| 摘要 |
Provided is an optical apparatus including a filter (102) that includes a first surface (105) intersecting a rotation axis at a predetermined angle and a second surface (106) orthogonal to the rotation axis and rotates around the rotation axis, a filter (110) that is arranged adjacent to the filter (102), includes a third surface (115) and a fourth surface (116) in a spatial relationship of point-symmetry to the first surface (105) and the second surface (106) about a point on the rotation axis between the filters, and rotates in an opposite direction of the filter (102) around the rotation axis.
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