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Nichia UV-Free LED Lights Up Museums Across Europe

Nichia Corporation announces that its Optisolis series of packaged LEDs and Chip-on-Board (COB) solutions has been successfully transforming the visitor experience offered by museums and art galleries across Europe where they are being integrated into lighting fixtures to reproduce the vivid tones and finer details of displayed objects.

The Optisolis series accurately mimics natural sunlight without producing any harmful ultraviolet (UV) light. Designed to replace halogen and conventional LED directional lighting applications, the natural color rendering performance delivered by the LED allows visitors to fully appreciate the high fidelity of light surrounding them.

Optisolis enables this unparalleled experience by mimicking the entire spectrum of natural sunlight visible to the naked eye and illumination from incandescent bulbs. The exceptional color rendering index (CRI) value of over 98 at full intensity also delivers R9 red content (a key saturated solid color not measured by CRI) of over 94.

With Optisolis, light is delivered without radiating any of the UV that degrades precious artworks and artifacts; competing LED products typically emit ultraviolet wavelengths at around 405nm.

The LED packages are offered in two variants, NF2L757G-F1 (3000K version) and NF2W757G-F1 (5000K version). Both surface mount variants are housed in a 3 x 3 x 0.65mm package. The 5000K daylight variant has a typical luminous flux of up to 24.1lm at 65mA. Additionally, there are 11 COB part numbers available that offer similarly high color fidelity in 2700K and 6500K options, with the color temperature remaining stable over time, ambient temperature and drive current. These models deliver a luminous flux ranging from 360lm to 3140lm.

Designed primarily for museum and art gallery lighting applications, the series is also ideal for premises where precise color evaluation is necessary, such as printing and painting businesses, as well as in jewelry shops and other retail stores.

Jordan River’ oil painting
The photographs show Johann Heinrich Schönfeld’s ‘Gideon and his Warriors at the Jordan River’ oil painting exhibited in the Zeppelin Museum without using Optisolis (left) and when using the technology (right)

The LED product has been installed for evaluation throughout 2019 at the Kunstmuseum Pablo Picasso Münster, the Ludwig Museum in Koblenz and the Zeppelin Museum in Friedrichshafen in Germany.

portrait painting of Angelika Kauffmann
The photographs below show the portrait painting of Angelika Kauffmann by Johann Heinrich Tischbein exhibited in the Zeppelin Museum without using Optisolis (left) and when using the technology (right)

In addition, Nichia will also be demonstrating the LED solution at The International Council of Museums (ICOM), this year in Kyoto, Japan in September.


Jyoti Gazmer

A Mass Comm. graduate believes strongly in the power of words. A book lover who dreams to own a library some day. An introvert but will become your closest friend if you share mutual feelings about COFFEE. I prefer having more puppies over humans.

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