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US 12,013,092 B2Granted
Automotive lamp optical element and automotive headlamp
AssigneeHasco Vision Technology Co., Ltd.
InventorsHe Zhu, Dapan Zhang, Zhiping Qiu, Wenhui Sang
Life of this patent
Estimating the term…
Abstract
Provided is an automotive lamp optical element and an automotive headlamp. The automotive lamp optical element includes a light-incident portion, a light-passing portion and a light-emitting portion sequentially connected and integrally formed. The light-incident portion is configured to focus and emit light from a light source into the light-passing portion. The area of a longitudinal section of the light-passing portion gradually increases in an optical axis direction. The light-emitting portion protrudes in a direction facing away from the light-incident portion and is configured to refract light emitted through the light-passing portion.
Claims15
An automotive lamp optical element, comprising:
- a light-incident portion;
- a light-passing portion;
- and
- a light-emitting portion,
- wherein the light-incident portion, the light-passing portion and the light-emitting portion are sequentially connected and integrally formed, the light-incident portion is configured to focus and emit light from a light source into the light-passing portion, an area of a longitudinal section of the light-passing portion gradually increases in an optical axis direction, and the light-emitting portion protrudes in a direction facing away from the light-incident portion and is configured to refract light emitted through the light-passing portion, wherein the longitudinal section of the light-passing portion is a section formed by a plane perpendicular to an optical axis cutting through the light-passing portion,
- wherein the light-emitting portion includes a first light-emitting portion and a second light-emitting portion, the first light-emitting portion and the second light-emitting portion are sequentially connected and integrally formed, the first light-emitting portion is connected to the light-passing portion, and an end surface of the second light-emitting portion facing away from the first light-emitting portion serves as a light-emitting surface and is a curved surface;
- wherein four side surfaces of the first light-emitting portion each are an inclined surface, a longitudinal section of the first light-emitting portion perpendicular to the optical axis has a rectangular shape, and an area of the longitudinal section of the first light-emitting portion gradually decreases in the optical axis direction, and wherein the longitudinal section of the first light-emitting portion is a section formed by a plane perpendicular to the optical axis cutting through the first light-emitting portion.
4 more elements
An automotive headlamp, comprising:
- an automotive lamp optical element, a circuit board, and a radiator,
- wherein the automotive lamp optical element is disposed on one side of the circuit board, the radiator is mounted on another side of the circuit board, a light source is disposed on the circuit board,
- the automotive lamp optical element includes a light-incident portion, a light-passing portion and a light-emitting portion, wherein the light-incident portion, the light-passing portion and the light-emitting portion are sequentially connected and integrally formed, the light-incident portion is configured to focus and emit light from the light source into the light-passing portion, an area of a longitudinal section of the light-passing portion gradually increases in an optical axis direction, and the light-emitting portion protrudes in a direction facing away from the light-incident portion and is configured to refract light emitted through the light-passing portion, wherein the longitudinal section of the light-passing portion is a section formed by a plane perpendicular to an optical axis cutting through the light-passing portion, and
- the light source is disposed directly facing to the light-incident portion;
- wherein the light-emitting portion includes a first light-emitting portion and a second light-emitting portion, the first light-emitting portion and the second light-emitting portion are sequentially connected and integrally formed, the first light-emitting portion is connected to the light-passing portion, and an end surface of the second light-emitting portion facing away from the first light-emitting portion serves as a light-emitting surface and is a curved surface;
- wherein four side surfaces of the first light-emitting portion each are an inclined surface, a longitudinal section of the first light-emitting portion perpendicular to the optical axis has a rectangular shape, and an area of the longitudinal section of the first light-emitting portion gradually decreases in the optical axis direction, wherein the longitudinal section of the first light-emitting portion is a section formed by a plane perpendicular to the optical axis cutting through the first light-emitting portion.
3 more elements
Dependencies are inferred from the claim text.