Light-influencing element for influencing the light emission of essentially point light sources

Patent metadata

Field	Value
Publication number	US-9618182-B2
Application number	US-201214131628-A
Country	US
Kind code	B2
Filing date	Jul 5, 2012
Priority date	Jul 8, 2011
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A light-influencing element for influencing the light emission of essentially point light sources having at least two lenses which are juxtaposed and integrally connected to each other, each having a cavity defining a light entrance section of the lens, and a light exit surface opposite the light entrance section, at least two of the lenses being designed differently with regard to their light entrance sections.

First claim

The invention claimed is:

1. A luminaire comprising:
a plurality of substantially punctiform light sources arranged next to one another; and
a light-influencing element for influencing light emission of the substantially punctiform light sources, wherein the light-influencing element has a plurality of lenses which are assigned to the light sources, arranged next to one another and integrally connected in one piece, which lenses each have a cavity, which forms a light-entry region of the lens, and a light-exit face lying opposite to the light-entry region,
wherein at least two of the lenses have different designs in respect of the light-entry regions thereof; and
wherein all lenses have rectangular flat light-exit faces with an identical design such that the light-influencing element in total has a substantially flat light-exit face.

2. The luminaire as claimed in claim 1 , wherein the lenses substantially have a frustum-like design, wherein lateral faces of the lenses have an identical design.

3. The luminaire as claimed in claim 1 , wherein the cavities of at least some lenses have a polygonal cross section.

4. The luminaire as claimed in claim 1 , wherein the cavities of at least some lenses have a rotationally symmetric design.

5. The luminaire as claimed in claim 1 , wherein the cavities of the lenses with different designs differ in the design of a base area.

6. The luminaire as claimed in claim 5 , wherein the base area of at least one of the cavities has a notch.

7. The luminaire as claimed in claim 6 , wherein a plurality of lenses each have a notch, which notches have different orientations.

Assignees

• Ebner Stephan
• Gassner Patrik
• Zumtobel Lighting Gmbh

Inventors

• Ebner Stephan
• Gassner Patrik

Classifications

• F21V5/048 Primary

  the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses · CPC title

• G02B19/0066

  in the form of an LED array · CPC title

• B29C45/0003

  of successively moulded portions rigidly joined to each other · CPC title

• F21K9/60

  Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title