Panasonic uses the key technology of high-efficiency LED lighting and the company's exclusive brightness index Feu to achieve the optimal configuration of the space, which can achieve energy-saving effect of about 30%, enabling the introduction of energy-saving LED lighting at low cost. Reducing carbon dioxide emissions can be balanced. This is one of the results of the project of the Ministry of the Environment's Global Warming Measures in cooperation with Osaka Prefecture.
In order to improve the energy-saving effect of LED lighting fixtures, Matsushita Electric Co., Ltd. has developed a key technology that can reduce the loss of blue LEDs when they emit white light through phosphors and reduce the loss of power circuits.
The problem of heat loss for the main loss associated with red and green phosphors (lower efficiency due to temperature rise of phosphor) and backscattering loss (light cannot be effectively removed due to light blocking or absorption) is reduced to approximately In the original half, the conversion efficiency of the phosphor portion was about 80%, which was about 90% higher.
The company also developed high-frequency drive and new circuit mode, so that the power supply can be miniaturized (about half of the original), the conversion efficiency of the power circuit components is about 90%, and the loss is reduced to about 1/3. In terms of luminaires alone, energy efficiency is increased by about 10% compared to the company's most efficient LED lighting fixtures (LED150 Downlight).
In addition, in order to make the LED lighting fixtures comfortable and efficient in the actual lighting space, the company uses Feu to conduct field verification at some facilities in Osaka to accumulate numerous lighting data and measure the brightness required by various spaces. Degree of feeling, obtained a large number of LED lighting fixture simulation test data. The results show that the flexible use of LED-specific light distribution characteristics, coupled with the study of wall light distribution, can save the same brightness by saving up to 20% of power and reducing the number of LED lighting fixtures.
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