Improving the artificial lighting as close to the sunlight is the eternal pursuit for the top LED manufacturers. However, the artificial lighting gets far away from the naturalness after the incandescent and halogen because the illumination principles of the later artificial lights are far away from the blackbody radiation, including LED.
The sun essentially provides complete and homogenous spectral radiation in the visual wavelengths, while an LED is always combined by the blue or purple semiconductor die with blue/green/amber/red phosphors, in consequence, it is visualized to observe that from an LED spectrum, peaks and gaps always exist because of the respective characteristics of the die and phosphors, which can not be avoided generally.
The AP series LED comes with three standard spectra of 2700K, 5000K and 6500K corresponding to the CIE illuminants of A, D50 and D65 respectively. Compared to these standards, the AP spectra achieves 98% similarity within one compact package which is unprecedented for all of LEDs in the market.
Standard illuminants always present completely uniform spectral power distributions, where a recent artificial light source can never simulate to a promising degree, especially for LED considering its special illuminating principle. With the latest technology of Yujileds phosphor and package, it is finally available to achieve the homogeneous spectra, in AP series LED spectra, there is no longer strong peaks or obvious gaps like a regular LED.
The TM-30 is a comprehensive and most convincing method for color rendition, and it provides more metrics as the reference including color fidelity and gamut from 99 evaluation samples, which means, compared to conventional metrics, the TM-30 will disclose more details to present the truest performance on color rendition.
The AP series TM30 measurements are the most intuitive testifications. Giving the Rf 98, Rg 101 and all 99 color fidelities above 95, Yujileds AP series technology wins the highest level on the color rendition, not only for individual metrics but is absolutely stable quality.
Undoubtedly, the AP series performance under CRI metric system is equally top level. Achieving R1-R15 all above 90, the CRI score is up to 99 and is stable on different color temperatures of 2700K, 5000K and 6500K.
Halogen and daylight are the most frequently used color temperatures in the broadcasting lighting environments, with the superb homogeneous spectrum and measure by the TLCI metric, the AP 2700K and 6500K are not compromised in the quality to ensure the correct colors in the cameras.
Combining with the AP series 2700K to 6500K, the dynamic spectra can mimic the most similarity from sunrise to sunset, including the middle of a day. It has the most ideal performance for human’s circadian rhythm due to its 98% similarity to the sunlight spectrum.
With the real full-spectrum sense, the AP series LED helps with boosting the growth quality. With extra UV (400nm), deep red (660nm) and near-infrared (730nm), the AP spectrum provides a perfect white light base without any deficiency compared to a standard LED solution.
The AP series LED brings the unique feature of excellent color rendition both for human eyes and the camera. The homogenous spectra make non-compromise on rendering every color. In the latest TM-30 metric, the Rf reaches 98 and for all of the 99 color samples, it scores an average 95+.