Reduction of ocular chromatic aberration by a blue light filtering
... 1. Thibos LN, Bradley A, Zhang XX. Effect of ocular chromatic aberration on monocular visual performance. Optom Vis Sci. 1991;68:599-607. 2. Rieger G. Improvement of contrast sensitivity with yellow filter glasses. Can J Ophthalmol. 1992;27:137-138. 3. Manzanera S, Piers P, Weeber H, Artal P. Visual ...
... 1. Thibos LN, Bradley A, Zhang XX. Effect of ocular chromatic aberration on monocular visual performance. Optom Vis Sci. 1991;68:599-607. 2. Rieger G. Improvement of contrast sensitivity with yellow filter glasses. Can J Ophthalmol. 1992;27:137-138. 3. Manzanera S, Piers P, Weeber H, Artal P. Visual ...
Arbitrary GRIN component fabrication in optically
... homogeneous layers of glass materials onto a substrate. The GRIN pattern is produced by depositing glasses with different refractive indices as the volume is created, varying the refractive index distribution axially through the volume. However, CVD has limitations for large diameter lenses due to t ...
... homogeneous layers of glass materials onto a substrate. The GRIN pattern is produced by depositing glasses with different refractive indices as the volume is created, varying the refractive index distribution axially through the volume. However, CVD has limitations for large diameter lenses due to t ...
Intraocular Lenses
... A similar procedure can be done for zone plates (since they are just circular diffraction gratings) so that multiple wavelengths all have the same focal point. MOD diffractive lenses are being developed by Vision Membrane Technologies for use as phakic IOL’s. ...
... A similar procedure can be done for zone plates (since they are just circular diffraction gratings) so that multiple wavelengths all have the same focal point. MOD diffractive lenses are being developed by Vision Membrane Technologies for use as phakic IOL’s. ...
An Efficient Wide-Angle Beam Propagation Method Using
... transformation can be readily extended to three dimensional (3-D) cases. Then, by numerically shifting the input beam opposite to the variation of the waveguide geometry in every step, the propagation in a longitudinally varying waveguide can be realized through an ESW. This can be performed by gene ...
... transformation can be readily extended to three dimensional (3-D) cases. Then, by numerically shifting the input beam opposite to the variation of the waveguide geometry in every step, the propagation in a longitudinally varying waveguide can be realized through an ESW. This can be performed by gene ...
Nonlinear matter wave optics
... as oceanography (Tsunamis), biology (signal transmission in nerves) and physics. J.S. Russell described 1834 for the first time the formation of a soliton in a narrow water channel. This water wave didn’t change its shape for a long distance. In physics solitons are found in systems with either phot ...
... as oceanography (Tsunamis), biology (signal transmission in nerves) and physics. J.S. Russell described 1834 for the first time the formation of a soliton in a narrow water channel. This water wave didn’t change its shape for a long distance. In physics solitons are found in systems with either phot ...
The Spectrophotometer
... the left zero using the left knob. The needle may drift for 15 minutes or so, and minor adjustments will need to be made during this time. This is called "zeroing" the light output. Zeroing the light output is a means of maintaining equal operating conditions on a day-to-day basis. ...
... the left zero using the left knob. The needle may drift for 15 minutes or so, and minor adjustments will need to be made during this time. This is called "zeroing" the light output. Zeroing the light output is a means of maintaining equal operating conditions on a day-to-day basis. ...
Tuneability of amplified spontaneous emission through control of the waveguide-mode... in conjugated polymer films
... at the critical angle, these sources interfere destructively and the accumulated substrate wave will be weak. However, for the cutoff wavelength of the guide, the sources are correctly phased to interfere constructively and so an enhancement is seen around this wavelength. For emission angles less t ...
... at the critical angle, these sources interfere destructively and the accumulated substrate wave will be weak. However, for the cutoff wavelength of the guide, the sources are correctly phased to interfere constructively and so an enhancement is seen around this wavelength. For emission angles less t ...
Mie theory for light scattering by a spherical
... functions of size parameter 共2a兾0兲. The singlescattering properties include extinction, scattering, and absorption efficiencies and asymmetry factors. It is well known that for a particle in a nonabsorbing medium, the extinction efficiency approaches two when the size parameter increases. However, ...
... functions of size parameter 共2a兾0兲. The singlescattering properties include extinction, scattering, and absorption efficiencies and asymmetry factors. It is well known that for a particle in a nonabsorbing medium, the extinction efficiency approaches two when the size parameter increases. However, ...
chapter35
... by two paths. It travels to the mirror at an angle of incidence θ and reflects from the mirror to the person. It also travels directly to the person without reflecting off the mirror. The total distance traveled by the light in the first case is twice the distance traveled by the light in the second ...
... by two paths. It travels to the mirror at an angle of incidence θ and reflects from the mirror to the person. It also travels directly to the person without reflecting off the mirror. The total distance traveled by the light in the first case is twice the distance traveled by the light in the second ...
Dispersion staining
The optical properties of all liquid and solid materials change as a function of the wavelength of light used to measure them. This change as a function of wavelength is called the dispersion of the optical properties. The graph created by plotting the optical property of interest by the wavelength at which it is measured is called a dispersion curve.The dispersion staining is an analytical technique used in light microscopy that takes advantage of the differences in the dispersion curve of the refractive index of an unknown material relative to a standard material with a known dispersion curve to identify or characterize that unknown material. These differences become manifest as a color when the two dispersion curves intersect for some visible wavelength. This is an optical staining technique and requires no stains or dyes to produce the color. Its primary use today is in the conformation of the presence of asbestos in construction materials but it has many other applications.