Optical power from focus distance
=================================

The optical power of a lens is a value characterizing the refractive power
of axisymmetric lenses and centered optical systems made of such lenses.

**Links:**

#. `Wikipedia <https://en.wikipedia.org/wiki/Optical_power>`__.

.. py:currentmodule:: symplyphysics.laws.optics.optical_power_from_focus_distance

.. py:data:: focus_distance

    :attr:`~symplyphysics.symbols.optics.focal_length` of the lens.

Symbol:
    :code:`f`

Latex:
    :math:`f`

Dimension:
    :code:`length`


.. py:data:: optical_power

    :attr:`~symplyphysics.symbols.optics.optical_power` of the lens.

Symbol:
    :code:`D`

Latex:
    :math:`D`

Dimension:
    :code:`1/length`


.. py:data:: law

    :code:`D = 1 / f`


    Latex:
        .. math::
            D = \frac{1}{f}