Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Eliezer Keren"'
Publikováno v:
Journal of The British Contact Lens Association. 19:117-127
Two separate international ring tests were carried out to assess the measurement capability of the focimeter and the Moire deflectometer as applied to the power-related parameters of toric soft contact lenses. The results show that in order to measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::983b3cebd2948421a6abb2bee16635ef
https://doi.org/10.1016/s0141-7037(96)80004-8
https://doi.org/10.1016/s0141-7037(96)80004-8
Publikováno v:
Applied optics. 29(1)
Three uses of moire deflectometry employing a focused beam are described. A microscopic mode provides inspection of magnified images of the test object. The moire fringes are used as a noncontact tunable caliper for measuring the dimensions of small
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd98c2709eea4ee53191bb1a840b7aac
https://pubmed.ncbi.nlm.nih.gov/20556078
https://pubmed.ncbi.nlm.nih.gov/20556078
Publikováno v:
Applied optics. 26(1)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23c84c6d7a06390dfc46273cc7daf91d
https://pubmed.ncbi.nlm.nih.gov/20454066
https://pubmed.ncbi.nlm.nih.gov/20454066
Publikováno v:
Applied optics. 21(21)
Phase object analysis is discussed and demonstrated using infinite moire deflectometry in which the grooves of the two Ronchi rulings are parallel. It is shown that this mode of operation may be advantageous in some cases such as automatic picture pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f015cee4dada8fca8780ed2b1cb18a53
https://pubmed.ncbi.nlm.nih.gov/20396334
https://pubmed.ncbi.nlm.nih.gov/20396334
Publikováno v:
Optics letters. 10(4)
The effect of using a sinusoidal grating instead of a Ronchi ruling as the object grating in moire deflectometry is discussed and demonstrated. The method reduces the diffraction blur, which hinders the use of the conventional moire deflectometer for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fe9c0f71821b3b48081fa3c737037c0
https://pubmed.ncbi.nlm.nih.gov/19724382
https://pubmed.ncbi.nlm.nih.gov/19724382
Autor:
Raanan Bavli, Eliezer Keren
Publikováno v:
Vision Science and its Applications.
Progressive addition lenses should be designed for optimum performance when viewed from the center of rotation of the eye. Designs that look good when mapped using a focimeter appear badly distorted from the eye-point perspective.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b09d8d2998423f733808a5307c41763
https://doi.org/10.1364/vsia.2000.mc2
https://doi.org/10.1364/vsia.2000.mc2
Autor:
Amiadav Livnat, Eliezer Keren
Publikováno v:
SPIE Proceedings.
The need to measure the optical properties of IOLs in a wet cell stems from the required in- situ conditions. Soft contact lenses also benefit from wet conditions since the blotting procedure introduces significant errors. An instrument with a high d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01079f5fbeb978eaf2105856b3ad3aec
https://doi.org/10.1117/12.240073
https://doi.org/10.1117/12.240073
Publikováno v:
SPIE Proceedings.
The traditional parameters used for describing lens performance, such as PSF of MTF, fail to take into account the contribution of the human visual system to image quality. The proposed criterion assumes that the eye responds through accommodation an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c9ad4cf4d4d7ead0b5c57edc98a68be
https://doi.org/10.1117/12.176833
https://doi.org/10.1117/12.176833
Publikováno v:
8th Meeting on Optical Engineering in Israel: Optoelectronics and Applications in Industry and Medicine.
Since the advent of soft contact lenses, no solution had been found for accurately and easily testing these lenses. The same systems that had been used for testing dry lenses were applied. This resulted in difficult training of each operator in prope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fc7fb1d3d4b3b9517ca87cd531fad0c
https://doi.org/10.1117/12.151125
https://doi.org/10.1117/12.151125
Publikováno v:
Ophthalmic and Visual Optics.
The fast progress in the design and manufacture of complex lenses for visual correction has not been accompanied by a comparable progress in test and measurement equipment. The traditional focimeter averages an area of several millimeters, and requir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::562727637ee5952a840865764538b654
https://doi.org/10.1364/ovo.1993.pd.1
https://doi.org/10.1364/ovo.1993.pd.1