Color appearance of color chips under light‐emitting diodes lamps part II: Hue shift direction

Abstract

Our previous experiment showed that the color appearance of color chips changes depending on the color of illumination. In this article, we continued to analyze the previous data of 23 color chips under six vivid colored illuminations (red, yellow, green, cyan, blue, and magenta) that were assessed by 100 subjects. We found that there were usually two directions of shifted color under vivid illumination. For example, color chips would change to either a dark blue or orange direction under vivid red illumination depending on the color of the color chips. We also found that there is a similar mechanism behind the chromatic adaptation in relation to the complementary color.

Enhanced Cyan Photoluminescence and Stability of CsPbBr3 Quantum Dots Via Surface Engineering for White Light‐Emitting Diodes

“…However, this method has several drawbacks because red‐light components are not present, such as low color rendering index (CRI, Ra < 75), blue light hazard and the “cyan gap” in the 470–520 nm range. [ 6–14 ] In the meantime, “full‐visible‐spectrum lighting” has been proposed to obtain a high‐CRI light source that can mimic natural sunlight. [ 15 ] There, the development of fluorescent materials emitting cyan light can fill in the blue‐green cavity in the spectrum of traditional phosphor‐converted LEDs with improved CRI value.…”