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Quasi natural light LED light source and illumination device

A technology of LED light source and natural light, which is applied in lighting devices, components of lighting devices, light sources, etc., can solve problems such as large spectrum differences, achieve the effect of improving color rendering index, improving health level, and reducing blue light

Inactive Publication Date: 2018-12-14
RANZON INNOVATION HLDG SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a quasi-natural light LED light source, which aims to solve the technical problem that the spectrum of traditional LED light source and natural light is quite different, so as to protect people's eyesight and improve their health

Method used

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  • Quasi natural light LED light source and illumination device
  • Quasi natural light LED light source and illumination device
  • Quasi natural light LED light source and illumination device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] A fluorescent film containing AB silica gel, CaSrAlSiN3 red phosphor (color coordinates, X: 0.660-0.716, Y: 0.286-0.340), BaSi2O2N2 green phosphor (color coordinates, X: 0.064-0.081, Y: 0.488-0.507) and Y3Al5Ga5O12 yellow-green phosphor (color coordinates, X: 0.367-0.424, Y: 0.545-0.571); wherein, the weight ratio of CaSrAlSiN3 red phosphor, BaSi2O2N2 green phosphor and Y3Al5Ga5O12 yellow-green phosphor is (0.020-0.035): (0.018-0.030): (0.140-0.253), the mass percent content of the three fluorescent powders in the fluorescent film is 33-43%.

[0085] The fluorescent film is excited by blue light to obtain white light near natural light with a color temperature of 2700K-3000K: in the spectrum, the relative spectrum of the 480-500nm band is greater than 0.30, and the relative spectrum of the 500-640nm band is greater than 0.70.

Embodiment 2

[0087] A fluorescent film containing AB silica gel, CaSrAlSiN3 red phosphor (color coordinates, X: 0.660-0.716, Y: 0.286-0.340), BaSi2O2N2 green phosphor (color coordinates, X: 0.064-0.081, Y: 0.488-0.507) and Y3Al5Ga5O12 yellow-green phosphor (color coordinates, X: 0.367-0.424, Y: 0.545-0.571); wherein, the weight ratio of CaSrAlSiN3 red phosphor, BaSi2O2N2 green phosphor and Y3Al5Ga5O12 yellow-green phosphor is (0.010-0.022): (0.020-0.040): (0.080-0.140), the mass percent content of the three fluorescent powders in the fluorescent film is 25-35%.

[0088] The fluorescent film is excited by blue light to obtain white light with a color temperature of 4000K-4200K close to natural light: in the spectrum, the relative spectrum of the 480-500nm band is greater than 0.45, and the relative spectrum of the 500-640nm band is greater than 0.65.

Embodiment 3

[0090] A fluorescent film containing AB silica gel, CaSrAlSiN3 red phosphor (color coordinates, X: 0.660-0.716, Y: 0.286-0.340), BaSi2O2N2 green phosphor (color coordinates, X: 0.064-0.081, Y: 0.488-0.507) and Y3Al5Ga5O12 yellow-green phosphor (color coordinates, X: 0.367-0.424, Y: 0.545-0.571); wherein, the weight ratio of CaSrAlSiN3 red phosphor, BaSi2O2N2 green phosphor and Y3Al5Ga5O12 yellow-green phosphor is (0.010-0.020): (0.030-0.068): (0.071-0.130), the mass percent content of the three fluorescent powders in the fluorescent film is 17-27%.

[0091] The fluorescent film is excited by blue light to obtain white light with a color temperature of 5500K-6000K close to natural light: in the spectrum, the relative spectrum of the 480-500nm band is greater than 0.40, and the relative spectrum of the 500-640nm band is greater than 0.60.

[0092] Further, refer to Figure 8 and Figure 9 , the spectrum of this light source is also very similar to natural light in other wave b...

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Abstract

The invention applies to the technical field of illumination and provides a quasi natural light LED light source. The quasi natural light LED light source comprises a base layer, at least one light-emitting assembly arranged on the base layer and a circuit connected with the light-emitting assemblies; each light-emitting assembly comprises a white-light-emitting body and a red-light-emitting body,each white-light-emitting body comprises a first chip and an optical conversion film, and each red-light-emitting body comprises a red light chip; red light is used for compensating for a red light part which lacks in white light compared to natural spectrum to the white light to form quasi natural light; and relative spectral power of the red light in the quasi natural light is greater than 0.60, the relative spectral power of cyan light is greater than 0.30, and the relative spectral power of blue light is less than 0.75. The quasi natural light LED light source can emit the quasi natural light, the blue light is reduced, the cyan light and the red light are added, protecting of eyesight is facilitated, sub-health problems are reduced, the problem that the cyan light is difficult to addin the field is solved, and a color rendering index is further improved; meanwhile, the red light is added, so that the health illumination level is improved; in addition, the quasi natural light LEDlight source is simple in composition, convenient to adjust and apply, high in reliability and good in adaptability.

Description

technical field [0001] The invention relates to the technical field of LEDs, in particular to a quasi-natural light LED light source and an illuminating device including the light source. Background technique [0002] Light is one of the necessary conditions for human survival. The role of light affects the growth of organisms and the evolution of species. In the process of human evolution, we first learned to use natural light. The light of nature has left a deep imprint on the course of human evolution. , For example: sunrise and sunset form an optical biological clock; the change of light color day and night, and the psychological and physiological effects of light on human beings, etc. [0003] The emergence of artificial light has solved the lighting problem at night or in dark environments, but it has also greatly changed the circadian rhythm of natural light that people have formed for a long time. The harm caused by ordinary artificial light lighting to people cannot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21K9/20F21K9/64F21V9/40F21V23/00F21Y115/10
CPCF21K9/20F21K9/64F21V9/40F21V23/003F21Y2115/10
Inventor 曾胜曾骄阳曾灵芝陈俊达陈道蓉许瑞龙
Owner RANZON INNOVATION HLDG SHENZHEN CO LTD
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