Full spectrum LED phosphor composition and high color white light LED lamp

A technology of LED lamps and phosphors, applied in the field of lighting, can solve the problems of high color temperature, low color rendering index of phosphors or their combination, and not suitable for home lighting LEDs, etc., achieve good color rendering, improve work and study efficiency, The effect of protecting eyesight
CN106601892AActive Publication Date: 2017-04-26HEBEI LIFU CHEM TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HEBEI LIFU CHEM TECH
Publication Date
2017-04-26

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Abstract

The invention discloses a full spectrum LED phosphor composition and a high color white light LED lamp. The composition comprises 78% to 88% of green phosphor with the emission peak of 500 nm to 550 nm under blue light excitation and 12% to 22% of red phosphor with the emission peak of 625 nm to 670 nm under blue light excitation, the phosphor composition has a general color rendering index larger than 95 under CCT of about 2700K to 6000K has a full spectrum close to natural light, the package of 2700K to 6000K color temperature can be realized, the yield is high, and the phosphor composition can be widely applied to an occasion with a strict color discrimination requirement such as lighting, printing and dyeing, jewelry, and cosmetics.
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Description

technical field

[0001] The invention relates to the technical field of lighting, in particular to a full-spectrum LED fluorescent powder composition and a high-color-rendering white LED lamp. Background technique

[0002] 15 standard color samples are stipulated internationally, and a wider CRI (R1-R15) can be calculated from their average value, but CRI is usually defined as the average value of 8 standard color samples (R1-R8), which is usually called As a general color rendering index, and abbreviated as Ra. In particular, the color rendering of R9 saturated red is very important for a certain range of applications.

[0003] At present, the mainstream white light LED uses InGaN blue light chips to excite YAG:Ce 3+ Phosphor powder produces yellow light complementary to blue light, which is then mixed to achieve. However, since YAG:Ce 3+ In phosphors, the spectral energy of red light accounts for about 8-15% of the total spectral energy, which is much lower than the pro...

Claims

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