与 «FOCAL DISTANCE»相关的英语书籍
在以下的参考文献中发现
focal distance的用法。与
focal distance相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Low Vision Rehabilitation: A Practical Guide for ...
The focal distance of a lens is the distance at which the lens brings parallel rays
to a sharp focus (Figure 5-5). It is the distance between the lens and the point
focus. The point or plane at which the lens focuses light is called the focal point of
...
Mitchell Scheiman, Maxine Scheiman, Steven Whittaker,
2007
2
Lenses and Waves: Christiaan Huygens and the Mathematical ...
As the angle of Figure 15 Focal distance of a plano-convex lens Kepler began
with a discussion deviation is one third of this, HG will be refracted towards F,
with AC:AF = 1 :2.71 The focal distance is therefore approximately three times the
...
Fokko Jan Dijksterhuis,
2006
3
The Elementary Parts of Dr. Smith's Compleat System of ...
aperture directly, as the fourth power of the focal distance of the object-metal
inversely, and as the square of the focal distance of the eye-glass inversely \ ^.
E. D. a Art. 223. 233. Corol. In reflecting telescopes a given object appears
equally ...
4
The Edinburgh encyclopaedia
□Cl □ and, consequently, we have, by substitution, the magnifying power"
StxFG that is Multi/ily the focal distance of the great sfieculum by the distance of
the small mirror from the image next the eye, [as formed in the anterior focus of
the ...
5
Institutes of Natural Philosophy: Theoretical and Practical
as the distance of the image from the object-glass, to its distance from the eye-
glass ; that is, by what has been just proved, as the focal distance of the object-
glass, to the focal distance of the eyeglass. Consequently, if MF, the focal
distance of ...
William Enfield, Samuel Webber,
1820
6
Deep Space Flight and Communications: Exploiting the Sun as ...
8.7 FOCAL DISTANCE VS. HEIGHT AND MINIMAL FOCAL DISTANCE FOR ANY
ASSIGNED FREQUENCY It is entirely under our control to select the frequency (
or frequencies) on which a given FOCAL spacecraft will be able to look at the ...
7
Basic Principles of Fresnel Antenna Arrays
The zone radii were computed using Eq. (1.17) and were based on the focal
distance of 0.5λ . The zone size was kept constant for each simulation. The focal
distance spacing was increased from 0.5 to 0.7λ in steps of 0.05λ . Figure 3.9
shows ...
Igor V. Minin, Oleg V. Minin,
2008
8
Mechanics. Optics.-v. 2. Hydrostatics. Astronomy
... from the eyeglass. What is the most convenient situation for the eye to be
placed in> shall be shewn hereafter. a 74. An astronomical telescope will not
magnify an objecl unless the principal focal distance of the object-glass is greater
than ...
9
System of Natural Philosophy
What is the most convenient situation for the eye to be placed in, shall be shewn
hereafter. 1 74. An astronomical telescope will not magnify an object unless the
principal focal distance of the object-glass is greater than the principal focal ...
10
Foundations of Low Vision: Clinical and Functional Perspectives
The image point of a lens is determined by measuring the distance from the lens
to the point where the rays converge, commonly referred to as the focal distance (
FD). The focal distance depends on two factors: the distance the object is away ...
Anne Lesley Corn, Jane N. Erin,
2010
包含词语«FOCAL DISTANCE»的新条目
找出国内和国际出版社所讨论的内容，以及词语
focal distance在以下新条目的上下文中是如何使用的。
Trioplan 100mm f/2.8 Rebirth will Bring 'Soap Bubble' Bokeh to …
The new Trioplan will have the same 100mm focal distance as well as an f/2.8 f-stop created by fifteen aperture blades. Mounts will be ... «PetaPixel, 七月 15»
ALPS - Bi-directional autofocus actuator for cameras in mass …
... a frequently used focal distance (position) and adjusts focus by moving the lens from that point in one direction or the other (bi-directionally) ... «Electropages, 七月 15»
Apple's iPhone 6-Plus Optical Image Stabilization Invention Comes …
... it is common to incorporate miniature cameras, with `optical image stabilization` (OIS) using magnetic coils, whereby the object focal distance ... «Patently Apple, 七月 15»
Rembrandt 3D Launches 4K HD No-Glasses 3D Screens
"One of the key improvements of our new 4K lens design is that it holds a tight 3D focus over the entire focal distance of the image. «Digital Signage Connection, 七月 15»
Nikon AF-S NIKKOR 600mm f/4E FL ED VR
... consider the AF-S NIKKOR 600mm f/4E FL ED VR, which provides the ultimate in fast-aperture and focal distance for challenging subjects. «PhotographyBLOG, 七月 15»
Rembrandt 3D Launches 4K HD No Glasses 3D Screens …
... observed: "One of the key improvements of our new 4K lens design is that it holds a tight 3D focus over the entire focal distance of the image. «Virtual-Strategy Magazine, 六月 15»
EnergyTorrent Releases Open-Source Documentation Of Its Solar …
Changing concentrator size and focal distance is just a matter of mastering the basics of the Rhinoceros CAD suite and installing some plug-ins ... «CleanTechnica, 六月 15»
Mastering Depth of Field
A closer focal distance results in a smaller depth of field, while a longer focal distance results in a larger depth of field. In others words, to isolate ... «Fstoppers, 六月 15»
Leica Q boasts a full frame sensor and fixed 28-mm F1.7 lens
In addition to its aperture and focus rings the lens features a focus tab and a Macro mode ring which reduces the minimal focal distance from 30 ... «Gizmag, 六月 15»
Oculus Rift official release window and details announced
Oculus Rift will have a dial for adjusting lens focal distance. The headset's design has been updated to better accommodate glasses. Oculus ... «Phandroid.com, 六月 15»