Take jewelry lighting as an example to interpret BIN area and special color points

Abstract: in the LED industry, according to the standard of ANSI standard, the color tolerance range of X/Y axis is divided into the color block, also known as the BIN area. The BIN area is the only reference that can be localized to specific light colors.
Before we talk about how important special color points are, let's take jewelry lighting as an example to see what the BIN area is. What is BIN area?
In the LED industry, according to the standard color temperature of ANSI, it is divided into the color block and BIN area according to the color tolerance range of X/Y axis. The BIN area is the only reference that can be localized to specific light colors.

The above image is based on the color temperature segment of the LED normal white light region, and the BIN area is divided into the color tolerance of X/Y axis points.
Each BIN area has different light color properties. The color of light generally follows the color trend of chromatogram. The central black body line runs through all white light segments. The black body line shows: the right upper light color is yellow, the right lower slice orange, the left upper green green, the left lower blue violet. The jewelry display effect of different color is different.
Jewelry lighting design as an important link in interior design, the quality of lighting effects directly affects the effect of space. The jewelry store is only for a long time only to pursue the light to be enough "bright", and the simple to improve the illumination is the wrong way, in jewelry and other high-end luxury goods display is not desirable. A good light environment by light color, light, space, color rendering, stereo feeling, anti glare, stability, etc. The influence of various factors and restriction, especially jewelry is very tall to the requirement of light environment, and the main factors influencing the luminous environment is light color, light color.

The jewelry itself is not glowing, except for some gems with fluorescence or phosphor effects. So the businessman often chooses artificial lamplight to undertake illume, different jewelry is opposite light color has different requirement, accordingly want to match reasonable light color according to the type of jewelry.

Color temperature table

Everyone in the line knows that there are four files in the popular color temperature section for jewelry lighting. Warm white, neutral, white and cold white. However, if you have noticed the same color temperature, the lighting effects of jewelry stores are different. Why use the same two jewelry shop, the same color temperature, a fresh and dazzing jewellery, luxurious atmosphere, let a person have a strong desire to buy jewelry and the other is dead, no reiki, lead to customer don't have any purchase desire?

Use cold white light for overall lighting, highlight diamond's nobility
It is the same color temperature that causes all of this, and different BIN areas. There are many kinds of jewelry, the color of each jewelry is unique, the product attribute is unique, and the demand for light color is unique. Each kind of jewelry is different according to material attribute, need special, special light color collocation, ability achieves gem best lighting effect.
This result is what we call the bias of jewelry lighting, and the BIN area of this kind of color light is called the special color point of jewelry lighting.
The significance of special color points
The special color point is under the Black Body radiation curve below the color point, the English Blow Black Body Line, or "BBBL".
Lighting Resarch Center also calls the White Body Line, or White Body Line, at the RPI lighting research Center (LRC).
According to LRC's research, the human eye appears to be "white" light, not in the black body curve, and they overlap only 4000K, with the white body curve above 4000K. Below 4000K, the white body curve is below. It is worth noting that this white body line is different from the black body line of chromatogram and color thermometer in the traditional sense. Special color (Sensus) light source, slight color change brings the maximum effect: light color moves to "White Body Line".

Note: it is not the "Black Body Line" of the BBL, which is the White Body Line of "White Body Line".
In the past, the lighting industry generally used the traditional CRI color index as the measure of the quality of the light source. However, CRI only measures the color color of the light source, and has no direct correlation with human visual perception. Since 2002, the lighting rensselaer polytechnic university research center (LRC England in solid state lighting technology alliance (ASSIST) fund under the support of further study of the colour of light quality, and finally successfully invented the Class A chromatography (Class A Color). Through long-term research, scientists have successfully cracked the principle that the human brain receives a white light source. On the basis of the human brain color and tonal judgment principle of the "best of color" white light source, LRC England and ASSIST to develop and release, the Class A chromatography, based on human perception redefines the high quality of light color. With A much broader chromatogram and saturation, the Class A chromatography performs well in brightness and naturalness, and can delineate the "whitest" white light in A comfortable range.
LRC and ASSIST used psychophysical experiments to understand the preferences of white light sources observed by the observers, and found that they liked the perception of the color of objects in the white or light color of the light source. LRC England lighting research center, A senior fellow at the Jean Paul Freyssinier pointed out: "we use A very comprehensive samples (including samples) in Asia to Class A chromatography test, adjust its spectrum for many times, in order to ensure that it is tonal combinations of naturalness and brightness makes people feel cheerful. Seventy-five percent of the participants said that the light source with Class A chromatography had the best color and saturation, A consistent lighting that would never disappoint.
The experimental results are compared with LRC's findings:

The same pearl necklace, different lighting, do you think the right necklace is more full and shiny? Standard color dot BBL and special color dot BBBL are white and color is very different. The white body line below the black-body radiation curve: the white is more pure and clear and the color is more beautiful and bright. Jewelry lighting effect, gold more noble atmosphere. The white diamond is more pure. Colorful diamond, jade more dazzling and dazzling. Platinum, silver jewelry is more luxurious and noble.
Source: Aladdin lighting network

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