Bimorph deformable mirror: An appropriate wavefront corrector for retinal imaging?

Sophie Laut, Steve Jones, Hyunkyu Park, David A. Horsley, Scot Olivier, John S Werner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

The purpose of this study was to evaluate the performance of a bimorph deformable mirror from AOptix, inserted into an adaptive optics system designed for in-vivo retinal imaging at high resolution. We wanted to determine its suitability as a wavefront corrector for vision science and ophthalmological instrumentation. We presented results obtained in a closed-loop system, and compared them with previous open-loop performance measurements. Our goal was to obtain precise wavefront reconstruction with rapid convergence of the control algorithm. The quality of the reconstruction was expressed in terms of root-mean-squared wavefront residual error (RMS), and number of frames required to perform compensation. Our instrument used a Hartmann-Shack sensor for the wavefront measurements. We also determined the precision and ability of the deformable mirror to compensate the most common types of aberrations present in the human eye (defocus, cylinder, astigmatism and coma), and the quality of its correction, in terms of maximum amplitude of the corrected wavefront. In addition to wavefront correction, we had also used the closed-loop system to generate an arbitrary aberration pattern by entering the desired Hartmann-Shack centroid locations as input to the AO controller. These centroid locations were computed in Matlab for a user-defined aberration pattern, allowing us to test the ability of the DM to generate and compensate for various aberrations. We conclude that this device, in combination with another DM based on Micro-Electro Mechanical Systems (MEMS) technology, may provide better compensation of the higher-order ocular wavefront aberrations of the human eye.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsB.M. Cullum, J.C. Carter
Volume6007
DOIs
StatePublished - 2005
EventSmart Medical and Biomedical Sensor Technology III - Boston, MA, United States
Duration: Oct 24 2005Oct 26 2005

Other

OtherSmart Medical and Biomedical Sensor Technology III
CountryUnited States
CityBoston, MA
Period10/24/0510/26/05

Fingerprint

deformable mirrors
Wavefronts
aberration
Mirrors
Aberrations
Imaging techniques
feedback control
centroids
Closed loop systems
astigmatism
coma
adaptive optics
Adaptive optics
controllers
high resolution
sensors
Controllers
Sensors

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Laut, S., Jones, S., Park, H., Horsley, D. A., Olivier, S., & Werner, J. S. (2005). Bimorph deformable mirror: An appropriate wavefront corrector for retinal imaging? In B. M. Cullum, & J. C. Carter (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6007). [60070Q] https://doi.org/10.1117/12.630961

Bimorph deformable mirror : An appropriate wavefront corrector for retinal imaging? / Laut, Sophie; Jones, Steve; Park, Hyunkyu; Horsley, David A.; Olivier, Scot; Werner, John S.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / B.M. Cullum; J.C. Carter. Vol. 6007 2005. 60070Q.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Laut, S, Jones, S, Park, H, Horsley, DA, Olivier, S & Werner, JS 2005, Bimorph deformable mirror: An appropriate wavefront corrector for retinal imaging? in BM Cullum & JC Carter (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 6007, 60070Q, Smart Medical and Biomedical Sensor Technology III, Boston, MA, United States, 10/24/05. https://doi.org/10.1117/12.630961
Laut S, Jones S, Park H, Horsley DA, Olivier S, Werner JS. Bimorph deformable mirror: An appropriate wavefront corrector for retinal imaging? In Cullum BM, Carter JC, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6007. 2005. 60070Q https://doi.org/10.1117/12.630961
Laut, Sophie ; Jones, Steve ; Park, Hyunkyu ; Horsley, David A. ; Olivier, Scot ; Werner, John S. / Bimorph deformable mirror : An appropriate wavefront corrector for retinal imaging?. Proceedings of SPIE - The International Society for Optical Engineering. editor / B.M. Cullum ; J.C. Carter. Vol. 6007 2005.
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