Details of Grant 

EPSRC Reference:	GR/L94505/01
Title:	MONOLITHIC MICROLENSES TO MAXIMISE THE OPTICAL COUPLING EFFICIENCY BETWEEN LETFELS AND OPTIC
Principal Investigator:	Stevens, Professor R
Other Investigators:	Cranton, Professor WM Thomas, Professor C
Researcher Co-Investigators:
Project Partners:	Avimo Ltd Pre Nexus Migration QinetiQ Qudos Technolgy Ltd Scanwel Ltd V L S I Vision Ltd
Department:	Sch of Engineering
Organisation:	Nottingham Trent University
Scheme:	Standard Research (Pre-FEC)
Starts:	01 February 1998	Ends:	30 April 2001	Value (£):	54,583
EPSRC Research Topic Classifications:	Displays
EPSRC Industrial Sector Classifications:	No relevance to Underpinning Sectors
Related Grants:
Panel History:
Summary on Grant Application Form
Low cost, light weight miniature head mounted displays systems require application specific fixed legend emissive displays, with high efficiency for open ocular, portable applications, such as Scuba diving, hand-gliding and other military, industrial and leisure applications. The addition of microlenses over LETFEL apertures will enhance the radiometric coupling efficiency to system optics, which will enhance usability and performance. Initial modelling and fabrication of test devices will define the most efficient aperture for coupling the lateral light to the monolithic microlenses. The performance of LETFEL devices with Greyscale and reflowed microlenses will be compared by modelling and measured system performance. Characterisation of these rugged devices will include, angular divergence, control of beam trajectory, device lifetime and efficiency.
Key Findings
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Organisation Website:	http://www.ntu.ac.uk