Chromatic and Monochromatic Aberrations
... This approximation allows us to derive classic equations like V = P + U. This approximation is valid for small incident and refracted angles but as you go further from the axis of a lens, or as the object gets bigger, this approximation does not hold anymore. Equations based on the Gauss approximati ...
... This approximation allows us to derive classic equations like V = P + U. This approximation is valid for small incident and refracted angles but as you go further from the axis of a lens, or as the object gets bigger, this approximation does not hold anymore. Equations based on the Gauss approximati ...
optical fibre communication
... communication fibres. This means collecting light from one source and transferring that light to the optical fibre. This demands COUPLING light from core to the fibre, in a efficient way. Larger light sources are generally easy to align with fibres, but their lower intensity generally delivers less ...
... communication fibres. This means collecting light from one source and transferring that light to the optical fibre. This demands COUPLING light from core to the fibre, in a efficient way. Larger light sources are generally easy to align with fibres, but their lower intensity generally delivers less ...
On geometric optics and surface waves for light scattering by spheres
... waves within an absorbing particle. In this paper, we have investigated applicability of the RBR approach to a homogeneous sphere and compared the scattering and absorption results to those computed from the exact Lorenz–Mie theory. We found substantial differences in the results between the two for ...
... waves within an absorbing particle. In this paper, we have investigated applicability of the RBR approach to a homogeneous sphere and compared the scattering and absorption results to those computed from the exact Lorenz–Mie theory. We found substantial differences in the results between the two for ...
A Coaxial Optical Scanner for Synchronous Acquisition of 3D
... in the same raster grid. Although we still must register 3D scans to one another, we avoid the more difficult 2D-3D registration problem, thereby improving final model quality. Support for a wide range of materials and shapes. We seek a system that provides unbiased measurements of shape and reflect ...
... in the same raster grid. Although we still must register 3D scans to one another, we avoid the more difficult 2D-3D registration problem, thereby improving final model quality. Support for a wide range of materials and shapes. We seek a system that provides unbiased measurements of shape and reflect ...
BioE 123 Teaching Material Stanford University
... In this example, we also use vectors to represent the direction of light wavefronts (see red vectors, wavefronts are in blue in diagram at right). These are “light rays.” The bending of light at interfaces between materials results in shifting in the direction of wavefronts and thus it is easy to us ...
... In this example, we also use vectors to represent the direction of light wavefronts (see red vectors, wavefronts are in blue in diagram at right). These are “light rays.” The bending of light at interfaces between materials results in shifting in the direction of wavefronts and thus it is easy to us ...
Phys Chp 10
... called the principal axis (PA). If a lens is thin, a group of rays parallel to the principal axis is refracted through a point on the principal axis called the principal focus (F ). The focal length ( f ) is the distance between the principal focus and the optical centre, measured along the principa ...
... called the principal axis (PA). If a lens is thin, a group of rays parallel to the principal axis is refracted through a point on the principal axis called the principal focus (F ). The focal length ( f ) is the distance between the principal focus and the optical centre, measured along the principa ...
Chapter 3: prisms
... A prism is a transparent medium limited by plane refractive surfaces that are not parallel. In this course, we will only consider prisms made of homogeneous and isotropic media. There are other types of prisms made of birefringent material (Wollaston, Rochon) that modify the polarization state of li ...
... A prism is a transparent medium limited by plane refractive surfaces that are not parallel. In this course, we will only consider prisms made of homogeneous and isotropic media. There are other types of prisms made of birefringent material (Wollaston, Rochon) that modify the polarization state of li ...
Ray Optics - Sakshi Education
... 26. Principal focus : When rays of light parallel to the principal axis strike a spherical mirror, they either focus at a point or appear to diverge from a point on the principal axis after reflection. This point is known as principal focus (F). 27. Focal length : The distance between the pole and t ...
... 26. Principal focus : When rays of light parallel to the principal axis strike a spherical mirror, they either focus at a point or appear to diverge from a point on the principal axis after reflection. This point is known as principal focus (F). 27. Focal length : The distance between the pole and t ...
Principles and Clinical Applications of Ray-Tracing
... ABSTRACT: The visual quality of the eye depends on several optical and neural factors. In the nineteenth century, Helmholtz found optical errors that could not be corrected using existing optical theory. In the process of image formation in the human eye there are three major sources of degradation: ...
... ABSTRACT: The visual quality of the eye depends on several optical and neural factors. In the nineteenth century, Helmholtz found optical errors that could not be corrected using existing optical theory. In the process of image formation in the human eye there are three major sources of degradation: ...
Interactive Rendering of Translucent Deformable Objects
... 1. Introduction In our daily life, we are surrounded by many translucent objects, such as milk, marble, wax, skin, paper, and so on. The translucency is caused by light entering the material and scattering inside it. This subsurface scattering diffuses the incident light, making small surface detail ...
... 1. Introduction In our daily life, we are surrounded by many translucent objects, such as milk, marble, wax, skin, paper, and so on. The translucency is caused by light entering the material and scattering inside it. This subsurface scattering diffuses the incident light, making small surface detail ...
Cladding
... • In this fiber, the light rays travel at different speeds in different parts. • Near the surface RI is least so, the light rays travel faster compared to the light rays near the axis. Because of this all the rays almost arrive at the same time at the other end of the fiber. ...
... • In this fiber, the light rays travel at different speeds in different parts. • Near the surface RI is least so, the light rays travel faster compared to the light rays near the axis. Because of this all the rays almost arrive at the same time at the other end of the fiber. ...
A Beam Tracing Approach to Acoustic Modeling for Interactive Virtual Environments
... by approximating each beam by its medial axis ray for intersection and mirror operations [36], possibly splitting rays as they diverge with distance [31, 42]. In this case, the beam representation is only useful for modeling the distribution of rays/energy with distance and for avoiding large tolera ...
... by approximating each beam by its medial axis ray for intersection and mirror operations [36], possibly splitting rays as they diverge with distance [31, 42]. In this case, the beam representation is only useful for modeling the distribution of rays/energy with distance and for avoiding large tolera ...
INTRODUCTORY OPTICS SYSTEM
... In our day to day life, we rarely concern ourselves with light, except perhaps when there is too much or not enough of it. We interact with light that has interacted with objects to determine such things as the color, shape, and position of the objects. We use this information to navigate, and to fi ...
... In our day to day life, we rarely concern ourselves with light, except perhaps when there is too much or not enough of it. We interact with light that has interacted with objects to determine such things as the color, shape, and position of the objects. We use this information to navigate, and to fi ...
Manual - Brown University Wiki
... In our day to day life, we rarely concern ourselves with light, except perhaps when there is too much or not enough of it. We interact with light that has interacted with objects to determine such things as the color, shape, and position of the objects. We use this information to navigate, and to fi ...
... In our day to day life, we rarely concern ourselves with light, except perhaps when there is too much or not enough of it. We interact with light that has interacted with objects to determine such things as the color, shape, and position of the objects. We use this information to navigate, and to fi ...
doc - UBC ECE
... Lecture notes for January 12, 2001 Aliasing and Antialiasing Since the resolution of a screen is limited, we can see jaggies (or staircases) on a line drawn using the algorithms described before. This undesirable effect is due to the all-ornothing approach to scan conversion. This phenomenon is call ...
... Lecture notes for January 12, 2001 Aliasing and Antialiasing Since the resolution of a screen is limited, we can see jaggies (or staircases) on a line drawn using the algorithms described before. This undesirable effect is due to the all-ornothing approach to scan conversion. This phenomenon is call ...
and the matrix
... which is consistent with that used in this book. The subject of geometrical optics starts with the laws of refraction and reflection for transparent media. It is then a question of using these laws to discover the properties of various optical systems which may contain any number of curved refractin ...
... which is consistent with that used in this book. The subject of geometrical optics starts with the laws of refraction and reflection for transparent media. It is then a question of using these laws to discover the properties of various optical systems which may contain any number of curved refractin ...
Ch 03 - Aberrations
... In Chap. 2 we discussed the image-forming characteristics of optical systems, but we limited our consideration to an infinitesimal threadlike region about the optical axis called the paraxial region. In this chapter we will consider, in general terms, the behavior of lenses with finite apertures and ...
... In Chap. 2 we discussed the image-forming characteristics of optical systems, but we limited our consideration to an infinitesimal threadlike region about the optical axis called the paraxial region. In this chapter we will consider, in general terms, the behavior of lenses with finite apertures and ...
PowerPoint presentation pptx file
... ray-traced rendering engine based on NVIDIA® OptiX™ technology. You can now simply and quickly design realistic geometric text and shapes in 3D space, eliminating the traditional time-consuming back and forth with external 3D tools. This new ray-tracing feature becomes truly interactive with NVIDIA ...
... ray-traced rendering engine based on NVIDIA® OptiX™ technology. You can now simply and quickly design realistic geometric text and shapes in 3D space, eliminating the traditional time-consuming back and forth with external 3D tools. This new ray-tracing feature becomes truly interactive with NVIDIA ...
Lab 6: Thin Lenses
... Try it, see if you were right, and report on your results. (e) Insert the black plastic ‘pupil’ into slot A. This simulates squinting or a closed-up pupil in bright light. How does this affect the image? Part 4B: The Human Eye – Nearsightedness and Farsightedness For this station, we’ll use a fixed ...
... Try it, see if you were right, and report on your results. (e) Insert the black plastic ‘pupil’ into slot A. This simulates squinting or a closed-up pupil in bright light. How does this affect the image? Part 4B: The Human Eye – Nearsightedness and Farsightedness For this station, we’ll use a fixed ...
Physics for Scientists & Engineers 2
... ! Assume that a light ray parallel to the optical axis is incident on a concave glass lens ! At the surface of the lens, the light rays are refracted toward the normal ! When the rays leave the lens, they are refracted away from the normal as shown ! The extrapolated line shown as a red and black da ...
... ! Assume that a light ray parallel to the optical axis is incident on a concave glass lens ! At the surface of the lens, the light rays are refracted toward the normal ! When the rays leave the lens, they are refracted away from the normal as shown ! The extrapolated line shown as a red and black da ...
Dynamic lighting system for specular surface inspection
... and repeatability and is able to provide a defect measurement to classify the industrial parts quality. This work aims at detecting surface defects on reflecting industrial parts. The objects to be controlled are highly reflective and so, act as perfect mirrors. Surface defects are dents, bumps and ...
... and repeatability and is able to provide a defect measurement to classify the industrial parts quality. This work aims at detecting surface defects on reflecting industrial parts. The objects to be controlled are highly reflective and so, act as perfect mirrors. Surface defects are dents, bumps and ...
Lec03 - nptel
... as shown in figure 3.6. Consequently, at the output, skew rays will have minimum energy at the axis of the optical fiber and it will gradually increase towards the periphery of the core. Thus when light energy is launched into an optical fiber, there arises two possible energy distributions; one, wh ...
... as shown in figure 3.6. Consequently, at the output, skew rays will have minimum energy at the axis of the optical fiber and it will gradually increase towards the periphery of the core. Thus when light energy is launched into an optical fiber, there arises two possible energy distributions; one, wh ...
Approximate Algebraic Methods for Curves and Surfaces and
... In order to fully exploit the potential of both representations, efficient and robust algorithms for conversion between them are needed. The existing exact techniques (which are restricted to the cases of rational curves/surfaces and to scalar fields which are defined by polynomials) from algebraic ...
... In order to fully exploit the potential of both representations, efficient and robust algorithms for conversion between them are needed. The existing exact techniques (which are restricted to the cases of rational curves/surfaces and to scalar fields which are defined by polynomials) from algebraic ...
Approximating Dynamic Global Illumination in Image Space
... of implementation. While physically correct illumination computes the integral over a product of visibility and illumination for every direction, AO computes a product of two individual integrals: one for visibility and one for illumination. For static scenes, AO allows to pre-compute visibility and ...
... of implementation. While physically correct illumination computes the integral over a product of visibility and illumination for every direction, AO computes a product of two individual integrals: one for visibility and one for illumination. For static scenes, AO allows to pre-compute visibility and ...
Ray tracing (graphics)
In computer graphics, ray tracing is a technique for generating an image by tracing the path of light through pixels in an image plane and simulating the effects of its encounters with virtual objects. The technique is capable of producing a very high degree of visual realism, usually higher than that of typical scanline rendering methods, but at a greater computational cost. This makes ray tracing best suited for applications where the image can be rendered slowly ahead of time, such as in still images and film and television visual effects, and more poorly suited for real-time applications like video games where speed is critical. Ray tracing is capable of simulating a wide variety of optical effects, such as reflection and refraction, scattering, and dispersion phenomena (such as chromatic aberration).