Illumination device

A technology for lighting devices and diffusers, which is applied to lighting devices, components of lighting devices, cooling/heating devices of lighting devices, etc., and can solve problems such as poor optical performance of lampshades, poor bending resistance of lamp tubes, and thick radiators

Active Publication Date: 2014-09-10
LEDVANCE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned solution has some obvious disadvantages, that is, the holding structure needs to be specially designed, which increases the cost of the retrofit lamp and makes the assembly complicated and laborious
In addition, the bending resistance of the lamp tube made of plastic is poor, and in the case of a long lamp tube, the lamp tube may appear undesired bending
In order to solve this problem, the radiator needs to be designed thicker, which increases the cost of retrofit lamps
In addition, the optical performance of the plastic lampshade is relatively poor. In order to obtain the desired light distribution performance, the plastic lampshade must be designed in a complicated way, which further increases the cost of the retrofit lamp.

Method used

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Embodiment Construction

[0026] In the following detailed description, reference is made to the accompanying drawings which form a part hereof, and in which are shown by way of illustrations specific embodiments in which the invention may be practiced. With respect to the figures, directional terms such as "inner", "outer", "left", "right", etc. are used with reference to the orientation of the figures being described. Since components of embodiments of the present invention may be placed in many different orientations, the terminology of orientation is used for illustration only and not in any limiting sense. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. Therefore, the following detailed description should not be taken in a limiting sense, and the invention is defined by the appended claims.

[0027] figure 1 Shown is an exploded schematic view of the lighting device 100 accordin...

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Abstract

The invention relates to an illumination device (100). The illumination device comprises a lamp tube (1) with two open ends, a light engine (2) arranged in the lamp tube (1), a carrier for carrying the light engine (2), and two end covers (3) for sealing the open ends. The illumination device (100) is characterized by further comprising a diffuser (4), wherein the carrier for carrying the light engine (2) is kept on the diffuser (4), and the diffuser (4) is kept on the inner wall of the lamp tube (1).

Description

technical field [0001] The invention relates to a lighting device, in particular to a retrofit lamp. Background technique [0002] As we all know, LED lighting has irreplaceable advantages, such as energy saving, ultra-low power consumption, close to 100% electro-optical power conversion, the same lighting efficiency can save more than 80% energy than traditional light sources, and its life is longer. In view of the above advantages, more and more people use LEDs as light sources, such as a large number of LED retrofit lamps appearing on the market. This LED retrofit lamp has the outline of a traditional light source such as an incandescent lamp or a lamp tube, so that it can be used as a light source to better adapt to an existing lighting system. [0003] In an existing technical scheme of a retrofit lamp that replaces a traditional lamp tube, the retrofit lamp has a lamp tube made of transparent plastic, and an LED light engine as a light source is arranged inside the la...

Claims

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Application Information

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IPC IPC(8): F21S2/00F21V17/16F21Y101/02
CPCF21S4/008F21Y2101/02F21V17/164F21Y2103/003F21K9/50F21V3/0445F21V3/0472F21V29/22F21K9/17F21V29/70F21V3/049F21K9/275F21K9/60F21K9/66F21S4/28F21V3/0625F21V3/10F21V23/06F21Y2103/10F21Y2115/10
Inventor 张德召刘军莫里茨·恩格尔王明涛
Owner LEDVANCE GMBH
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