# US 2017/0284607 A1 · Omnidirectional led lamp

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- Number: US 2017/0284607 A1
- Document ID: US20170284607A1
- Status: Published application
- Kind: A1
- Application number: 15/473,235
- Filed: 2017-03-29
- Published: 2017-10-05
- Earliest claimed: 2016-03-30
- Inventors: Yung Pun CHENG
- Web page: https://patentgrep.com/patent/US20170284607A1

## CPC

- F21K 9/232: specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
- F21K 9/235: Details of bases or caps, i.e. the parts that connect the light source to a fitting; Arrangement of components within bases or caps (F21K9/238 takes precedence)
- F21K 9/237: Details of housings or cases, i.e. the parts between the light-generating element and the bases; Arrangement of components within housings or cases (F21K9/238 takes precedence)
- F21K 9/238: Arrangement or mounting of circuit elements integrated in the light source
- F21V 3/062: {the material being plastics}
- F21V 17/101: {permanently, e.g. welding, gluing or riveting}
- F21V 19/004: {by deformation of parts or snap action mountings, e.g. using clips}
- F21V 23/006: {the substrate being distinct from the light source holder}
- F21V 23/06: the elements being coupling devices {, e.g. connectors}
- F21V 29/83: the elements having apertures, ducts or channels, e.g. heat radiation holes
- 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

An omnidirectional LED lamp comprises a light transmission bulb shell, several curved LED modules, a circuit board, and an interface board that connects to LED modules and lamp base. The LED chips are arranged and mounted on the LED module boards so that a uniform light beam with more than a 320 degree wide angle and high rear light flux can be achieved.

## Claims

### Claim 1

An omnidirectional LED light bulb comprising a lamp base 1, an electronic driver board 3, an interface board 4, at least 3 or more LED modules 7, a lower plastic lamp shell 5 and an upper plastic lamp shell 8, wherein the interface board 4 has slots so that the LED module 7 can be fitted into the slots, wherein the interface board 4 has a slot for connecting the electronic driver board 3 on it, the interface board 4 has electrical conduction traces build on its surface so that the DC electric power which is generated from the electronic driver board 3 can be supply to the LED modules 7 via the interface board 4.

### Claim 2 (depends on 1)

The omnidirectional LED light bulb according to claim 1, wherein the upper and lower plastic lamp shells are joined together by glue or ultrasonic weld.

### Claim 3 (depends on 1)

The omnidirectional LED light bulb according to claim 1, wherein the LED electronic driver circuit is integrated in the interface board 4.

### Claim 4 (depends on 1)

The omnidirectional LED light bulb according to claim 1, wherein the lower plastic lamp shell 5 has ventilation holes near the lamp base 1, and the lamp case 1 is a screw base.

### Claim 5 (depends on 1)

The omnidirectional LED light bulb according to claim 1, wherein the lower plastic lamp shell 5 has no ventilation holes for bulbs which has 5 watt or lower electrical consumption power.