Light-emitting module
US-11994660-B2 · May 28, 2024 · US
Optical unit
US11774643B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11774643-B2 |
| Application number | US-202217721489-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 15, 2022 |
| Priority date | Oct 31, 2019 |
| Publication date | Oct 3, 2023 |
| Grant date | Oct 3, 2023 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
An optical unit includes a cylindrical rotatable lens and a light source provided in the rotatable lens. The rotatable lens is configured such that a light output from the light source is incident via an inner circumferential surface and is output via an outer circumferential surface as an irradiating beam, and a predetermined irradiated area is formed by scanning a space in front with the irradiating beam according to a periodical movement of the rotatable lens.
First claim
Opening claim text (preview).
What is claimed is: 1. An optical unit comprising: a cylindrical rotatable lens; and a light source provided in the rotatable lens, wherein the rotatable lens is configured such that a light output from the light source is incident via an inner circumferential surface and is output via an outer circumferential surface as an irradiating beam, and a predetermined irradiated area is formed by scanning a space in front with the irradiating beam according to a periodical movement of the rotatable lens. 2. The optical unit according to claim 1 , wherein the rotatable lens is configured to be rotated around a rotary shaft coupled to a driving unit such that a direction of refraction of a light output from the light source and transmitted through the rotatable lens varies periodically. 3. The optical unit according to claim 2 , wherein the light source is arranged such that a frontal direction of an output surface intersects the rotary shaft. 4. The optical unit according to claim 2 , wherein the rotatable lens is arranged such that the rotary shaft is aligned with a direction of vehicle width of the vehicle. 5. The optical unit according to claim 1 , wherein the light source is configured such that an intensity of light varies in a certain phase range in a period of movement of the rotatable lens.
Assignees
Inventors
Classifications
- G02B3/06Primary
with cylindrical or toric faces · CPC title
Adjusting of projection optics · CPC title
Control of light source other than position or intensity · CPC title
- F21S41/25Primary
Projection lenses · CPC title
- G02B26/101Primary
with both horizontal and vertical deflecting means, e.g. raster or XY scanners (colour television using laser beams scanning a display screen H04N9/3129) · CPC title
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- What does patent US11774643B2 cover?
- An optical unit includes a cylindrical rotatable lens and a light source provided in the rotatable lens. The rotatable lens is configured such that a light output from the light source is incident via an inner circumferential surface and is output via an outer circumferential surface as an irradiating beam, and a predetermined irradiated area is formed by scanning a space in front with the irra…
- Who is the assignee on this patent?
- Koito Mfg Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G02B3/06. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Oct 03 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).