Light source module and lighting device comprising same
AssigneesSuzhou Opple Lighting Co., Ltd., Opple Lighting Co., Ltd.
InventorsZhixian Zhou, Jie Qiang
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Abstract
A light source module and a lighting device using the light source module. The light source module includes a first light-emitting element and a packaging part covering the first light-emitting element. The packaging part includes a first additional luminous body, a second additional luminous body, and a third additional luminous body, the light emitted by each luminous body is mixed into day white light, which is used as the emitted light of the light source module. The light source module provided by the present disclosure provides a cold white LED (5700K) light source with high luminous efficiency, high CS values and high color rendering by controlling the ratio of luminous energy of different wavelength ranges in the total luminous energy.
Claims20
A light source module, comprising a first light-emitting element and a packaging part covering the first light-emitting element, wherein:
- the first light-emitting element emits first color light with a peak wavelength of 435˜465 nm;
- and
- the packaging part comprises:
- a first additional luminous body which is arranged to receive part of light emitted by the first light-emitting element and convert it into second color light with a peak wavelength of 485˜515 nm;
- a second additional luminous body which is arranged to receive part of light emitted by the first light-emitting element and convert it into third color light with a peak wavelength of 520˜580 nm;
- a third additional luminous body which is arranged to receive part of light emitted by the first light-emitting element and convert it into fourth color light with a peak wavelength of 615˜655 nm,
- the first color light, the second color light, the third color light and the fourth color light are mixed to form emitted light of the light source module, the emitted light is neutral white light, that is, on a CIE1931 color space, the emitted light is located in an interval enclosed by points with correlated color temperature of 5750±400K and distances from black body trajectory duv=−0.006˜0.006,
- a spectrum of the emitted light has following features:
- defining a spectral energy of the spectrum of the emitted light in a visible light range, that is, a wavelength range [380˜780 nm], as an entire spectral energy of the emitted light;
- a spectral energy in a wavelength range [380˜470 nm] accounts for 12.0% ˜32.0% of the entire spectral energy;
- a spectral energy in a wavelength range (470˜560 nm] accounts for 25.0%˜45.0% of the entire spectral energy;
- a spectral energy in a wavelength range (560˜780 nm] accounts for 36.0%˜56.0% of the entire spectral energy;
- and
- a spectral energy in a wavelength range (470˜520 nm] accounts for 14.0%˜34.0% of the entire spectral energy.
A lighting device comprising a light source module, wherein the light source module comprises a first light-emitting element and a packaging part covering the first light-emitting element, wherein:
- the first light-emitting element emits first color light with a peak wavelength of 435˜465 nm;
- and
- the packaging part comprises:
- a first additional luminous body which is arranged to receive part of light emitted by the first light-emitting element and convert it into second color light with a peak wavelength of 485˜515 nm;
- a second additional luminous body which is arranged to receive part of light emitted by the first light-emitting element and convert it into third color light with a peak wavelength of 520˜580 nm;
- a third additional luminous body which is arranged to receive part of light emitted by the first light-emitting element and convert it into fourth color light with a peak wavelength of 615˜655 nm,
- the first color light, the second color light, the third color light and the fourth color light are mixed to form emitted light of the light source module, the emitted light is neutral white light, that is, on a CIE1931 color space, the emitted light is located in an interval enclosed by points with correlated color temperature of 5750±400K and distances from black body trajectory duv=−0.006˜0.006,
- a spectrum of the emitted light has following features:
- defining a spectral energy of the spectrum of the emitted light in a visible light range, that is, a wavelength range [380˜780 nm], as an entire spectral energy of the emitted light;
- a spectral energy in a wavelength range [380˜470 nm] accounts for 12.0%˜32.0% of the entire spectral energy;
- a spectral energy in a wavelength range (470˜560 nm] accounts for 25.0%˜45.0% of the entire spectral energy;
- a spectral energy in a wavelength range (560˜780 nm] accounts for 36.0%˜56.0% of the entire spectral energy;
- and
- a spectral energy in a wavelength range (470˜520 nm] accounts for 14.0%˜34.0% of the entire spectral energy.
Dependencies are inferred from the claim text.