Lens and lamp
AssigneeKoito Manufacturing Co., Ltd.
InventorKenta Mukojima
Life of this patent
Estimating the term…
Abstract
A condenser lens includes an exit surface divided into a plurality of light controlling surfaces. The exit surface includes a first exit region and a second exit region. The first exit region includes a plurality of first light controlling surfaces arrayed in a predetermined direction. The second exit region is located side by side with the first exit region and includes a plurality of second light controlling surfaces arrayed in the predetermined direction. A border between adjacent first light controlling surfaces and a border between adjacent second light controlling surfaces are out of alignment in the predetermined direction.
Claims4
A lamp, comprising:
- a light emitting element;
- a lens for receiving light emitted from the light emitting element;
- and
- a rotary reflector configured to rotate about an axis of rotation while reflecting light transmitted through the lens, wherein
- the lens comprises an exit surface divided into a plurality of light controlling surfaces,
- the exit surface includes
- a first exit region in which a plurality of first light controlling surfaces of the plurality of light controlling surfaces are arrayed in a predetermined direction, and
- a second exit region that is located side by side with the first exit region and in which a plurality of second light controlling surfaces of the plurality of light controlling surfaces are arrayed in the predetermined direction,
- the lens is configured such that a border between adjacent two of the first light controlling surfaces and a border between adjacent two of the second light controlling surfaces are out of alignment in the predetermined direction, and
- the rotary reflector is configured to reflect and scan a luminous pattern of the first exit region and the second exit region to form at least a part of a light distribution pattern.
Dependencies are inferred from the claim text.