# US 12,114,405 B2 · Vehicle interior lighting assembly with flexible LED sheet

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- Number: US 12,114,405 B2
- Document ID: US12114405B2
- Status: Granted
- Kind: B2
- Application number: 18/062,129
- Filed: 2022-12-06
- Published: 2024-06-06
- Granted: 2024-10-08
- Earliest claimed: 2022-12-06
- Assignees: Honda Motor Co., Ltd.
- Applicants: Honda Motor Co., Ltd.
- Inventors: Tomoya Hagihara; Antonio Emilio Sanchez Aguilar
- Web page: https://patentgrep.com/patent/US12114405B2

## CPC

- H05B 45/50: responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- B60Q 3/50: Mounting arrangements (for compartments other than passenger or driving compartments B60Q3/30; specially adapted for specific vehicle types B60Q3/40)
- B60Q 3/60: characterised by optical aspects
- B60Q 3/74: for overall compartment lighting; for overall compartment lighting in combination with specific lighting, e.g. room lamps with reading lamps (general lighting mounted on specific fittings B60Q3/20; general lighting for mass transit vehicles B60Q3/43)
- B60Q 3/76: for spotlighting, e.g. reading lamps (spotlighting on or for specific fittings B60Q3/20; spotlighting in mass transit vehicles B60Q3/44)
- B60Q 3/80: Circuits; Control arrangements (for dashboards B60Q3/16; for mass transit vehicles B60Q3/47)
- F21V 14/04: by movement of reflectors {(in vehicle head lamps F21S41/675)}
- F21V 23/003: {the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array}
- H05B 47/105: in response to determined parameters
- F21Y 2115/10: Light-emitting diodes [LED]
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- 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 vehicle interior lighting assembly includes a housing configured to contain lighting components, a lens through which light may be projected from the housing, and a light source including a flexible sheet including one or more light emitting diodes (LEDs). The flexible sheet includes a first, larger portion disposed at a first orientation at an oblique angle with respect to the lens, and a second, smaller portion disposed at a second orientation that is substantially aligned with the lens. At least one of the one or more LEDs is disposed on the second, smaller portion of the flexible sheet.

## Claims

### Claim 1

A vehicle interior lighting assembly, comprising:
a housing configured to contain lighting components;
a lens through which light may be projected from the housing; and
a light source including a flexible sheet including one or more light emitting diodes (LEDs);
wherein the flexible sheet includes a first, larger portion disposed at a first orientation at an oblique angle with respect to the lens, and a second, smaller portion disposed at a second orientation that is substantially aligned with the lens; and
wherein at least one of the one or more LEDs is disposed on the second, smaller portion of the flexible sheet;
wherein the one or more reflective components are movable to augment light projected from the lighting assembly.

### Claim 2 (depends on 1)

The lighting assembly of claim 1, wherein the second, smaller portion of the flexible sheet has a surface area that is smaller than the surface area of the first, larger portion of the flexible sheet.

### Claim 3 (depends on 2)

The lighting assembly of claim 2, wherein the second, smaller portion of the flexible sheet is a projection extending from the first, larger portion of the flexible sheet.

### Claim 4 (depends on 1)

The lighting assembly of claim 1, wherein the housing extends at an oblique angle with respect to the lens.

### Claim 5 (depends on 1)

The lighting assembly of claim 1, further including one or more reflective components configured to reflect additional light from the LEDs through the lens.

### Claim 6

A vehicle interior lighting system, comprising:
a first vehicle interior lighting assembly including:
a lens through which light may be projected; and
a light source including a flexible sheet including one or more light emitting diodes (LEDs) arranged to project light through the lens;
wherein the flexible sheet includes a first, larger portion disposed at a first orientation at an oblique angle with respect to the lens, and a second, smaller portion disposed at a second orientation that is substantially aligned with the lens; and
wherein at least one of the one or more LEDs is disposed on the second, smaller portion of the flexible sheet; and
a controller including a device processor and a non-transitory computer readable medium including instructions executable by the processor to control operation of the lighting assembly.

### Claim 7 (depends on 6)

The system of claim 6, further including a second vehicle interior lighting assembly including the same general components as the first vehicle interior lighting assembly, including a lens and a flexible sheet including one or more LEDs;
wherein the computer readable medium of the controller includes instructions, executable by the processor, to control the first lighting assembly based on output of the second lighting assembly in real time.

### Claim 8 (depends on 7)

The system of claim 7, wherein the computer readable medium includes instructions for receiving lighting performance information from the second lighting assembly and controlling operation of the first lighting assembly based on the performance information regarding the second lighting assembly.

### Claim 9 (depends on 7)

The system of claim 7, further including a sensor separate from the second lighting assembly configured to detect the output of the second lighting assembly;
wherein the computer readable medium includes instructions for receiving lighting performance information regarding the second lighting assembly from the sensor and controlling operation of the first lighting assembly based on the performance information regarding the second lighting assembly.

### Claim 10 (depends on 6)

The system of claim 6, wherein the first lighting assembly includes one or more reflective components configured to reflect additional light from the LEDs through the lens.

### Claim 11 (depends on 10)

The system of claim 10, wherein the computer readable medium includes instructions, executable by the processor, for controlling movement of the one or more reflective components to augment output of the first lighting assembly.

### Claim 12 (depends on 6)

The system of claim 6, further including a reflective component separate from the first lighting assembly configured to reflect light from the first lighting assembly and redirect the light to a predetermined target area.

### Claim 13 (depends on 6)

The system of claim 6, wherein the computer readable medium includes instructions, executable by the processor, for controlling movement of the reflective component to augment output of the first lighting assembly.
