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High Efficiency and Rendered Colour Using LED Solid State Lighting

Objective

"Lighting accounts for 30% of all electricity usage in offices, homes, transport systems and retail. It is expected to be revolutionised by the widespread introduction of LED solid state technology. However, LED technology has some major problems to overcome on the delivered efficiency of multi-LED lights, cost, and the quality of the light colour produced.

HERCULES will produce solutions for LED lighting for a range of applications. It will build on a successfully demonstrated concept that combines the light from different LED sources to produce near perfect colour rendition at colour temperatures as low as 2500K. HERCULES will provide the normal benefits of LED lighting – high electrical energy to light conversion efficiency (reducing energy consumption), instant start-up and efficient dimmability, but will also allow tuneable colour rendering for applications such as food retailing.

It is essential that light sources produce high quality colour rendition, which has proved critical to the health and productivity of workers. High efficiency LEDs have very poor colour rendering and current approaches use multiple phosphors on each LED to generate a poor typically “blue rich” approximation to natural light. These phosphors can seriously reduce the efficiency of the LED, so more LEDs are required to achieve the light ouput. In a compact light source this has the effect of increasing the temperature of the LEDs, which has a very negative feedback as their efficiency decreases rapidly with temperature. The HERCULES solution will overcome this serious limitation.

The key developments in this project will be:
• Characterisation and selection of suitable high efficiency LEDs
• Novel electronic driver design
• Optical design for several form factors, especially to de-image LEDs
• Low cost injection moulding tool making technique for optical finish
• Precision injection moulding of optical elements
• Novel luminaire design for indoor/outdoor/specialist applications"

Field of science

  • /social sciences/social and economic geography/transport
  • /social sciences/economics and business/economics/production economics/productivity

Call for proposal

FP7-SME-2011
See other projects for this call

Funding Scheme

BSG-SME - Research for SMEs

Coordinator

BRANDON MEDICAL COMPANY LIMITED
Address
Holme Well Road Middleton
LS10 4TQ Leeds
United Kingdom
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
EU contribution
€ 488 896,53
Administrative Contact
Graeme Hall (Mr.)

Participants (6)

SYNERGY MEDICAL SYSTEMS LTD
Ireland
EU contribution
€ 88 133,26
Address
Quayside Business Park 2Nd Floor
NA Dundalk Louth
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Maurice Quail (Mr.)
DISENO Y TECNOLOGIA DEL MOLDE CUMSA SL
Spain
EU contribution
€ 192 335,20
Address
Juan Ramon Jimenez 8
08960 Sant Just Desvern
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Andy Morland (Mr.)
TWI LIMITED
United Kingdom
EU contribution
€ 75 267
Address
Granta Park Great Abington
CB21 6AL Cambridge
Activity type
Research Organisations
Administrative Contact
Amanda Walters (Ms.)
BRADFORD TEACHING HOSPITALS NHS FOUNDATION TRUST
United Kingdom
EU contribution
€ 28 236
Address
Duckworth Lane
BD9 6RJ Bradford
Activity type
Research Organisations
Administrative Contact
Ian Hinitt (Mr.)
SAGENTIA LIMITED
United Kingdom
EU contribution
€ 85 091
Address
Harston Mill
CB22 7GG Harston, Cambridge
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Euan Morrison (Dr.)
PR TARGET SRL

Participation ended

Italy
EU contribution
€ 83 741
Address
Via Principe Tommaso 49
10125 Villarbasse
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Pierluigi Bacchiega (Mr.)