Full-spectrum high-color-rendering LED white light emitting device and manufacturing method thereof

Abstract

The invention belongs to the field of LED light emitting devices and aims at providing a full-spectrum high-color-rendering LED white light emitting device to solve the problems of spectrum incompletion of white light produced by LED excited fluorescent powder, high components of blue light peak values, poor color reducibility and the like. The full-spectrum high-color-rendering LED white light emitting device comprises a device support and device pins, wherein at least one group of light emitting units electrically connected with the device pins is arranged on the device support, each light emitting unit comprises two or more blue light LED chips of different wavelengths, LED chips are fixed to the device support through insulation paste or are fixed to the device pins through elargol, and a cavity where the LED chips are fixed is filled with a mixture of fluorescent powder and silica gel. The full-spectrum high-color-rendering LED white light emitting device is fuller in spectrum, more continuous, wider in frequency spectrum, softer in light color and higher in light effect, reduced object surface colors are more lifelike, blue light is less, and the blue light peak values are lower.

Description

technical field [0001] The invention provides an LED white light-emitting device with high luminous efficiency, high color rendering, full spectrum, continuous spectrum, and no ultraviolet light and low blue light peak, which has higher excitation efficiency, more uniform and fuller spectrum, high luminous efficiency, and bright display. Good color, no harmful light, reduced peak power of blue light, etc. Background technique [0002] With the continuous development of LED in lighting applications, people have higher and higher requirements for light. Now in the LED field, a single-wavelength blue LED chip excites red and yellow-green phosphors to produce white light. There are many problems, such as : High blue light peak, narrow spectrum, poor color rendering, high blue light leakage components, intermittent, narrow and incomplete spectrum, resulting in unrealistic color reproduction on the surface of the object, blue light peak wavelength seriously exceeds the standard, a...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of LED in lighting applications, people have higher and higher requirements for light. Now in the LED field, a single-wavelength blue LED chip excites red and yellow-green phosphors to produce white light. There are many problems, such as : High blue light peak, narrow spectrum, poor color rendering, high blue light leakage components, intermittent, narrow and incomplete spectrum, resulting in unrealistic surface color reproduction, blue light peak wavelength seriously exceeds the standard, serious damage to the retina, etc.

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