At present, ROHM is committed to the development of “environmental protection devices†that contribute to environmental issues such as “energy saving†and “carbon dioxide emission reductionâ€. It is said that about 13% of Japan's energy consumption is used for lighting. In terms of the strategic issues that should be adopted in the face of global warming, reducing the energy consumed by lighting can be considered as a powerful means of reducing carbon dioxide emissions.
Since a few years ago, people have placed high expectations on energy-efficient and bright “efficient lightingâ€, and manufacturers are actively developing energy-saving lighting products. Among them, in particular, it is considered to be the LED that determines the future of energy-saving lighting.
The so-called LED is a light-emitting diode, which is the first letter of the Light Emitting Diode. Compared with electric bulbs, LEDs consume about one-tenth the power of the former, but have a lifespan of more than 10 times that of the former; they are made of materials that do not contain harmful substances, and are quickly used as the main source of light in the 21st century. Known, it has begun to spread.
Figure 1 White LED PSML1/PSML2 for lighting in high heat dissipation package
The biggest feature of LED is low power consumption and long life. Moreover, the LED light source does not require a glass tube, an inert gas, and mercury used for the fluorescent lamp. It also does not require a transformer or booster, which can save a lot of energy and generate less heat. It is an ideal white light source. If you can use it instead of incandescent bulbs and fluorescent lamps, you can construct a lighting system that is energy efficient, has less waste, and is environmentally friendly. Moreover, because LEDs are small and lightweight, free design is possible, and LED lighting implies the possibility of completely replacing the original lighting fixtures.
Recently, white LEDs have been rapidly developed in terms of high efficiency and high power, and have been used as a high-efficiency light source to replace existing incandescent bulbs and fluorescent lamps.
ROHM began researching LED-related technologies in the 1970s, focusing on the power and whiteness of white LEDs, and on the other hand, while working with LSI development and power module development that are most suitable for driving LEDs. Develop products that are most suitable for LED lighting. Moreover, ROHM is one of the few device manufacturers that are engaged in research and development activities for LED and its LSI for driving circuits. This can effectively utilize both technologies and maximize the characteristics and characteristics of LEDs. Use the light from the LED to create a lighting idea for a specific space. ROHM's LED lighting devices will be on display.
The following is the next generation of lighting devices that are expected to be put into practical use and popularization for the future: LED lighting, introducing ROHM's original technology and the latest development trends.
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