Chapter 5: Geometrical Optics
... Image: If a cone of rays emitted from a point source S arrives at a certain point P, then P is called the image of S. Diffraction-limited image: The size of the image for a point source is not zero. The limited size of an optical system causes the blur of the image point due to diffraction: ...
... Image: If a cone of rays emitted from a point source S arrives at a certain point P, then P is called the image of S. Diffraction-limited image: The size of the image for a point source is not zero. The limited size of an optical system causes the blur of the image point due to diffraction: ...
Week4-figs
... Historical Development: Ray Optics → Wave Optics → EM Optics → Quantum Optics. • Ray Optics is an approximation of Wave Optics in which wavelength short compared to other dimensions (focal lengths, diameter of optical components, etc.) so that Diffraction can be ignored. ...
... Historical Development: Ray Optics → Wave Optics → EM Optics → Quantum Optics. • Ray Optics is an approximation of Wave Optics in which wavelength short compared to other dimensions (focal lengths, diameter of optical components, etc.) so that Diffraction can be ignored. ...
Zach Stephen Richard Worhatch Royce Grewer
... where n is the index of refraction of the medium in which the lens is working, and θ is the half-angle of the maximum cone of light that can enter or exit the lens. r = 1.22λ/(NA(obj) + NA(cond)) Where r is resolution (the smallest resolvable distance between two objects) and λ is the wavelength ...
... where n is the index of refraction of the medium in which the lens is working, and θ is the half-angle of the maximum cone of light that can enter or exit the lens. r = 1.22λ/(NA(obj) + NA(cond)) Where r is resolution (the smallest resolvable distance between two objects) and λ is the wavelength ...
Geometrical Optics and Lenses
... scrutiny. The results we acquired were accurate to within 18 %, except for the test involving the concave mirror where we acquired a 50 % error. The errors for this lab could have been acquired by a few different parameters. A source of error can be credited to the precision of our measurements when ...
... scrutiny. The results we acquired were accurate to within 18 %, except for the test involving the concave mirror where we acquired a 50 % error. The errors for this lab could have been acquired by a few different parameters. A source of error can be credited to the precision of our measurements when ...
Deliverable 9: Blueprints of ICT relevant demonstrators As pointed
... As pointed out in the original PHOME proposal, using chiral metamaterials can be used as thin-film optical isolators. In addition, we have proposed to use photonic metamaterials that can be used as tunable switches at THz frequencies, and finally we have proposed to use photonic metamaterials for el ...
... As pointed out in the original PHOME proposal, using chiral metamaterials can be used as thin-film optical isolators. In addition, we have proposed to use photonic metamaterials that can be used as tunable switches at THz frequencies, and finally we have proposed to use photonic metamaterials for el ...
2 Modeling and Design of Lens Systems
... Sketch: Imaging with a stop at F’ symmetrical cone around the ray parallel to the optical axis! this is true for each object point! Property: object side telecentric This property of the optical system is useful e.g. for measurement tasks: if the image plane is fixed at the position O’ a cha ...
... Sketch: Imaging with a stop at F’ symmetrical cone around the ray parallel to the optical axis! this is true for each object point! Property: object side telecentric This property of the optical system is useful e.g. for measurement tasks: if the image plane is fixed at the position O’ a cha ...
Emerging Trends in Contact Lens Technology Jason Jedlicka, OD
... Trends in Soft Lenses for Irregular Corneas Better materials Should they be in Si Hy only? Better designs Many new designs and more coming What is the difference in all these designs? KC specific vs. Irregular cornea generically Possible higher order aberration technology Trends in Soft Lenses for P ...
... Trends in Soft Lenses for Irregular Corneas Better materials Should they be in Si Hy only? Better designs Many new designs and more coming What is the difference in all these designs? KC specific vs. Irregular cornea generically Possible higher order aberration technology Trends in Soft Lenses for P ...
AY80B Lecture 9
... • Constructing imaging from multiple lenses – Construct image from 1st lens – Add rays that will be useful for the 2nd lens construction (the 3 rays ) – Complete ray tracing with these 3 rays through the 2nd lens to ...
... • Constructing imaging from multiple lenses – Construct image from 1st lens – Add rays that will be useful for the 2nd lens construction (the 3 rays ) – Complete ray tracing with these 3 rays through the 2nd lens to ...
A crash course in optics
... When light enters a new medium, its direction, wavelength and speed changes. Wavelength and speed are highest in vacuum. Def.: index of refraction of a medium: n = c/v (v is speed in medium). Snell’s Law: sin 1 n1 sin 2 ...
... When light enters a new medium, its direction, wavelength and speed changes. Wavelength and speed are highest in vacuum. Def.: index of refraction of a medium: n = c/v (v is speed in medium). Snell’s Law: sin 1 n1 sin 2 ...
Optics-Optical Instruments_ppt_RevW10
... • Lenses and mirrors with spherical surfaces are easy to make and understand, but they do not actually focus all incoming rays to a single point. This effect is called spherical aberration and is responsible for the “fish eye” distortion seen through a clear marble. • Newton understood this effect a ...
... • Lenses and mirrors with spherical surfaces are easy to make and understand, but they do not actually focus all incoming rays to a single point. This effect is called spherical aberration and is responsible for the “fish eye” distortion seen through a clear marble. • Newton understood this effect a ...
Training modules for an advanced interactive course on
... 3.2. The internet version of the same material Material presented on the internet has advantages of the possibility of the use of unlimited colour at no extra cost. It gives the opportunity for the user to flick through images sufficiently fast to give the impression of motion, thereby in effect add ...
... 3.2. The internet version of the same material Material presented on the internet has advantages of the possibility of the use of unlimited colour at no extra cost. It gives the opportunity for the user to flick through images sufficiently fast to give the impression of motion, thereby in effect add ...
Negative refraction - Condensed Matter Theory group
... normal did not lie parallel to the wavevector but at a positive angle to the surface normal in apparent contradiction to Veselago’s predictions, to experiment [8], and to computer simulations [10]. In fact the problem turned out to be not the calculation but its interpretation as was pointed out in ...
... normal did not lie parallel to the wavevector but at a positive angle to the surface normal in apparent contradiction to Veselago’s predictions, to experiment [8], and to computer simulations [10]. In fact the problem turned out to be not the calculation but its interpretation as was pointed out in ...
Properties of Waves
... • Diverging light rays will emerge parallel to one another from a converging lens • The point at which they meet is called the focal point • The distance between the centre of the lens and the focal point is the focal length ...
... • Diverging light rays will emerge parallel to one another from a converging lens • The point at which they meet is called the focal point • The distance between the centre of the lens and the focal point is the focal length ...
1 Light Microscopy
... being either fluorescence or phosphorescence. The emission of light through the fluorescence process is nearly simultaneous with the absorption of the excitation light due to a relatively short time delay between photon absorption and emission, ranging usually less than a microsecond in duration. Wh ...
... being either fluorescence or phosphorescence. The emission of light through the fluorescence process is nearly simultaneous with the absorption of the excitation light due to a relatively short time delay between photon absorption and emission, ranging usually less than a microsecond in duration. Wh ...
Introduction to Light Microscopy Introduction Light microscopes are
... many other disciplines as well. Modern research requires the use of microscopes to observe objects too small to be resolved with the naked eye. Magnification and Resolving Power of Microscopes In the most general sense, lenses are devices for altering the direction of waves or particles (usually pho ...
... many other disciplines as well. Modern research requires the use of microscopes to observe objects too small to be resolved with the naked eye. Magnification and Resolving Power of Microscopes In the most general sense, lenses are devices for altering the direction of waves or particles (usually pho ...
Microscopes:
... Try to avoid high temperatures, direct sunlight, dust, humidity, vibration, rough handling Do NOT use ordinary tissue or even kimwipes to clean objectives (lenses). Rather, use lens paper that is specifically made for that purpose. Do NOT use any oil except the correct microscope oil for oil-immers ...
... Try to avoid high temperatures, direct sunlight, dust, humidity, vibration, rough handling Do NOT use ordinary tissue or even kimwipes to clean objectives (lenses). Rather, use lens paper that is specifically made for that purpose. Do NOT use any oil except the correct microscope oil for oil-immers ...
Lab 5. Spherical Mirrors and Lenses
... evaluate the focal lengths of these lenses. They are actually written on the bottom of the lens holders. However, they are written in disguised Japanese. You may need much more efforts to decode them than measure the focal lengths using the optical methods described below. ...
... evaluate the focal lengths of these lenses. They are actually written on the bottom of the lens holders. However, they are written in disguised Japanese. You may need much more efforts to decode them than measure the focal lengths using the optical methods described below. ...
Thick Lenses and the ABCD Formalism
... focal length. An effective focal length is also often used… Principle Planes are the plane approximations to the locust of points where parallel incident rays would intersect converging exiting rays. There is a primary (on the front side) and a secondary (on the back side) principle plane. These are ...
... focal length. An effective focal length is also often used… Principle Planes are the plane approximations to the locust of points where parallel incident rays would intersect converging exiting rays. There is a primary (on the front side) and a secondary (on the back side) principle plane. These are ...
3 The concept of diffraction limit
... the amplitudes decay rapidly at least in one of the spacial dimensions, thereby making the respective propagation constant complex in general. Thus the propagation constants in the transverse directions, become much larger than the |k| and hence the uncertainty in the λi position can be made compara ...
... the amplitudes decay rapidly at least in one of the spacial dimensions, thereby making the respective propagation constant complex in general. Thus the propagation constants in the transverse directions, become much larger than the |k| and hence the uncertainty in the λi position can be made compara ...
the P3 `bus stop`
... the boundary between two media, they are used to scan foetuses to check up on their development. The time it takes for a narrow beam of ultrasound to return to a detector is measured and used to produce an image. The narrower the beam, the more detail is shown. As different tissues have different de ...
... the boundary between two media, they are used to scan foetuses to check up on their development. The time it takes for a narrow beam of ultrasound to return to a detector is measured and used to produce an image. The narrower the beam, the more detail is shown. As different tissues have different de ...
here - Gonit Sora
... •μ>0, Є<0, being materials not well investigated. •μ<0, Є>0, also being materials not well investigated •μ<0, Є<0, where these materials do not exist naturally(Metamaterials) ...
... •μ>0, Є<0, being materials not well investigated. •μ<0, Є>0, also being materials not well investigated •μ<0, Є<0, where these materials do not exist naturally(Metamaterials) ...
Introduction
... A simple graphical method can also be used to determine paraxial image location and magnification. This graphical approach relies on two simple properties of an optical system. First, a ray that enters the system parallel to the optical axis crosses the optical axis at the focal point. Second, a ray ...
... A simple graphical method can also be used to determine paraxial image location and magnification. This graphical approach relies on two simple properties of an optical system. First, a ray that enters the system parallel to the optical axis crosses the optical axis at the focal point. Second, a ray ...
39 Steps
... larger and dimmer spots. Transmission (the fraction of light incident on the objective that can be focused into a spot on the other side of it) varies with wavelength. Beware of using some relatively new, multicoated optics in IR range. Chromatic and spherical aberration both make the spot bigger, a ...
... larger and dimmer spots. Transmission (the fraction of light incident on the objective that can be focused into a spot on the other side of it) varies with wavelength. Beware of using some relatively new, multicoated optics in IR range. Chromatic and spherical aberration both make the spot bigger, a ...
Ray Optics at a Deep-Subwavelength Scale: A Transformation Optics Approach Seunghoon Han,
... by finding low-loss negative index materials25,26 or introducing gain.27 Considering reverse light propagation from the far field to generate arbitrary deep-subwavelength patterns at the bottom of the transformer, the current amount of loss could be tolerable for other applications like subwavelengt ...
... by finding low-loss negative index materials25,26 or introducing gain.27 Considering reverse light propagation from the far field to generate arbitrary deep-subwavelength patterns at the bottom of the transformer, the current amount of loss could be tolerable for other applications like subwavelengt ...
Superlens
A practical superlens, or super lens, is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is a feature of conventional lenses and microscopes that limits the fineness of their resolution. Many lens designs have been proposed that go beyond the diffraction limit in some way, but there are constraints and obstacles involved in realizing each of them.