CIE LED SMDs

Yujileds^® achieved using only one single LED to accurately simulate CIE illuminant for the first time in the world.

With the iteration of LED technology, especially the technological updating of Yujileds^® phosphors. As a leader in LED spectroscopy engineering, we successfully simulated and commercialized CIE illuminators using a single LED for the first time in the world. Traditional light sources, such as fluorescent tubes, have not been able to achieve accurate simulation at the spectral level on simulating CIE illuminants, but Yujileds has successfully achieved accurate simulation by using our precise control of the LED spectrum.

The design of using only one single LED offers unbeatable advantages

Before we used a single LED to simulate CIE illuminant, multiple LEDs were used on the market. However, the single-LED design offers unbeatable advantages.

The lighting emitting surface is smaller.

There are differences in the reflective position between different LEDs, which brings some challenges to optical design, and the illumination uniformity is difficult to meet international standards, such as ISO 3664:2009, in some special scenarios.

The design of the circuit is easier.

Compared to the semiconductor red and deep red LEDs which are typically at 1.7V – 2.1V, when mixing with the 3V blue or green LEDs and the 3.5V violet or UVA LEDs, the electrical circuit design has to be organized carefully and more components have to be involved with more complexities. Yujileds^® CIE series product uses a single LED to achieve the spectrum of the above LED combinations, making it much easier to design circuits.