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Telescopes.
Telescopes.

... components made of different kinds of glass and brings the two different wavelengths to the same focus. Other wavelengths are still out of focus. ...
Experimental studies of far-field superlens for sub-diffractional optical imaging
Experimental studies of far-field superlens for sub-diffractional optical imaging

The Influence of Optical Projection on 17th Century Art
The Influence of Optical Projection on 17th Century Art

... optical projection and pass it on to the young. Kemp (1990) offers a different view; he says that art historians refuse to take on the question lest they reveal that their favorite artists were “cheating.” There is a modern stigma associated with cheating, although I suspect it was not such a big is ...
Microscopes - OpenStax CNX
Microscopes - OpenStax CNX

... Although the eye is marvelous in its ability to see objects large and small, it obviously has limitations to the smallest details it can detect. Human desire to see beyond what is possible with the naked eye led to the use of optical instruments. In this section we will examine microscopes, instrume ...
lecture 5 infrared spectrometry
lecture 5 infrared spectrometry

... A photodiode array can measure an entire spectrum at once. The spectrum is spread into its component wavelength and each wavelength is directed onto one detector element. ...
Sluggish light for radio-frequency true-time-delay
Sluggish light for radio-frequency true-time-delay

... prisms. These schemes require an additional spatial dimension for manipulating different optical frequencies by applying appropriate linear phase factors with a prism or tilted mirror, and these are not suitable for beam forming of two-dimensional (2D) RF phased-array antennas that have already used ...
Optical Properties of Condensed Matters
Optical Properties of Condensed Matters

... Most types of glasses are made of silica (SiO2) with other chemicals. Insulator, all the characteristic features crystalline insulators, the trans range from around 200 nm to beyond 2000 nm; Small absorption and scattering losses; n changes by less than 1% over the whole visible spectral region; Che ...
Download PDF
Download PDF

lens theory - Laser Components
lens theory - Laser Components

... Germany and other countries: LASER COMPONENTS GmbH, Phone: +49 8142 2864 0, Fax: +49 8142 2864 11, [email protected] USA: LASER COMPONENTS IG, Inc., Phone: +1 603 821 7040, Fax: +1 603 821 7041, [email protected] Great Britain: LASER COMPONENTS (UK) Ltd., Phone: +44 1245 491 499, Fax: ...
Location of Cardinal Points from the ABCD Matrix for the General
Location of Cardinal Points from the ABCD Matrix for the General

... First Focal Plane: The first focal plane is in the left hand space of the optical system, which by our convention corresponds to the object space of the imaging system. The intersection of the first focal plane with the optical axis is the first focal point F1. Rays originating from this point will ...
Physics II - Magnetism
Physics II - Magnetism

Lecture 14: Lenses
Lecture 14: Lenses

Near-field optical micromanipulation
Near-field optical micromanipulation

... Optical guiding and/or trapping particle with evanescent waves ...
12Sept_Synergist Solutions article
12Sept_Synergist Solutions article

... particles using focusing optics. The higher the concentration of particles, the higher the amount of light scattered from the particles. The resulting scattered light from the particles is collected by the collecting optics—an assembly of lenses or a mirror. The collecting optics transfer the colle ...
Photo Acoustic Effect And it`s usage for spectroscopy
Photo Acoustic Effect And it`s usage for spectroscopy

... immunity to scattering effects  May work in various wavelengths  Signal depends on various characteristics of medium in addition to absorption (heat capacity, acoustic velocity) that may be used to improve detection  Depends on light intensity derivative – may be used with short pulses that have ...
Supplementary material-Heat Transfer MoS2-PZL
Supplementary material-Heat Transfer MoS2-PZL

... than heat transfer along the opposite direction and results in a net heat flow from high temperature object to low temperature object. The total radiative heat transfer between two objects is given by:1 H  ...
1051-733-20092 Homework #1 Due 12/09/2000 (W)
1051-733-20092 Homework #1 Due 12/09/2000 (W)

Optical Coherence Tomography Brochure
Optical Coherence Tomography Brochure

... Optical Coherence Tomography is a new medical high-resolution imaging technology which offers distinct advantages over current medical imaging technologies and is attracting a large number of researchers. Provides non-scientists and non-engineers basic understanding of Optical Coherence Tomography a ...
IOSR Journal of Applied Physics (IOSR-JAP)
IOSR Journal of Applied Physics (IOSR-JAP)

... 12 µm. the design results show that the optimum optical performance can be obtained by our proposed approach, so the modulation transfer function (MTF) at Nyquist frequency above 0.5 and closed to diffraction limit, and diameter of geometrical blur image less than detector unit cell (pixel) and conc ...
Biology 3235: Resolution and magnification of a light microscopes
Biology 3235: Resolution and magnification of a light microscopes

... expressed as a function of the wavelength of light (λ) and the numerical aperture (NA) of the objective and condenser lenses: R = 0.6 λ \ NA As you can see from this formula, objectives with a larger numerical aperture give greater resolving power (they can resolve smaller details). For example: a 1 ...
EXTERNAL MODULATION
EXTERNAL MODULATION

PLASUS EMICON Series
PLASUS EMICON Series

... Process control is essential in industrial plasma applications to ensure reliability and high quality of the process. Here, optical emission spectroscopy is a first choice technique since it does not affect the plasma and since real-time monitoring of several plasma species is possible. The EMICON s ...
Waves and Radiation
Waves and Radiation

Transmission Electron Microscopy -TEM
Transmission Electron Microscopy -TEM

... waves. Ruska was aware that magnetic fields affect electron trajectories, possibly focusing them as optical lenses do to light. After confirming these principles he set out to design the electron microscope, which he knew would be much more powerful than an ordinary optical microscope since electron ...
Lenses, the eye and other applications of light
Lenses, the eye and other applications of light

... The doctor looks through the eyepiece to see inside the patient’s stomach. ...
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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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