Difference between revisions of Vertex distance
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→Calculation: typo
Viceroy Sam (talk | contribs) (re-order and add notice.) |
Viceroy Sam (talk | contribs) (→Calculation: typo) |
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==Calculation== | ==Calculation== | ||
{{Notice| | {{Notice|Advanced, this information maybe not apply. See above.}} | ||
The effect of vertex distance on the perceived diopter strength of your glasses can be expressed by: | The effect of vertex distance on the perceived diopter strength of your glasses can be expressed by: | ||
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Conceptually, the focus length is reduced (power is increased) because it has moved closer to the source of the image. | Conceptually, the focus length is reduced (power is increased) because it has moved closer to the source of the image. | ||
==References== | ==References== | ||