1. Horizontal Cable- The cabling between and including the telecommunications outlet and the horizontal cross-connect. 2. Backbone Cable- A cable connection between telecommunications or wiring closets‚ floor distribution terminals‚ entrance facilities‚ and equipment rooms either within or between buildings. 3. Patch Cords- Any flexible piece of cable that connects one network device to the main cable run or to a patch panel that in turn connects to the main cable run. 4. Connectors- A device attached
Premium Optical fiber Electromagnetic radiation Light
Focus On W Wave Front Technology - Part 1 Measuring Eye Aberrations and Correction with Contact Lenses? By John de Brabander‚ PhD‚ FAAO. John de Brabander is Senior Lecturer at the University of Maastricht‚ The Netherlands. His teaching and research assignments involve all aspects of measuring the human visual system in relation to diagnosticprocedures and optical correction.In a series of three articles‚ John will give us the backgrounds we need to understand the basis of wave front
Premium Optics Light Lens
The pictures below show the optics of how this works. The grey circles are water droplets. White light enters the droplet and is refracted‚ then reflected off the back of the droplet‚ before leaving the drop split into its constituent colours‚ again refracted. Some light will travel
Premium Light Refraction Color
optical communication is a kind of communication that use light propagation to send data between two points. Free Space Optics are capable of up to 2.5 Gbps of data‚ voice and video communications through the air‚ allowing optical connectivity without requiring fiber-optic cable or securing spectrum licenses. So we can use LED’s or Laser for transmission data. Free Space Optics (FSO) technology is relatively simple. It’s built on a laser transmitter and a receiver to provide full duplex capability
Premium Light Optical fiber Laser
range. A lens antenna consists of a lens proper and of a feed. The shape of the lens depends on the refractive index n (the ratio of the phase velocity of propagation of a radio wave in a vacuum to that in the lens). A decelerating lens antenna‚ as in optics‚ is one for which n > 1. An accelerating lens antenna (without an optical analogy) is one for which n < 1. The feed is usually a horn antenna that generates a spherical wave front or an antenna array that produces a cylindrical wave front.
Premium Optics Wave Electromagnetic radiation
Electricity Electromagnetic Oscillations and Waves Diffraction and polarization of microwaves 4.5.06-00 What you can learn about … Diffraction Focal point Linearity Circularly and elliptically polarized waves Transverse waves Polarizer and Analyzer Constructive and destructive interference Principle: The equivalence between visible light and microwaves as special cases of the total spectrum of electromagnetic waves can be demonstrated using diffraction and polarization of
Premium Electromagnetic radiation Optics Maxwell's equations
Introduction to Electron Microscopy Prof. David Muller‚ dm24@cornell.edu Rm 274 Clark Hall‚ 255-4065 Ernst Ruska and Max Knoll built the first electron microscope in 1931 (Nobel Prize to Ruska in 1986) T4 Bacteriophage Electron Microscopy bridges the 1 nm – 1 μm gap David Muller 2008 between x-ray diffraction and optical microscopy Tools of the Trade AFM MFM Scanned Probe Microscope (includes Atomic Force Microscope) Transmission Electron Microscope Scanning Electron
Premium Electron microscope Electron Microscope
different isotropic media‚ such as water and glass. • It’s also commonly known as ’’The Law Of Refraction’’ What is light : How is light propagated through different optic medium? • Light is the natural agent that stimulates sight and makes things visible; electromagnetic radiation from about 390 to 740 nm in wavelength. • In optics‚ Snel’s Law is used to calculate the path of waves to compute the angles of incidence and refraction. • The law is also used in metamaterials‚ which allows light
Premium Refraction Snell's law Refractive index
To find Refractive Indices of Water And Turpentine Oil using a plane mirror‚ a equiconvex lens (made from a glass of known refractive index) and an adjustable object needle APPARATUS: A convex lens‚ an optical needle‚ a plane mirror‚ a clamp stand‚ a spherometer‚ a plumb line‚ metre scale‚ water and turpentine oil Theroy : Let’s add small amount of water on a flat‚ plane surface and place a convex lens over it. This forms a plano-concave lens of water between the lower surface of convex lens and
Premium Optics Lens Refractive index
type are parabolic reflectors‚ found in optical devices such as reflecting telescopes that need to image distant objects‚ since spherical mirror systems‚ like spherical lenses‚ suffer from spherical aberration. One advantage that mirror optics have over lens optics is that mirrors do not introduce chromatic aberration. * | Convex mirrors A convex mirror diagram showing the focus‚ focal length‚ centre of curvature‚ principal axis‚ etc. A convex mirror‚ fish eye mirror or diverging mirror‚ is
Premium Mirror Optics Mirrors