Stanley Electric develops UV LEDs in glass packages
Stanley Electric has developed an ultraviolet LED using a glass package. Due to the use of an inorganic material as a packaging material, the performance degradation caused by ultraviolet rays is small, and the life of the module is prolonged compared with when a resin material is used. Stanley Electric hopes to exploit the use of LEDs in harsh environments (such as high temperatures and humidity). The appearance is to install an ultraviolet LED chip on the filament portion of the bulb, and then add the shape of the glass cover.
According to Stanley Electric, the inside of the glass cover, that is, the ultraviolet LED chip is in a vacuum state. The emission wavelength was 375 nm. The forward current is 20 mA and the forward voltage is 3.3V. The optical output power is 6mW. Stanley Electric said that although it is still in the development stage, it has introduced technology to customers. At the time of the demonstration, in addition to the prototypes on which the UV LED chips were mounted, prototypes for mounting red, green and blue LED chips were also exhibited.
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