# US 2017/0284640 A1 · Lighting device

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- Number: US 2017/0284640 A1
- Document ID: US20170284640A1
- Status: Published application
- Kind: A1
- Application number: 15/507,572
- Filed: 2015-08-27
- Published: 2017-10-05
- Earliest claimed: 2014-08-29
- Assignees: Sal London Limited
- Applicants: Sal London Limited
- Inventors: Ian Martin
- Web page: https://patentgrep.com/patent/US20170284640A1

## CPC

- F21V 14/02: by movement of light sources {(in vehicle head lamps F21S41/657)}
- F21S 6/005: {with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting}
- F21S 8/081: {of low-built type, e.g. landscape light}
- F21V 17/105: {using magnets}
- F21V 21/34: Supporting elements displaceable along a guiding element {(telescopic mounting of lighting devices F21V21/22)}
- F21V 23/0485: {the sensor sensing the physical interaction between a user and certain areas located on the lighting device, e.g. a touch sensor}
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS

## Abstract

A lighting device for illuminating a room or enclosed space comprising: a light source; and a support adapted to support the light source, the support having a surface which defines a guide path. The light source is adapted to be movable relative to the support along the guide path between first and second lighting positions.

## Claims

### Claim 1

A lighting device for illuminating a room or enclosed area comprising:
a light source; and
a support adapted to support the light source, the support having a surface which defines a guide path,
wherein the light source is adapted to be movable relative to the support along the guide path between first and second lighting positions.

### Claim 2 (depends on 1)

The lighting device of claim 1, wherein the light source is adapted to emit light of a first intensity at the first lighting position and to emit light of a second, differing intensity at the second lighting position.

### Claim 3 (depends on 2)

The lighting device of claim 2, wherein the light source is adapted to be off when at the first lighting position and to be on when at the second lighting position.

### Claim 4 (depends on 2)

The lighting device of claim 2, wherein the light source is adapted to gradually change the intensity of emitted light as it is moved between the first and second lighting positions.

### Claim 5 (depends on 1)

The lighting device of claim 1, wherein the light source is adapted to move between the first and second lighting positions in response to the lighting device being activated or deactivated.

### Claim 6 (depends on 1)

The lighting device of claim 1, further comprising a drive arrangement adapt to move the light source between the first and second lighting positions.

### Claim 7 (depends on 6)

The lighting device of claim 6, wherein the drive arrangement comprises at least one of:
a motor and pulley system at least partially housed within the support; a magnetic propulsion system at least partially housed within the support;
a flexible screw arrangement at least partially housed within the support;
a pneumatic propulsion system at least partially housed within the support;
a rack and pinion mechanism at least partially housed within the support;
a tension spring at least partially housed within the support;
a threaded rod having sections with differing thread lead; and
a gearing arrangement at least partially housed within the support.

### Claim 8 (depends on 6)

The lighting device of claim 6, wherein the light source is magnetically coupled to the drive arrangement.

### Claim 9 (depends on 8)

The lighting device of claim 8, wherein the light source is adapted to generate light through electromagnetic induction.

### Claim 10 (depends on 1)

The lighting device of claim 1, wherein the light source comprises a plurality of sub light sources, and wherein the plurality of sub light sources are adapted to move relative to each other as the light source is moved between the first and second lighting positions.

### Claim 11 (depends on 1)

The lighting device of claim 1, wherein the lighting device is adapted to be floor-standing.

### Claim 12

(canceled)