---------- Forwarded message ----------
From: Natasha Newson <nnewson@stanford.edu>
Date: Tue, Oct 19, 2010 at 1:37 PM
Subject: EE PhD Oral Examination - Rostam Dinyari, Thursday, October 21, 2010; 3:45 pm
To: ee-students@mailman.stanford.edu
STANFORD UNIVERSITY ORAL DEFENSE - DEPARTMENT OF ELECTRICAL ENGINEERING
TITLE: A CURVABLE SILICON RETINAL IMPLANT
Student: Rostam Dinyari
Adviser: Peter Peumans
Date: Thu, Oct 21, 2010
Time: 3:45 PM (Refreshments served at 3:30 PM)
Location: Allen-X 101 Auditorium
Abstract:
In age-related macular degeneration (AMD) and retinitis pigmentosa (RP), two leading causes of blindness, the photoreceptor layer of the retina is degenerated while the other layers remain functional. The function of photoreceptors is very similar to that of solar cells. Upon receiving the light, they stimulate the inner layers of retina electrically and chemically. These data are then processed and compressed by a complex circuit of retinal neurons - horizontal cells, biopolar cells, amacrine cells, and ganglion cells - and sent to the brain for recognition.
We have developed a monolithic silicon photovoltaic retinal implant that can replace the degenerated photoreceptor layer. The implant requires no electrical power or data connection. It consists of a two-dimensional network of miniature silicon solar cells that directly stimulate the retina when illuminated by a goggle-IR laser system. A MEMS process isolates adjacent pixels and makes the arrays curvable allowing them to conform to the shape of the retina and allow for transfer of nutrients to the remaining layers of retina. The MEMS technique also provides isolation between the bodies of the three series-connected subpixels that make up each pixel. A high spatial resolution, a large field of view, and absence of mechanical strain are all achieved as a result of this approach.
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From: Natasha Newson <nnewson@stanford.edu>
Date: Tue, Oct 19, 2010 at 1:37 PM
Subject: EE PhD Oral Examination - Rostam Dinyari, Thursday, October 21, 2010; 3:45 pm
To: ee-students@mailman.stanford.edu
STANFORD UNIVERSITY ORAL DEFENSE - DEPARTMENT OF ELECTRICAL ENGINEERING
TITLE: A CURVABLE SILICON RETINAL IMPLANT
Student: Rostam Dinyari
Adviser: Peter Peumans
Date: Thu, Oct 21, 2010
Time: 3:45 PM (Refreshments served at 3:30 PM)
Location: Allen-X 101 Auditorium
Abstract:
In age-related macular degeneration (AMD) and retinitis pigmentosa (RP), two leading causes of blindness, the photoreceptor layer of the retina is degenerated while the other layers remain functional. The function of photoreceptors is very similar to that of solar cells. Upon receiving the light, they stimulate the inner layers of retina electrically and chemically. These data are then processed and compressed by a complex circuit of retinal neurons - horizontal cells, biopolar cells, amacrine cells, and ganglion cells - and sent to the brain for recognition.
We have developed a monolithic silicon photovoltaic retinal implant that can replace the degenerated photoreceptor layer. The implant requires no electrical power or data connection. It consists of a two-dimensional network of miniature silicon solar cells that directly stimulate the retina when illuminated by a goggle-IR laser system. A MEMS process isolates adjacent pixels and makes the arrays curvable allowing them to conform to the shape of the retina and allow for transfer of nutrients to the remaining layers of retina. The MEMS technique also provides isolation between the bodies of the three series-connected subpixels that make up each pixel. A high spatial resolution, a large field of view, and absence of mechanical strain are all achieved as a result of this approach.
--
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ee-students@lists.stanford.edu
https://mailman.stanford.edu/mailman/listinfo/ee-students
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