Paper
23 September 2008 Unconventional single element optical designs for complex illumination systems
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Abstract
Light beam distortion from multiple reflections inside a luminaire is corrected by adding simple curvatures to different reflective surfaces, separating the management of the vertical and horizontal components of the beam. The luminaire directs the beam into the trajectory and convergence angle required for a digital ophthalmoscope, with a particular task of maximizing the contrast ratio in the image by reducing visible corneal reflectance of the light source.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Niall McGee "Unconventional single element optical designs for complex illumination systems", Proc. SPIE 7103, Illumination Optics, 71030F (23 September 2008); https://doi.org/10.1117/12.797694
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KEYWORDS
Imaging systems

Cornea

Retina

Eye

Ophthalmology

Reflectivity

Reflection

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