Optical distance difference from optical distances
==================================================

The optical difference in the course of two rays is the difference
in the optical distances traversed by each of the rays

**Links:**

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

..
    TODO elaborate on optical distance

.. py:currentmodule:: symplyphysics.laws.optics.optical_distance_difference_from_optical_distances

.. py:data:: first_optical_distance

    :attr:`~symplyphysics.symbols.optics.optical_distance` of first wave.

Symbol:
    :code:`Lambda_1`

Latex:
    :math:`\Lambda_{1}`

Dimension:
    :code:`length`


.. py:data:: second_optical_distance

    :attr:`~symplyphysics.symbols.optics.optical_distance` of second wave.

Symbol:
    :code:`Lambda_2`

Latex:
    :math:`\Lambda_{2}`

Dimension:
    :code:`length`


.. py:data:: optical_difference_distance

    :attr:`~symplyphysics.symbols.optics.optical_distance` difference between waves.

Symbol:
    :code:`Delta(Lambda)`

Latex:
    :math:`\Delta \Lambda`

Dimension:
    :code:`length`


.. py:data:: law

    :code:`Delta(Lambda) = Lambda_2 - Lambda_1`


    Latex:
        .. math::
            \Delta \Lambda = \Lambda_{2} - \Lambda_{1}