Visionix EyeRefract - Computer

Visionix EyeRefract User Guide
85
Appendices
Diaphragm (pinhole)
1.5 mm
Mechanical
FOV (Field of View) when prisms are
not engaged
21.4º at 20mm VD
FOV with prisms engaged
12.5º minimum
Prism engagement
Manual
Pupil-distance adjustment
48 to 85 mm
Thickness of the optical path window
to exit window
90 mm
Corneal vertex distance (VD)
8mm, 10mm, 12mm, 14mm, 16mm
Convergence
400mm / 700 mm
NV and FV convergence angle
accuracy
0.25º
Near-Vision Target
Range
250-700mm
Target type
screen 7":
Resolution:1024*600
Distance sensing
Yes
Vertical adjustment
No
Velocities
Prism velocity
Full range (0D to 20D): 1 sec
Wheel velocity
Full wheel round (5 or 7 stations): 0.4 sec
Axis velocity
0 to 180 deg: 2 sec
PD velocity
Full range: 2 sec
Focus velocity
Laser
Wavelength
780 nm
Beam size
<1.5 mm
Laser output power
<30 micro W
Note: Class 1 laser product
Computer
General
Mother board and CPU requirements
Core i5
Storage
WD 500 GB
Memory
4 GB DDR3