Lighting assembly comprising a shutter that consists of a plurality of apertures

Patent metadata

Field	Value
Publication number	US-2017307177-A1
Application number	US-201515518019-A
Country	US
Kind code	A1
Filing date	Oct 15, 2015
Priority date	Oct 16, 2014
Publication date	Oct 26, 2017
Grant date	—

Abstract

A light assembly includes a light source, and a micromechanical shutter arrangement having a two-dimensional arrangement of closable shutter openings, wherein at least one shutter opening has a rectangular shape with a length and a width, and the length is greater than the width. The light assembly may be configured as a headlamp for a motor vehicle.

First claim

1 - 19 . (canceled)

20 . A lighting assembly comprising:
a light source, and a micromechanical shutter arrangement having a two-dimensional arrangement of closable shutter openings, wherein at least one shutter opening has a rectangular shape with a length and a width, and the length is greater than the width.

21 . The lighting assembly according to claim 20 , wherein the lighting assembly is configured as a headlamp for a motor vehicle.

22 . The lighting assembly according to claim 21 , wherein at least one of the shutter openings in an installation orientation of the lighting assembly is greater in a horizontal direction than in a vertical direction.

23 . The lighting assembly according to claim 22 , wherein the shutter arrangement in the installation orientation of the lighting assembly has a higher resolution in the vertical direction than in the horizontal direction.

24 . The lighting assembly according to claim 20 , wherein the micromechanical shutter arrangement comprises a first shutter opening and a second shutter opening, and
the first shutter opening and the second shutter opening have different sizes.

25 . The lighting assembly according to claim 20 , further comprising an arrangement of converging lenses arranged before the micromechanical shutter arrangement in the light path of the lighting assembly.

26 . The lighting assembly according to claim 25 , wherein the converging lenses are configured as cylindrical lenses.

27 . The lighting assembly according to claim 26 , wherein longitudinal axes of the converging lenses are oriented parallel to the longitudinal directions of the shutter openings.

28 . The lighting assembly according to claim 20 , wherein the light source comprises a halogen incandescent lamp, a gas discharge lamp, a light-emitting diode and/or a laser diode.

29 . The lighting assembly according to claim 20 , wherein the light source comprises a two-dimensional arrangement of individual light sources.

30 . The lighting assembly according to claim 29 , wherein the lighting assembly is configured to switch at least some of individual light sources on and off separately.

31 . The lighting assembly according to claim 20 , wherein the light source is configured to generate a luminance gradient in the plane of the shutter arrangement.

32 . The lighting assembly according to claim 20 , wherein the light source comprises at least one light guide that guides light to the micromechanical shutter arrangement.

33 . The lighting assembly according to claim 20 , wherein the lighting assembly comprises a wavelength-converting element that converts a wavelength of light emitted by the light source.

34 . The lighting assembly according to claim 33 , wherein the wavelength-converting element is arranged behind the micromechanical shutter arrangement in the light path of the lighting assembly.

35 . The lighting assembly according to claim 33 , wherein the wavelength-converting element is subdivided into a two-dimensional arrangement of individual wavelength-converting elements.

36 . The lighting assembly according to claim 35 , wherein the individual wavelength-converting elements are separated from one another by opaque barriers.

37 . The lighting assembly according to claim 35 , wherein each shutter opening of the shutter arrangement is assigned to an individual element of the wavelength-converting element.

38 . The lighting assembly according to claim 20 , wherein the lighting assembly comprises an optical imaging elements arranged after the shutter arrangement in the light path of the lighting assembly.

Assignees

• Osram Opto Semiconductors Gmbh

Inventors

• Groetsch Stefan
• Hiller Uli
• Brandl Michael

Classifications

• F21S41/692 Primary

  Shields, i.e. screens not creating an image meant to be projected · CPC title

• G02B26/023 Primary

  comprising movable attenuating elements, e.g. neutral density filters · CPC title

• F21W2102/00

  Exterior vehicle lighting devices for illuminating purposes · CPC title

• F21S41/683

  by moving screens · CPC title

• F21V11/14 Primary

  with many small apertures · CPC title