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Light-emitting module and lighting device including the light-emitting module

A technology for light-emitting modules and light sources, which is applied to lighting devices, components of lighting devices, semiconductor devices of light-emitting elements, etc., can solve the problems of difficult light spots and limiting the brightness and light output of light-emitting modules.

Inactive Publication Date: 2017-05-10
OSRAM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the light-emitting module has only one lens of this fully axisymmetric design, a uniform and symmetrical batwing-shaped spot can be achieved through a single lens, so this lens limits the brightness or light output of the light-emitting module to a certain extent
When multiple light sources equipped with such lenses are installed on the circuit board in order to improve the brightness of the light-emitting module, it is difficult to obtain a uniform light spot

Method used

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  • Light-emitting module and lighting device including the light-emitting module
  • Light-emitting module and lighting device including the light-emitting module
  • Light-emitting module and lighting device including the light-emitting module

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Embodiment Construction

[0023] 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 "top", "bottom", "inner", "outer", 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.

[0024] It should be understood that, unless otherwise specified, features of different e...

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Abstract

The invention relates to a light emitting module (10), which comprises a circuit board (1), at least three light sources (2) and at least three optical devices (3), wherein the light source (2) are arranged at one side of the circuit board (1), and each optical device (3) is respectively matched with each light source (2). The light emitting module is characterized in that the three optical devices (3) are used for respectively generating sub-spots, and at least parts of sub-spots are overlapped to form uniform spots. The invention also relates to an illumination device with the light emitting module.

Description

technical field [0001] The invention relates to a light emitting module and a lighting device comprising the light emitting module. Background technique [0002] LED lighting modules have the advantages of energy saving and high efficiency, so they occupy a dominant position in today's lighting field. With the development of lighting technology, retrofit lamps using LEDs as light sources have gradually replaced fluorescent lamps and are widely used in various occasions. In an LED lighting module used as a backlight, for example, each LED light source is equipped with an independent lens for realizing a predetermined light distribution pattern, such a lens is, for example, a widely used batwing lens. In the prior art, such a lens is substantially axisymmetrically designed, that is to say, both the inner surface of the lens for receiving incident light and the outer surface of the lens as an exit surface have symmetrical contours with respect to the central axis. [0003] Wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21K9/20F21V5/04F21Y115/10F21K9/69
Inventor 张新建冯耀军明玉生何源源
Owner OSRAM GMBH