Citizen develops Citiled Vivid Series packaged LEDs to enhance color in retail and museum lighting

Oct. 26, 2016
Citizen Electronics Co., Ltd. (Head Office: Fujiyoshida City, Yamanashi Prefecture. President: Yoshihiro Gohta) has developed LEDs for lighting, ‘Citiled Vivid Series Brilliant Type’ and ‘Citiled Vivid Series Natural Type’ as new in the ‘Citiled Vivid Series.’ The Citiled Vivid Series Brilliant Type, the chroma of which increases to twice that of our current model, illuminates an object more vividly. The Citiled Vivid Series Natural Type also enhances vividness while the color of an illuminated object looks natural. The packaged LEDs will be exhibited during the ‘Hong Kong International Lighting Fair 2016’ starting on October 27, 2016.

Two types of high chromatic packaged LEDs for lighting, ‘Citiled Vivid Series’

■ Developed products:
1. Citiled Vivid Series Brilliant Type (25 models)
2. Citiled Vivid Series Natural Type (25 models)

■ Mass production is scheduled to start in the spring of 2017

■ Background of development
With the widespread availability of LEDs, not only are there needs for brightness and efficacy, but applications in which light is used for dramatic impact to make an illuminated object look more beautiful have been expanding and the demand for ‘quality of light’ has diversified more and more. In response to these needs for lighting, Citizen Electronics has developed high chromatic LEDs, the Citiled Vivid Series, in order to make the original colors of the object look more vivid through enhancement of chroma. As our newly developed products will be available in two lineups, which pursue high chroma, customers can choose depending on their purpose and needs.

1. Citiled Vivid Series Brilliant Type
- illuminate an object more vividly
- most suitable for spotlights such as for display
2. Citiled Vivid Series Natural Type
- enhance vividness while an object looks natural
- most suitable for space lighting

These packaged LEDs are the most suitable for store lighting, museums and picture studios in which color vividness is emphasized, along with lighting for educational facilities such as schools and libraries as a result of the contrast between brightness and darkness improving and this making letters on paper easier to read. Citizen Electronics has been creating a new value of light as a pioneer of the COB-type LED.

■ Product features
1. Citiled Vivid Series Brilliant Type
When chroma of light increases, colors of an object look beautiful. As the Citiled Vivid Series has positive values of C*ab that indicates chroma for all colors compared to general LED lighting, it can bring out the original colors of an object more vividly.
The newly developed Brilliant type has increased vividness twofold by adjusting the material composition of phosphors, etc. It has achieved increase in the chroma of red and green which was conventionally low while maintaining the entire balance. As it is possible to express more subtle beauty of colors, this type is the most suitable for spot lighting for store displays and museums, etc.

2. Citiled Vivid Series Natural Type
This product emphasizes vividness of an illuminated object by retaining the C*ab value (chroma) of the current Citiled Vivid Series, and makes the object look natural by adjusting the chroma balance.

■ Common features between two types
Citizen Electronics has adopted the Chip on Aluminum technique (patented by Citizen Electronics), which is a high heat dissipation technique where LED dice are directly mounted on an aluminum board. In addition, as these products have the same package size as the current COB Series and Citiled Vivid Series, it is possible to promote efficiency of luminaire design.

■ Main specifications
(common among Brilliant Type and Natural Type of Citiled Vivid Series)

Size (mm): 13.5×13.5×1.4
Die configuration: 1204
Color variation: 2,700K, 3,000K, 3,500K, 4,000K, 5,000K

Size (mm): 19.0×19.0×1.4
Die configuration: 1208
Color variation: 2,700K, 3,000K, 3,500K, 4,000K, 5,000K

Size (mm): 28.0×28.0×1.4
Die configuration: 1818
Color variation: 2,700K, 3,000K, 3,500K, 4,000K, 5,000K


-North America:
Dave Lomas, +1-847-619-6700
Paulo Pacheco, +1-847-619-6700
-Europe: Lennard Kaehler, +49-69-2992-4823