# US 2014/0153236 A1 · Light emitting diode bulb

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- Number: US 2014/0153236 A1
- Document ID: US20140153236A1
- Status: Published application
- Kind: A1
- Application number: 13/966,243
- Filed: 2013-08-13
- Published: 2014-06-05
- Earliest claimed: 2012-12-04
- Assignees: Advanced Optoelectronic Technology, Inc.
- Applicants: Advanced Optoelectronic Technology, Inc.
- Inventors: Lung-Hsin CHEN; Pin-Chuan CHEN; Wen-Liang TSENG
- Web page: https://patentgrep.com/patent/US20140153236A1

## CPC

- F21K 9/23: Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
- F21V 3/00: Globes; Bowls; Cover glasses (with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506)
- F21Y 2107/40: on the sides of polyhedrons, e.g. cubes or pyramids
- 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

A light emitting diode (LED) bulb includes a connecting body having a first end and a second end opposite to the first end, a mounting base located at a second end of the connecting body and a plurality of LED units mounted on the mounting base. The mounting base has a top face distant from the second end of the connecting body and an inclined lateral face located between the top face of the mounting base and the second end of the connecting body. The inclined lateral face of the mounting base extends downwardly and inwardly from a periphery of the top face of the mounting base towards the second end of the connecting body. The plurality of LED units mounted on the first top face and the inclined lateral face of the mounting base, respectively.

## Claims

### Claim 1

A light emitting diode (LED) bulb comprising:
a connecting body having a first end and a second end opposite to the first end;
a mounting base located at the second end of the connecting body, the mounting base comprising a top face distant from the second end of the connecting body and an inclined lateral face located between the top face of the mounting base and the second end of the connecting body, and the inclined lateral face of the mounting base extending downwardly and inwardly from a periphery of the top face of the mounting base towards the second end of the connecting body; and
a plurality of LED units mounted on the first top face and the inclined lateral face of the mounting base, respectively.

### Claim 2 (depends on 1)

The LED bulb of claim 1, further comprising a supporting base located between the mounting base and the second end of the connecting body, wherein the supporting base interconnects the mounting base and the second end of the connecting body.

### Claim 3 (depends on 2)

The LED bulb of claim 2, wherein the supporting base comprises an inclined lateral face, and the inclined lateral face of the supporting base extends upwardly and inwardly from a periphery of the second end of the connecting body towards a bottom end of the mounting base.

### Claim 4 (depends on 3)

The LED bulb of claim 3, wherein the supporting base interconnects end-to-end with the mounting base.

### Claim 5 (depends on 4)

The LED bulb of claim 4, wherein the bottom end of the mounting base has a same size as that of the top end of the supporting base.

### Claim 6 (depends on 5)

The LED bulb of claim 5, wherein the supporting base and the mounting base are truncated-cone shaped.

### Claim 7 (depends on 3)

The LED bulb of claim 3, further comprising a reflective layer covering the inclined lateral face of the supporting base.

### Claim 8 (depends on 3)

The LED bulb of claim 3, wherein the mounting base defines a plurality of receiving recesses in the top face and the inclined lateral face thereof for receiving the LED units therein.

### Claim 9 (depends on 8)

The LED bulb of claim 8, wherein each receiving recess is rectangular and each LED unit is received in a corresponding receiving recess, and a light emitting surface of each LED unit is coplanar with a corresponding top face or inclined lateral face of the mounting base.

### Claim 10 (depends on 3)

The LED bulb of claim 3, wherein the connecting body is a hollow tube and defines a passage to receive a driving circuit module therein.

### Claim 11 (depends on 10)

The LED bulb of claim 10, wherein the mounting base comprises a first inner cavity, and the supporting base comprises a second inner cavity to communicate the first inner cavity of the mounting base with the passage of the connecting body.

### Claim 12 (depends on 11)

The LED bulb of claim 11, further comprising a first through hole and a second through hole, wherein the first through hole extends through a bottom portion of the mounting base and a top portion of the supporting base to communicate the first inner cavity of the mounting base with the second inner cavity of the supporting base, and the second through hole extends through a bottom portion of the supporting base to communicate the second inner cavity of the supporting base with the passage of the connecting body.

### Claim 13 (depends on 11)

The LED bulb of claim 11, wherein a low portion of the connecting body defines a plurality of air outlets therein, and the plurality of air outlets communicate the passage of the connecting body with the outside.

### Claim 14 (depends on 13)

The LED bulb of claim 13, further comprising a lampshade connected to a bottom end of the supporting base, wherein the lampshade defines an inner space for receiving the supporting base and the mounting base therein.

### Claim 15 (depends on 14)

The LED bulb of claim 14, wherein a plurality of air inlets are defined near a joint of the mounting base and the supporting base in the lampshade, and the plurality of air outlets communicate with the first inner cavity of the mounting base and the second inner cavity of the supporting base.

### Claim 16 (depends on 14)

The LED bulb of claim 14, wherein the bottom end of the supporting base has a size larger than that of the second end of the connecting body.

### Claim 17 (depends on 16)

The LED bulb of claim 16, wherein an area of the bottom end of the supporting base exposed out of the lampshade defines a plurality of air outlets, and the plurality of air outlets communicate the second inner cavity of the supporting base with the outside.

### Claim 18 (depends on 14)

The LED bulb of claim 14, wherein a bottom end of the supporting base defines an annular groove near a joint of the supporting base and the second end of the connecting body, and the lampshade is fixed in the annular groove of the supporting base.

### Claim 19 (depends on 5)

The LED bulb of claim 5, wherein the supporting base and the mounting base are truncated-pyramid shaped, and the inclined lateral face of the supporting base intersects with the inclined lateral face of the mounting base at a polygon.

### Claim 20 (depends on 19)

The LED bulb of claim 19, wherein a light emitting angle of each LED unit is defined as β, and an angle a between the inclined lateral face of the supporting base and the inclined lateral face of the mounting base is in a range from β/2 to 90+β/2 degrees.