Vigirix and Toroids
... against earth faults due to insulation failures. Typical applications include telephone relay and radio repeater stations. In the event of a transient fault, this system can be used to automatically restore the supply of electrical power to an unattended station, thereby increasing availability and ...
... against earth faults due to insulation failures. Typical applications include telephone relay and radio repeater stations. In the event of a transient fault, this system can be used to automatically restore the supply of electrical power to an unattended station, thereby increasing availability and ...
Optical fiber cables[edit]
... electrical cables such as standard category 5 Ethernet cabling, which typically runs at 100 Mbit/s or 1 Gbit/s speeds. Fiber is also immune to electrical interference; there is no crosstalk between signals in different cables, and no pickup of environmental noise. Nonarmored fiber cables do not cond ...
... electrical cables such as standard category 5 Ethernet cabling, which typically runs at 100 Mbit/s or 1 Gbit/s speeds. Fiber is also immune to electrical interference; there is no crosstalk between signals in different cables, and no pickup of environmental noise. Nonarmored fiber cables do not cond ...
Modern Optical Engineering
... A new, simple, and easily understood derivation of the conservation of brightness and radiance has been added. New or expanded tables of brightness, illumination, and reflectance have been included, and the searchlight figure is improved. New equations for telescope (or afocal) component powers, eye ...
... A new, simple, and easily understood derivation of the conservation of brightness and radiance has been added. New or expanded tables of brightness, illumination, and reflectance have been included, and the searchlight figure is improved. New equations for telescope (or afocal) component powers, eye ...
tb70.pdf
... Intrinsic jitter is the jitter created by the device itself. To test intrinsic jitter, Altera Applications configured APEX 20KE and Virtex-E devices with PLLs or DLLs in 2× mode. A 50-MHz low-jitter clock was applied to the clock input of the devices, and the output jitter was measured on each devic ...
... Intrinsic jitter is the jitter created by the device itself. To test intrinsic jitter, Altera Applications configured APEX 20KE and Virtex-E devices with PLLs or DLLs in 2× mode. A 50-MHz low-jitter clock was applied to the clock input of the devices, and the output jitter was measured on each devic ...
Navy Electricity and Electronics Training Series
... and your overall course score is below 3.2, you will be given the opportunity to resubmit failed assignments. You may resubmit failed assignments only once. Internet students will receive notification when they have failed an assignment--they may then resubmit failed assignments on the web site. Int ...
... and your overall course score is below 3.2, you will be given the opportunity to resubmit failed assignments. You may resubmit failed assignments only once. Internet students will receive notification when they have failed an assignment--they may then resubmit failed assignments on the web site. Int ...
TECHNICAL GUIDE
... significant. More important are the corresponding losses in image contrast and lens resolution caused by reflected ghost images (usually defocused) superimposed on the desired image. Applications generally require that the reflected portion of incident light approach zero for transmitting optics (le ...
... significant. More important are the corresponding losses in image contrast and lens resolution caused by reflected ghost images (usually defocused) superimposed on the desired image. Applications generally require that the reflected portion of incident light approach zero for transmitting optics (le ...
UNIVERSIDAD DE MURCIA ABERRACIONES EN LENTES OFTÁLMICAS DE POTENCIA
... cirugía ocular, se practican diferentes técnicas, como la cirugía refractiva multifocal. En personas con cataratas, al reemplazar el cristalino por lentes intraoculares, se puede optar por diferentes opciones, como monovisión, lentes mulltifocales, y últimamente también se está experimentando con le ...
... cirugía ocular, se practican diferentes técnicas, como la cirugía refractiva multifocal. En personas con cataratas, al reemplazar el cristalino por lentes intraoculares, se puede optar por diferentes opciones, como monovisión, lentes mulltifocales, y últimamente también se está experimentando con le ...
Modeling Moiré: Visual Beat Effects in Nature and Optical Metrology
... varied in a ratio that could be changed by the user, so that the resulting ellipses were truly concentric. In the second, the semi-major axis was kept the same, but the semi-minor axis was varied, creating a grating that looked like a cat’s eye. Figures 2 (b) and 2 (c) show the screenshots of the M ...
... varied in a ratio that could be changed by the user, so that the resulting ellipses were truly concentric. In the second, the semi-major axis was kept the same, but the semi-minor axis was varied, creating a grating that looked like a cat’s eye. Figures 2 (b) and 2 (c) show the screenshots of the M ...
Full-Text PDF
... a chromium (Cr) or titanium (Ti) adhesion layers (2–5 nm). For light with a wavelength of 632 or 658 nm, the Cr/Au and Ti/Au films exhibit low-sensitivity with large full width at half maximum (FWHM) values of approximately 3°[9–11]. However, these conventional SPR sensors (Cr/Au) can cause problems ...
... a chromium (Cr) or titanium (Ti) adhesion layers (2–5 nm). For light with a wavelength of 632 or 658 nm, the Cr/Au and Ti/Au films exhibit low-sensitivity with large full width at half maximum (FWHM) values of approximately 3°[9–11]. However, these conventional SPR sensors (Cr/Au) can cause problems ...
How to become a KNX certified training centre
... A light power circuit with two or three switches can be only implemented with special circuits For more than three switches relays must be used. KNX Association International ...
... A light power circuit with two or three switches can be only implemented with special circuits For more than three switches relays must be used. KNX Association International ...
Theoretical modeling and evaluation of the axial resolution of the
... The computation of the axial resolution involves three stages: 共1兲 computing the single-pass PSF on the retina, 共2兲 reimaging the PSF in the retina to the confocal pinhole plane, and 共3兲 computing the amount of light that passes through the confocal pinhole 共which depends on the pinhole size兲. An un ...
... The computation of the axial resolution involves three stages: 共1兲 computing the single-pass PSF on the retina, 共2兲 reimaging the PSF in the retina to the confocal pinhole plane, and 共3兲 computing the amount of light that passes through the confocal pinhole 共which depends on the pinhole size兲. An un ...
Bimodal waveguide interferometer device based high sensitive biosensing
... Scheme of a interferometer based on Mach-Zehnder configuration Cosine dependence of interferometric signals. . . . . . . . . . . . Optical arrangement and representation of a Young Interferometric biosensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Schematic of a dual polarization i ...
... Scheme of a interferometer based on Mach-Zehnder configuration Cosine dependence of interferometric signals. . . . . . . . . . . . Optical arrangement and representation of a Young Interferometric biosensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Schematic of a dual polarization i ...
Low-Temperature Bonding for Silicon-Based Micro
... the bonded interface, and (5) low thermomechanical stress in the bonded components. Also, since many optoelectronic systems operate at a temperature lower than the temperatures used for fusion and thermo-compression bonding, the mismatch of coefficient of thermal expansion (CTE) of different materia ...
... the bonded interface, and (5) low thermomechanical stress in the bonded components. Also, since many optoelectronic systems operate at a temperature lower than the temperatures used for fusion and thermo-compression bonding, the mismatch of coefficient of thermal expansion (CTE) of different materia ...
Enhanced 3D spatial resolution in quantitative phase
... Optical microscopy has been widely used for hundred of years for bio-medical imaging. However, most of nonmodified biological samples are transparent at optical wavelengths, leading to low-contrast images when using a conventional intensity-sensitive sensor on a microscope. However, even if the samp ...
... Optical microscopy has been widely used for hundred of years for bio-medical imaging. However, most of nonmodified biological samples are transparent at optical wavelengths, leading to low-contrast images when using a conventional intensity-sensitive sensor on a microscope. However, even if the samp ...
table of content - Photonics North
... Centre for Advances Systems and Technologies in Communications ...
... Centre for Advances Systems and Technologies in Communications ...
Light-Scattering Study of the Normal Human Eye
... resulting time-dependent changes in the electromagnetic characteristics, such as the refractive index of the material, underlie the coupling of the light to the acoustic modes. Conversely, the electric field of an incident light wave can induce spatially varying and temporally periodic elastic strai ...
... resulting time-dependent changes in the electromagnetic characteristics, such as the refractive index of the material, underlie the coupling of the light to the acoustic modes. Conversely, the electric field of an incident light wave can induce spatially varying and temporally periodic elastic strai ...
High-Temperature Operation of Terahertz Quantum Cascade Laser
... through frequency down-conversion in a nonlinear crystal using IR or visible pump lasers [28]–[30]. This approach offers broad spectral tunability; however, it requires powerful pump lasers and a more complicated optical setup, resulting in bulky and unwieldy sources. We have recently demonstrated t ...
... through frequency down-conversion in a nonlinear crystal using IR or visible pump lasers [28]–[30]. This approach offers broad spectral tunability; however, it requires powerful pump lasers and a more complicated optical setup, resulting in bulky and unwieldy sources. We have recently demonstrated t ...
RAY OPTICS NOTES - RIT Center for Imaging Science
... To design optical image-forming systems, we must model the propagation of light from the object (source) to the optic, the action of the optic on the incident light distribution, and finally propagation from the optic to the sensor. The last step of conversion of the spatial (and possibly spectral) ...
... To design optical image-forming systems, we must model the propagation of light from the object (source) to the optic, the action of the optic on the incident light distribution, and finally propagation from the optic to the sensor. The last step of conversion of the spatial (and possibly spectral) ...
Integrated Optic/Nanofluidic Detection Device with Plasmonic Readout
... moving from macro-fluidic to microfluidic tools, sample volumes are reduced, saving money and time in reagent use, and enabling higher resolution detection. However, current integrated lab-on-a-chip devices are limited in their applications by existing architectures and fabrication technologies. New ...
... moving from macro-fluidic to microfluidic tools, sample volumes are reduced, saving money and time in reagent use, and enabling higher resolution detection. However, current integrated lab-on-a-chip devices are limited in their applications by existing architectures and fabrication technologies. New ...
Fiber Optic Lab Manual
... To obtain best results in this activity, you may need to dim the room lights or cover the light guide with a dark cloth or box. This will minimize the chance of ambient light being captured by the phototransistor, and improve the accuracy of your measurements. ...
... To obtain best results in this activity, you may need to dim the room lights or cover the light guide with a dark cloth or box. This will minimize the chance of ambient light being captured by the phototransistor, and improve the accuracy of your measurements. ...
Increasing the Resolution of Far
... microscope focuses accelerated electrons rather than light. The de Broglie wavelength of the electrons can be as small as 0.005 nm and is easily controllable by an acceleration voltage of typically 50-100 kV so that the wave nature of the electrons does hardly play a limiting role. Presently, electr ...
... microscope focuses accelerated electrons rather than light. The de Broglie wavelength of the electrons can be as small as 0.005 nm and is easily controllable by an acceleration voltage of typically 50-100 kV so that the wave nature of the electrons does hardly play a limiting role. Presently, electr ...
Surplus Shed
... bulbs and it appears that the bulb used in the instrument was an expensive mercury or Xenon type with a special mount. We have no way to determine if the system works. However, it's loaded with expensive and valuable components and made in 2001.Model 1001001001 uses the Texas Instrument 1-Chip DLP ( ...
... bulbs and it appears that the bulb used in the instrument was an expensive mercury or Xenon type with a special mount. We have no way to determine if the system works. However, it's loaded with expensive and valuable components and made in 2001.Model 1001001001 uses the Texas Instrument 1-Chip DLP ( ...
Effect of fluoro-polycarbonates containing aliphatic
... because of its rigidity.12 In this study, a series of uoropolycarbonates containing aliphatic segments (AF-Ali-PC EPs) and biphenyl segments (AF-Ar-PC EPs) were synthesized with the intention of investigating the effects of the exibility of the monomers on the characteristics of thermo-optic wavegu ...
... because of its rigidity.12 In this study, a series of uoropolycarbonates containing aliphatic segments (AF-Ali-PC EPs) and biphenyl segments (AF-Ar-PC EPs) were synthesized with the intention of investigating the effects of the exibility of the monomers on the characteristics of thermo-optic wavegu ...
this PDF file - Radio Electronics, Computer Science, Control
... making the use of special type RCD inefficient. The increased level of harmonics leads to an increase of voltage drops on elements connected in series (inductance chokes) built into the electronic equipment of network filters. This can result in the increase of high frequency voltage level and leaka ...
... making the use of special type RCD inefficient. The increased level of harmonics leads to an increase of voltage drops on elements connected in series (inductance chokes) built into the electronic equipment of network filters. This can result in the increase of high frequency voltage level and leaka ...
Estimation of longitudinal resolution in optical coherence
... portance for the ability to resolve small structures in optical coherence imaging such as optical coherence tomography1 and optical coherence microscopy.4 In this paper we investigate optical coherence imaging cases in which the self-coherence function is the determining factor of longitudinal resol ...
... portance for the ability to resolve small structures in optical coherence imaging such as optical coherence tomography1 and optical coherence microscopy.4 In this paper we investigate optical coherence imaging cases in which the self-coherence function is the determining factor of longitudinal resol ...
Night vision device
A night vision device (NVD) is an optoelectronic device that allows images to be produced in levels of light approaching total darkness. The image may be a conversion to visible light of both visible light and near-infrared, while by convention detection of thermal infrared is denoted thermal imaging. The image produced is typically monochrome, e.g. shades of green. NVDs are most often used by the military and law enforcement agencies, but are available to civilian users. The term usually refers to a complete unit, including an image intensifier tube, a protective and generally water-resistant housing, and some type of mounting system. Many NVDs also include optical components such as a sacrificial lens, or telescopic lenses or mirrors. An NVD may have an IR illuminator, making it an active as opposed to passive night vision device.Night vision devices were first used in World War II, and came into wide use during the Vietnam War. The technology has evolved greatly since their introduction, leading to several ""generations"" of night vision equipment with performance increasing and price decreasing. Consequently, they are available for a wide range of applications, e.g. for gunners, drivers and aviators. Another term is ""night optical/observation device"" or NOD.