Vehicular lamp
AssigneeKoito Manufacturing Co., Ltd.
InventorYuuji Ishihara
Life of this patent
Estimating the term…
Abstract
In a vehicular lamp, a first zone includes a first incident portion disposed on a radiation axis. A first light guide portion guides light incident from the first incident portion forward. A first radiation portion formed from a first concave surface and a second concave surface deflects the light from the first light guide portion toward a lamp optical axis side and radiates such light forward in a diffused manner. A second zone includes a cylindrical second incident portion disposed on an outer side of the first incident portion. A second light guide portion that is longer in the direction of the radiation axis than the first light guide portion guides light incident from the second incident portion forward. A cylindrical second radiation portion radiates the light from the second light guide portion forward.
Claims5
A vehicular lamp comprising:
- a lamp chamber formed from a lamp body and a front cover;
- a plurality of light emitting elements disposed within the lamp chamber, where a radiation axis of each light emitting element is inclined with respect to a lamp optical axis;
- and
- a plurality of lens members disposed in front of the light emitting elements, wherein each lens member comprises:
- a first zone having a first incident portion disposed on the radiation axis of a light emitting element, a first light guide portion that guides light incident from the first incident portion forward, and a first radiation portion that deflects light from the first light guide portion toward the lamp optical axis side and radiates the light forward in a diffused manner;
- and
- a second zone having a toric second incident portion that is disposed on an outer side of the first incident portion, a second light guide portion that is longer in the direction of the radiation axis of a light emitting element than the first light guide portion and guides light incident from the second incident portion forward, and a toric second radiation portion that radiates the light from the second light guide portion forward;
- and
- wherein each lens member is disposed in front of an associated one of the light emitting elements so as to correspond in a one-to-one manner, and each lens member has a connection portion around the second zone such that the lens member is integratedly connected to an adjacent and separate lens member through the connection portion, and
- the light emitting elements are disposed on a single inclined substrate.
A vehicular lamp comprising:
- a lamp chamber formed from a lamp body and a front cover;
- a plurality of light emitting elements disposed within the lamp chamber, wherein the light emitting elements are disposed on a single inclined substrate and wherein a radiation axis of each semiconductor light emitting element is inclined with respect to a lamp optical axis;
- and
- a plurality of lens members disposed in front of the light emitting elements so as to correspond in a one-to-one manner, wherein each lens member comprises:
- a first zone having a first incident portion disposed on the radiation axis of a light emitting element, a first light guide portion that guides light incident from the first incident portion forward, and a first radiation portion that deflects light from the first light guide portion toward the lamp optical axis side and radiates the light forward in a diffused manner, wherein the first radiation portion is generally circular and divided into a plurality of sections in a vehicle left-right direction;
- a second zone having a toric second incident portion that is disposed on an outer side of the first incident portion, a second light guide portion that is longer in the direction of the radiation axis of a light emitting element than the first light guide portion and guides light incident from the second incident portion forward, and a toric second radiation portion that radiates the light from the second light guide portion forward, wherein the second radiation portion is divided into a plurality of sections in a circumferential direction, with each section having a lens element that refracts light incident to the second incident portion in a predetermined direction per section;
- and
- a connection portion around the second zone such that the lens member is integratedly connected to an adjacent and separate lens member through the connection portion, wherein the connection portion is translucent and formed into a single flat plate shape.
Dependencies are inferred from the claim text.