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Home » Products » Opthalmic Instruments » Lensometer Corona Target

Lensometer Corona Target

Lensometer Corona Target
Lensometer Corona Target
Product Code : SS526
Brand Name : SCISOL
Product Description

Lensometer Corona Target

Lenso meter. 
A lens meter or lensometer, also known as a foci meter, is an ophthalmic instrument. It is mainly used by optometrists and opticians to verify the correct prescription in a pair of eyeglasses, to properly orient and mark uncut lenses, and to confirm the correct mounting of lenses in spectacle frames. Lens meters can also verify the power of contact lenses, if a special lens support is used.
The parameters appraised by a lens meter are the values specified by an ophthalmologist or optometrist on the patient's prescription: sphere, cylinder, axis, add, and in some cases, prism. The lens meter is also used to check the accuracy of progressive lenses, and is often capable of marking the lens center and various other measurements critical to proper performance of the lens. It may also be used prior to an eye examination to obtain the last prescription the patient was given, in order to expedite the subsequent examination.

Specifications

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Type

:

Ocular Type External Reading System

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Vertex Power Range

:

± 25D Step : 0.25D Step Up to± 10D 0.50D Step Beyond ± 10D

*

Cylindrical Axis Scale

:

0 to 180° (1° step)

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Prismatic Power Range

:

5 in the View field (1 step)

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Target

:

Pins hole Corona

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Eyepiece Focusing

:

+ 3D to -5D

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Diameter Of Lens Accommodated

:

30 to 80mm

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Tilting Angle

:

30° to 90°

*

Light Source

:

AC 220V 3W LED