2.
Name of Parts
2.1 Description of the Front Panel (as shown in Fig.1)
8. Nose Bearer
10. Observation
Window
2. Right Pupil
Measuring Key
6. Pupillary distance
Conversion Key
5. Memory key
Fig. 1
4. Display
Window
3. Lens Pupil
Measuring Key
1. Reset
7. Measuring State
Transition Key
9. Measuring
Window
5
1. Reset
Press this key to actuate the device. In the process of measurement, pressing
the key will enable measured data of the device to be reset to the initial status.
2. Right Pupil Measuring Key
It is used to measure right pupillary distance. Pressing outer side of the key
will make pupillary distance pointer move towards nose bearer. At this time,
the right eye pupillary distance and binocular pupillary distance reduce in
numerical value, and then every pressing of the key allows pointer of the
pupillary distance to move 0.5mm and Right data reduce by 0.5mm.
Pressing inner side of the key will make the pupillary distance pointer move
