LED lamp close to natural light
A technology of LED lamps and natural light, which is applied to the semiconductor devices, light sources, and fluorescence of light-emitting elements, and can solve the problems of the lack of adjustability of the spectrum of typical LED lamps, visual damage, and the lack of true display of object colors.
Inactive Publication Date: 2015-07-01
重庆希晨科技有限公司
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Problems solved by technology
Compared with the typical natural light spectrum, the spectrum of typical LED lamps has the following disadvantages: (1) The spectrum of typical LED lamps does not have continuity and fullness, and the spectral energy is only distributed in certain wavelength bands in certain visible light ranges; (2) The spectral energy distribution of typical LED lamps has energy peaks. In the case of long-term lighting, the light with energy peaks is more likely to cause eye fatigue and may damage eyesight; (3) The color rendering index of typical LED lamps is relatively low Low, the real display of object color is insufficient; (4) The spectrum of typical LED lamps is not adjustable, and the adaptability to different environments, different times or seasons, and different groups of people is poor
Method used
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Embodiment Construction
[0032] The preferred embodiment of the present invention will be described in detail below.
[0033] Such as Figure 3a and Figure 3b As shown, a near-natural light LED lamp of the present invention includes 6 parts. The lamp structure 1 is used to support the entire lamp, and the light-permeable medium 2 is well connected to the lamp structure 1. The phosphor powder is mixed with silica gel or other solvents to form a phosphor powder layer 3, and the phosphor layer 3 is placed on the light-transmissive medium 2. The type of phosphor and solvent material, the ratio of phosphor to solvent, and the thickness of the phosphor layer can all be changed to adjust the spectral energy distribution of the light of the lamp, and realize the adjustment of color temperature, color rendering index, color coordinates, etc. Effective control of color parameters. The phosphor layer 3 can be a multilayer structure, and the optical properties of each layer of phosphors (such as excitation wavele...
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Abstract
The invention discloses an LED natural light close to natural light. The LED natural light comprises an LED light source, a transmitting medium, a phosphor layer and a structural member. The phosphor layer is of a multi-layer structure, and phosphor on each layer is different in nature; after light rays transmitted from the LED light source pass through the phosphor layer, photons trigger the phosphor different in nature to generate photons different in wavelength, and the other photons do not change in wavelength after passing through the phosphor layer; the photons different in wavelength are blended in the proper proportion to generate the light rays needed by the LED lamp finally. The phosphor layer is controlled in material, proportion, thickness, number of layers and combination mode, combination of different LED chips in the LED light source and driving current of the chips is controlled, overall control on spectral energy distribution of the LED lamp can be realized, and lighting close to the natural light is realized.
Description
Technical field [0001] The invention relates to an LED lamp, and in particular to an LED lamp whose spectral energy distribution is close to the natural light spectrum and adopts remote phosphor technology. Background technique [0002] A light source near natural light refers to its spectral energy distribution close to that of natural light. Typical natural light spectrum such as figure 1 As shown, the spectrum contains the energy distribution of all wavelengths in the visible light range, and the spectrum has continuity and fullness. The continuity and fullness of the spectrum can improve the visibility and color rendering of objects. Studies have shown that in a lighting environment close to natural light, the visual fatigue of the eyes will be relatively low, vision can be effectively protected, and the color of objects can be displayed more realistically. [0003] At present, the realization of white light LED mainly adopts the method of blue chip to excite yellow phosphor. ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F21K2/00F21Y101/02F21Y115/10
Inventor 卞先彬文波张偌雨张娜李海利杨柳
Owner 重庆希晨科技有限公司