SHARP EYE

a European Union Research and Training Network on

ADAPTIVE OPTICS FOR RETINAL IMAGING AND IMPROVED VISION

2002-2006

at the Technion - Israel Institute of Technology,  Technion City, Haifa 32000, Israel

 

CENTRAL WEB PAGE

 

Department of Physics

Department of Medicine

Dr. Erez Ribak

Professor Ido Perlman

Dr. Vassilios Albanis (post doc from Greece)

Professor Benny Miller (Rambam Medical Centre)

Dr. Fabio Pizzolato (post doc from Italy)

Dr. Izabela Komarowska (post doc from Poland)

Carmen Canovasl (graduate student from Murcia, Spain)

 

Yael Benny (graduate student to Murcia, Spain)

 

associated persons, through this and parallel research projects

Professor S. G. Lipson

Dr. Esther Zemel

Yuval Carmon (graduate student)

 

Shahaf Zommer(graduate student)

 

Naftali Zon and Orr Srour (undergraduate students)

 

Kick-off, November 2002. See pictures (1) (2) (3) (4) and next time don't let them X-ray your camera at the air port.

Later meetings: see Central Web Page.

Meeting at Technion, March 2005: See here.  Hari's Pictures (1) (2) (3) from Akko

Applications: we offer positions in various ocular imaging subjects, in physical, biological, and clinical aspects.

European nationals (including Eastern Europe) are most welcome, with salary and travel support assured (EU RTN terms and more).

Please write to eribak@physics.technion.ac.il or iperlman@tx.technion.ac.il for details. 

Experiments

1.      Adaptive optics system for the eye (under construction). Including home-made bimorph mirror (bottom right) and glass eye (red at left, under PC screen).

2.      Acousto-caustic cells for sensing ocular wave-fronts at a variable pitch. Introduction, a hexagonal cell, and a computer simulation.

3.      Optical system for testing cells and electronic amplifier for driving multi-resonance cells.

   

SHARP-EYE related papers and presentations, some borrowing from/to astronomy

(Presenter’s name in red)

  1. E N Ribak: Wave Front Sensing at a Variable Pitch, Beyond Conventional Adaptive Optics, R Ragazzoni, Ed, Venice (2001). PDF (150KB) , Poster intro , hexagonal cell, and a great demo.
  2. Y Carmon and E N Ribak: Reconstructing wave fronts with varying Hartmann arrays, Eds. J R P Angel, R Gilmozzi, SPIE 4840-14 (2002).
  3. E N Ribak: Harnessing caustics for wave front sensing. Optics Letters 26, 1834-6 (2001). draft (PDF,110KB)  and a great demo.   
  4. Y Carmon and E N Ribak: Phase retrieval by demodulation of a Hartmann-Shack sensor, Optics Communications 215, 285 - 288 (2003).  draft
  5. Y Carmon and E N Ribak: Spectral methods for wave fronts sensing and reconstruction, CLEO Europe /EQEC, paper CS2-1-2, Munich (2003).
  6. E N Ribak and R Ragazzoni: Mitigation of spot elongation effects, 2nd Bäckaskog Workshop on Extremely Large Telescopes, Sweden, 9-11 September (2003). abstract, draft
  7. E N Ribak, Separating Atmospheric Layers in Adaptive Optics, Optics Letters (2003). draft
  8. E N Ribak and R Ragazzoni: Reduction of laser spot elongation in adaptive optics, Optics Letters 29 1351-3 (2004). draft
  9. A Talmi and E N Ribak: Direct demodulation of Hartmann-Shack patterns, Journal of the Optical Society of America A 21, 632-9 (2004). draft, sample Matlab programme.
  10. Y Carmon and E N Ribak: Fast Fourier demodulation, Applied Physics Letters 84, 4656-7 (2004). draft
  11. S Zommer, J Adler, S G Lipson, and E N Ribak: Simulated annealing in adaptive optics for the eye retina, Bulletin of the Israel Physical Society 50, 77 (2004). abstract
  12. E N Ribak: High resolution imaging of the eye in adaptive optics. The First France-Israel Bi-National Workshop on NanoBioPhotonics, ed. M Shani Sekler, December 10-12, 2005, Eilat, Israel.
  13. N Zon, O Srour, and E N Ribak: Hartmann-Shack analysis errors. Optics Express 14, 635-643 (2006).
  14. A Talmi and E N Ribak: Wavefront reconstruction from its gradients. Journal of the Optical Society of America A 23, 288-97 (2006). draft and sample programmes.
  15. S Zommer, E N Ribak, S G Lipson, and J Adler: Simulated annealing in ocular adaptive optics, Optics Letters 31, 939-41 (2006). draft
  16. E N Ribak, Y Carmon, A Talmi, O Glazer, O Srour and N Zon: Full wave front reconstruction in the Fourier domain. SPIE 6272-200, Orlando (2006). draft (800KB).
  17. V Albanis, Y Benny, Y Carmon and E N Ribak: Ocular Wavefront Sensing using an Acousto-Optic cell as an adjustable Hartmann-Shack sensor. 5th Aegean Summer School in Visual Optics, Rethymnon Crete, Ed. Harilaos Ginis, Institute of Vision and Optics ­ University of Crete, Heraklion Greece, July 1-6 (2006). 
  18. S Zommer and E N Ribak: Adaptive optics almost without wave front sensing. Mopane (A) 2006 Conference on Visual Optics, Ed. W F Harris, Mopani Camp, Kruger National Park, South Africa, August 5-10 (2006).
  19. Y Carmon, A Talmi, C Canovas and E N Ribak: Comparative study of Hartmann-Shack reconstruction methods. Mopane (A) 2006 Conference on Visual Optics, Ed. W F. Harris, Mopani Camp, Kruger National Park, South Africa, August 5-10 (2006).
  20. V Albanis, Y Benny, Y Carmon and E N Ribak: Wavefront Sensing using an adjustable Hartmann-Shack sensor. 3rd European Meeting in Physiological Optics, Ed. Luis Diaz-Santana, Department of Optometry and Visual Science, City University, London, United Kingdom, September 7-9 (2006).
  21. Y Benny, E N Ribak, S Manzanera, P M Prieto and P Artal:  Measuring and correcting the LCA of the human eye. 3rd European Meeting in Physiological Optics, Ed. Luis Diaz-Santana, Department of Optometry and Visual Science, City University, London, United Kingdom, September 7-9 (2006).
  22. Y Benny, S Manzanera, P M Prieto, E N Ribak and P Artal: Diseño y comprobación de un corrector de aberración cromática ocular de campo amplio. Spanish National Meeting on Optics (Reunion Nacional de Optica), Alicante, Spain, September 18-22 (2006).
  23. O Glazer, E N Ribak and L Mirkin: Adaptive optics implementation with a Fourier reconstructor, Applied Optics 46, 574-80 (2007). draft
  24. C Canovas and E N Ribak: Comparison of Hartmann analysis methods, Applied Optics 46, 1830-5 (2007). draft 
  25. Y Benny, S Manzanera, P M Prieto, E N Ribak and P Artal: Wide-angle chromatic aberration corrector for the human eye, Journal of the Optical Society of America A 24, 1538-44 (2007) draft
  26. E N Ribak, Y Carmon, A Talmi, O Glazer and C Canovas: “Hartmann Fourier Analysis for Sensing and Correction”. Adaptive Optics: Analysis and Methods, Optical Society of America. Ed. B Ellerbroek, Vancouver, Canada, June 19-20 (2007).
  27. V Albanis, E N Ribak and Y. Carmon: “Speckle reduction in wave-front sensing”. Adaptive Optics: Analysis and Methods, Optical Society of America. Ed. B Ellerbroek, Vancouver, Canada, June 19-20 (2007).

(Please see in list of publications)