Patent ID: 11921235
Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
Field: Optics (Instruments)
Classification: CPC B  G | IPC G

Claim 5:
6. The light reflection device according to claim 5, wherein the reflection surface includes:
a first reflection surface formed in a planar shape inclined with respect to a plane perpendicular to the rotation axis; and
a second reflection surface formed in a planar shape inclined with respect to a plane perpendicular to the rotation axis,
wherein a direction in which the first reflection surface is inclined with respect to the plane perpendicular to the rotation axis and a direction in which the second reflection surface is inclined with respect to the plane perpendicular to the rotation axis are opposite,
wherein the incident light is reflected by the first reflection surface and then reflected by the second reflection surface,
wherein the first reflection surface and the second reflection surface are formed to be symmetrical to each other with respect to a symmetry plane,
wherein a mirror image of the symmetry plane with respect to the first reflection surface and a mirror image of the symmetry plane with respect to the second reflection surface are identical to each other and in a plane, and
wherein the rotation axis is included in the plane of the mirror images.