# US 2010/0164411 A1 · Lighting system

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- Number: US 2010/0164411 A1
- Document ID: US20100164411A1
- Status: Published application
- Kind: A1
- Application number: 12/648,334
- Filed: 2009-12-29
- Published: 2010-07-01
- Earliest claimed: 2008-12-30
- Assignees: Qisda Corporation
- Inventors: Tai-Sheng Chen; Hsun-Li Huang; Mong-Yong Sim; Jiung-Cheng Pan; Ho-Tsung Hsueh; Wen-Ming Wu; Cheng-En Wu
- Web page: https://patentgrep.com/patent/US20100164411A1

## CPC

- F21V 23/04: the elements being switches (safety devices F21V25/00)
- F21S 6/002: {Table lamps, e.g. for ambient lighting}
- F21Y 2115/10: Light-emitting diodes [LED]
- 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
- 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 lighting system including a powering rod and a first lighting unit is provided. The powering rod is used for providing power. The first lighting unit includes a housing, a light source, an inner ring body and an outer ring body. The light source is disposed inside the housing. The inner ring body, disposed in the housing, has a hollowed portion for receiving the powering rob and is electrically connected to the powering rod. The outer ring body, disposed on the inner ring body fixed to the housing. The outer ring body is capable of rotating with respect to the inner ring body for rotating the housing. When the outer ring body is rotated to a first position, the first lighting unit is in a first lighting state. When the outer ring body is rotated to a second position, the first lighting unit is in a second lighting state.

## Claims

### Claim 1

A lighting system, comprising:
a powering rod for providing power;
a first lighting unit, comprising:
a housing;
a light source disposed inside the housing;
an inner ring body disposed in the housing, wherein the inner ring body having a hollowed portion for receiving the powering rob is electrically connected to the powering rod; and
an outer ring body disposed on the inner ring body and fixed to the housing, wherein the outer ring body is capable of rotating with respect to the inner ring body for rotating the housing correspondingly, the first lighting unit is in a first lighting state when the outer ring body is rotated to a first position, and the first lighting unit is in a second lighting state when the outer ring body is rotated to a second position.

### Claim 2 (depends on 1)

The lighting system according to claim 1, wherein the first lighting state is a bright state and the second lighting state is a dark state.

### Claim 3 (depends on 2)

The lighting system according to claim 2, wherein when the outer ring body is at the first position, the powering rod provides power to the light source through the inner ring body and the outer ring body for enabling the lighting unit to be in the bright state, and when the outer ring body is at the second position, the powering rod stops providing power to the light source for enabling the first lighting unit to be in the dark state.

### Claim 4 (depends on 2)

The lighting system according to claim 2, wherein the inner ring body has a first metal conductor, the outer ring body has a second metal conductor, and when the outer ring body is at the first position, the first metal conductor and the second metal conductor are electrically connected, the powering rod provides power to the light source for enabling the first lighting unit to be in the bright state.

### Claim 5 (depends on 4)

The lighting system according to claim 4, wherein a first magnet is disposed on the inner ring body, a second magnet is disposed on the outer ring body, and when the outer ring body is rotated between the first position and the second position, the first magnet and the second magnet face each other with the same polarity so that the outer ring body selectively stays at the first position and the second position.

### Claim 6 (depends on 4)

The lighting system according to claim 4, wherein the inner ring body has a protrusion, the outer ring body has a recess used for receiving the protrusion to limit the outer ring body to rotate between the first position and the second position.

### Claim 7 (depends on 4)

The lighting system according to claim 4, wherein the inner ring body has a protrusion, the outer ring body has a first recess and a second recess, and the protrusion is received in the first recess or the second recess for correspondingly positioning the outer ring body selectively at the first position and the second position.

### Claim 8 (depends on 4)

The lighting system according to claim 4, wherein at least one of the first metal conductor and the second metal conductor is a metal elastic piece.

### Claim 9 (depends on 4)

The lighting system according to claim 4, wherein the first metal conductor is a metal pad and the second metal conductor is a metal protrusion.

### Claim 10 (depends on 1)

The lighting system according to claim 1, wherein the first lighting unit further comprises a first control circuit coupled to the light source, and the lighting system further comprises:
a control unit connected to the powering rod for providing a control signal to the first control circuit through the powering rod to control the light source.

### Claim 11 (depends on 10)

The lighting system according to claim 10, further comprising:
a second lighting unit whose structure is the same with that of the first lighting unit, wherein the second lighting unit is used for receiving the powering rob, and the control unit sets the addresses of the first lighting unit and the second lighting unit for controlling the first lighting unit and the second lighting unit according to the addresses being set.

### Claim 12 (depends on 1)

The lighting system according to claim 1, further comprising:
a second lighting unit whose structure is substantially the same with that of the first lighting unit, wherein the second lighting unit is used for receiving the powering rob, and the first lighting unit and the second lighting unit are capable of independently rotating with respect to the powering rod.

### Claim 13 (depends on 12)

The lighting system according to claim 12, wherein when the first lighting unit is at the first position, the first lighting unit is substantially parallel to the housing of the second lighting unit, and when the first lighting unit is at the second position, the first lighting unit faces the second lighting unit at a pre-determined angle being larger than or equal to 5 degrees.

### Claim 14 (depends on 1)

The lighting system according to claim 1, wherein the light source further comprises a first light emitter and a second light emitter, and when the first lighting unit is selectively in the first lighting state and the second lighting state, the first light emitter and the second light emitter selectively radiate light and turns off.

### Claim 15 (depends on 1)

The lighting system according to claim 1, wherein the first lighting state is a first bright state, the second lighting state is a second bright state, and the first bright state and the second bright state can selectively differ with each other in terms of brightness, color, illuminating direction or light emitting position.

### Claim 16 (depends on 1)

The lighting system according to claim 1, wherein a first magnet is disposed at a first point on a relative circumference of the inner ring body, a second magnet is disposed on the outer ring body, when the outer ring body is at the first position, the second magnet faces a second point on the inner ring body, when the outer ring body is at the second position, the second magnet faces a third point on the inner ring body, the first point is located between the second point and the third point, and when the first magnet and the second magnet are opposite to each other, repulsion is generated between the first magnet and the second magnet with the same polarity.

### Claim 17 (depends on 1)

The lighting system according to claim 1, wherein the inner ring body has a recess, the outer ring body has a protrusion, and the recess is used for receiving the protrusion to limit the outer ring body to rotate between the first position and the second position.

### Claim 18 (depends on 17)

The lighting system according to claim 17, wherein a first metal conductor is disposed on one side of the recess for receiving the power, the protrusion has a second metal conductor disposed thereon for coupling the light source, when the outer ring body is at the first position, the first metal conductor and the second metal conductor are electrically connected, and when the outer ring body is not at the first position, the first metal conductor and the second metal conductor are electrically separated.