How to Choose the Most Suitable Eye-Care Lamps?
These 12 Key Elements of Light Sources You Must Get!
01 Eye protection spectrogram
Sunlight has an extremely wide continuous spectrum, and the wavelength range of visible light is generally between 380nm-760nm. The visible light spectrum of LED lamps is infinitely close to sunlight, with good spectral continuity and low loss rate. The color rendering index for R1-R8 should be above 95, and for R9 to R15, it should be above 90. The higher the overlap with the solar spectrum, the more beneficial it is for vision and physical and mental health. The third generation spectrum of Moon Shadow Eye Protection is 430-630mm in the visible light band, with 97% being infinitely close to sunlight and excellent spectral continuity. The beneficial sky blue light is increased by 15%, and the harmful blue light peak is reduced by 12%. CQS ≥ 98, Ra ≥ 98.
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02 Average illuminance Lux
It takes the entire illuminated surface as the object and calculates the average illuminance on the illuminated surface by dividing the luminous flux obtained by the illuminated surface area. The national classroom lighting standard requires a desk illumination of ≥ 300Lu IX. Moon Shadow Eye Care Children's Thread products all meet the national standard eye care requirements.
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03 Uniformity of illumination
It refers to the uniformity of light brightness distribution. The closer the value is to 1, the more even the lighting is and the more comfortable it is for the eyes. The national classroom lighting standard requires a desk illumination uniformity of ≥ 07.
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05 Light Color Quality CQS
The National Institute of Standards and Technology (NST) of the United States formulates standards for the quality of light environment (light color quality value). The closer CQS is to 100, the higher the quality of the light source.
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06 Color rendering index CR (Ra)
It is one of the indicators used by the International Commission on Lighting CE to evaluate the color quality of light sources. The closer Ra is to 100, the better the color quality of the light source. The national classroom lighting standard recommends Ra ≥ 80. The moon shadow eye protection lighting fixtures can meet the national standard eye protection requirements.
07 Color Realism Rf
It refers to the degree of similarity between each standard color under the illumination of the test light source and the reference light source. The range of Rf values is 1-100, and the larger the value, the higher the realism of the light source color.
*TM30: The data is from the Moon Shadow Optics Laboratory, with a normal testing error of ± 3. The adjustable color temperature plate is tested with a minimum color temperature of 2700K and a maximum color temperature of 4000K.
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08 Flash Flicker
The light source undergoes repeated changes with a certain frequency and periodicity over time. Excessive flicker can lead to eye fatigue, eye soreness, migraines, and difficulty concentrating.
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09 Color saturation Rg
It refers to the change in saturation of each standard color compared to the reference light source under the test light source. The range of Rg values is 80-16100, indicating the same saturation. The higher the saturation, the brighter the color.
10 Blue light
The 400-460nm shortwave blue light has the highest energy and can penetrate the lens directly to the retina. Excessive harmful blue light can cause eye fatigue, decreased vision, damage, and inhibit the secretion of melatonin, affecting sleep quality, and so on.
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11 day night activity factor CAF
The day night activity factor is a dynamic value that changes over time. It is composed of two chemical substances, melatonin and adenosine. Melatonin is a substance secreted by the pineal gland of the brain that can promote sleep, calm and calm the mind. High concentrations of adenosine, on the other hand, create sleep stress by reducing the volume of wakefulness promoting areas in the brain and increasing the proportion of sleep inducing areas. The balance between these two factors determines when people want to sleep and when they want to wake up.
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12 Black vision rate MR
A light measurement used to quantify the stimulus level of a light source's response to melanopsin light. The MR value determines the diurnal effect of the light source, with lower MR values often relaxing and higher MR values often exciting.
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Daily Exposure to Different Light LevelsComparison of Axial Length Growth Over 18 Months
How to determine whether artificial light sources are eye friendly? Measuring More Scientifically with Experimental Data
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Cultivating an Active Eye Care AttitudeFocusing on Lifelong Eye Health
Different age groups have different focuses on eye health, especially children. Establish a vision health management file from a young age, regularly check your vision health, and each person is the first person in charge of their vision.
Inhibition of Excessive Axial Length GrowthPrevention of Myopia
The most important monitoring indicator for the development of myopia is the eye axis. The faster the increase in axial length, the faster the development of myopia. So the axis of the eye is a very important content in refractive records—— From Professor Wang Ningli's quote from the "Eye Health" special session of the "2022 Two Sessions Health Policy" live broadcast series.
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Homelist eye-care lamps are specifically designed for eye protection.
The third generation of Homelist Eye Protection has a visible light harmonic spectrum of 430-630mm, with 97% of the sunlight being infinitely close and excellent continuity. Children can also experience a sunny eye protection experience at home.
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Table of Axial Length Development at Different Age Stages
The standard value of the eye axis is 24mm, and it generally stops growing at the age of 20 after complete development. Research shows that for every mm increase in axial length, myopia increases by 300 degrees. The axial length of myopic patients is greater than 24mm and will continue to increase with improper eye use. If the axial length of the eye increases beyond the limit, it can cause retinal thinning, rupture, detachment, and even loss of vision.
