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The degree to which the light source appears to the color of the object itself is called color rendering, which is the degree of color fidelity; the color rendering of the light source is indicated by the color rendering index, which indicates that the object is illuminated under the light of the reference light (sunlight). The deviation of the color can more fully reflect the color characteristics of the light source. Light sources with high color rendering perform better for color, and the color we see is close to natural color. Light sources with low color rendering have poor color performance, and the color deviation we see is also large. The International Commission on Illumination CIE sets the color rendering index of the sun to 100, and the color rendering index of each type of light source is different, such as: high-pressure sodium lamp color rendering index Ra=23, fluorescent tube color rendering index Ra=60~90, currently on the market The color rendering index of the LED is RA≤83.
Application of different color rendering index sources:
Index ( Ra )
Grade color rendering general application
90-100
1A
Excellent place where color contrast is required
80-89
1B
a place where color is judged correctly
60-79
2
Common places where moderate color rendering is required
40-59
3
Low requirements for color rendering, less chromatic aberration
20-39
4
Poor place with no specific requirements for color rendering
The photoelectric parameters of Ruifeng Optoelectronics' high color rendering products are as follows:
Product
IV (mcd)
IF=20mA
VF
IF=20mA
CCT(K)
Ra
IF max (mA)
WNRA30DS-EE
1000
3.2V
4800K
95
30
The figure below is the spectrum:
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1
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