6
1. Eyepiece
Eyepiece part is a screw type focusing unit with focusing range of ±5D,
adaptable to different eye-sights of human eyes.
*2. Prism Compensator
It is used to measure prism lens with prism degree bigger than 5
∆
.
3. Lens Pressing Mechanism
3 plastic pressing feet equipped with spring are used to press lens, able to
stably press lens with any shape of surface, with no damage to lens surface.
4. Measurement Bearing Seal
It can hold lens with any shape of surface with no damage to lens surface.
5. Astigmatism Turning Hand-Wheel
It is used to measure and locate astigmatism axis angle of cylindrical lens
and basal angle of prism lens.
6. Lens Pushing Board
When lens on the lens frame is conducted, lower part of lens frame (i.e. two
lens rings) shall contact the lens pushing board.
7. Diameter Indication Measuring Scale
When lens pushing board contacts edge of lens, it is possible to read lens
diameter.
8. Inclining Angle Adjusting Handle of Device
It is able to enable measurement user to adjust inclining angle of the device
easily, who can work with a comfortable posture. By rotating backwards
the adjusting handle, measurement user may tilt me device to a proper angle
according to specific status of work table, then simply lock up the handle.
9. Power Supply Socket
10. Dot-Making Mechanism
This mechanism consists of 3 identical dot-making pens connected into
a line, where, one in the middle is used to mark lens center, and connected
line of marking dots of 3 pens is used to mark astigmatism axis angle of lens
and basal angle of prism lens.
11. InkpadBox
It is used to store inkpad or ink for print.
Содержание LM 300
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