White LED lamp color temperature and luminous flux continuous adjusting method

A technology of white light and luminous flux, applied in the direction of light source, electric light source, electric lamp circuit layout, etc., can solve the problems of high cost, different temperature characteristics and light maintenance characteristics, high circuit design requirements, and achieve the effect of simple design

CN101868085AInactive Publication Date: 2010-10-20上海亮硕光电子科技有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2010-10-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a white LED lamp color temperature and luminous flux continuous adjusting method, which comprises the following steps: firstly placing two UVLED chips A and B at the center of a lamp barrel coated with trichromatic phosphor; and respectively adjusting the luminous intensity of the two UVLED chips for the excitation of the trichromatic phosphor so as to realize the continuous adjusting of the color temperature and the luminous flux, wherein the wave length of the ultraviolet light emitted by the UVLED chip A is a nm, the wave length of the ultraviolet light emitted by the UVLED chip B is b nm, the lights with the wave length respectively being a nm and b nm are all within the ultraviolet light waveband, and a is not equal to b. In addition, the trichromatic phosphor must satisfy the following requirements: green powder has the same adsorption and emission intensity to the lights with the wave length respectively being a nm and b nm; blue powder is strong in adsorbing the light with the wave length being b nm, and is weak in adsorbing the light with the wave length being a nm; and red powder is strong in adsorbing the light with the wave length being a nm, and is weak in adsorbing the light with the wave length being b nm, wherein the lights with the wave length respectively being a nm and b nm are all within the ultraviolet light waveband.
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Description

Technical field:

[0001] The invention relates to the technical field of LED light adjustment, in particular to a method for continuously adjusting the color temperature and luminous flux of a white LED light. Background technique:

[0002] Right now, our artificial lighting is generally static and less dynamic than natural lighting. However, dynamic lighting can overcome this shortcoming. The so-called dynamic lighting is lighting that can control the intensity of lighting and the level of color temperature. For example, in the early morning, the lighting system provides high lighting color temperature, and the cool color light makes people who enter the office energetic to start the day's work; at lunch time, the color temperature is lowered, and the warm color light helps people relax; people usually feel sleepy after lunch , At this time, the color temperature rises to avoid taking a nap after lunch, etc. are all dynamic lighting, that is, the application of a lighting ...

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Embodiment Construction

[0021] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0022] see figure 1 , the method of the present invention involves comprising a lamp tube (shown as a partial view of the lamp tube) that is coated with three primary color phosphors and two UVLED chips (one is a chip A that emits ultraviolet light with a wavelength of a nanometer) as to the center of the lamp tube. , one is a chip B) that emits ultraviolet light with a wavelength of b nanometers, and the driver circuit of the chip.

[0023] see figure 2 , if when chip B emits ultraviolet light of b nanometer wavelength to excite the blue powder, the main wavelength of the emission spectrum of the blue powder is around 450nm, and the ultraviolet light of a nanometer wavelength and the ultraviolet light of b nanometer wavelength emitted by chip...