CN101255956A - LED lamp - Google Patents

LED lamp Download PDF

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Publication number
CN101255956A
CN101255956A CNA2008100271629A CN200810027162A CN101255956A CN 101255956 A CN101255956 A CN 101255956A CN A2008100271629 A CNA2008100271629 A CN A2008100271629A CN 200810027162 A CN200810027162 A CN 200810027162A CN 101255956 A CN101255956 A CN 101255956A
Authority
CN
China
Prior art keywords
light
led
red
leds
green
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2008100271629A
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Chinese (zh)
Inventor
樊邦弘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heshan Lide Electronic Enterprise Co Ltd
Original Assignee
Heshan Lide Electronic Enterprise Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heshan Lide Electronic Enterprise Co Ltd filed Critical Heshan Lide Electronic Enterprise Co Ltd
Priority to CNA2008100271629A priority Critical patent/CN101255956A/en
Priority to PCT/CN2008/001035 priority patent/WO2009121217A1/en
Publication of CN101255956A publication Critical patent/CN101255956A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Led Device Packages (AREA)

Abstract

The invention discloses a LED light apparatus comprising a light casing and a LED module disposed in the light casing. The LED module at least comprises white light LED, red light LED and green light LED. Since the light comprises red-green optical spectrum, the color rendering index thereof is higher than that of LED with only two colors; since color temperature is controlled by using white light LED and red-green light LED cooperating with each other, light effect is not affected by fluorescent powder and is higher than that of similar products at same low color temperature.

Description

A kind of LED light fixture
Technical field
The present invention relates to a kind of light fixture, particularly a kind of light fixture that uses LED as light source.
Background technology
LED means light emitting diode from the abbreviation of English LIGHT EMITTING DIODE.The simplest light-emitting diode structure comprises, P-type semiconductor, N-type semiconductor and formed between the two PN junction are when electric current passes through diode, at above-mentioned PN junction place, just produce electric charge carrier, i.e. electronics and hole, electronics combines with the hole and gives off energy with the form of photon.The LED lamp compare with white lights such as common tengsten lamp, fluorescent lamps have life-span length, power saving, durable, firm, reaction is fast, low used heat and be suitable for advantage such as batch process, thereby be able to promote at lighting field gradually.
But find but that in the process of promoting employing LED is that the light fixture of light source exists a lot of technical bottlenecks simultaneously, many optical parametrics are difficult to surmount traditional light fixture, and this also is up till now for can't replace the reason of conventional lamp fully to the LED light fixture.Such as colour rendering index, LED light is monochromatic light, can't reduce the true colors of irradiated object, the cross-color of object is serious under the monochromatic light irradiation, though now a lot of technology adopt the method for mixed light to produce white light LEDs, the white light LEDs that adopts blue wafer and YAG yellow fluorescent powder method to make as Japanese Ri Ya company, because only contain blueness and yellow spectrum in its white light, colour rendering index still is significantly less than conventional lamp, the white light LEDs that also has the method manufacturing of some RGB three wafers or fluorescent material, cost is very high though its colour rendering index increases, and the problem that the white light LEDs of these three primary colours all exists decay to differ, so also not in general lighting field large-scale popularization.There is technical problem on white light LEDs light efficiency and the colour temperature too, the white light LEDs of low colour temperature can be built warm ambiance, in occasions such as furniture a large amount of demands is arranged, but because the characteristic of fluorescent material launching efficiency, the light efficiency of low color temperature white light LED also can't be accomplished the same with high color temperature white light LED high at present on encapsulation technology, therefore, the light efficiency of raising low color temperature white light LED light fixture has also just become a solid demand of industry.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of low colour temperature, high color rendering index (CRI), the white light LEDs light fixture of high light efficiency.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of LED light fixture comprises lamp housing and is installed in LED module in the lamp housing, and described LED module comprises three kinds of white light LEDs, red-light LED and green light LEDs at least.
The invention has the beneficial effects as follows that owing to comprise the red-green glow spectrum in the light, its colour rendering index is than the LED height that two kinds of colors are only arranged; Because adopt white light LEDs to join the method control colour temperature of ruddiness green light LED, its light efficiency is not subjected to the influence of fluorescent material, thus under the situation of hanging down colour temperature equally than like product light efficiency height.Below be partial test parameter of the present invention: the zone of light color on chromatic diagram is: x:0.34 y:0.37, x:0.43 y:0.36, x:0.35 y:0.42, x:0.43 y:0.4, colour rendering index is low by 80, colour temperature 3500K about, light efficiency is not less than 501m/W.
The present invention can also do following improvement:
The light strength ratio of described white light LEDs, red-light LED and green light LED is 7～8: 1.4～2: 1.
The light strength ratio of described white light LEDs, red-light LED and green light LED further is set to 7: 2: 1.
Also be provided with astigmatism plate before the described LED module.
Be connected with radiating fin on the described LED module.
The zone of described light color on chromatic diagram is: x:0.34 y:0.37, x:0.43 y:0.36, x:0.35 y:0.42, x:0.43 y:0.4.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention;
Fig. 2 is the cutaway view of Fig. 1;
Fig. 3 is a decomposition texture schematic diagram of the present invention;
Fig. 4 is the zone of light color of the present invention on chromatic diagram.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing,
A kind of LED light fixture comprises lamp housing 1 and is installed in the interior LED module 2 of lamp housing that described LED module comprises white light LEDs, green light LED and red-light LED at least.
With reference to Fig. 1, Fig. 2 and Fig. 3, lamp housing 1 is for having the cylindric of concentration structure, inwall be coated with reflectorized material or directly polishing to having good reflection action.LED module 2 comprises aluminium base 21 and the plurality of LEDs 22 that is installed on the aluminium base 21, at least comprise three kinds of white light LEDs, red-light LED and green light LEDs in the plurality of LEDs 22, the colour temperature of regulating light fixture by the luminous ratio of regulating white light LEDs, red-light LED and green light LED three, colour temperature is about 3500K, preferred light intensity ratio is: white light: ruddiness: green glow=8～15: 1: 1, wherein Zui Jia ratio was 7: 2: 1.As shown in Figure 4, the zone of light color on chromatic diagram is: x:0.34 y:0.37, x:0.43 y:0.36, x:0.35 y:0.42, x:0.43 y:0.4 is owing to comprise the red-green glow spectrum in the light, so its colour rendering index is than only containing two kinds of color LED height, adopt white light LEDs to join the method control colour temperature of ruddiness green light LED, its light efficiency is not subjected to the influence of fluorescent material, thus under the situation of hanging down colour temperature equally light efficiency than like product light efficiency height.For making light softer evenly, can also be that the light-emitting window of lamp housing 1 is provided with astigmatism plate 7 before the LED module.Aluminium base 21 tops can also be provided with heat-conducting plate 3, connect radiating fin 4 on the heat-conducting plate 3 again, help improving radiating efficiency like this when using high-capacity LED.Install for convenient, can also top cover 5 be set, hook 6 is set on the top cover 5 on radiating fin 4 tops.

Claims (6)

1, a kind of LED light fixture comprises lamp housing and is installed in LED module in the lamp housing, it is characterized in that: described LED module comprises three kinds of white light LEDs, red-light LED and green light LEDs at least.
2, a kind of LED light fixture according to claim 1, it is characterized in that: the light strength ratio of described white light LEDs, red-light LED and green light LED is 7～8: 1.4～2: 1.
3, a kind of LED light fixture according to claim 2, it is characterized in that: the light strength ratio of described white light LEDs, red-light LED and green light LED is 7: 2: 1.
4, according to claim 1 or 2 or 3 each described a kind of LED light fixtures, it is characterized in that: also be provided with astigmatism plate before the described LED module.
5, a kind of LED light fixture according to claim 1 is characterized in that: be connected with radiating fin on the described LED module.
6, a kind of LED light fixture according to claim 1, it is characterized in that: the zone of described light color on chromatic diagram is: x:0.34 y:0.37, x:0.43 y:0.36, x:0.35 y:0.42, x:0.43 y:0.4.
CNA2008100271629A 2008-03-31 2008-03-31 LED lamp Pending CN101255956A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CNA2008100271629A CN101255956A (en) 2008-03-31 2008-03-31 LED lamp
PCT/CN2008/001035 WO2009121217A1 (en) 2008-03-31 2008-05-28 A led lighting fitting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008100271629A CN101255956A (en) 2008-03-31 2008-03-31 LED lamp

Publications (1)

Publication Number Publication Date
CN101255956A true CN101255956A (en) 2008-09-03

Family

ID=39890968

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2008100271629A Pending CN101255956A (en) 2008-03-31 2008-03-31 LED lamp

Country Status (2)

Country Link
CN (1) CN101255956A (en)
WO (1) WO2009121217A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101968171A (en) * 2010-08-09 2011-02-09 上海光隧光电科技有限公司 LED (Light Emitting Diode) lighting source device capable of realizing high colour developing index
CN102734646A (en) * 2011-04-01 2012-10-17 上海广茂达光艺科技股份有限公司 LED downlight
CN104633499A (en) * 2015-02-04 2015-05-20 余建华 LED light source module with high color rendering index and LED lamp
CN105339730A (en) * 2013-04-05 2016-02-17 伊顿保护系统Ip有限两合公司 Led module, luminaire comprising same and method for influencing a light spectrum

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002270899A (en) * 2001-03-14 2002-09-20 Mitsubishi Electric Lighting Corp Color temperature variable led light source module
JP2004253309A (en) * 2003-02-21 2004-09-09 Nichia Chem Ind Ltd Special purpose led illumination with color rendering properties
US7009343B2 (en) * 2004-03-11 2006-03-07 Kevin Len Li Lim System and method for producing white light using LEDs
US7256557B2 (en) * 2004-03-11 2007-08-14 Avago Technologies General Ip(Singapore) Pte. Ltd. System and method for producing white light using a combination of phosphor-converted white LEDs and non-phosphor-converted color LEDs
TWI258621B (en) * 2004-09-16 2006-07-21 Hannstar Display Corp Backlight module
US20060209538A1 (en) * 2004-11-17 2006-09-21 Hannstar Display Corp. Backlight modules
CN1949507A (en) * 2005-10-12 2007-04-18 林志泽 LED device capable of regulating colour temp
DE102005061204A1 (en) * 2005-12-21 2007-07-05 Perkinelmer Elcos Gmbh Lighting device, lighting control device and lighting system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101968171A (en) * 2010-08-09 2011-02-09 上海光隧光电科技有限公司 LED (Light Emitting Diode) lighting source device capable of realizing high colour developing index
CN102734646A (en) * 2011-04-01 2012-10-17 上海广茂达光艺科技股份有限公司 LED downlight
CN105339730A (en) * 2013-04-05 2016-02-17 伊顿保护系统Ip有限两合公司 Led module, luminaire comprising same and method for influencing a light spectrum
US10851948B2 (en) 2013-04-05 2020-12-01 Eaton Protection Systems Ip Gmbh & Co. Kg LED module, luminaire comprising same and method for influencing a light spectrum
CN104633499A (en) * 2015-02-04 2015-05-20 余建华 LED light source module with high color rendering index and LED lamp

Also Published As

Publication number Publication date
WO2009121217A1 (en) 2009-10-08

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Open date: 20080903