Extended depth-of-field iris recognition system for a
... exposures) calls for a relatively fast optical systems (low F-number), which inherently leads to a shallow depth of field in traditional optical systems. In this paper we present a fast (low F-number) iris imaging system with an extended depth of field, a solution that cannot be delivered with tradi ...
... exposures) calls for a relatively fast optical systems (low F-number), which inherently leads to a shallow depth of field in traditional optical systems. In this paper we present a fast (low F-number) iris imaging system with an extended depth of field, a solution that cannot be delivered with tradi ...
radar cross section (rcs)
... the beam, and the weakest is slightly more than 1 m2 in the 135E/225E positions. These RCS values can be very misleading because other factors may affect the results. For example, phase differences, polarization, surface imperfections, and material type all greatly affect the results. In the above t ...
... the beam, and the weakest is slightly more than 1 m2 in the 135E/225E positions. These RCS values can be very misleading because other factors may affect the results. For example, phase differences, polarization, surface imperfections, and material type all greatly affect the results. In the above t ...
Representation of a nonspherical ice particle by a collection of
... 1.6 mm. The horizontal lines indicate the values for equal-V/A spheres. In both panels, F = 0.2 and rVA = 20 mm. example) is equal to rVA for the non-spherical particle in question. 3.1. Mie Theory and Ray Tracing [13] The scattering properties of spheres were calculated from Mie theory, using the c ...
... 1.6 mm. The horizontal lines indicate the values for equal-V/A spheres. In both panels, F = 0.2 and rVA = 20 mm. example) is equal to rVA for the non-spherical particle in question. 3.1. Mie Theory and Ray Tracing [13] The scattering properties of spheres were calculated from Mie theory, using the c ...
Influence of substrate configuration on the angular response pattern
... When subjected to infrared radiation, the temperature of the bolometer changes and consequently, so does its resistance [5]. Detection of incident infrared radiation is then measured using a constant voltage supply while monitoring the current flow through the bolometer. However, this yields a distr ...
... When subjected to infrared radiation, the temperature of the bolometer changes and consequently, so does its resistance [5]. Detection of incident infrared radiation is then measured using a constant voltage supply while monitoring the current flow through the bolometer. However, this yields a distr ...
Non-linear Optical Microscopy and Spectroscopy for
... Why use non-linear optics for biomedical studies? The answer is not ”because we can”, but because non-linear optics enables stretching of the resolution limit in highscattering materials, and gives a chance to investigate inherent processes without destroying the sample. The first theoretical report ...
... Why use non-linear optics for biomedical studies? The answer is not ”because we can”, but because non-linear optics enables stretching of the resolution limit in highscattering materials, and gives a chance to investigate inherent processes without destroying the sample. The first theoretical report ...
Detennining the Phase Diagra1n and Aggregate Size of a Chro1nonic Liquid Crystal J
... phases of matter: the solid, liquid, and gas phases. Transitions between these phases are governed by the temperatures and pressures to which a material is subjected, and the majority of compounds change from solids to liquids to gases as the temperature increases under constant pressure. For one ou ...
... phases of matter: the solid, liquid, and gas phases. Transitions between these phases are governed by the temperatures and pressures to which a material is subjected, and the majority of compounds change from solids to liquids to gases as the temperature increases under constant pressure. For one ou ...
Chapter 33 . Aberration Curves in Lens Design
... added to evaluate a fan of skew rays traced in a sagittal plane. Because a skew ray fan is symmetrical across the meridional plane, only one side of the curve is usually plotted. For all curves the plots are departures from the chief ray location in the evaluation plane (Fig. 3). (In the case of the ...
... added to evaluate a fan of skew rays traced in a sagittal plane. Because a skew ray fan is symmetrical across the meridional plane, only one side of the curve is usually plotted. For all curves the plots are departures from the chief ray location in the evaluation plane (Fig. 3). (In the case of the ...
Optical Indicatrix
... represented by an ellipsoid and thus the waves travel different distances in the same time depending on the orientation of the incident beam. They are called extraordinary rays because the ray path and the wave normal do not coincide. The wave normal for an extraordinary ray is parallel to the norma ...
... represented by an ellipsoid and thus the waves travel different distances in the same time depending on the orientation of the incident beam. They are called extraordinary rays because the ray path and the wave normal do not coincide. The wave normal for an extraordinary ray is parallel to the norma ...
Skowrons Waugh Choose Ohio First poster
... The optical properties for an organic light-emitting diode (OLED) are modeled by the transfer matrix algorithm. Using the commercially available software package SimOLED, we adjusted the dimensions of the organic layers of the OLED to achieve the optimal optic properties for a red OLED. We also stud ...
... The optical properties for an organic light-emitting diode (OLED) are modeled by the transfer matrix algorithm. Using the commercially available software package SimOLED, we adjusted the dimensions of the organic layers of the OLED to achieve the optimal optic properties for a red OLED. We also stud ...
Technology for a better society
... The objective diaphragm cuts off all values of u (spatial frequencies) greater than (higher than) some selected value governed by the radius of the aperture. ...
... The objective diaphragm cuts off all values of u (spatial frequencies) greater than (higher than) some selected value governed by the radius of the aperture. ...
Optical Waveguide Modes
... A system like that shown in Fig. 2.3 is particularly useful for analysis of mode shapes in semiconductor waveguides, which generally support only one or two modes because of the relatively small Δn at the waveguide-substrate interface. Generally, the position of the focused input laser beam can be m ...
... A system like that shown in Fig. 2.3 is particularly useful for analysis of mode shapes in semiconductor waveguides, which generally support only one or two modes because of the relatively small Δn at the waveguide-substrate interface. Generally, the position of the focused input laser beam can be m ...
Chirped amplitude modulation ladar for range and
... collimated beam divergence of 20.7 rad to one matching the full-frame receiver's maximum FOV of 7.56 mrad. When collimated, the beam expansion ratio is set by the ratio of the telescopes focal length (1016 mm) to the transmitter focusing lens focal length (16 mm) and is 63.5 X. Thus, the output bea ...
... collimated beam divergence of 20.7 rad to one matching the full-frame receiver's maximum FOV of 7.56 mrad. When collimated, the beam expansion ratio is set by the ratio of the telescopes focal length (1016 mm) to the transmitter focusing lens focal length (16 mm) and is 63.5 X. Thus, the output bea ...