Invention Grant
- Patent Title: Active retina implant with a multiplicity of pixel elements
- Patent Title (中): 活性视网膜植入物具有多个像素元素
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Application No.: US11305920Application Date: 2005-12-19
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Publication No.: US07751896B2Publication Date: 2010-07-06
- Inventor: Heinz-Gerhard Graf , Alexander Dollberg , Bernd Hoefflinger , Wilfried Nisch , Hugo Haemmerle , Alfred Stett , Martin Stelzle , Eberhart Zrenner
- Applicant: Heinz-Gerhard Graf , Alexander Dollberg , Bernd Hoefflinger , Wilfried Nisch , Hugo Haemmerle , Alfred Stett , Martin Stelzle , Eberhart Zrenner
- Applicant Address: DE Reutlingen
- Assignee: Retina Implant AG
- Current Assignee: Retina Implant AG
- Current Assignee Address: DE Reutlingen
- Agency: Morrison & Foerster LLP
- Priority: DE10329615 20030623
- Main IPC: A61F2/14
- IPC: A61F2/14

Abstract:
An active retina implant has a multiplicity of pixel elements that convert incident light into electric stimulation signals for cells of the retina with which stimulation electrodes are to make contact. Each pixel element is provided with at least one image cell that converts incident light into electric signals, there being provided at least one amplifier whose input is connected to the image cell and whose output is connected to at least one stimulation electrode to which it supplies a stimulation signal. Also provided is an energy supply which provides externally coupled external energy as supply voltage for the image cells and the amplifiers. The image cell has a logarithmic characteristic according to which incident light of specific intensity is converted into electric signals of specific amplitude. The stimulation signal is supplied in the form of analog voltage pulses of specific pulse length and pulse spacings, the pulse amplitude being a function of the intensity of the incident light.
Public/Granted literature
- US20060184245A1 Active retina implant with a multiplicity of pixel elements Public/Granted day:2006-08-17
Information query
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