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Technology - Ra consistency

JT knows well the requirement for high Ra consistency for the quality lighting and also faces the phenomenon of inconsistency in team of Ra in market. It is a headache of designers and the consumers. For this purpose, JF applies the LED chips at high consistency from the quality chips manufactures. All LED chips are sorted out, sorted and processed in strict and scientific criterion to guarantee the LED chip in consistency in one batch.

When LEDs are manufacture, the most challenging part is producing consistent and precise white color Binning is the process of sorting the white LEDs into groups of similar white colors. The regulation of this process is outlined by the ANSI standars for tolerances of white color Variations to fit within a color temperature group, or bin. The regulation of this process is outlined by the ANSI standards for tolerances of white color Variations to fit within a color temperature group, or bin. Some LED manufacturers have adapted a more stringent process of sorting called micro-bins which allows for much smaller white color variations.

JF applies LEDs that exceed the ANSI binning standards, giving our fitting optimal color matching.

Binning Explanation - When white LEDs are created, whether they be on the warm or cool end of the spectrum, there are always slight inconsistencies with regards to specific color temperatures.

A: The arched black line in the graph at right represents the white color spectrum.

B: These long intersecting lines represent the range, from one end of the line to other, of variation in color each corresponding color temperature.

C: In order to keep the range of each temperature as close to the same color as possible, ANSI created tolerance zones. Only the LEDs that fall into this range are used for that particular color temperature, these are referred to as "bins".

D: As you can see this bin still has plainly visible variations throughout. ANSI tolerance zones are adjacent to account for the challenges around manufacturing LED chips consistently.

E: Once divided into smaller bins, the differences in color are much less, allowing for minimal variation when two or more LEDs used together.

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