US 8,710,721 B1 · Light emitting device

Abstract

A light emitting device includes a light-emitting diode (LED) light source module, a heat-dissipating unit and a phosphor-converted cover. The heat-dissipating unit is disposed below the LED light source module. The phosphor-converted cover covers the LED light source module. The phosphor-converted cover has an accommodating space, at least one air channel and a first air hole. The LED light source module is located in the accommodating space, and the first air hole is located above the LED light source module and connected to the air channel. An outside fluid passes through the accommodating space via the air channel to discharge heat generated by the LED light source module to outside via the first air hole. An aperture of the first air hole is between 0.01 millimeters and 1 millimeter.

Claims12

Dependent claims

A light emitting device, comprising:

a light-emitting diode (LED) light source module;
a heat-dissipating unit disposed below the LED light source module;
and
a phosphor-converted cover covering the LED light source module, the phosphor-converted cover has an accommodating space, at least one air channel and a first air hole, the LED light source module is located in the accommodating space, and the first air hole is located above the LED light source module and connected to the air channel, wherein an aperture of the first air hole is between 0.01 millimeters and 1 millimeter.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

13/773,648Filed 22 Feb 2013

Priority

TW 101224088 U12 Dec 2012

Granted

29 Apr 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

F21V 29/83
Characterised by passive heat-dissipating elements, e.g. heat-sinks: the elements having apertures, ducts or channels, e.g. heat radiation holes
F21K 9/64
Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction: using wavelength…
F21K 9/232
Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with…
F21V 29/506
Characterised by the adaptation for cooling of specific components: of globes, bowls or cover glasses

Light emitting device

Life of this patent

Light emitting device

Life of this patent

Abstract

Claims12