Results 281 to 290 of about 290,365 (318)
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Statistical lensing by extended lenses
2008The purpose of the work underlying this contribution was to study the propagation of light through a universe filled with galaxies, which in turn consist of stars, thereby combining the work of Refsdal (1970) and Schneider & Weiss (1988) with that of Kayser & Refsdal (1988) and Jaroszynski (1989).
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Optometry and Vision Science, 1999
In this study, 10 lens-shaped rock crystals, manufactured not later than the early Middle Ages, have been examined with respect to their image-forming qualities.The spherical aberration of the lenses served as a scale for comparison. Measurements have been taken with a specially designed light section method.
Olaf Schmidt+2 more
openaire +3 more sources
In this study, 10 lens-shaped rock crystals, manufactured not later than the early Middle Ages, have been examined with respect to their image-forming qualities.The spherical aberration of the lenses served as a scale for comparison. Measurements have been taken with a specially designed light section method.
Olaf Schmidt+2 more
openaire +3 more sources
Ophthalmic and Physiological Optics, 2012
AbstractStructures which bend light and so form images are present in all the major phyla. Lenses with a graded refractive index, and hence reduced spherical aberration, evolved in the vertebrates, arthropods, annelid worms, and several times in the molluscs. Even cubozoan jellyfish have lens eyes.
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AbstractStructures which bend light and so form images are present in all the major phyla. Lenses with a graded refractive index, and hence reduced spherical aberration, evolved in the vertebrates, arthropods, annelid worms, and several times in the molluscs. Even cubozoan jellyfish have lens eyes.
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1967
Publisher Summary The contact lens is so called because it is in contact with the eye in just the same way as a denture is in contact with the mouth. There are two types of contact lenses: corneoscleral lenses and microcorneal lenses. Corneoscleral lenses are in contact with both the corneal and scleral surfaces of the eye.
J.L.C. MARTIN-DOYLE, MARTIN H. KEMP
openaire +5 more sources
Publisher Summary The contact lens is so called because it is in contact with the eye in just the same way as a denture is in contact with the mouth. There are two types of contact lenses: corneoscleral lenses and microcorneal lenses. Corneoscleral lenses are in contact with both the corneal and scleral surfaces of the eye.
J.L.C. MARTIN-DOYLE, MARTIN H. KEMP
openaire +5 more sources
Smart Contact Lenses for Biosensing Applications
Advanced Intelligent Systems, 2021Ali Khademhosseini, Dong Wu, Zibin Zheng
exaly
Continuous optical zoom microscopy imaging system based on liquid lenses
Optics Express, 2021Qiong-hua Wang, Chao Liu
exaly
Contact Lenses for Color Vision Deficiency
Advanced Materials Technologies, 2021Ahmed E Salih+2 more
exaly
Flat Lenses Based on 2D Perovskite Nanosheets
Advanced Materials, 2020Ziyu Wang, Tieshan Yang, Yupeng Zhang
exaly