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White LED×シチズン電子 - List of Manufacturers, Suppliers, Companies and Products

White LED Product List

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High brightness white LED

High brightness white LED

Achieves high brightness and a slim package. High-brightness white LED that illuminates subjects and enables shooting in dark places.

We would like to introduce our small chip LEDs (high-brightness white LEDs). We offer a rich lineup including the top-emitting types "CL-194S series" and "CL-A131 series," as well as the side-emitting type "CL-963 series." These products are high-brightness, slim packages suitable for LCD backlight light sources in communication devices. They can be used in combination with light guide plates. 【Features】 ■ High-brightness, slim package ■ Compact, high-quality, high-performance lineup ■ SMD (surface mount) compatible ■ Reflow and soldering capable ■ Lead-free and compliant with RoHS directives ■ Contributes to cost reduction through automation of mounting *For more details, please visit our website or feel free to contact us.

  • switch

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Understanding and Learning about LEDs: 4. What is a High Color Rendering White LED?

Understanding and Learning about LEDs: 4. What is a High Color Rendering White LED?

Developing light that is closer to natural light.

White LEDs are used as the lighting source, but there are several methods to create that white light. One method is to combine red, green, and blue LEDs. This method has good color rendering properties but faces challenges in terms of cost and luminous efficiency. Therefore, a method that combines blue LEDs with yellow phosphors has been used so far, as it allows for relatively easy attainment of high luminous efficiency. However, this method has the drawback that the emitted color is a pseudo-white, making it unsuitable for applications that require high color rendering properties. Additionally, there is a method that creates white light by combining near-ultraviolet LEDs with blue, red, and green phosphors, but this is said to have issues with brightness. In response, Citizen Electronics has adopted a method that uses blue LEDs to excite red and green phosphors. This method serves as a light source for LEDs with high color rendering properties while overcoming challenges related to cost and efficiency.

  • LED lighting

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