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Method for protecting human reproduction and vision by improving semiconductor illuminating mode

A lighting method and semiconductor technology, which is applied in semiconductor devices of light-emitting elements, lighting devices, lighting and heating equipment, etc., can solve the problems that have not been mentioned, clear blue light, and do not involve semiconductor daily lighting and display, etc., and achieve low cost, good performance

Inactive Publication Date: 2016-07-20
方文卿
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Through online search, none of the patents related to the effect of LED on melatonin involves reproduction. For example, the invention patent "CN201210515511-LED Lighting Improves Crew's Work Efficiency and Sleep Quality Method and Lamp", although it also talks about the selective use of blue light, it does not. Mention how to remove blue light from the current white LED, let alone consider it from the perspective of reproduction
The academic paper "Spectrum Distribution Synthesis of LED-Based Spectrally Adjustable Light Sources" by Zhu Jiyi mentioned that dozens of LEDs can be used to strictly simulate the full luminous spectrum of various light sources, and the purpose is to explore the flexible composition of various standards by dozens of LEDs. The feasibility of the light source in principle does not involve semiconductor daily lighting and display, nor is it aware of the impact on reproduction and vision

Method used

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  • Method for protecting human reproduction and vision by improving semiconductor illuminating mode
  • Method for protecting human reproduction and vision by improving semiconductor illuminating mode
  • Method for protecting human reproduction and vision by improving semiconductor illuminating mode

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Embodiment 1: Simulate incandescent light spectrum 5 with 5 kinds of pure LEDs, namely from 480nm to 630nm this section wide W=150nm spectrum, see figure 2 .

[0040] Step 1: Select the type of LED: InGaN material can emit light at least covering any visible light wavelength from violet to red light. Referring to the characteristics of the half-maximum width of the LED luminescence peak of this series, select the following 5 LEDs: 480nm LED6 (peak wavelength λ 1 =480nm, half maximum width W 1 =23nm), 505nm LED7 (peak wavelength λ 2 =505nm, half maximum width W 2 =30nm), 537nm LED8 (peak wavelength λ 3 =537nm, half maximum width W 3 =40nm), 578nm LED9 (peak wavelength λ 4 =578nm, half maximum width W 4 =50nm), 630nmLED10 (peak wavelength λ 5 =630nm, half maximum width W 5 = 62nm). For the luminous spectrum of each LED, the industry believes that it can be expressed by Gaussian distribution; the half-peak width of each LED and the spectral width to be fitted mee...

Embodiment 2

[0051] Embodiment 2: simulate incandescent lamp spectrum 5 with 4 kinds of LEDs, wherein orange yellow 608nmLED15 excites fluorescent powder by the purple light LED of 430nm and emits light, see image 3 .

[0052] Indium Gallium Nitride materials can emit light covering any visible light wavelength from violet to red, which means that any LED in this area can be made. However, as the wavelength becomes longer, the luminous efficiency of LEDs of this material system plummets in the green, yellow, and red light regions. Currently, there is no competitive advantage in the yellow and red light regions; in the green light region, if used as For daily lighting, it is still unable to compete with the "blue LED + phosphor" lighting mode in terms of efficiency. At present, high-efficiency red LEDs can be provided by another aluminum gallium indium phosphorus luminescent material system; the efficiency of green LEDs of indium gallium nitrogen has been greatly improved, but the efficie...

Embodiment 3

[0064] Embodiment 3: use 5 kinds of LEDs to simulate the natural light spectrum 4 in the shade at noon, wherein the orange 608LED15 excites the fluorescent powder by the LED of 430nm and emits light, see Figure 4 .

[0065] Similar to Example 2, since the natural light spectrum 4 contains blue light with a shorter wavelength, the blue light LED 470LED17 is added; the blue light with a wavelength of 470nm corresponds to the blue color of the sky, and humans are relatively accustomed to it, while the current semiconductor lighting The wavelength of blue light is 450nm, which is not natural. Therefore, even if it is to simulate natural light in the shade at noon, this embodiment still chooses LEDs with long wavelengths as far as possible, which are close to the natural blue light of the sky. The specific method is as follows:

[0066] Step 1: Select the LED type: Select the following 5 LEDs: 470nm LED17 (peak wavelength λ 0 =470nm, half maximum width W 0 =20nm), 482nmLED12 (p...

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Abstract

The invention discloses a method for protecting human reproduction and vision by improving a semiconductor illuminating mode. The adverse effect of blue ray in a fluorescent lamp on the reproduction is associated for the first time; through comparison with a spectrum of the fluorescent lamp, the blue ray in traditional semiconductor illumination mainly using LED illumination also has the adverse effect on the reproduction; and the main range and the dose reference of the spectrum influencing the reproduction are determined. The spectrum of an incandescent lamp is relatively safe; and a blue ray LED+fluorescent powder=white light mode in traditional semiconductor illumination cannot eradicate the adverse effect on the reproduction through lowering the color temperature, and a blue ray LED needs to be singly controlled, so that 4-5 methods of LEDs on the market capable of preferably simulating the spectrum of the incandescent lamp and natural light are given, and home illumination at night can influence the reproduction even if simulating the natural light in the daytime. The method proposes new illuminating concepts of individuality, time period, health and monitorability for the semiconductor illumination; and the semiconductor illumination can quickly satisfy the requirements.

Description

technical field [0001] The invention relates to the field of semiconductor display, in particular to a method for improving semiconductor lighting to protect human reproduction and eyesight. Background technique [0002] Since the Nobel Prize winner Osamu Nakamura invented the blue LED, LED lamps, LED TVs, and smartphones with LED LCD screens are rapidly becoming popular, and people are exposed to LED light at night (note that it is night!) The time is getting longer and longer. like figure 1 As shown, the current LED lighting and display almost all use white LED as the light source; the white LED spectrum 1 is composed of two main peaks, one is the blue light peak 1A of the white LED, and the other is the yellow light peak 1B of the white LED. Phosphor powder emits, not an independent light source. The composition of this white light spectrum is simple; the brightness of white light can be controlled by controlling the blue LED; this white light method is currently relati...

Claims

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Application Information

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IPC IPC(8): F21K9/90F21Y115/10F21Y113/13
CPCF21K9/90
Inventor 方文卿方恺齐张丽娟杨超普张建立曾平
Owner 方文卿
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