# US 11,906,115 B2 · LED tube lamp

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- Number: US 11,906,115 B2
- Document ID: US11906115B2
- Status: Granted
- Kind: B2
- Application number: 17/076,831
- Filed: 2020-10-22
- Published: 2021-03-11
- Granted: 2024-02-20
- Earliest claimed: 2014-12-05
- Assignees: Jiaxing Super Lighting Electric Appliance Co., Ltd
- Applicants: Jiaxing Super Lighting Electric Appliance Co., Ltd
- Inventors: Tao Jiang; Li-Qin Li
- Web page: https://patentgrep.com/patent/US11906115B2

## CPC

- F21K 9/272: Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts (F21K9/278 takes precedence)
- F21K 9/27: Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
- F21K 9/275: Details of bases or housings, i.e. the parts between the light-generating element and the end caps; Arrangement of components within bases or housings (F21K9/278 takes precedence)
- F21K 9/278: Arrangement or mounting of circuit elements integrated in the light source
- F21K 9/68: Details of reflectors forming part of the light source
- F21V 3/02: characterised by the shape
- F21V 3/061: {the material being glass}
- F21V 3/0615: {the material diffusing light, e.g. translucent glass}
- F21V 7/005: {with an elongated shape to cooperate with linear light sources}
- F21V 15/015: Devices for covering joints between adjacent lighting devices; End coverings
- F21V 17/101: {permanently, e.g. welding, gluing or riveting}
- F21V 19/009: {the support means engaging the vessel of the source}
- F21V 23/00: Arrangement of electric circuit elements in or on lighting devices {(characterised by cooling arrangements F21V29/508)}
- F21V 23/02: the elements being transformers, impedances {or power supply units, e.g. a transformer with a rectifier}
- F21V 23/023: {Power supplies in a casing (F21V23/003 takes precedence)}
- F21V 25/04: breaking the electric circuit
- F21V 29/83: the elements having apertures, ducts or channels, e.g. heat radiation holes
- F21V 31/005: {Sealing arrangements therefor}
- F21V 3/10: characterised by coatings
- F21V 7/00: Reflectors for light sources (characterised by cooling arrangements F21V29/505)
- F21Y 2103/10: comprising a linear array of point-like light-generating elements
- F21Y 2115/10: Light-emitting diodes [LED]
- F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- 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

An LED tube lamp includes a glass lamp tube, two end caps, an LED light strip, a power supply, and a diffusion film. The glass lamp tube includes a main body region and two rear end regions, each of the two rear end regions coupled to a respective end of the main body region and each of the two end caps coupled to a respective rear end region. A length of the light strip is longer than the length of a main body region of the glass lamp tube. Each of the two end caps is coupled to a respective end of the glass lamp tube by a adhesive. The LED light strip is attached to an inner circumferential surface of the glass lamp tube with a plurality of LED light sources mounted on the LED light strip. The diffusion film is disposed on an out surface of the glass lamp tube.

## Claims

### Claim 1

An LED tube lamp, comprising:
a glass lamp tube comprising a main body region and two rear end regions, each of the two rear end regions coupled to a respective end of the main body region;
two end caps, each of the two end caps coupled to a respective rear end region, each of the end caps comprising a lateral wall and an end wall, wherein the lateral wall is substantially coaxial with the glass lamp tube and sleeving with the respective rear end region, the end wall is substantially perpendicular to the axial direction of the glass lamp tube;
an adhesive disposed between each of the lateral wall and each of the rear end regions;
an LED light strip attached to an inner circumferential surface of the glass lamp tube with a plurality of LED light sources mounted on the LED light strip;
a power supply comprising a circuit board electrically connecting to the LED light strip, the circuit board comprises a first surface and a second surface opposite to and substantially parallel to the first surface, and the first surface and the second surface of the circuit board are substantially parallel with the axial direction of the lateral wall; and
a diffusion film covering on an outer surface of the glass lamp tube,
wherein a length of the LED light strip is longer than a length of the main body region of the glass lamp tube,
wherein each of the end walls comprises an insulating end wall, two conductive pins and at least one opening, the two conductive pins and the opening are arranged on the insulating end wall.

### Claim 2 (depends on 1)

The LED tube lamp of claim 1, wherein the LED light strip further comprises a mounting region and a connecting region, the plurality of LED light sources are mounted on the mounting region, the connecting region electrically connecting the plurality of LED light sources to the power supply, further wherein the connecting region, one of the rear end regions, the adhesive and one of the lateral wall are stacked sequentially in a radial direction of the glass lamp tube.

### Claim 3 (depends on 2)

The LED tube lamp of claim 2, wherein the LED tube lamp further comprises a reflective film covering a portion of the inner circumferential surface of the glass lamp tube.

### Claim 4 (depends on 3)

The LED tube lamp of claim 3, wherein the reflective film are disposed on two opposite sides of the LED light sources.

### Claim 5 (depends on 4)

The LED tube lamp of claim 4, wherein the LED light strip and the reflective film are stacked on each other in the radial direction of the glass lamp tube and are fixed on the inner circumferential surface of the glass lamp tube.

### Claim 6 (depends on 5)

The LED tube lamp of claim 5, wherein at least one of the two end caps comprises a socket, the circuit board of the power supply are inserted into the socket.

### Claim 7 (depends on 5)

The LED tube lamp of claim 5, wherein an outer diameter of each of the lateral wall is substantially the same as the outer diameter of the main body region.

### Claim 8 (depends on 7)

The LED tube lamp of claim 7, wherein the outer diameter of each of the two rear end regions is less than the outer diameter of the main body region.

### Claim 9 (depends on 5)

The LED tube lamp of claim 5, wherein the mounting region is attached to the inner circumferential surface of the main body and the connecting region is detached from the inner circumferential surface of the glass lamp tube to form a freely extending end portion.

### Claim 10 (depends on 9)

The LED tube lamp of claim 9, wherein the freely extending end portion of the LED light strip is directly soldered to the circuit board of the power supply.

### Claim 11

An LED tube lamp, comprising:
a glass lamp tube comprising a main body region and two rear end regions, each of the two rear end regions coupled to a respective end of the main body region;
two end caps, each of the two end caps coupled to a respective rear end region, each of the end caps comprising a lateral wall and an end wall, wherein the lateral wall is substantially coaxial with the glass lamp tube and sleeving with the respective rear end region, the end wall is substantially perpendicular to the axial direction of the glass lamp tube;
an adhesive disposed between each of the lateral wall and each of the rear end regions;
an LED light strip attached to an inner circumferential surface of the glass lamp tube with a plurality of LED light sources mounted on the LED light strip;
a power supply comprising a circuit board electrically connecting to the LED light strip, the circuit board comprises a first surface and a second surface opposite to and substantially parallel to the first surface, and the first surface and the second surface of the circuit board are substantially parallel with the axial direction of the lateral wall; and
a diffusion film covering on an outer surface of the glass lamp tube,
wherein a length of the LED light strip is longer than a length of the main body region of the glass lamp tube,
wherein each of the end walls comprises an insulating end wall, two conductive pins and at least one opening, the two conductive pins and the opening are arranged on the insulating end wall.

### Claim 12 (depends on 11)

The LED tube lamp of claim 11, wherein the LED light strip further comprises a mounting region and a connecting region, the plurality of LED light sources are mounted on the mounting region, the connecting region electrically connecting the plurality of LED light sources to the power supply, further wherein the connecting region, one of the rear end regions, the adhesive and one of the lateral wall are stacked sequentially in a radial direction of the glass lamp tube.

### Claim 13 (depends on 12)

The LED tube lamp of claim 12, wherein the LED tube lamp further comprises a reflective film covering a portion of the inner circumferential surface of the glass lamp tube.

### Claim 14 (depends on 13)

The LED tube lamp of claim 13, wherein the reflective film are disposed on two opposite sides of the LED light sources.

### Claim 15 (depends on 14)

The LED tube lamp of claim 14, wherein the LED light strip and the reflective film are stacked on each other in the radial direction of the glass lamp tube and are fixed on the inner circumferential surface of the glass lamp tube.

### Claim 16 (depends on 15)

The LED tube lamp of claim 15, wherein a portion of the inner circumferential surface of the glass lamp tube not covered by the reflective film is covered by the diffusion layer.

### Claim 17 (depends on 16)

The LED tube lamp of claim 16, wherein at least one of the two end caps comprises a socket, the circuit board of the power supply are inserted into the socket.

### Claim 18 (depends on 16)

The LED tube lamp of claim 16, wherein an outer diameter of each of the lateral wall is substantially the same as the outer diameter of the main body region.

### Claim 19 (depends on 18)

The LED tube lamp of claim 18, wherein the outer diameter of each of the two rear end regions is less than the outer diameter of the main body region.

### Claim 20 (depends on 16)

The LED tube lamp of claim 16, wherein the mounting region is attached to the inner circumferential surface of the main body and the connecting region is detached from the inner circumferential surface of the glass lamp tube to form a freely extending end portion.

### Claim 21 (depends on 20)

The LED tube lamp of claim 20, wherein the freely extending end portion of the LED light strip is directly soldered to the circuit board of the power supply.