OPTI 517 Image Quality
... collected by a single circular or square detector to the total amount of energy that reaches the image plane from that object point – This is a popular metric for system engineers who, reasonably enough, want a certain amount of collected energy to fall on a single pixel – It is commonly used for sy ...
... collected by a single circular or square detector to the total amount of energy that reaches the image plane from that object point – This is a popular metric for system engineers who, reasonably enough, want a certain amount of collected energy to fall on a single pixel – It is commonly used for sy ...
Lecture 25: Lithography
... proximity aligners are preferable, though there is a slight loss of resolution due to scattering of light in the gap. Some sort of soft contact contact aligners are also available. There are different modes of projection, as shown in figure ...
... proximity aligners are preferable, though there is a slight loss of resolution due to scattering of light in the gap. Some sort of soft contact contact aligners are also available. There are different modes of projection, as shown in figure ...
Generation of diffractive optical elements onto a photopolymer using a
... beam; we block all the orders except -1 and +1. One of the two orders impinges on the exposed zone (illuminated by the Nd-YVO4 laser) and the other one impinges on the non-exposed zone. The distance between the two orders is about 1 cm, so as to eliminate the influence of the monomer diffusion in th ...
... beam; we block all the orders except -1 and +1. One of the two orders impinges on the exposed zone (illuminated by the Nd-YVO4 laser) and the other one impinges on the non-exposed zone. The distance between the two orders is about 1 cm, so as to eliminate the influence of the monomer diffusion in th ...
Geometrical Optics 101: Paraxial Ray Tracing
... Location is 5mm in front of the first lens (the first thickness value) Image (Surface 6) Size is 18.2554mm in diameter (twice the final chief ray height) Location is 115.4897mm behind the final lens surface (the last thickness value) It is important to note that the Surface 0 chief ray height is pos ...
... Location is 5mm in front of the first lens (the first thickness value) Image (Surface 6) Size is 18.2554mm in diameter (twice the final chief ray height) Location is 115.4897mm behind the final lens surface (the last thickness value) It is important to note that the Surface 0 chief ray height is pos ...
Galileoscope Optics Guide - Teaching with Telescopes
... GO: Light Through a Convex Lens 1. Shine the laser through the block. Starting at the left side of the block, slowly slide the laser to the right. Have the students observe how the spot on the screen moves. 2. Now replace the glass block with the positive lens. Place the laser so the beam goes thro ...
... GO: Light Through a Convex Lens 1. Shine the laser through the block. Starting at the left side of the block, slowly slide the laser to the right. Have the students observe how the spot on the screen moves. 2. Now replace the glass block with the positive lens. Place the laser so the beam goes thro ...
Handout Building the demonstration refractor tube
... telescope tube. The inner tube at most moves into the outer tube enough so that the negative eyepiece lens will focus. At most it moves out far enough so the positive eyepiece lens will come into focus. Both the negative and positive eyepieces are positioned relative to the focal length of the big o ...
... telescope tube. The inner tube at most moves into the outer tube enough so that the negative eyepiece lens will focus. At most it moves out far enough so the positive eyepiece lens will come into focus. Both the negative and positive eyepieces are positioned relative to the focal length of the big o ...
HS-SCI-CP -- Chapter 15- Interference and
... waves are able to bend around the corner. In a similar fashion, water waves bend around obstacles, such as the barriers shown in Figure 10. Light waves can also bend around obstacles, but because of their short wavelengths, the amount they bend is too small to be easily observed. If light traveled o ...
... waves are able to bend around the corner. In a similar fashion, water waves bend around obstacles, such as the barriers shown in Figure 10. Light waves can also bend around obstacles, but because of their short wavelengths, the amount they bend is too small to be easily observed. If light traveled o ...
Get PDF - OSA Publishing
... been derived in different forms [3, 4, 1, 11]. Although these derivations differ, their results are consistent. An important feature of the Debye-Wolf integral is that it requires the pupil plane to be in infinity which is the case for the vast majority of high NA objective lenses as these are desi ...
... been derived in different forms [3, 4, 1, 11]. Although these derivations differ, their results are consistent. An important feature of the Debye-Wolf integral is that it requires the pupil plane to be in infinity which is the case for the vast majority of high NA objective lenses as these are desi ...
Gain and Loss Factor for Conical Horns, and Impact of Ground
... aperture. The reduction in gain due to the amplitude and phase tapers across the horn aperture is represented by the aperture efficiency, which is the product of the taper efficiency and phase efficiency. The taper efficiency represents the uniformity of the amplitude distribution of the field over ...
... aperture. The reduction in gain due to the amplitude and phase tapers across the horn aperture is represented by the aperture efficiency, which is the product of the taper efficiency and phase efficiency. The taper efficiency represents the uniformity of the amplitude distribution of the field over ...
Wave Optics Theory and 3-D Deconvolution for the Light Field
... the native image plane as shown in Fig. 2(a). Light field imaging can be performed using any microscope objective so long as the f-number of the microlens array is matched to the numerical aperture of the objective [1]. The camera sensor is placed behind the lenslets at a distance of one lenslet foc ...
... the native image plane as shown in Fig. 2(a). Light field imaging can be performed using any microscope objective so long as the f-number of the microlens array is matched to the numerical aperture of the objective [1]. The camera sensor is placed behind the lenslets at a distance of one lenslet foc ...
Airy disk
In optics, the Airy disk (or Airy disc) and Airy pattern are descriptions of the best focused spot of light that a perfect lens with a circular aperture can make, limited by the diffraction of light. The Airy disk is of importance in physics, optics, and astronomy.The diffraction pattern resulting from a uniformly-illuminated circular aperture has a bright region in the center, known as the Airy disk which together with the series of concentric bright rings around is called the Airy pattern. Both are named after George Biddell Airy. The disk and rings phenomenon had been known prior to Airy; John Herschel described the appearance of a bright star seen through a telescope under high magnification for an 1828 article on light for the Encyclopedia Metropolitana:...the star is then seen (in favourable circumstances of tranquil atmosphere, uniform temperature, &c.) as a perfectly round, well-defined planetary disc, surrounded by two, three, or more alternately dark and bright rings, which, if examined attentively, are seen to be slightly coloured at their borders. They succeed each other nearly at equal intervals round the central disc....However, Airy wrote the first full theoretical treatment explaining the phenomenon (his 1835 ""On the Diffraction of an Object-glass with Circular Aperture"").Mathematically, the diffraction pattern is characterized by the wavelength of light illuminating the circular aperture, and the aperture's size. The appearance of the diffraction pattern is additionally characterized by the sensitivity of the eye or other detector used to observe the pattern.The most important application of this concept is in cameras and telescopes. Owing to diffraction, the smallest point to which a lens or mirror can focus a beam of light is the size of the Airy disk. Even if one were able to make a perfect lens, there is still a limit to the resolution of an image created by this lens. An optical system in which the resolution is no longer limited by imperfections in the lenses but only by diffraction is said to be diffraction limited.