منابع مشابه
Correcting chromatic aberrations using image warping
The problem of chromatic aberration arises because each wavelength of light is refracted diierently by the elements of a lens. Unfortunately , this means that is image will be blurred and distorted. In color imaging these distortions cause measurable diierences between the images. Recent research has proposed an approach for dealing with this aberrations by actively controlling the optics of th...
متن کاملStereopsis at isoluminance in the absence of chromatic aberrations.
Stereo (front-back) discrimination thresholds were measured in a two-interval forced-choice paradigm for chromatic (red-green) random-dot stereograms that had all detectable longitudinal and transverse aberrations removed by low-pass filtering. The thresholds were measured as a function of the luminance ratio of the red and the green stereo elements. Although individual differences were apparen...
متن کاملSuppression of the Chromatic Aberrations Using a Nanowire Metamaterial
Achromatic doublets have been used for decades to minimize the effects of chromatic aberrations inherent to single-glass optical lenses. Here, we propose a fundamentally different solution to correct the chromatic aberrations based on a nanowire metamaterial with low loss anomalous dispersion. We show that by coating a standard glass lens with the metamaterial it may be possible to design a com...
متن کاملA new approach to the study of ocular chromatic aberrations
We measured the ocular wavefront aberration at six different visible wavelengths (between 450 and 650 nm) in three subjects, using a spatially resolved refractometer. In this technique, the angular deviation of light rays entering the pupil at different locations is measured with respect to a target viewed through a centered pupil. Fits of the data at each wavelength to Zernike polynomials were...
متن کاملChromatic Harmonic Indices and Chromatic Harmonic Polynomials of Certain Graphs
In the main this paper introduces the concept of chromatic harmonic polynomials denoted, $H^chi(G,x)$ and chromatic harmonic indices denoted, $H^chi(G)$ of a graph $G$. The new concept is then applied to finding explicit formula for the minimum (maximum) chromatic harmonic polynomials and the minimum (maximum) chromatic harmonic index of certain graphs. It is also applied to split graphs and ce...
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ژورنال
عنوان ژورنال: American Journal of Physics
سال: 2000
ISSN: 0002-9505,1943-2909
DOI: 10.1119/1.1302906