Lens equation for flat lenses made with hyperbolic
... propagating waves carrying subwavelength details. The conjugate points for such a lens are however located right on the interfaces of the structure, which leads to place both object and image at the vicinity of the hyperbolic lens interfaces. This is also required to obtain subwavelength resolved im ...
... propagating waves carrying subwavelength details. The conjugate points for such a lens are however located right on the interfaces of the structure, which leads to place both object and image at the vicinity of the hyperbolic lens interfaces. This is also required to obtain subwavelength resolved im ...
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 ...
Image Formation by Spherical Lenses
... Spherical Lens : It is the segment of a sphere, and it refracts rays of light equally in all meridians.. Concave Lens: A concave lens causes light to spread out or diverge in which the reflecting surface curves inward. Convex Lens : A convex lens is a lens that is curved outward. The ends ...
... Spherical Lens : It is the segment of a sphere, and it refracts rays of light equally in all meridians.. Concave Lens: A concave lens causes light to spread out or diverge in which the reflecting surface curves inward. Convex Lens : A convex lens is a lens that is curved outward. The ends ...
lens shape - CVI Laser Optics
... For imaging at unit magnification (s = s" = 2f), a similar analysis would show that a symmetric biconvex lens is the best shape. Not only is spherical aberration minimized, but coma, distortion, and lateral chromatic aberration exactly cancel each other out. These results are true regardless of mate ...
... For imaging at unit magnification (s = s" = 2f), a similar analysis would show that a symmetric biconvex lens is the best shape. Not only is spherical aberration minimized, but coma, distortion, and lateral chromatic aberration exactly cancel each other out. These results are true regardless of mate ...
Optical Term Definitions
... Let us imagine that rays originating at the front focal point F (and therefore parallel to the optical axis after emergence from the opposite side of the lens) are singly refracted at some imaginary surface, instead of twice refracted (once at each lens surface) as actually happens. There is a uniqu ...
... Let us imagine that rays originating at the front focal point F (and therefore parallel to the optical axis after emergence from the opposite side of the lens) are singly refracted at some imaginary surface, instead of twice refracted (once at each lens surface) as actually happens. There is a uniqu ...
Exposure and Imaging
... – The best lenses used in projection lithography have NA = 0.3 - 0.4 – A lens with NA = 0.50 is a f/1.00 lens: its focal length and effective diameter are the same! – The largest NA lenses ever made were a NA = 0.54 and a NA = 0.60 by Nikon. ...
... – The best lenses used in projection lithography have NA = 0.3 - 0.4 – A lens with NA = 0.50 is a f/1.00 lens: its focal length and effective diameter are the same! – The largest NA lenses ever made were a NA = 0.54 and a NA = 0.60 by Nikon. ...
Cameras for Stereo Panoramic Imaging - CS
... This paper presents two possibilities for capturing stereo panoramic images using optics, without any moving parts. A special mirror is introduced such that viewing the scene through this mirror creates the same rays as those used with the rotating cameras. Such a mirror enables the capture of stere ...
... This paper presents two possibilities for capturing stereo panoramic images using optics, without any moving parts. A special mirror is introduced such that viewing the scene through this mirror creates the same rays as those used with the rotating cameras. Such a mirror enables the capture of stere ...
“Beam Paths” to the “Microscope”
... 3) Light rays that enter the lens from the focal point exit parallel to the optical axis. f ...
... 3) Light rays that enter the lens from the focal point exit parallel to the optical axis. f ...
L and M notes
... find it. Peter is 1.25 m tall and is 0.80 m away from a light source. He then sees his shadow on a screen which is 1.50 m away from him. What is the height of his shadow? (Hint - use similar triangles.) ...
... find it. Peter is 1.25 m tall and is 0.80 m away from a light source. He then sees his shadow on a screen which is 1.50 m away from him. What is the height of his shadow? (Hint - use similar triangles.) ...
Microscope
... simple microscope with only one lens to examine blood, yeast, insects and many other tiny objects. Leeuwenhoek was the first person to describe bacteria, and he invented new methods for grinding and polishing microscope lenses that allowed for curvatures providing magnifications of up to 270 diamete ...
... simple microscope with only one lens to examine blood, yeast, insects and many other tiny objects. Leeuwenhoek was the first person to describe bacteria, and he invented new methods for grinding and polishing microscope lenses that allowed for curvatures providing magnifications of up to 270 diamete ...
Stops, Pupils, Field Optics and Cameras
... primary for a refractor) is imaged by the relay lens. For thermal IR systems, this stop is a cold baffle that prevents unwanted thermal radiation (such as from the ground) from reaching the detector. ...
... primary for a refractor) is imaged by the relay lens. For thermal IR systems, this stop is a cold baffle that prevents unwanted thermal radiation (such as from the ground) from reaching the detector. ...
![Spherical mirrors in the paraxial approximation [Pages 181-187]. Assignment 2](http://s1.studyres.com/store/data/008539460_1-d375c81ee0822c3c0b88887d5bbb056f-300x300.png)
Spherical mirrors in the paraxial approximation [Pages 181-187]. Assignment 2
... the positive lens) or use a collimated laser beam. In this formula either f1 or f2 could be the focal length of the diverging lens. If the first lens is the positive lens then the separation distance d must be less than f1=fp (i.e., d < fp) regardless the power of the lenses. If the first lens is th ...
... the positive lens) or use a collimated laser beam. In this formula either f1 or f2 could be the focal length of the diverging lens. If the first lens is the positive lens then the separation distance d must be less than f1=fp (i.e., d < fp) regardless the power of the lenses. If the first lens is th ...
Refraction
... • Another type of aberration is called chromatic aberration, which is similar to what happens in a prism. ...
... • Another type of aberration is called chromatic aberration, which is similar to what happens in a prism. ...
Exercise 13 Geometrical and Technical Optics WS 2013/2014
... Then, take the paraxial image point (for this take in a) a very small numerical aperture and calculate the focus) at 96.43 mm behind the back surface as new point light source and trace in free space up to the DOE plane. There, calculate again the phase function (im). Finally, calculate the phase f ...
... Then, take the paraxial image point (for this take in a) a very small numerical aperture and calculate the focus) at 96.43 mm behind the back surface as new point light source and trace in free space up to the DOE plane. There, calculate again the phase function (im). Finally, calculate the phase f ...
Lab 6: Thin Lenses
... screen too close to the lens. Simulate this by moving the white retina screen closer to the lens, to the position labeled “FAR.” (c) Describe what happens to the image. This is what a far sighted person sees when trying to look at a near object. Now have the eye model ‘look’ at the far away light so ...
... screen too close to the lens. Simulate this by moving the white retina screen closer to the lens, to the position labeled “FAR.” (c) Describe what happens to the image. This is what a far sighted person sees when trying to look at a near object. Now have the eye model ‘look’ at the far away light so ...
Scope Definitions
... 1/4 inch at 100 yards, respectively. MOA is a more convenient term, however, since it is not tied to a particular distance. Parallax n. Viewing error that represents the reticle and the target as being parallel, not in line. Parallax is influenced by two factors, the angle of the viewer's eye, and t ...
... 1/4 inch at 100 yards, respectively. MOA is a more convenient term, however, since it is not tied to a particular distance. Parallax n. Viewing error that represents the reticle and the target as being parallel, not in line. Parallax is influenced by two factors, the angle of the viewer's eye, and t ...
Presentation
... They presented a focus-switching device for 3D head mounted displays. A twisted nematic (TN) cell liquid crystal is used as polarization switch to control the optical path length through the system. Different polarization state leads to different path length in the proposed optical system, which in ...
... They presented a focus-switching device for 3D head mounted displays. A twisted nematic (TN) cell liquid crystal is used as polarization switch to control the optical path length through the system. Different polarization state leads to different path length in the proposed optical system, which in ...
(19) United States
... FIGS. 2C and 2D respectively shoW reconstructed images acquired via the re?ective and refractive spheres of FIGS. 2A-2B after refocusing according to the method 106. [0031] For the tWo arrays, We respectively use a 12 MP Canon Rebel XSI camera With 300 mm lens, and a 22 MP ...
... FIGS. 2C and 2D respectively shoW reconstructed images acquired via the re?ective and refractive spheres of FIGS. 2A-2B after refocusing according to the method 106. [0031] For the tWo arrays, We respectively use a 12 MP Canon Rebel XSI camera With 300 mm lens, and a 22 MP ...
Intraocular Lenses
... plate is proportional to , so different colors focus at different distances from the zone plate. Ordinary refractive lenses have chromatic aberration as well, but much less pronounced than zone plates. For example: +10 D lens made of glass with an Abbe number of 30 (high dispersion) has CA ~ 0.3 D ...
... plate is proportional to , so different colors focus at different distances from the zone plate. Ordinary refractive lenses have chromatic aberration as well, but much less pronounced than zone plates. For example: +10 D lens made of glass with an Abbe number of 30 (high dispersion) has CA ~ 0.3 D ...
Test of Istar 150mm f15 achromatic refractor
... Using also the Barlow lens for each arcsecond there are 5.865 pixels. For doing the test Aberrator [1] will be used in order to compare actual images with computed images. In order to have the same characteristis, images generated by means of Aberrator have 11, 73 pixels for each arcsecond (Aberrato ...
... Using also the Barlow lens for each arcsecond there are 5.865 pixels. For doing the test Aberrator [1] will be used in order to compare actual images with computed images. In order to have the same characteristis, images generated by means of Aberrator have 11, 73 pixels for each arcsecond (Aberrato ...
Can Fermat`s Principle accurately predict lens focusing? - TEM-EELS
... reduces ΔfD by more than a factor of 2. To compare with the value given by Fermat’s Principle, we must recognise that our Fermat image distances are measured relative to the mid-plane of the lens whereas a thick-lens image distance is measured relative to the rear principal plane. For a symmetrical ...
... reduces ΔfD by more than a factor of 2. To compare with the value given by Fermat’s Principle, we must recognise that our Fermat image distances are measured relative to the mid-plane of the lens whereas a thick-lens image distance is measured relative to the rear principal plane. For a symmetrical ...
Waves & Oscillations Physics 42200 Spring 2013 Semester Lecture 30 – Geometric Optics
... • All you need to know about a lens is its focal length ...
... • All you need to know about a lens is its focal length ...
Concave Lenses and Mirrors
... In this part of the experimental tutorial you will determine the focal length of a converging lens then observe the change when the same lens is used in conjunction with a diverging lens. Measuring this change accurately will enable you to calculate the focal length of the diverging lens. Select a ...
... In this part of the experimental tutorial you will determine the focal length of a converging lens then observe the change when the same lens is used in conjunction with a diverging lens. Measuring this change accurately will enable you to calculate the focal length of the diverging lens. Select a ...
Lenses form images by refracting light.
... from the camera lens, which means the image formed is upside down and smaller. If the penguin were between one and two focal lengths away from a convex lens, the image formed would be upside down and larger. Overhead projectors form this type of image, which is then turned right side up by a mirror ...
... from the camera lens, which means the image formed is upside down and smaller. If the penguin were between one and two focal lengths away from a convex lens, the image formed would be upside down and larger. Overhead projectors form this type of image, which is then turned right side up by a mirror ...
Camera
A camera is an optical instrument for recording images, which may be stored locally, transmitted to another location, or both. The images may be individual still photographs or sequences of images constituting videos or movies. The word camera comes from camera obscura, which means ""dark chamber"" and is the Latin name of the original device for projecting an image of external reality onto a flat surface. The modern photographic camera evolved from the camera obscura. The functioning of the camera is very similar to the functioning of the human eye.