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Specification :
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Angular field of view |
20°x15° |
Manual
compensation
of ametropia |
±20D |
Adaptive
compensation
of ametropia |
±3D |
| Image sensor dimensions |
30
x 20 mm |
| Image
resolution |
3000x2000
pixels(4000x4000 optional) |
| Intensity
levels |
12bit |
| Image
capture rate |
1
fps |
| Optical
resolution |
<
3.6 µm (in the center) |
Aberration
measurement |
36
Zernike polynomials
[see
Zernike Polynomials] |
| Maximum
aberration amplitude |
20
λ |
| Measurement
accuracy |
λ/15 |
Typical
time of aberration
measurement and compensation |
24 ms |
| Optical
filters |
Green,
red, blue, narrow bands selectable |
Focusing:
- Coarse
- Fine |
Manual
Automatic (adaptive compensation) |
| Illumination
type |
Donut illumination with polarization-based
corneal reflection suppression |
| Distance
from patient eye |
>45mm |
| Retina
illumination |
<6*E5
lux (<50mñ) (photographing)
<900 lux (alignment lamp) |
| Light
source |
Fiber-optic; 32 steps of
exposition settings;
255 intensity levels for
alignment lamp |
| Reference source wavelength |
0.785 µm |
| Alignment camera resolution |
640x480 pixels |
| Auto
focusing system |
18-electrode
bimorph mirror
with Shack-Hartmann wavefront sensor |
| Power
source |
120V or 220V; frequency 50/60Hz |
| Power consumption |
Optical unit: < 150W;
Illumination unit:
<400W |
| Dimensions of optical unit |
350 (W) x 550 (D) x 650 (H) mm |
| Weight of optical unit |
<40kg |
;)