Opto-Electronics


How Cree's LEDs pleased the Chinese

1 October 2008 Opto-Electronics

LED technology from Cree was used to light up several key venues in Beijing during the recently held Olympic Games. Two of the most notable installations were in the national stadium or ‘Bird’s Nest’ and the national aquatic centre, affectionately known as the ‘Water Cube’.

Not only were the lighting effects visually stunning, they also served as a larger symbol for the ‘greening’ of the global lighting market as epitomised by the move from traditional light bulbs to LEDs, which is gradually gaining momentum.

The Water Cube

The Water Cube is made of 3000 ‘bubbles’, each with the ability to display millions of different colours. During the games, the Water Cube displayed a different colour pattern each evening. These patterns are computer controlled and the Water Cube is programmed to display different coloured designs, including ones inspired by themes including ‘Blooming Flowers’, ‘Rainy Day’ and ‘Night at the Disco’.

Approximately 496 000 Cree XLamp LEDs in red, green and blue illuminate the exterior of the Water Cube. Modules of eight to 16 LEDs are integrated into the steel structure of all four walls and the roof and each module is uniquely designed to focus the light on the individual bubbles.

Inspired by soap bubbles, the Water Cube’s bubbles are made of 100 000 square metres of plastic that was originally developed to provide insulation for aeroplanes. Each of the 3000 bubbles in the Water Cube can resist the weight of a car; a piece of the 0,2 mm thick material can hold up to 300 times its own weight. The Water Cube’s bubbles also trap more heat than glass, reducing total energy requirements by 30%. This is the equivalent of mounting solar panels on the roof.

Subsequent to the completion of the games, the Water Cube is in the process of being converted into a multifunctional facility for sports, culture and recreation, including a café and waterslide.

The Bird’s Nest

The Bird’s Nest exterior has approximately 258 000 Cree XLamp LEDs providing dramatic lighting effects. The colours of these exterior lights consist of white, amber and red.

The original lighting design for the structure called for fluorescent fixtures. After the fluorescents were installed, designers did not like the fixtures’ lighting effect. So, they switched to LEDs for purer, brighter light.

Cree LEDs were also used in two installations inside of the Bird’s Nest: the video screen behind the main stage, and in the LED scroll lighting up the floor during the opening ceremony.

For more information contact Simon Churches, Arrow Altech Distribution, +27 (0)11 923 9600, [email protected], www.arrow.altech.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Converter power modules for 48 V networks
Altron Arrow Power Electronics / Power Management
The economic and quality-of-life benefits of electrification is driving the adoption of HV to 48 V DC-DC conversion across many markets with 48 V power modules becoming more common.

Read more...
How a vision AI platform and the STM32N6 can turn around an 80% failure rate for AI projects
Altron Arrow AI & ML
he vision AI platform, PerCV.ai, could be the secret weapon that enables a company to deploy an AI application when so many others fail.

Read more...
Africa’s future internet could be on overland submarine cables
Opto-Electronics
SEACOM aims to explore an innovative new concept: utilising submarine cable technology to address the longstanding challenges in Africa’s terrestrial infrastructure.

Read more...
Memory for asset tracking
Altron Arrow DSP, Micros & Memory
The Page EEPROM, ST’s latest memory, has been designed for efficient datalogging and fast firmware upload/download in battery-operated devices.

Read more...
Microchip and AVIVA Links collaboration
Altron Arrow News
Microchip and AVIVA Links have achieved groundbreaking ASA-ML interoperability, accelerating the shift to open standards for automotive connectivity.

Read more...
Expanded STM32WL3x line for IoT sensors
Altron Arrow Telecoms, Datacoms, Wireless, IoT
The STM32WL31x and STM32WL30x are more tailored versions of the STM32WL33x for designers who wish to focus on specific features, while lowering their bill of materials.

Read more...
Ultra-low jitter clock buffers
Altron Arrow Telecoms, Datacoms, Wireless, IoT
New SKY53510/80/40 family of clock fanout buffers from Skyworks are purpose-built for data centres, wireless networks, and PCIe Gen 7 applications.

Read more...
Ultra-low power MEMS accelerometer
Altron Arrow Analogue, Mixed Signal, LSI
Analog Devices’ ADXL366 is an ultra-low power, 3-axis MEMS accelerometer that consumes only 0,96 µA at a 100 Hz output data rate and 191 nA when in motion-triggered wake-up mode.

Read more...
Converting high voltages without a transformer
Altron Arrow Editor's Choice Power Electronics / Power Management
With appropriate power converter ICs, such as the LTC7897 from Analog Devices, many applications can be suitably powered without having to use complex and cost-intensive transformers.

Read more...
MCU platform for battery-powered devices
Altron Arrow DSP, Micros & Memory
The MCX W23 is a new dedicated wireless MCU platform from NXP for battery-powered sensing devices.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved