US 2013/0170202 A1 · LED ILLUMINATING DEVICE

Abstract

An LED illuminating device includes a base, an LED substrate mounted on the base, at least one LED on the substrate and an envelope fixed on the base. The envelope includes a plurality of transmission regions and a plurality of reflective regions. The lights beams emitted by the LED reaches the envelope. A first portion of the light beams reaching transmission regions can pass therethough. A second portion of the light beams are internally reflected in multiple times by the reflective regions until they finally escape to outside through the transmission regions. The direction of the light beams can reach various locations of each of the transmission regions at various angles.

Claims14

Dependent claims

An LED illuminating device comprising:

a base;
an LED substrate mounted on the base;
at least one LED arranged on the LED substrate;
a driving circuit module accommodated in the base and electrically connected with the at least one LED;
and
an envelope fixed on the base and comprising a plurality of transmission regions and a plurality of reflective regions, the plurality of transmission regions allowing a first portion of light beams emitted by the at least one LED to pass therethrough, the plurality of reflective regions being configured to reflect a second portion of the light beams emitted by the at least one LED and allowing light beams emitted by the at least one LED to reach various locations of the plurality of transmission regions at various angles.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/447,304Filed 16 Apr 2012

Priority

CN 201110453405.730 Dec 2011

Published

4 Jul 2013

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

F21V 3/10
Characterised by materials, surface treatments or coatings: characterised by coatings
F21V 11/14
Using diaphragms containing one or more apertures: with many small apertures
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…
F21Y 2115/10
Light-generating elements of semiconductor light sources: light-emitting diodes [LED]

Led illuminating device

Life of this patent

Led illuminating device

Life of this patent

Abstract

Claims14