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December 24, 2019

Toyoda Gosei's HYPERSUNLIGHT LEDs Used at New Meiji Jingu Museum

Kiyosu, Japan, December 24, 2019: Toyoda Gosei Co., Ltd.’s HYPERSUNLIGHT LEDs have been selected for use in the new Meiji Jingu Museum in Tokyo, which opened on October 26, 2019.1 These LEDs are used to beautifully illuminate the exhibits that are closely related to the Emperor Meiji and Empress Shoken.

Compared with conventional LEDs, HYPERSUNLIGHT emits light that is closer to natural sunlight. This is achieved by combining red, green and blue (primary colors) phosphors with purple LEDs. HYPERSUNLIGHT also emits almost no ultraviolet light, which is a cause of color fading. These features make HYPERSUNLIGHT ideal for exhibit, product displays, and factory inspection processes. These LEDs are also promising for use in a wide range of other settings, providing light that contributes to health and comfort in schools, offices and elsewhere2.

Toyoda Gosei will continue to develop new products that contribute to making life richer.

1 The Museum was opened as a part of a project commemorating the 100th anniversary of the enshrinement of the Emperor and Empress

2 The benefits of HYPERSUNLIGHT have been shown in research. In a joint study with Nagoya Institute of Technology using the Uchida-Kraepelin test, which indicates efficiency in performing a simple task, subjects’ responses increased 5.4% with HYPERSUNLIGHT compared with conventional LEDs. In a joint study with Tokyo Denki University, the rise of beta brain waves, which increase when stress is felt, was inhibited 60% with HYPERSUNLIGHT.

Difference between HYPERSUNLIGHT and conventional LEDs

Table can be scrolled left and right

Light sourceSunlightHYPERSUNLIGHTConventional LED
Color components of light
Color fidelity (Rf) 100 97 73
Vividness (Rg) 100 100 91

Treasures of the Meiji Jingu Museum



(Emperor Meiji and Empress Shoken rode in this carriage on the day of the Meiji Constitution promulgation ceremony in 1889)



(Ceremonial court dress worn by Empress Shoken)