1. Set the lensometer on a stable surface. Adjust the height of your chair and the angle of lensometer so that you can easily see through the eyepiece on the lensometer.
|Display sample of measuring scale.|
- · Work right lens first
A General Description of the Lensmeter
Chrome Knurled Sleeve — used to rotate the Reticle to orient prism base.
Prism Compensating Device Knob — Used to read prism amounts greater than five prism diopters.
Lens Holder Handle — Used to hold a lens in place against the aperture.
Marking Device Control — Used to spot the lens at either the Optical Center or Prism Reference Point (PRP).
Gimbal — A pivoting holder that holds the lens in place.
Ink Pad — Holds the spotting ink.
Spectacle Table Lever — Used to raise, or lower the level of the Spectacle Table.
Spectacle Table — The resting place for the frame when neutralizing finished eyewear.
Power Drum — Hand wheel with numbered scale readings between +20 and -20 Diopters.
Locking Lever — Used to elevate or depress the position of the instrument for individual’s height or posture.
Prism Axis Scale — Used for orientation of prism axis
Prism Compensating Device — Used to verify or layout large amounts of prism.
Prism Diopter Power Scale — Displays prism amount.
On-off Switch — Power switch.
Lens Stop — Aperture against which the lens rests.
Cylinder Axis Wheel — Used to orient or neutralize cylinder axis.
Filter Lever — Used to engage or remove green filter.
The eyepiece — mounted in a screw-type focusing mechanism, the eyepiece plays an important role in the accuracy of your readings. It is essential that the eyepiece be focused to the individual eye of each user. It may be fitted with a rubber guard to prevent scratching of the user’s own eyewear. Lamp Access Cover — Provides access to change the lensmeter bulb.