97th DOG Annual Meeting 1999


EAGLES: Electronically Active Glasses by Laser Enhancement System

H. Brandl, H. A. Eberl, R. H. C. Eberl, H. Schmidt-Bischoffshausen, T. Halld├▓rsson

System: Laser-enhanced electronic glasses featuring the following main components: Spherical lenses and frames in which a microscanner with control-unit is integrated. A photoreceiver is also integrated. The opto-electronic supply to the glasses is assumed by an external microcomputer in which a laser performs image (re-)generation for red, green, blue and IR.

Method: The image obtained by scanning the retina and processed by a computer is reprojected back on to the retina in the same manner quasi simultanously. The rotation-symmetric reading/projection system enables even coverage of the retina.

Process steps: Scanning of the retinal image, analysis and generation of a corrected image, reprojection via microscanner- and lasers.

Application fields: Driver vision enhancement: Image enhancing while driving in dust and fog, display of GPS navigation information, etc.; view copying: The image seen can be stored and transferred to others (Telemedicine, information capturing and collection, Internet, etc.); Eye mouse; Information control, etc.

Special ophthalmology uses: Retinitis pigmentosa patients: night vision aid, adaptation of field of vision, etc. pattern generation on retina in reproducible areas, electro-physiological examinations, visual acuity testing, precision strabometry via integrated eye tracker with various lines of fixation and corresponding processing by the microcomputer, 3-D display image at virtual distance, ultra-high resolution of the image taken from the retina, the image being supplemented with additional information during the reprojection process; no impact on the vestibular system as the horizon is always retained.

Flugmedizinisches Institut der Luftwaffe, Fliegerhorst, 82242 F├╝rstenfeldbruck, Germany

in Cooperation with Physoptics Opto-Electronic GmbH and Daimler-Chrysler AG