# US 12,000,576 B1 · Lighting apparatus

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- Number: US 12,000,576 B1
- Document ID: US12000576B1
- Status: Granted
- Kind: B1
- Application number: 18/131,862
- Filed: 2023-04-06
- Granted: 2024-06-04
- Earliest claimed: 2023-04-06
- Assignees: Leedarson Lighting Co., Ltd.
- Applicants: Leedarson Lighting Co.,Ltd.
- Inventors: Peng Lee; Tzu-Hua Wang; Ping Yang; Lin-Hua Wang
- Web page: https://patentgrep.com/patent/US12000576B1

## CPC

- F21V 23/04: the elements being switches (safety devices F21V25/00)
- F21S 8/026: {intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling}
- F21V 23/005: {the substrate is supporting also the light source}
- 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 9/40: with provision for controlling spectral properties, e.g. colour, or intensity
- F21Y 2113/13: comprising an assembly of point-like light sources
- 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 apparatus includes a first light source, a second light source, a driver circuit, a main housing and a switch trigger. The switch base is coupled to the driver circuit. The house opening is disposed on a back side of the main housing. The back side of light source plate faces to the back side of the main housing. The switch trigger having a first end coupled to the switch base. The switch trigger extends through a plate opening of the light source plate to pass through the house opening to be operated by a user from the back side of the main housing. The switch trigger is operated to change a setting status of the switch base so as to change a light parameter for the driver circuit to control the first light source and the second light source.

## Claims

### Claim 1

A lighting apparatus comprising:
a first light source mounted on a first area of a light source plate;
a second light source mounted on a second area of the same light source plate;
a driver circuit mounted on a driver area of the same light source plate, wherein a switch base is mounted on the same light source plate, the switch base is coupled to the driver circuit, wherein the first area, the second area and the driver area are on a front side of the light source plate;
a main housing for enclosing the light source plate, wherein a house opening is disposed on a back side of the main housing, wherein a back side of light source plate faces to the back side of the main housing; and
a switch trigger having a first end coupled to the switch base, wherein the switch trigger extends through a plate opening of the light source plate to pass through the house opening to be operated by a user from the back side of the main housing, wherein the switch trigger is operated to change a setting status of the switch base so as to change a light parameter for the driver circuit to control the first light source and the second light source, wherein the main housing has a lateral opening from a lateral wall of the main housing for the switch trigger to pass though to be operated.

### Claim 2 (depends on 1)

The lighting apparatus of claim 1, wherein the switch base is a signal converter for converting the setting status as a switch signal provided to the driver circuit to determine how to drive the first light source and the second light source.

### Claim 3 (depends on 1)

The lighting apparatus of claim 1, wherein the switch trigger contains a switch board and a trigger lever, wherein the switch board is placed above the front side of the light source plate, wherein the switch board is coupled to the switch base, wherein the trigger lever is extended from the switch board passing through the plate hole toward the back side of the main housing.

### Claim 4 (depends on 1)

The lighting apparatus of claim 1, wherein the first light source emits a first light, wherein the second light source emits a second light, wherein the first light and the second light have different color temperatures.

### Claim 5 (depends on 4)

The lighting apparatus of claim 4, wherein the first light source and the second light source respectively have multiple LED modules, wherein only a portion of the LED modules of the first light source and the second light source are enabled while other LED modules of the first light source and the second light source are disabled according to the setting status, in which even when the lighting apparatus is turned on, the other LED modules that are disabled do not receive electricity from the driver circuit.

### Claim 6 (depends on 5)

The lighting apparatus of claim 5, wherein the switch base enables a physical connection of the portion of the LED modules to the driver circuit while physically disconnecting the other LED modules from the driver circuit according to the setting status of the switch base.

### Claim 7 (depends on 6)

The lighting apparatus of claim 6, wherein the driver circuit has a first number of power wires, wherein the LED modules of the first light source and the second light source have a second number of LED modules, wherein each LED module has a connecting wire, wherein the switch base is a routing device for selectively connecting a portion of the connecting wires to the power wires, wherein there are a second number of the connecting wires corresponding to the second number of LED modules, wherein the first number is smaller than the second number, wherein some connecting wires of the LED modules are not physically connected to the power wires when their associated LED modules are disabled.

### Claim 8 (depends on 1)

The lighting apparatus of claim 1, wherein the main housing is a downlight housing, wherein the main housing has a surface rim for covering a cavity opening of an installation cavity, wherein a major part of the main housing is inserted into the installation cavity, wherein the lateral wall is hidden by the surface rim in the installation cavity.

### Claim 9 (depends on 8)

The lighting apparatus of claim 8, wherein the surface rim has a first side and a second side, wherein the first side of the surface rim faces to the installation cavity, wherein the second side of the surface rim faces to a light exit direction of a light opening defined by the surface rim, wherein a first switch device is placed on the first side to change the setting status of the switch base, wherein the first switch device is concealed by the surface rim.

### Claim 10 (depends on 9)

The lighting apparatus of claim 9, wherein a second switch device is disposed on the second side of the surface rim to be operated to change the setting status of the switch base.

### Claim 11 (depends on 8)

The lighting apparatus of claim 8, wherein the surface rim is rotatable with respect to a lateral wall of the downlight housing to change the setting status of the switch base.

### Claim 12 (depends on 1)

The lighting apparatus of claim 1, wherein an elastic pad is placed to cover the housing opening of the main housing, wherein the elastic pad is configured to be pressed by a user to indirectly engage the switch trigger to change the setting status of the switch base.

### Claim 13 (depends on 1)

The lighting apparatus of claim 1, wherein the first light source and the second light source contain multiple LED modules, each module is packaged in a cartridge, wherein the cartridge is detachably inserted to the main housing.

### Claim 14 (depends on 1)

The lighting apparatus of claim 1, further comprising a third light source and a separator, wherein the separator separates the first light source and the second light source from the third light source, wherein the third light source emits a third light from a lateral side of the main housing.

### Claim 15 (depends on 14)

The lighting apparatus of claim 14, wherein the third light source is placed on a third area of the front side of the light source plate, wherein the third area is in a peripheral area of the light source plate.

### Claim 16 (depends on 1)

The lighting apparatus of claim 1, wherein a touch device is placed on an exterior surface of the main housing for receiving a touch operation to change the setting status of the switch base.

### Claim 17 (depends on 1)

The lighting apparatus of claim 1, wherein a plug is inserted from the house opening to a different position of the switch base to change the setting status of the switch base.

### Claim 18 (depends on 17)

The lighting apparatus of claim 17, wherein the switch plug has two arms, wherein the switch plug has two directions to be inserted into the housing opening to correspond to two different setting statuses of the switch base.