Patent ID: 11933894
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical scanner comprising:
at least one light source configured to emit light;
a steering unit configured to perform scanning in a first direction based on the light emitted from the at least one light source, the steering unit comprising a plurality of first prisms, and each of the plurality of first prisms comprising an incident facet configured to pass the light emitted from the at least one light source, and an output facet configured to refract and output the light; and
a polygon mirror configured to perform, by using the light output from the steering unit, scanning in a second direction different than the first direction based on a rotation of the polygon mirror, the polygon mirror comprising a plurality of reflective facets, and each of the plurality of reflective facets being configured to reflect the light output from the steering unit,
wherein all the plurality of reflective facets of the polygon mirror have flat surfaces and are disposed circularly around a center point of the polygon mirror in a circumferential direction, and an angle of inclination of each of the plurality of reflective facets that is inclined from the first direction, sequentially increases by a half of a vertical resolution of the at least one light source in the circumferential direction,
wherein the angle of inclination of each of the plurality of reflective facets is greater than or equal to zero,
wherein the plurality of first prisms are disposed circularly around a center point of the steering unit, and
wherein the steering unit further comprises a plurality of second prisms corresponding to the plurality of first prisms, and disposed outside of the plurality of first prisms.