LED lamp, LED illumination device, and LED module

A technology of LED lamps and LED light sources, applied in lighting devices, lighting device parts, lighting and heating equipment, etc., can solve problems such as unclearness, the appearance of illuminated objects, and insufficient color rendering.

Active Publication Date: 2012-11-14
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not clear how to simultaneously improve the color rendering of mid-saturated colors and vivid reds to achieve a natural look
[0010] In addition, the industrial use of LED light sources as energy-saving light sources has increased rapidly recently. However, in general-distributed LED light sources, even in applications that only ensure brightness, they can be used without problems. Sex is not enough level depending on the use

Method used

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  • LED lamp, LED illumination device, and LED module
  • LED lamp, LED illumination device, and LED module
  • LED lamp, LED illumination device, and LED module

Examples

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Embodiment Construction

[0045] Embodiments for implementing the present invention will be described in detail with reference to the drawings.

[0046]

[0047] figure 1 It is a figure which shows the structure of the LED lamp which concerns on embodiment of this invention, and a part is notched.

[0048] The LED lamp 1 is a so-called bulb-shaped lamp instead of an incandescent bulb. An E-type lamp base 3 is installed on one end of the main body 2 , and an LED module 5 emitting white light and a dome cover 6 for covering it are installed on the other end 4 .

[0049] In the LED module 5, the blue LED12 is mounted on the circuit board 11, and the blue LED12 is sealed with the translucent member 13, such as a silicone resin. Green or yellow phosphor 14 and red phosphor 15 are dispersed in translucent member 13 . An LED light source is constituted by a combination of the blue LED 12 , the green or yellow phosphor 14 , and the red phosphor 15 .

[0050] The blue LED 12 has a main light emission peak...

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Abstract

Disclosed is an LED lamp which is capable of having a bright red color look natural. Specifically disclosed is an LED lamp (1) which comprises: an LED module (5) comprising a blue LED (12) that has a main emission peak within the wavelength range of 440-460 nm, a green or yellow phosphor (14) that is excited by the light emitted from the blue LED (12), and a red phosphor (15) that is excited by the light emitted from the blue LED (12) and / or the green or yellow phosphor (14); and a filter (16) that reduces the spectral radiation intensity of at least a part of the wavelength range of 570-590 nm among the light emitted from the LED module (5).

Description

technical field [0001] The invention relates to an LED lamp, an LED lighting device and an LED module, in particular to a technology for improving color rendering. Background technique [0002] In recent years, energy-saving LED lamps have been widely used instead of incandescent bulbs. As a white LED light source, for example, there is a structure in which a blue LED using gallium nitride (GaN) is combined with a YAG-based yellow phosphor. In this LED light source, blue light is generated from a blue LED, yellow light is generated from a yellow phosphor excited by the light, and these lights are mixed to produce white light. [0003] In general lighting, it is desired that the color of an object irradiated with illumination light look natural, that is, have high color rendering, and various technologies for improving the color rendering of LED light sources have been proposed in the past. For example, Patent Document 1 proposes a technique for increasing the average color...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V3/00F21V9/08H01L33/50F21Y101/02
CPCC03C3/00H01L33/504F21V3/0481F21K9/56H01L33/502F21K9/135F21Y2103/003F21K9/17F21Y2101/02Y02B20/386C09K11/7774F21K9/232F21K9/27F21K9/64F21Y2103/10F21Y2115/10F21V3/12
Inventor 松林容子八木裕司清水正则真锅由雄元家淳志松尾和寻森俊雄
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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