Unlock instant, AI-driven research and patent intelligence for your innovation.

Light-emitting diode (LED) lighting device

A technology of LED lighting and remote phosphors, applied in lighting devices, components of lighting devices, lighting and heating equipment, etc., can solve problems such as reducing phosphor conversion efficiency, sacrificing efficiency, and generating heat

Inactive Publication Date: 2014-03-26
OSRAM GMBH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. Due to the high concentration of phosphor, the remote phosphor structure appears yellowish, which is undesirable for many applications
In some applications, the remote phosphor structure is hidden behind a translucent housing, but this sacrifices efficiency
[0007] 3. The conversion process in the remote phosphor structure leads to intrinsic loss, which generates heat and reduces the conversion efficiency of the phosphor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Light-emitting diode (LED) lighting device
  • Light-emitting diode (LED) lighting device
  • Light-emitting diode (LED) lighting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] 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 "upper", "lower", "inner", "outer", "circumferential", "longitudinal", 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.

[0029] figure 2 A schematic diagram according to t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a light-emitting diode (LED) lighting device which comprises an LED light engine (1) and a remote phosphor structure (2). The remote phosphor structure (2) is provided with a first emergent surface (21) and an incident plane (22). The remote phosphor structure (2) is further provided with a second emergent surface (23) opposite to the first emergent surface (21) and at least one connecting surface connected between the first emergent surface (21) and the second emergent surface (23) and is designed into the incident plane (22). Light coming from the LED light engine (1) enters the remote phosphor structure (2) through the incident plane (22) and is emitted through the first emergent surface (21) and the second emergent surface (23).

Description

technical field [0001] The invention relates to an LED lighting device. Background technique [0002] Most existing LED lamps use one or more white LED light engines and LED light engines as light sources. The blue light emitted by the LED light engine is recombined with the green light and red light emitted by the phosphor to obtain white light. Another method is to use a converted green white (mint color) LED light engine combined with a red LED to produce white light, the resulting white light has a lower color temperature (2700K-4000K) Has a higher color rendering index. In all solutions, however, a portion of the light is lost through direct or reflected light onto the chip or into the LED package. Typical reflectivities for both chips and LED packages are below 90%. [0003] One approach that provides high optical efficiency is the remote fluorescence technique. Typical design configurations are in figure 1 shown in . It can be seen from the figure that the ligh...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V9/10F21Y101/02F21V9/40
CPCF21K9/61F21K9/64F21Y2103/10F21Y2115/10G02B6/0003G02B6/002
Inventor 诺贝特·林德
Owner OSRAM GMBH