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Vehicle headlight having a light source
US2022010940A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022010940-A1 |
| Application number | US-201917291741-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 21, 2019 |
| Priority date | Nov 8, 2018 |
| Publication date | Jan 13, 2022 |
| Grant date | — |
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- Title
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Abstract
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A vehicle headlight includes a light source and an adjustable objective. The light source is designed as a field having a plurality of microlight sources. The adjustable objective includes at least three lens groups, at least two of which are designed to be displaceable along the optical axis in order to adjust the focal length and the focal plane.
First claim
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1 - 9 . (canceled) 10 . A vehicle headlight, comprising: a light source having a field comprising a plurality of microlight sources; and an adjustable objective comprising at least three lens groups, wherein at least two lens groups of the at least three lens groups which are displaceable along an optical axis of the vehicle headlight to adjust a focal length and a focal plane. 11 . The vehicle headlight of claim 10 , wherein the microlight sources have microLEDs or micromirror devices. 12 . The vehicle headlight of claim 10 , wherein the field 30,000 to 1.5 million microlight sources. 13 . The vehicle headlight of claim 10 , wherein each of the at least three lens groups has at least one optical lens. 14 . The vehicle headlight of claim 10 , wherein the adjustable objective has at least one aperture diaphragm. 15 . The vehicle headlight of claim 10 , wherein the adjustable objective additionally contains an iris diaphragm. 16 . The vehicle headlight of claim 10 , wherein one or more surfaces of one or more optical elements of the adjustable objective are aspherical, and have diffractive structures or an anti-reflection coating. 17 . The vehicle headlight of claim 10 , wherein materials of individual optical elements of the adjustable objective have different refractive indices. 18 . The vehicle headlight of claim 10 , further comprising: DC motors, stepper motors, or piezo actuators arranged to displace the at least two lens groups.
Assignees
Inventors
Classifications
arranged in a matrix · CPC title
- F21S41/635Primary
by moving refractors, filters or transparent cover plates · CPC title
characterised by screens, non-reflecting members, light-shielding members or fixed shades · CPC title
by moving reflectors · CPC title
Lens surfaces, e.g. coatings or surface structures · CPC title
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- What does patent US2022010940A1 cover?
- A vehicle headlight includes a light source and an adjustable objective. The light source is designed as a field having a plurality of microlight sources. The adjustable objective includes at least three lens groups, at least two of which are designed to be displaceable along the optical axis in order to adjust the focal length and the focal plane.
- Who is the assignee on this patent?
- Daimler Ag
- What technology area does this patent fall under?
- Primary CPC classification F21S41/635. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Jan 13 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).