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InvestmentUpdated on 29 September 2026

ARtificial VIsion System ARVIS

Tech Transfer Technician at Institut de Física d'Altes Energies (IFAE)

Barcelona, Spain

About

The technology discloses an advanced artificial vision system designed to restore functional sight in patients suffering from photoreceptor degenerative disorders, such as Retinitis Pigmentosa, by establishing a direct wireless optical link inside the eye. Built around an intraocular implant—which can be epiretinal, subretinal, or suprachoroidal—the system comprises a high-density multi-pixel integrated circuit (ASIC) integrated directly with a multi-electrode array, an array of high-efficiency photovoltaic cells (such as PERT silicon cells), energy storage capacitors, an infrared PIN photodetector, and shape-memory structural frames.

The system operates in conjunction with an external support, such as smart glasses equipped with a digital video camera, an image processor, an infrared LED driver operating at high modulation frequencies (between 1 MHz and 1 GHz), and a radio-frequency transceiver. Visual scenes captured by the camera are processed into data patterns and transmitted directly through the eye’s optic media via high-frequency infrared light pulses (preferably at wavelengths of 700 nm to 800 nm or higher to ensure high optical transmission and efficiency). The photovoltaic cell array absorbs this incoming light to power the implant’s onboard electronics without requiring bulky intraocular batteries or physical trans-scleral wiring, while the PIN photodetector decodes the light pulses to command individual pixels on the ASIC. Direct mounting of the electrodes on the ASIC pixels eliminates long wire interconnects, preventing signal crosstalk and allowing a tenfold or greater increase in electrode density compared to traditional 60-electrode arrays.

To overcome surgical constraints associated with larger implant surface areas, the prosthesis incorporates nickel-titanium (Nitinol) shape-memory alloy frames that allow it to be inserted through a minimal scleral incision in a compact, folded state inside a protective sheath. Once positioned within the eye, thermal activation of the shape-memory frame causes the array to unfold flat against the retinal surface. Furthermore, the system includes bi-directional monitoring capabilities: neighboring electrodes record electrical responses from adjacent Retinal Ganglion Cells to evaluate local neural activity and electrode impedance. This neurological feedback is transmitted back to the external processing unit via an integrated micro-LED or an ultra-low-power RF link, allowing the image processing unit to dynamically calibrate pixel activation patterns to optimize artificial image perception for the user.

Stage

  • Seed and Development

Applies to

  • MEDICINE

Attached files

Organisation

Institut de Física d'Altes Energies (IFAE)

R&D Institution/University

Bellaterra, Barcelona, Spain

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