# US 10,481,316 B2 · Light emitting arrangement for illuminated surfaces

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- Number: US 10,481,316 B2
- Document ID: US10481316B2
- Status: Granted
- Kind: B2
- Application number: 15/541,571
- Filed: 2015-12-18
- Published: 2017-12-07
- Granted: 2019-11-19
- Earliest claimed: 2015-01-06
- Assignees: Signify Holding B.V.
- Applicants: Signify Holding B.V.
- Inventors: Ties Van Bommel; Rifat Ata Mustafa Hikmet
- Web page: https://patentgrep.com/patent/US10481316B2

## CPC

- G02B 6/001: {the light being emitted along at least a portion of the lateral surface of the fibre}
- F21S 8/03: {of surface-mounted type (F21S8/02, F21S8/04 take precedence; details of wall or floor bases F21V21/02)}
- F21V 9/45: by adjustment of photoluminescent elements
- F21V 13/08: the elements being filters or photoluminescent elements and reflectors
- F21V 33/0012: {Furniture (hospital beds F21V33/0072)}
- F21V 33/0028: {Decorative household equipment, e.g. plant holders or food dummies}
- G02B 6/0006: {Coupling light into the fibre (in general G02B6/4298)}
- F21V 33/006: {General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols}
- F21W 2121/00: Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
- F21W 2131/00: Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W 2131/301: for furniture
- F21Y 2105/00: Planar light sources
- F21Y 2115/10: Light-emitting diodes [LED]
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

## Abstract

A light emitting arrangement (100, 200, 300) is provided, comprising: —a body (10) of solid material having a surface (11); —a light guiding member (101, 110) partially embedded into said body, having a plurality of discrete light outcoupling regions (103) comprising light outcoupling means (230, 730, 830, 930) distributed along a longitudinal direction of the light guiding member, and a plurality of discrete, non-outcoupling regions (102) distributed along a longitudinal direction of the light guiding member, wherein said plurality of light non-outcoupling regions of the light guiding member are embedded by said body and said plurality of light outcoupling regions of the light guiding member are exposed on the surface of said body, wherein said non-outcoupling regions (102) form light incoupling regions comprising light incoupling means (220, 320, 420, 520, 620); and —a plurality of solid state light sources (12) embedded within said body (10) of solid material arranged to emit light towards said light incoupling regions. The light emitting arrangement provides a body with an illuminated surface, and the plurality of light outcoupling regions enables efficient lighting, with no or little loss of light.

## Claims

### Claim 1

A light emitting arrangement comprising:
a body of solid material having a surface;
a light guiding member partially embedded into the body, the light guiding member having a plurality of discrete light outcoupling regions and a plurality of discrete light non-outcoupling regions distributed along a longitudinal direction of the light guiding member, wherein the plurality of light non-outcoupling regions of the light guiding member are embedded in the body and the plurality of light outcoupling regions of the light guiding member are exposed on the surface of the body, wherein the plurality of light outcoupling regions comprise light outcoupling elements and the plurality of light non-outcoupling regions form light incoupling regions comprising light incoupling elements, and wherein at least one of the plurality of light outcoupling regions is coupled to two of the plurality of light non-outcoupling regions; and
a plurality of solid state light sources embedded within the body and arranged to emit light towards the light incoupling regions.

### Claim 2 (depends on 1)

The light emitting arrangement according to claim 1, further comprising at least one further light incoupling region comprising a light incoupling element located at a lateral face of the light guiding member.

### Claim 3 (depends on 1)

The light emitting arrangement according to claim 1, further comprising at least two further light incoupling regions comprising light incoupling elements located at opposing lateral faces of the light guiding member.

### Claim 4 (depends on 1)

The light emitting arrangement according to claim 1, wherein the plurality of light non-outcoupling regions forming light incoupling regions are evenly distributed along the length of the light guiding member.

### Claim 5 (depends on 1)

The light emitting arrangement according to claim 1, wherein at least one of the light incoupling elements or at least one of the light outcoupling elements comprises a wavelength converting material.

### Claim 6 (depends on 1)

The light emitting arrangement according to claim 1, wherein the light incoupling elements comprises a coating covering a part of the surface of the light guiding member.

### Claim 7 (depends on 1)

The light emitting arrangement according to claim 1, wherein the light outcoupling elements comprises a coating covering a part of the surface of the light guiding member.

### Claim 8 (depends on 1)

The light emitting arrangement according to claim 1, wherein at least one of the light incoupling elements and the light outcoupling elements comprises a coating enclosing a longitudinal portion of the light guiding member.

### Claim 9 (depends on 1)

The light emitting arrangement according to claim 1, wherein the light guiding member is an optical fiber core.

### Claim 10 (depends on 1)

The light emitting arrangement according to claim 1, further comprising a protective cladding enclosing parts of the light guiding member not associated with light incoupling elements or light outcoupling elements.

### Claim 11 (depends on 1)

The light emitting arrangement according to claim 1, wherein the surface of the body is planar and the light guiding member is at least partially curved.

### Claim 12 (depends on 1)

The light emitting arrangement according to claim 1, wherein less than 70% by volume of the light guiding member is embedded in the body, such that at least 30% by volume of the light guiding member is exposed on the surface of the body.

### Claim 13 (depends on 1)

The light emitting arrangement according to claim 1, wherein less than 50% by volume of the light guiding member is embedded in the body, such that at least 50% by volume of the light guiding member is exposed on the surface of the body.

### Claim 14 (depends on 1)

The light emitting arrangement according to claim 1, wherein the body of solid material comprises, forms part of, or is adapted to be arranged on at least one of a wall, a ceiling, or a floor, or comprises or forms part of a piece of furniture or interior decoration.

### Claim 15 (depends on 2)

The light emitting arrangement according to claim 2, further comprising at least one further solid state light source arranged to emit light towards the light incoupling elements located at the lateral face of the light guiding member.

### Claim 16 (depends on 3)

The light emitting arrangement according to claim 3, further comprising at least two further solid state light sources arranged to emit light towards a respective light incoupling element located at opposing lateral faces of the light guiding member.

### Claim 17 (depends on 1)

The light emitting arrangement according to claim 1, wherein the light incoupling elements comprise an optically coupling and transparent material.

### Claim 18 (depends on 1)

The light emitting arrangement according to claim 1, wherein the light outcoupling elements comprise a light outcoupling material or a light outcoupling structure.

### Claim 19 (depends on 18)

The light emitting arrangement according to claim 18, wherein the light outcoupling material or the light outcoupling structure is diffracting, refracting, or scattering.

### Claim 20 (depends on 18)

The light emitting arrangement according to claim 18, wherein the light outcoupling structure is etched into material of the light guiding member.
