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Illumination device

A lighting device and lampshade technology, which is applied to lighting devices, components of lighting devices, cooling/heating devices of lighting devices, etc., can solve the problems of uncomfortable feeling of human eyes, small emission angle, high brightness, etc., and achieve the solution of glare , soft light, less light energy loss effect

Inactive Publication Date: 2010-10-06
FU ZHUN PRECISION IND SHENZHEN +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the light-emitting diode is a point light source, its output angle is small, the lighting area is relatively concentrated, and the brightness is high, it is easy to produce glare, which makes the human eye feel uncomfortable

Method used

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Embodiment Construction

[0018] Figure 1 to Figure 2 It is a schematic diagram of a lighting device 10 according to a preferred embodiment of the present invention. The lighting device 10 includes a cylindrical lampshade 11 , a light emitting diode 12 , a light path converting device 13 and a light reflecting device 14 .

[0019] The optical path conversion device 13 includes a protrusion 130 and a paraboloid 132. The protrusion 130 is integrally extended from the center of the axial end 111 of the lampshade 11 to the inside of the lampshade 11 in the axial direction. The paraboloid 132 protrudes from the center of the protrusion 130 to Concavity is formed in riser 130, and the symmetry axis of paraboloid 132 is on the same straight line as the central axis of lampshade 11, and the opening 131 of paraboloid 132 is towards the axial other end 112 of lampshade 11, and light-emitting diode 12 is positioned at the focal point of paraboloid 132 and faces paraboloid 132.

[0020] The light reflection devi...

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Abstract

The invention discloses an illumination device, which comprises a light source and a lampshade, wherein the light source is arranged in the lampshade; the lampshade is provided with an emergent window; and light rays emitted from the light source are emitted from the emergent window. The illumination device also comprises a light path conversion device and a light reflection device which are arranged in the lampshade, wherein the light path conversion device converts the light rays emitted from the light source into parallel light and emits the parallel light to the light reflection device; and the light reflection device reflects the parallel light and emits the reflected light out of the lampshade from the emergent window. Compared with the prior art, the illumination device of the invention adopts the light path conversion device and the light reflection device to change light paths of the light rays emitted from the light source to convert the light rays emitted from the light source into a surface light source consisting of the parallel light; the light rays emitted from the illumination device of the invention are soft so as to effectively solve the problem of glare and make comfortable eyes of users; and in a light path conversion process, light energy loss is relatively less and the utilization rate of the light source is relatively higher.

Description

technical field [0001] The invention relates to an illuminating device, especially an illuminating device with a light emitting diode. Background technique [0002] Since light emitting diodes (Light Emitting Diodes, LEDs) have many characteristics such as environmental protection, high brightness, power saving, and long service life, light emitting diodes are gradually becoming a main lighting source. However, the light-emitting diode is a point light source with a small emission angle, a relatively concentrated lighting area, and high brightness, which is prone to glare and makes human eyes feel uncomfortable. Contents of the invention [0003] In view of this, it is necessary to provide a lighting device that reduces glare. [0004] A lighting device includes a light source and a lampshade. The light source is arranged in the lampshade. The lampshade is provided with a light outlet window. The light emitted by the light source is emitted from the light outlet window. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V3/02F21V13/04F21V7/04F21V5/04F21V29/00H01L33/00H01L23/427F21Y101/02
CPCH01L33/60F21Y2101/02F21V29/20F21V29/004F21V7/0025F21V14/04F21V7/06F21V7/05F21V13/04F21V7/0008F21Y2115/10
Inventor 张家寿杨林
Owner FU ZHUN PRECISION IND SHENZHEN
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