A single-pixel wireless contact lens display
| Autor: | Harri Lipsanen, Yu-Te Liao, Sami Suihkonen, Ramin Mirjalili, Muhammad Ali, Markku Sopanen, Andrew Lingley, M. Klonner, Brian Otis, T. Shen, Babak A. Parviz |
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| Rok vydání: | 2011 |
| Předmět: |
Fabrication
Materials science business.industry Mechanical Engineering Integrated circuit Chip Electronic Optical and Magnetic Materials law.invention Contact lens Optics Mechanics of Materials law Sapphire Optoelectronics Electrical and Electronic Engineering Antenna (radio) business Energy harvesting Diode |
| Zdroj: | Journal of Micromechanics and Microengineering. 21:125014 |
| ISSN: | 1361-6439 0960-1317 |
| DOI: | 10.1088/0960-1317/21/12/125014 |
| Popis: | We 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. |
| Databáze: | OpenAIRE |
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