Structure of Artificial Electronic Retina

• US 20150246220A1
• Filed: 05/18/2015
• Published: 09/03/2015
• Est. Priority Date: 05/09/2012
• Status: Active Grant

• Current Assignee: Po-Kang Lin
• Original Assignee: Po-Kang Lin
• Inventors: Lin, Po-Kang
• Granted Patent: US 9,427,569 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61N 1/0543 Retinal electrodes
• CPC Class Codes: A61N 1/36046 of the eye
• CPC Class Codes: A61N 1/3758 Packaging of the components within the casing
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites

Abstract

A structure of an artificial electronic retina is disclosed, which includes an array of a plurality of photoelectric units, and each photoelectric unit includes one electronic photosensitive element, one microelectrode, one electronic circuit, and sidewalls surrounding the photoelectric unit, wherein the microelectrode is disposed on and electrically connected to the electronic photosensitive element, and the electronic circuit is disposed on the electronic photosensitive element adjacent to the sidewalls near the circumference of the electronic photosensitive element. A layer of a light-permeable conductive material is disposed on the electronic photosensitive element between the microelectrode and the electronic circuit, wherein the layer of the light-permeable conductive material is electrically connected to both the electronic photosensitive element and the microelectrode. Therefore, the input and output power of the electronic photosensitive element can be increased without reducing the photosensitive area of the electronic photosensitive element.

Claims

1. A structure of an artificial electronic retina, comprising:

an array of a plurality of photoelectric units, each photoelectric unit including one electronic photosensitive element, one microelectrode, one electronic circuit and sidewalls abutting sidewalls of neighboring photoelectric units, the microelectrode being disposed on and electrically connected to the electronic photosensitive element, the electronic circuit being disposed on the electronic photosensitive element immediately adjacent to the sidewalls near the circumference of the electronic photosensitive element, wherein a layer of a light-permeable conductive material is disposed in an independent manner on the electronic photosensitive element between the microelectrode and the electronic circuit in each photoelectric unit, and the layer of the light-permeable conductive material is electrically connected to the microelectrode and the electronic photosensitive element, and kept away from the sidewalls of each photoelectric unit by the electronic circuit.

2. The structure as claimed in claim 1, wherein the light-permeable conductive material is a conductive biomaterial.

3. The structure as claimed in claim 2, wherein the conductive biomaterial is indium tin oxide.

4. The structure as claimed in claim 2, wherein the conductive biomaterial is carbon nanotube.

5. The structure as claimed in claim 2, wherein the conductive biomaterial is graphene.

6. The structure as claimed in claim 1, wherein the light-permeable conductive material has a light-focusing structure.

7. The structure as claimed in claim 6, wherein the light-focusing structure has a protruded arc-shaped surface.

8. The structure as claimed in claim 6, wherein the light-focusing structure has a plurality of protruding portions formed on a surface of the light-permeable conductive material.

9. The structure as claimed in claim 1, wherein the light-permeable conductive material has an electricity-discharging structure.

10. The structure as claimed in claim 9, wherein the electricity-discharging structure has a plurality of acute protruding portions formed on a surface of the light-permeable conductive material for point discharging.