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An imitation solar spectrum LED lamp

A sun-like technology for LED lights, applied in the field of solar-like spectrum LED lights, can solve problems such as low color rendering value, high peak wavelength of blue light, eye damage, etc.

Active Publication Date: 2021-08-13
GUANGZHOU JUHONG OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the blue light excitation is easy to cause damage to the eyes due to the high peak wavelength of blue light; the color rendering value of the multi-monochromatic mixing method is not high

Method used

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  • An imitation solar spectrum LED lamp
  • An imitation solar spectrum LED lamp
  • An imitation solar spectrum LED lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] An LED lamp imitating the solar spectrum, which is composed of a substrate, an LED chip, and an encapsulation glue for encapsulating the LED chip. The encapsulation glue is doped with 25wt% composite phosphor powder, and the composite phosphor powder consists of 50% of the first phosphor powder, 43% of the second phosphor powder. Composed of the second phosphor and 7% of the third phosphor.

[0054] The emission spectrum of the imitation solar spectrum LED lamp is as follows Figure 6 As shown, the color temperature of the solar spectrum LED lamp is 1800K. The sun-imitating spectrum LED lamp has a continuous spectrum in the wavelength range of 380-780nm, wherein, in the wavelength range of 640-654nm, its emission spectrum reaches a peak value, and the color rendering index of r9 is higher than 98%.

Embodiment 2

[0056] An LED lamp imitating the solar spectrum, which is composed of a substrate, an LED chip, and an encapsulation glue for encapsulating the LED chip. The encapsulation glue is mixed with 22wt% composite phosphor powder, and the composite phosphor powder is composed of 52% of the first phosphor powder, 42% of the second phosphor powder. Composed of the second phosphor and 6% of the third phosphor.

[0057] The emission spectrum of the imitation solar spectrum LED lamp is as follows Figure 7 As shown, the color temperature of the solar spectrum LED lamp is 3000K, and the LED lamp has a continuous spectrum in the wavelength range of 380-780nm. Among them, the emission spectrum reaches a peak near 640nm, and the color rendering index of r9 is high. at 98%.

Embodiment 3

[0059] An LED lamp imitating the solar spectrum, which is composed of a substrate, an LED chip, and an encapsulation glue for encapsulating the LED chip. The encapsulation glue is mixed with 20wt% composite phosphor powder, and the composite phosphor powder is composed of 53wt% of the first phosphor powder, 42wt% of the second phosphor powder. Composed of the second phosphor and 5wt% of the third phosphor.

[0060] The emission spectrum of the imitation solar spectrum LED lamp is as follows Figure 8 As shown, the color temperature of the solar spectrum LED lamp is 3600K. The sun-imitating spectrum LED lamp has a continuous spectrum in the wavelength range of 380-780nm, wherein the emission spectrum reaches a peak around the wavelength of 630nm, and the color rendering index of r9 is higher than 98%.

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Abstract

The invention discloses a solar spectrum imitation LED lamp, which is composed of a base plate, a purple LED chip, and an encapsulation glue used for encapsulating the purple light LED chip. The encapsulation glue is mixed with a composite fluorescent powder, and the composite phosphor powder consists of first, second and second Composed of three phosphors, the peak wavelength of the first phosphor is 445-455nm, and the dominant wavelength is 485-495nm; the peak wavelength of the second phosphor is 445-455nm, and the dominant wavelength is 470-480nm; the peak wavelength of the third phosphor is 650‑660nm, the main wavelength is 605‑615nm; the wavelength of the violet LED chip is 405‑425nm. The sun-like spectrum LED lamp utilizes the interaction of the first and second phosphors with similar peak wavelengths, a difference of 10-15nm in dominant wavelengths, and an optimal excitation wavelength that matches the violet LED chip, thereby forming a continuous sun-like spectrum. High color value, less prone to visual fatigue.

Description

technical field [0001] The invention relates to the technical field of LED spectrum, in particular to an LED lamp imitating solar spectrum. Background technique [0002] The solar spectrum is a continuous spectrum of different wavelengths. The spectrum of the solar spectrum can be called the full spectrum, which includes ultraviolet light, visible light and infrared light. [0003] Sunlight has obvious biological effects. Plants can undergo synthesis under the action of sunlight, and animal skin can undergo vitamin D conversion under the action of sunlight. Infrared rays have a huge thermal effect, and ultraviolet rays have obvious bactericidal effects. [0004] solar spectrum as figure 1 It has been shown that human eyes feel the most comfortable and clear when observing things under sunlight. The wavelength curve of the solar spectrum in the range of 350-800 has a gentle transition, which can effectively reduce eye fatigue. White LED spectrum, there is a sudden blue lig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/50
Inventor 谢锡龙
Owner GUANGZHOU JUHONG OPTOELECTRONICS
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