A method for quantitative analysis of blue light hazard and rhythmic effect based on light source color temperature

A technology of blue light hazards and quantitative analysis, applied in the direction of testing optical performance, etc., can solve problems such as complex mathematical operations, not given blue light, difficulty, etc.
CN109916599BActive Publication Date: 2020-07-07广州市华丰照明科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
广州市华丰照明科技有限公司
Publication Date
2020-07-07

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Abstract

The invention discloses a method for quantitatively analyzing blue light hazard and rhythm effect according to the color temperature of a light source. Firstly, a common and easily-obtained color temperature value of the light source is obtained; next, according to KB=1.48538*10<-7>*Tc-1.24574*10<-4>, KC=6.81334*10<-4>*Tc-0.50954, a blue light hazard factor and a rhythm factor of the tested lightsource are respectively calculated; and whether the bio-safety of light of the test light source is qualified or not is judged according to the condition that blue light hazard factor and the rhythm factor exceeding common white candle light by 10% are taken as safety thresholds (blue light hazard factor K<B-candle>=2.36689*10<-4>W / ml and the rhythm factor K<C-candle>=1.359), when the bio-safety is unqualified, the percentage exceeding the safety threshold is given. The simplified calculation method for the blue light hazard factor and the rhythm factor of the light source and the safety threshold of the two factors are given, and the method is simple in operation and clear in physical significance.
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Description

Technical field

[0001] The invention relates to the field of photobiological safety, and in particular to a method for quantitatively analyzing blue light hazards and rhythmic effects according to the color temperature of a light source. Background technique

[0002] Blue light hazard refers to the damage to the retina caused by photochemical action of human eyes under the irradiation of blue light in the 400-500nm band. Rhythmic effect refers to the phenomenon in which the blue light component of visible light inhibits the secretion of melatonin from the pineal gland and stimulates the secretion of cortisol from the adrenal glands, thereby changing the human body's circadian rhythm and regulating alertness and biological clock. It is also called a non-visual effect.

[0003] At present, many international authorities have regulated or paid attention to the blue light hazards and rhythmic effects of artificial lighting. For example: CIE S 009 / E:2002 and IEC / TR 62778 respectively g...

Claims

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