step) |
| Hyperopia |
0 to +16.75D in 0.25D step (0.12D step) |
| Astigmatism |
0 to -6.00D (-8.00D) in 0.25D step (0.12D step) |
| Cross-Cylinder |
±0.25D (±0.37D and ±0.50D as option) |
| Phoria and vergency |
20 prism to 0 to 20 prism by 1 prism step |
| Inner 40 prism | |
| Outer 40 prism (50 prism) | |
| Upward and Downward 40 prism (46 prism) | |
| Near vision test |
Main optical axes of both lenses converges by means of tilt mechanism at 40cm in front of the eyes at 64mm P.D. If P.D. for far vision is less than 54mm, converging operation stops. |
| Binocular balance test |
Rotary prism and polarizing lens methods are available. |
| P.D. |
48 to 75mm by 1mm step |
| Level adjustment |
More than 4.5º for right and left banks |
| Dimensions |
335 (at 64mm P.D. setting) x 97 x 294mm |
| Weight |
4.5 kg. |