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unit 29: reflection and mirrors
unit 29: reflection and mirrors

... (e) Remove the mirror and the pins and trace the rays to the mirror location and then extend the line behind the mirror location until the extrapolated rays meet. The point behind the mirror where the extrapolated rays meet is called the image point I. If you traced rays from the pin to your eye at ...
Translation-invariant object recognition system using an optical correlator and a super-
Translation-invariant object recognition system using an optical correlator and a super-

Design for a Compact Tunable Ti:Sapphire Laser.
Design for a Compact Tunable Ti:Sapphire Laser.

EVERYDAY ENGINEERING EXAMPLES FOR SIMPLE CONCEPTS
EVERYDAY ENGINEERING EXAMPLES FOR SIMPLE CONCEPTS

... Did you find any materials that let some light through? ...
Tapered Fiber Fabrication
Tapered Fiber Fabrication

Stops:  Finite nature of lenses affects the energy and... and imaged by optical systems
Stops: Finite nature of lenses affects the energy and... and imaged by optical systems

The Dizzying Depths of the Cylindrical Mirror
The Dizzying Depths of the Cylindrical Mirror

... to the back line’s depth would project a horizontal segment. If the lens were focused at an intermediated distance, an oval shape would be projected on the retina.11 We suspect that the eye compromises and focuses at a point between the line images where each axis is equally well focused. This is ca ...
Inexpensive optical tweezers for undergraduate laboratories
Inexpensive optical tweezers for undergraduate laboratories

... w trap will have the minimal value, but the intensity and the intensity gradient will be lower than for d obj'D obj . The diameter of the output of our lasers was smaller than D obj , so we used a telescope, formed by lenses L 1 and L 2 , to transform the output of the laser into a collimated beam w ...
Synopsis by Lori Moore
Synopsis by Lori Moore

... together, but they found that the frequency response of the tools used for each measurement limit their ability to join the PSD’s. They are addressing this problem by experimentally measuring the Optical Transfer Function, OTF, of each instrument. OTF describes the instruments ability to measure a g ...
About Optical Fiber - University of Vaasa
About Optical Fiber - University of Vaasa

... • The Cladding surronds or cover the core and is designed to prevent light loss from the fiber. • Since the light can only travel in one direction over the optical cable, two fibers are required to support full duplex operations • Light enter into the core and its cladding along the fiber ...
Double-pass acousto-optic modulator system
Double-pass acousto-optic modulator system

Cladding
Cladding

... Single Mode Step Index fiber The RI is constant for the core in this fiber. As we go radically from center of the core, the RI undergoes a step change at core-cladding interface . The core diameter of this fiber is about 8 to 10µm and the outer diameter of cladding is 60 to 70µm. There is only one ...
Refraction - School
Refraction - School

... The ray within the block hits the side at a large angle of incidence: if this angle is large enough, the entire ray reflects and stays inside the block This is TOTAL INTERNAL REFLECTION This happens inside an optical fibre ...
4-2 Optical Heterodyne Detection for 60- GHz-Band Radio-on
4-2 Optical Heterodyne Detection for 60- GHz-Band Radio-on

Beam steering with spatial light modulators: Quantisation effects
Beam steering with spatial light modulators: Quantisation effects

... A. Beam steering with spatial light modulators Phase-only spatial light modulators are used in beam steering. In order to do that, holograms are encoded to the SLM, producing different beam’s directions. Holograms are pixel images defined by grey levels. The electronics of the SLM converts the value ...
ABET Syllabi OPE classes - UAH Department of Electrical and
ABET Syllabi OPE classes - UAH Department of Electrical and

... 1. Students will become familiar with interference and diffraction phenomena. 2. Student become familiar with spatial Fourier transform properties of lenses. 3. Students will learn the principles of holography. b. Criterion 3 Outcome Addressed by this Course In this course the student will have to s ...
System for measuring a radiation pattern of the light source
System for measuring a radiation pattern of the light source

... for stepper motors to make it more suitable for our application. This firmware also contains a library for communication with workstation, which is used to receive commands for required stepper motor position. Because the “Marlin” code is used with applying a linear movement in 3D printer applicatio ...
Ali BAZZI - ShareStudies.com
Ali BAZZI - ShareStudies.com

... greater than that of the lower energy level (i.e. N2 > N1). This condition, which is known as population inversion ...
Assignment 1A
Assignment 1A

... coin is placed at the bottom ofa tall container in the diagram. A person looks into the container so that his line of sight includes point P above the coin, and he cannot see the coin. When water is slowly poured into the container, the person suddenly sees the coin when the water reaches a certain ...
Optical fibers are not affected by interference
Optical fibers are not affected by interference

Optical Cavity for the Strontium Lattice Atomic Clock
Optical Cavity for the Strontium Lattice Atomic Clock

A short introduction to light and electron microscopy
A short introduction to light and electron microscopy

... then re-emitted as visible light or as heat. Objects or molecules that absorb light transiently and quickly reemit it as longer wavelength light are described as being phosphorescent or fluorescent depending on the time required for re-emission. Light can be scattered by small particles and structur ...
OPTICAL FILTER COATINGS
OPTICAL FILTER COATINGS

... maximum. This occurs when the optical path difference is an integral number of whole wavelengths, i.e., when mλ = 2topcosθ where m is an integer, often termed the order, top is the optical thickness, and θ is the angle of incidence. At other wavelengths, destructive interference of transmitted wavef ...
Novel methods used to test large flat mirrors
Novel methods used to test large flat mirrors

... The most accurate 2m-diameter flat mirror in the world was made using new surface-measurement techniques in concert with software that simulates polishing processes. The main issue faced when manufacturing a high-accuracy large flat mirror is measurement accuracy. It is difficult to measure a large ...
optical flow using color information: preliminary
optical flow using color information: preliminary

... to use all channels of a tri-chromatic image. Tests have been made with the proposed method only using two color channels: YU, YV or UV. The results have shown differences of 5% maximum in the number of valid measures between the three options of choice. In comparison to the test with the three chan ...
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Harold Hopkins (physicist)

Harold Horace Hopkins FRS (1918–1994) was a renowned British physicist. His Wave Theory of Aberrations, (published by Oxford University Press 1950), is central to all modern optical design and provides the mathematical analysis which enables the use of computers to create the wealth of high quality lenses available today. In addition to his theoretical work, his many inventions are in daily use throughout the world. These include zoom lenses, coherent fibre-optics and more recently the rod-lens endoscopes which 'opened the door' to modern key-hole surgery. He was the recipient of many of the world's most prestigious awards and was twice nominated for a Nobel Prize. His citation on receiving the Rumford Medal from the Royal Society in 1984 stated: ""In recognition of his many contributions to the theory and design of optical instruments, especially of a wide variety of important new medical instruments which have made a major contribution to clinical diagnosis and surgery.""
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