A R Lingley et al 2011 J. Micromech. Microeng. 21 125014 doi:10.1088/0960-1317/21/12/125014
A single-pixel wireless contact lens display
IOPselectA R Lingley1, M Ali2, Y Liao1, R Mirjalili1, M Klonner2, M Sopanen2, S Suihkonen2, T Shen3, B P Otis1, H Lipsanen2 and B A Parviz1
Show affiliationsWe present the design, construction and in vivo rabbit testing of a wirelessly powered contact lens display. The display consists of an antenna, a 500 × 500 µm2 silicon power harvesting and radio integrated circuit, metal interconnects, insulation layers and a 750 × 750 µm2 transparent sapphire chip containing a custom-designed micro-light emitting diode with peak emission at 475 nm, all integrated onto a contact lens. The display can be powered wirelessly from ~1 m in free space and ~2 cm in vivo on a rabbit. The display was tested on live, anesthetized rabbits with no observed adverse effect. In order to extend display capabilities, design and fabrication of micro-Fresnel lenses on a contact lens are presented to move toward a multipixel display that can be worn in the form of a contact lens. Contact lenses with integrated micro-Fresnel lenses were also tested on live rabbits and showed no adverse effect.
- PACS
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85.40.Ls Metallization, contacts, interconnects; device isolation
- Subjects
- Dates
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Issue 12 (December 2011)
Received 9 June 2011, in final form 19 September 2011
Published 22 November 2011
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A single-pixel wireless contact lens display
A R Lingley et al 2011 J. Micromech. Microeng. 21 125014
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