CN104218033B

CN104218033B - A kind of S/P values LED illuminator high

Info

Publication number: CN104218033B
Application number: CN201410389985.1A
Authority: CN
Inventors: 约翰雷曼
Original assignee: BRILLIANCE TECHNOLOGIES Co Ltd
Current assignee: BRILLIANCE TECHNOLOGIES Co Ltd
Priority date: 2014-08-09
Filing date: 2014-08-09
Publication date: 2017-06-30
Anticipated expiration: 2034-08-09
Also published as: CN104218033A

Abstract

A kind of S/P values LED illuminator high, including a LED and the 2nd LED, the first LED dominant wavelengths are 500 520nm, and the 2nd LED dominant wavelengths are 605 652nm, and first LED chip and the second LED chip are the LED packages of the paster or COB forms being separately welded on different pads.Or including the blue-light LED chip that dominant wavelength is 440 460nm, the illuminator for stimulating 490 550nm hanced cyan fluorescents powder to be formed.Its advantage is that the spectral energy changed in artificial white light is constituted, there is provided closest to the spectrum composition of daylight, effectively avoid the too high injury to human eye for causing of blue light ratio.Offer is a kind of can be in the case where colour rendering index higher be obtained, the LED luminescent methods of holding higher photoluminescence efficiency, so that while LED light source light product are greatly improved, the farthest energy resource consumption of reduction LED light source.

Description

A kind of S/P values LED illuminator high

【Technical field】

The present invention relates to semi-conducting material and the element integrated with encapsulation, espespecially a kind of S/P values LED high lights Body.

【Background technology】

S/P is that photopic vision implies ratio, is the important parameter of light quality.The effective range of S/P ratios is from 0.25 (low pressure sodium Lamp) to 4 (state-of-the-art LED light sources).The size of S/P ratios, directly affects the height of perceived brightness.Therefore S/P ratios are improved It is a measure for the very important quality and energy-conservation for improving light.

1st, the basic principle of luminosity of existing LED illuminator is that blue chip stimulates fluorescent material to emit white light, this luminous mould Formula makes the S/P values of LED illumination lamp very low, generally below 1.2, and has during luminous and substantial amounts of has to human eye The blue light of injury overflows, and there was only luminous flux and illumination by increasing LED lamp according to the mode of clear object, not only injures human eye, While the substantial amounts of waste energy.

2nd, the white-light emitting diode with blue light stimulation fluorescent material of prior art has serious lacking in terms of spectral component Fall into --- because blue light ratio is too high, feux rouges ratio is too low, it is impossible to form saturation color spectrum.Because the failure of fluorescent material is led Cause the Spectrum attenuation of essence.The spectrum tuning of white light can be optimized with the monochromatic chip of narrow spectrum.Red is whole photoreception Main stimulation factor.Cyan can significantly improve Snazzi degree, recently by scientific journals and IES (IES) approve.

3rd, the fluorescent material stimulation white light LEDs after specific wavelength optimization can improve the Snazzi degree and performance of light source.Can change Kind photopic vision scotopia ratio (S/P ratios) and optimization color vision, the specifications and characteristics of light source can be substantially improved.By physiology and The theory of technology matching is similar to the power distribution for going frequency range with audio equalizer in voice applications.The physiology of eyes is anti- Should be corrected with the method for the physiological reaction of similar regulation ear, here it is changing (regulation) spectral power distribution.

4th, the physical characteristic of Light-Emitting Diode allows the composition of more manual controls and balance spectral to adapt to eyeball Physiological structure and dynamic motion.Market needs breakthrough innovation, using the characteristic of Light-Emitting Diode, produces new, revolutionary character LED light source.

【The content of the invention】

In view of the shortcomings of the prior art with market the need for, it is luminous it is an object of the invention to provide a kind of S/P values LED high Body.Light quality and performance for lifting illuminator (illuminating lamp and flash lamp) utensil of multispectral light-emittingdiode composition, with Effectively solve the problems, such as that existing blue light stimulates the low colour rendering index and low S/P ratios that fluorescent material emits white light.

One of the technical solution adopted for the present invention to solve the technical problems is：A kind of S/P values LED illuminator high is provided, It is characterized in that：Including a LED and the 2nd LED, a LED dominant wavelengths are 500-520nm, and the 2nd LED dominant wavelengths are 605-652nm, first LED chip and the second LED chip are the paster or COB forms being separately welded on different pads LED package.

The two of the technical solution adopted for the present invention to solve the technical problems are：A kind of S/P values LED illuminator high is provided, It is characterized in that：It is the blue-light LED chip of 440-460nm including a dominant wavelength, stimulates 490-550nm hanced cyan fluorescent powder to be formed Illuminator.

Further, the present invention can include that at least one dominant wavelength is the first LED chip, at least one of 500-520nm Individual dominant wavelength is the 3rd LED chip of 440-460nm for second LED chip and at least one dominant wavelength of 605-652nm, jointly The illuminator for stimulating 490-550nm hanced cyan fluorescents powder to be formed, first, second, and third LED chip can be separate welding The LED package of paster or COB forms on different pads.

First, second, and third LED chip of stating is the vertical chip for having P-N junction electrode.

3rd LED chip can be the blue chip plus illuminator obtained in green emitting phosphor that dominant wavelength is 450nm.

Further,

Illuminator of the colour rendering index more than or equal to 90 made with above-mentioned any one combination of light sources can also be included；

The reference color temperature of 3000K to the 4000K made with above-mentioned any one combination of light sources can also be included, express hint Illuminator of the ratio (S/P ratios) more than or equal to 2；

The reference color temperature of 4000K to the 5000K made with above-mentioned any one combination of light sources can also be included, express hint Illuminator of the ratio (S/P ratios) more than or equal to 2.5；

The reference color temperature more than 5000K made with above-mentioned any one combination of light sources can also be included, express hint ratio Illuminator of the example (S/P ratios) more than or equal to 2.8.

Can also include with above-mentioned any one combination of light sources possessing of making express hint ratio (S/P ratios) be more than or Equal to 2.5 and colour rendering index more than or equal to 90 illuminator.

The illuminator can be the illuminator of illuminator or flash lamp utensil.

The beneficial effects of the invention are as follows：Efficiently solve the low colour rendering index that existing blue chip stimulates fluorescent material to emit white light With the problem of low S/P ratios.The visual sense feeling brightness that relatively low S/P values light source is directly proportional is provided.Change the light in artificial white light Spectrum energy is constituted, there is provided closest to the spectrum composition of daylight, effectively avoid blue light ratio it is too high cause to human eye Injury.Offer is a kind of can be in the case where colour rendering index higher be obtained, the LED luminescent methods of holding higher photoluminescence efficiency, So as to while LED light source light product are greatly improved, farthest reduce the energy resource consumption of LED light source.

【Brief description of the drawings】

Fig. 1 is the contour structures schematic diagram of illuminator of the present invention.

Fig. 2 is the internal structure schematic diagram of illuminator of the present invention.

Fig. 3 is that traditional low colour rendering index LED and high color rendering index (CRI) LED light spectrum compare figure.

Fig. 4 is two-color white light spectrogram.

Fig. 5 is fluorescent material conversion complex spectrum+two-color white light spectrogram.

Fig. 6 is the heat energy decay pattern of monochromatic LED chip.

Fig. 7 is the chip-in series connection diagram of illuminator of the present invention.

Fig. 8 is that the chip of illuminator of the present invention is welded in two pad series connection schematic diagrames respectively.

【Specific embodiment】

Embodiment one：A kind of S/P values LED illuminator high, it is characterised in that：Including a LED and the 2nd LED, described One LED dominant wavelengths are 500nm, and the 2nd LED dominant wavelengths are 605nm, and first LED chip and the second LED chip are separate welderings The paster or the LED package of COB forms being connected on different pads.

Embodiment two：A kind of S/P values LED illuminator high, it is characterised in that：It is the blue light of 460nm including a dominant wavelength LED chip, the illuminator for stimulating 550nm hanced cyan fluorescents powder to be formed.

Embodiment three：A kind of S/P values LED illuminator high, it is characterised in that：It is the first of 500nm including two dominant wavelengths LED chip, two dominant wavelengths are the 3rd LED chip of 440nm for second LED chip and two dominant wavelengths of 605nm, common thorn Swash the illuminator that 490nm hanced cyan fluorescents powder is formed, first, second, and third LED chip can separately be welded on difference The LED package of paster or COB forms on pad.

Example IV：A kind of S/P values LED illuminator high, it is characterised in that：Including a LED and the 2nd LED, described One LED dominant wavelengths are 520nm, and the 2nd LED dominant wavelengths are 652nm, and first LED chip and the second LED chip are separate welderings The paster or the LED package of COB forms being connected on different pads.

Embodiment five：A kind of S/P values LED illuminator high, it is characterised in that：It is the blue light of 460nm including a dominant wavelength LED chip, the illuminator for stimulating 550nm hanced cyan fluorescents powder to be formed.

Embodiment six：A kind of S/P values LED illuminator high, it is characterised in that：It is the first of 520nm including two dominant wavelengths LED chip, two dominant wavelengths are the 3rd LED chip of 460nm for second LED chip and two dominant wavelengths of 652nm, common thorn Swash the illuminator that 550nm hanced cyan fluorescents powder is formed, first, second, and third LED chip can separately be welded on difference The LED package of paster or COB forms on pad.

In the various embodiments described above, first, second, and third LED chip of stating is the vertical chip for having P-N junction electrode.

In the various embodiments described above：

The illuminator colour rendering index made with above-mentioned any one combination of light sources is all higher than or equal to 90；

The illuminator reference color temperature made with above-mentioned any one combination of light sources is more than 3000K, expresses hint ratio (S/P Ratio) it is more than or equal to 2.

Claims

1. a kind of S/P values LED illuminator high, it is characterised in that：Its S/P ratio is more than or equal to 2, including at least one dominant wavelength The first LED chip, the second LED chip and at least one main ripple that at least one dominant wavelength is 605-652nm for 500-520nm 3rd LED chip of a length of 440-460nm, the illuminator that Co stituation 490-550nm hanced cyan fluorescents powder is formed, described first, Second and the 3rd LED chip be the paster or COB forms being separately welded on different pads LED package.

2. a kind of S/P values LED illuminator high according to claim 1, it is characterised in that：Described first, second, and third LED chip is the vertical chip for having P-N junction electrode.