which device is used to measure the power of lens?
Qwerty11111:
A lensmeter or lensometer, also known as a focimeter or vertometer, is an ophthalmicinstrument. It is mainly used by optometristsand 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.
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power of a lens is not measured by any device it is measured by calculating the It by the formula P=1/f where f is focal length P is power and 1 is in meter
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I think a optical center
A lensmeter or lensometer, also known as a focimeter or vertometer, 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.
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