Tags | |
UUID | 70603219-34ba-11e6-9770-bc764e2038f2 |
The Lensmaker's Equation is used to calculate the focal length of a lens immersed in a medium with an index of refraction of 1. The equation is:
f=[(n−1)∣∣∣1r1±1r2∣∣∣]−1, where:
The positive sign is used when both surfaces are curved outward or both are curved inward; otherwise a negative sign applies. (In vCalc, enter r2 as negative if both surfaces are not curved in the same direction.)
31.3 The lensmaker's equation by Benjamin Crowell, Light and Matter licensed under the Creative Commons Attribution-ShareAlike license.
No comments |