Omnidirectional lighting device

A lighting device, total internal reflection technology, applied in the direction of lighting devices, lighting device components, lighting and heating equipment, etc., can solve the problems of brightness and structure limitations, light source cannot be freely replaced, high driving voltage, etc., and achieve simple structure , good illuminance and light intensity distribution, low cost effect

Inactive Publication Date: 2012-09-26
OSRAM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this lighting device, due to the need to use multiple LED light sources, it requires a high driving voltage, and its cost, service life and safety factor are difficult to control
[0003] In another solution, in order to achieve omnidirectional lighting, a specially designed lens with a complex structure is used. However, the light source in this lighting device cannot be replaced freely, and its brightness and structure are limited, and it cannot even realize real lighting. 360-degree lighting
In addition, this type of lighting device is also difficult to achieve uniform color distribution

Method used

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Examples

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Embodiment Construction

[0020] figure 1 is a schematic diagram of the light pipe 2 of the omnidirectional lighting device according to the present invention. It can be seen from the figure that the light guide has a light incident surface 3, a light guide channel 4 and two light exit surfaces 5, wherein, viewed in the longitudinal direction of the light guide 2, the light incident surface 3 is arranged on the side of the light guide 2. On the lower surface at the middle position, the light exiting surfaces 5 are respectively arranged on the two end surfaces of the light guide pipe 2 . A light source not shown is arranged below the light guide 2, the optical axis X of the light source passes through the light guide 2 transversely to the longitudinal direction of the light guide 2, and the light guide parts on both sides of the optical axis X 2a and 2b are symmetrical with respect to this optical axis X.

[0021] In addition, a V-shaped groove is formed on the upper surface of each light pipe 2, and ...

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Abstract

The invention relates to an omnidirectional lighting device, which comprises a lamp housing (1), a light source arranged in the lamp housing (1), and besides, at least one light pipe (2) arranged in the lamp housing (1). Light from the light source enters into the light pipe (2) and shines out via the lamp housing (1) in 360-degree directions after at least one-time total inner reflection through the light pipe (2). With the above structure, the omnidirectional lighting device truly realizes the omnidirectional lighting, and has high optical efficiency and good uniformity in terms of color mixing and color distribution.

Description

technical field [0001] The invention relates to an omnidirectional lighting device. Background technique [0002] In today's lighting devices, LED light sources are widely used. However, due to the specific structure of the LED light source and the lens used in conjunction with it, a single LED light source cannot achieve 360-degree omnidirectional illumination. Of course, in order to realize omnidirectional lighting in the lighting device using LED light sources, multiple groups of LED light sources and lenses can also be combined together to realize omnidirectional lighting. However, in this lighting device, since multiple LED light sources need to be used, it requires a relatively high driving voltage, and its cost, service life and safety factor are difficult to control. [0003] In another solution, in order to achieve omnidirectional lighting, a specially designed lens with a complex structure is used. However, the light source in this lighting device cannot be repla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V8/00F21V7/00
CPCG02B6/0096F21V3/00F21K9/135F21K9/52F21Y2101/02G02B6/0001F21K9/232F21K9/61F21Y2115/10
Inventor 林晶卢卡·博尔汀曾军华梁振健
Owner OSRAM GMBH
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