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Accession Number ADA570353
Title Bio-Inspired Polymeric Gradient Refractive Index (GRIN) Human Eye Lens.
Publication Date Nov 2012
Media Count 10p
Personal Author A. Rosenberg M. Ponting R. Flynn R. S. Lepkowicz S. Ji
Abstract A synthetic polymeric lens was designed and fabricated based on a bio-inspired, 'Age=5' human eye lens design by utilizing a nanolayered polymer film-based technique. The internal refractive index distribution of an anterior and posterior GRIN lens were characterized and confirmed against design by microATR-FTIR. 3D surface topography of the fabricated aspheric anterior and posterior lenses was measured by placido-cone topography and exhibited confirmation of the desired aspheric surface shape. Furthermore, the wavefronts of aspheric posterior GRIN and PMMA lenses were measured and simulated by interferometry and Zemax software, respectively. Their results show that the gradient index distribution reduces the overall wavefront error as compared a homogenous PMMA lens of an identical geometry. Finally, the anterior and posterior GRIN lenses were assembled into a bio-inspired GRIN human eye lens through which a clear imaging was possible.
Keywords Aspherics
Biologically inspired
Gradient-index lenses
Grin(Gradient refractive index)
Human eye lenses
Lens(Eye)
Polymeric films
Polynomials
Refractive index
Shape
Wavefront errors
Wavefronts


 
Source Agency Non Paid ADAS
NTIS Subject Category 57A - Anatomy
57S - Physiology
71 - Materials Sciences
46C - Optics & Lasers
Corporate Author Naval Research Lab., Washington, DC.
Document Type Journal article
Title Note Journal article.
NTIS Issue Number 1314
Contract Number HR0011-10-C-0110 DMR-0423914

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