LED lamp, LED illumination device, and LED module

A technology of LED lights and LED light sources, which is applied to lighting devices, components of lighting devices, lighting and heating equipment, etc., and can solve problems such as the perception of illuminated objects, insufficient color rendering, and unclearness

Active Publication Date: 2015-05-06
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
View PDF7 Cites 0 Cited by
  • 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

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
  • 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

Experimental program
Comparison scheme
Effect test

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...

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

PropertyMeasurementUnit
wavelengthaaaaaaaaaa
Login to view more

Abstract

An LED lamp provides a strong red color with a natural appearance. The LED lamp 1 is provided with an LED module 5 and a filter 16. The LED module 5 includes a blue LED 12 with a main emission peak in the 440 nm to 460 nm wavelength band, a green / yellow phosphor 14 that is excited by light emitted by the blue LED 12, and a red phosphor 15 that is excited by light emitted by at least one of the blue LED 12 and the green / yellow phosphor 14. The filter 16 reduces the spectral radiation intensity of at least a portion of the 570 nm to 590 nm wavelength band among light emitted by 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

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 Patents(China)
IPC IPC(8): F21S2/00F21V3/00F21V9/08H01L33/50F21Y101/02
CPCH01L33/504C09K11/7774F21K9/232F21K9/27F21K9/64F21Y2103/10F21Y2115/10F21V3/12H01L33/502C03C3/00
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap