Headlight lens for a motor vehicle headlight

Patent metadata

Field	Value
Publication number	US-2019309921-A1
Application number	US-201716314928-A
Country	US
Kind code	A1
Filing date	Jun 9, 2017
Priority date	Jul 27, 2016
Publication date	Oct 10, 2019
Grant date	—

Abstract

A monolithic headlight lens is provided for a vehicle headlight with a light source, for example for a motor vehicle headlight, wherein the headlight lens includes a light entry face and a light exit face through which light that has entered into the light entry face exits from the headlight lens with a bright-dark boundary (HDG) without the headlight lens including any optical structure that is imaged as a bright-dark boundary (HDG).

First claim

1 - 10 . (canceled)

11 . A vehicle headlight comprising
a headlight lens comprising a light entry face and a light exit face through which light irradiated into the light entry face exits from the headlight lens with a bright-dark boundary, the headlight lens being configured that the bright-dark boundary being exclusively generated by a relation between the light entry face and the light exit face; and a light source for irradiating light into the light entry face.

12 . The vehicle headlight of claim 11 wherein no shield being imaged as a bright-dark boundary is provided.

13 . The vehicle headlight of claim 11 wherein no optical structure being imaged as a bright-dark boundary is provided.

14 . The vehicle headlight of claim 11 wherein the vehicle headlight does not comprise any secondary optical system for imaging the headlight lens or the light exit face of the headlight lens.

15 . The vehicle headlight of claim 11 wherein the headlight lens is limited by a marginal area between the light entry face and the light exit face, the marginal area not being provided as a TIR face.

16 . The vehicle headlight of claim 13 wherein the headlight lens is limited by a marginal area between the light entry face and the light exit face, the marginal area not being provided as a TIR face.

17 . The vehicle headlight of claim 16 wherein the light entry surface is concavely shaped.

18 . The vehicle headlight of claim 11 wherein the light entry surface is concavely shaped.

19 . The vehicle headlight of claim 11 wherein the light source is attached to the light entry surface.

20 . The vehicle headlight of claim 16 wherein the light source is attached to the light entry surface.

21 . The vehicle headlight of claim 11 wherein the light source is arranged following the contour of the light entry face at a distance from the light entry face

22 . The vehicle headlight of claim 11 wherein the light source is arranged following the contour of the light entry face at a distance of no more than 2 mm from the light entry face.

23 . A vehicle headlight comprising
a headlight lens comprising
a light entry face and
a light exit face through which light irradiated into the light entry face exits from the headlight lens with a bright-dark boundary, the headlight lens being configured that the bright-dark boundary being exclusively generated by the contour of the light exit face without the headlight lens comprising any optical structure that is imaged as a bright-dark boundary; and
a light source for irradiating light into the light entry face.

24 . The vehicle headlight of claim 23 wherein no shield being imaged as a bright-dark boundary is provided.

25 . The vehicle headlight of claim 23 wherein neither no optical structure being imaged as a bright-dark boundary is provided.

26 . The vehicle headlight of claim 23 wherein the vehicle headlight does not comprise any secondary optical system for imaging the headlight lens or the light exit face of the headlight lens.

27 . The vehicle headlight of claim 23 wherein the headlight lens is limited by a marginal area between the light entry face and the light exit face, the marginal area not being provided as a TIR face.

28 . The vehicle headlight of claim 25 wherein the headlight lens is limited by a marginal area between the light entry face and the light exit face, the marginal area not being provided as a TIR face.

29 . The vehicle headlight of claim 28 wherein the light entry surface is concavely shaped.

30 . The vehicle headlight of claim 28 wherein the light source is attached to the light entry surface.

31 . The vehicle headlight of claim 23 wherein the light source is attached to the light entry surface.

32 . The vehicle headlight of claim 23 wherein the light source is arranged following the contour of the light entry face at a distance from the light entry face

33 . The vehicle headlight of claim 23 wherein the light source is arranged following the contour of the light entry face at a distance of no more than 2 mm from the light entry face.

34 . A vehicle having a headlight, the headlight comprising
a headlight lens comprising
a light entry face and
a light exit face through which light irradiated into the light entry face exits from the headlight lens with a bright-dark boundary, the headlight lens being configured that the bright-dark boundary being exclusively generated by a relation between the contour of the light entry face and the contour of the light exit face; wherein no optical structure being imaged as a bright-dark boundary is provided and a marginal area between the light entry face and the light exit face, the marginal area not being provided as a TIR face.
a light source for irradiating light into the light entry face.

35 . The vehicle headlight of claim 11 wherein no shield being imaged as a bright-dark boundary is provided.

36 . The vehicle of claim 34 wherein the light entry surface is concavely shaped.

37 . The vehicle of claim 34 wherein the light source is attached to the light entry surface.

38 . The vehicle of claim 34 wherein the headlight is integrated in a bumper of the vehicle.

Assignees

• Docter Optics Se

Inventors

• Tessmer Manuel
• Mozaffari-Afshar Mohsen
• Kühl Siemen

Classifications

• F21S41/255

  Lenses with a front view of circular or truncated circular outline · CPC title

• F21S41/155

  Surface emitters, e.g. organic light emitting diodes [OLED] · CPC title

• F21S41/285

  Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805 · CPC title

• F21S41/275 Primary

  Lens surfaces, e.g. coatings or surface structures · CPC title

• F21S41/143

  the main emission direction of the LED being parallel to the optical axis of the illuminating device · CPC title