Optical apparatus, on-board system, and movable apparatus
AssigneeCanon Kabushiki Kaisha
InventorsTakashi Hanasaka, Koichi Fukuda, Shunichi Wakashima, Kohei Okamoto
Life of this patent
Estimating the term…
Abstract
An optical apparatus includes a light emitter including at least one light emitting element, a light receiver including a plurality of light receiving elements, an optical element including a plurality of microlenses, an optical system including a first telecentric lens, and a processor configured to acquire distance information to an object based on a time required from when the light emitter emits light to when the light receiver receives the light reflected by the object. The number of microlenses is larger than the number of light emitting elements. The plurality of microlenses and the first telecentric lens form an afocal system.
Claims18
An optical apparatus comprising:
- a light emitter including at least one light emitting element;
- a light receiver including a plurality of light receiving elements;
- an optical element including a plurality of microlenses;
- an optical system including a first telecentric lens;
- and
- a processor configured to acquire distance information to an object based on a time required from when the light emitter emits light to when the light receiver receives the light reflected by the object,
- wherein the number of microlenses is larger than the number of light emitting elements,
- wherein the plurality of microlenses and the first telecentric lens form an afocal system,
- wherein the plurality of microlenses splits the light emitted from the light emitter into a plurality of split beams, and
- wherein the plurality of split beams are projected onto the object via the first telecentric lens.
Dependencies are inferred from the claim text.