Reducing speckle in double-pass systems using focus tunable lenses
Document typeConference report
Rights accessRestricted access - publisher's policy
Speckle arises in double-pass systems when coherent light is reflected by the retina. Since it degrades the images that are used to characterize the eye, there is special attention in reducing speckle when working with instruments based on retinal reflection. We present in this work the results of reducing speckle in a double-pass system by varying the vergence of the beam entering the eye with an electro-optical liquid lens during the recording of images. An artificial and a real eye were measured, observing a speckle reduction when the method was applied.
CitationGarcia, C.E., Aldaba , M., Arjona, M., Pujol, J. Reducing speckle in double-pass systems using focus tunable lenses. A: European / World Meeting in Visual and Physiological Optics. "Proceedings of the VII European / I World Meeting in visual and Physiological Optics VPOptics 2014". Wroclaw: 2014, p. 90-93.
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