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US 12,146,787 B2Granted
Optical control apparatus and optical control method
AssigneeNEC Corporation
InventorsRyuichi Akashi, Ryo Yamakabe, Yuka Ogino, Takahiro Toizumi, Chisato Funayama, Keiichi Chono, Masato Tsukada
Life of this patent
Estimating the term…
Abstract
The optical control apparatus includes a light source, a light collecting section, and an optical path control section. The light source emits light. The light collecting section collects the light emitted from the light source and illuminates the light onto an object.
Claims3
An optical control apparatus comprising:
- a lens comprising a pair of plates capable of blocking a portion of a path of light emitted from a light source and provided with chipped portions of a half-moon shape, and configured to collect light passing through an opening formed by said pair of plates and illuminate the light onto an object;
- and
- a processor configured to change a light shading range of the light and an illumination direction of the light onto the object by moving the pair of plates so as to change a position of the opening in a plane perpendicular to an optical axis of the light.
Dependencies are inferred from the claim text.