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2015 Research Highlights, Development of the world’s first standard LED covering the full visible light

Points of Interest

AIST has developed standard LED with sufficient light intensity over almost all wavelengths of visible light, as standard light source suitable for accurate measurement of LED lighting. *

Figure of The newly developed LED
The newly developed LED

Solid state lighting (SSL) such as LED lighting and organic light-emitting diode (OLED) lighting have an infinite variety of color and light intensity because their spectrums are rich in variety. In order to evaluate the performance of such lighting accurately, it is necessary to prepare standard light sources with determined accurate characteristics, and to measure the light intensity in each wavelength accurately while comparing the lighting with the standard light sources. Having developed standard LED which have sufficient light intensity in all wavelengths of visible light (380 nm – 780 nm) corresponding to the characteristic of emitting light only to a front direction specific to SSL, it is expected that this will contribute to accelerating product development and improving performance.

*Jointly developed with the Nichia Corporation, which has started sales of the standard LED.

Figure of Example spectra of the developed standard LED (red line) and a typical white LED (blue dotted line)
Example spectra of the developed standard LED (red line) and a typical white LED (blue dotted line)

Links

Contact

YYuri Nakazawa, Researcher   Kazuki Niwa, Senior Researcher   Kenji Goudo, Senior Researcher  
Research Institute for Physical Measurement

Yuri Nakazawa, Researcher (left), Kazuki Niwa, Senior Researcher (center), Kenji Goudo, Senior Researcher (right)


AIST Tsukuba Central 3, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8563, Japan
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