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Lab 2: Abbe Theory of Imaging
Lab 2: Abbe Theory of Imaging

... Carry out experiments in sequence with square mesh object as shown in Table 2. Place the square mesh in vertical orientation. Mark the locations of the Fourier image dots which are on the x- and y-axis with a white paper pasted on an index card. These locations will be useful to make various spatial ...
image
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... A flat mirror always produces a virtual image Geometry can be used to determine the properties of the image There are an infinite number of choices of direction in which light rays could leave each point on the object Two rays are needed to determine where an image is formed ...
PowerPoint (PPT) One: The theories of light in historical perspective
PowerPoint (PPT) One: The theories of light in historical perspective

... about 340 m/s. Are the air particles moving with such speed, or it is something else that travels that fast? What type of motion do air molecules undergo when sound passes through air? Is a “medium” necessary for the propagation of a wave? What waves do not need a medium? Phase relationship between ...
PowerPoint (PPT) One: The theories of light in historical perspective
PowerPoint (PPT) One: The theories of light in historical perspective

... about 340 m/s. Are the air particles moving with such speed, or it is something else that travels that fast? What type of motion do air molecules undergo when sound passes through air? Is a “medium” necessary for the propagation of a wave? What waves do not need a medium? Phase relationship between ...
All Facts for Choosing LED Optics Correctly
All Facts for Choosing LED Optics Correctly

... For all modern small light sources with one to four dies and a primary lens, the best solution to use, from optical point of view, always is a lens. The explanation, why a lens is the best, is simple: in a lens, the beam can be controlled very well. There are at least three surfaces for use, while f ...
optics(conceptuals)
optics(conceptuals)

... Q.46 Draw ray diagrams to show how a right angled isosceles prism can be used to (i) deviate the ray through 180 (ii) deviate the ray through 90 (iii) invert the rays. Q.47 What is the nature and size of the image formed by a concave mirror when the object is placed between its pole and focus? Dra ...
Multiple side imaging and measurement at 90
Multiple side imaging and measurement at 90

... orthonormal views of an object are provided by a telecentric lens through an array of mirrors. The optical path is designed so that the displacement angle between the views is exactly 90°; this optical layout ensures complete coverage of the object lateral surface. Furthermore, telecentric imaging m ...
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to Light

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Location of Cardinal Points from the ABCD Matrix for the General
Location of Cardinal Points from the ABCD Matrix for the General

... surface to the next. Furthermore, the overall performance of the system is often more apparent when the system is represented as its ABCD matrix. In the next example we will consider the properties of a two lens system by analyzing its ABCD matrix. Two Thin Lenses Consider now a system composed of t ...
Optics Observations
Optics Observations

... Optics Observations • Pinholes, apertures and diffraction • Lenses, lensmaker and depth of focus ...
Flanged Sample Compartment Flanged Beam Splitter Holder
Flanged Sample Compartment Flanged Beam Splitter Holder

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RADAR CROSS-SECTION STUDIES OF SPHERICAL LENS
RADAR CROSS-SECTION STUDIES OF SPHERICAL LENS

... a spherical lens, 2 r1 /λ. The realistic electrical size at microwaves for practical SLRs varies within the range 5 ≤ 2r1 /λ ≤ 200, though our code enables us to advance into the extremely deep optical region where the parameter 2 r1 /λ may take values up to 10000 (k0 r1 ∼ 30000). The dielectric con ...
Fourier domain optical coherence tomography with an
Fourier domain optical coherence tomography with an

... Recently, Fourier domain optical coherence tomography (FD OCT) has attracted significant interest because of its improved sensitivity and imaging speed when compared to time domain OCT (TD OCT). Axial and lateral resolutions of FD OCT are also determined by the source coherence length and the numeri ...
Basic Optics - Lynn`s Lecture Help
Basic Optics - Lynn`s Lecture Help

... Light is converted to electrical impulses which are sent through the optic nerve... ...
Optics Ic
Optics Ic

... the image quality. Slowly open the aperture and notice changes that occur after a certain aperture size – lots of stray light, which reduces the contrast in the image. This is spherical aberration. The outer edges of the lens are not focusing light properly on the image. Examine these effects with t ...
Convex Mirrors
Convex Mirrors

... • Diamond (index of refraction = 2.42), causes significant refraction. ...
File
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... 10. Violet light is incident on a converging lens of focal length f. State with reason, how focal length of a lens will change, if violet is is replaced by a red light. 11. Two convex lenses of same focal length but of aperture 5 cm and 10 cm are used as objective lenses in two astronomical telescop ...
Daily Quizzes for Laser Technology
Daily Quizzes for Laser Technology

... Lenses are used to direct __________. laser light ordinary light incandescent light both ordinary and incandescent light ...
PowerPoint Lecture - UCSD Department of Physics
PowerPoint Lecture - UCSD Department of Physics

... • M = f1/f2; in this picture, f1 = 48; f2 = 12; M = 4; s’ = 15 ...
To determine the wavelength of a monochromatic source of light
To determine the wavelength of a monochromatic source of light

... plate of glass by suitable grinding and polishing, the obtuse angle of the prism (which is only slightly less than 1800). The optical bench consists of two metal rails graduated accurately in millimeters. The bench is provided with the three metal uprights which can slide along the rails and their p ...
Modulation Transfer Function
Modulation Transfer Function

... Figure 1: Illustration of diffraction of light passing through an aperture, seen as wavefronts. Diffraction follows from the wave nature of light, and implies that any concentration of light, like a beam or light passing through an aperture, will spread. It places a fundamental limit on the spot siz ...
Microscopes:
Microscopes:

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6288-18 talk - LOFT, Large Optics Fabrication and Testing group
6288-18 talk - LOFT, Large Optics Fabrication and Testing group

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Slide 1

... Image shift has same effect as change of line of sight direction (defined as where the system is looking) ...
Solution to PHYS 1112 In-Class Exam #1A
Solution to PHYS 1112 In-Class Exam #1A

... involved in forming the image, refraction occurs at the front and at the rear surface of the lens; both of these surfaces are interfaces between the lens material (e.g., glass) and the surrounding medium. By Snell’s law, the angles of refraction at both surfaces depend on both the index of refractio ...
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Lens (optics)



A lens is a transmissive optical device that affects the focus of a light beam through refraction. A simple lens consists of a single piece of material, while a compound lens consists of several simple lenses (elements), usually along a common axis. Lenses are made from transparent materials such as glass, ground and polished to a desired shape. A lens can focus light to form an image, unlike a prism, which refracts light without focusing. Devices that similarly refract radiation other than visible light are also called lenses, such as microwave lenses or acoustic lenses.
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