«ACHROMATIC LENS»に関連する英語の本
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1
A History of the Photographic
Lens
The Dallmeyer Triple Achromatic lens. Triplet or Architectural View Lens in 1859
by mounting a negative element in the central stop of an achromatized Periscopic
lens. Any of these efforts could have anticipated the famous Cooke Triplet, but ...
2
Handbook of Optical Design, Third Edition
If we design an achromatic lens, as shown in Figure 4.2, with two different types
of glass, the two selected wavelengths (frequently C and F) will have the same
focal length, but it will be different for all other colors. The focal length as a
function ...
Daniel Malacara-Hernández, Zacarías Malacara-Hernández, 2013
From this equation, the following conclusions may be drawn (i) CO, andu>2 are
positive quantities, therefore/, and/2 must be of opposite sign. Hence in
achromatic lens combination if one lens is convex, the other must be concave. (ii)
The two ...
4
Optical Principles and Technology for Engineers
An ultraviolet achromatic lens can be designed using two fused silica elements. A
plano-convex fused silica lens with a 10.54 mm radius of curvature of the convex
surface and a thickness of 3.25 mm has a focal length of 20.77 mm at 250 nm.
5
Springer Handbook of Lasers and Optics
In this section some important optical instruments such as the achromatic lens,
the camera, the human eye, the telescope and the microscope will be discussed.
However, this will be done in some cases quite briefly because there are many ...
6
Illustrated Dictionary of Practical Astronomy
achromatic doublet See achromatic lens. achromatic lens A lens in which the
chromatic aberration has been reduced compared with that to be expected from a
simple lens. The first achromat was invented by Chester Moor Hall in 1733 and ...
7
Philosophical Transactions
Having thus shown the origin of the negative achromatic lens, I may be allowed
to state the motives and reasonings which guided me in the computation of the
curves, and what appears to me to constitute the advantages it is found to
possess.
Royal Society (Great Britain), 1834
An achromatic lens system (achromat is a compound lens of one lens each of flint
- and crown glass, figure 102) is nearly free of chromatic aberration. It can be
completely free of it only for two spectral colours, e.g. for red and blue. For the
other ...
9
Competition Science Vision
An achromatic lens doublet is formed by placing in contact a convex lens of focal
length 20 cm and a concave lens of focal length 30 cm. The dispersive power of
the material of the convex lens is 0.18. Determine — (a) The dispersive power of
...
10
Competition Science Vision
An achromatic lens is strictly true only for the two wavelengths e.g., red and violet.
Other colours may be present in very small amounts. So the system is not
achromatic for all colours at a time. • In achromatic combination the lenses are ...
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Focusing ultrashort laser pulses with achromatic doublets
... thus designed an apochromatic doublet to show that this lens increases the pulse-peak intensity produced by the equivalent achromatic lens. «SPIE Newsroom, 5月 15»
Back Through the Pages
Price 30/- with Single Achromatic Lens, or 50/- with Anastigmal Lens. Oother Kodaks from 5/- upwards in stock; also Easignette & Klito Cameras ... «Andover Advertiser, 4月 15»
Color Correction With An Ultra-Thin Lens
... faithful transmission and manipulation of colored images without a bulky conventional achromatic lens. This opens important prospects in the ... «Asian Scientist Magazine, 3月 15»
Aspheric Lenses
Hybrid Molding – Hybrid molding begins with a standard spherical surface, such as an achromatic lens, which is then pressed onto a thin layer of photopolymer ... «Photonics.com, 2月 15»
Microspectroscopy Enables Real-Time Imaging of Singlet Oxygen
In the NIR path, the signal passes through a combination of NIR longpass and shortpass filters (F) and is focused by an achromatic lens (L2) onto the entrance ... «Photonics.com, 1月 15»
USHIO America Introduces Takumi-2000 Xenon Followspot
An achromatic lens and advanced iris gives a sharp-edged and uniform spot. The optical system was optimized to increase the maximum light ... «PR Web, 11月 14»
Microscale IR thermography
Cheaper IR imaging systems can thus be realized. Our design includes an achromatic lens for microscale imaging, video signal superimposed ... «SPIE Newsroom, 5月 14»
The Better to See You With
They enable the building of achromatic lens systems, where light of different wavelengths would be focused together. This allows multiple optical paths to be ... «Photonics.com, 4月 14»
Seeing the Skies Through Galileo's Eyes
And until the mass production of the achromatic lens around 1775, they couldn't correct for the fact that different wavelength of light refract at ... «Science News, 2月 14»
Kowa Genesis XD33 Prominar 8x33
... this technology creates a bright image with high contrast and colour reproduction that cannot be achieved with a normal achromatic lens. «ePHOTOzine, 11月 10»
