10 ENGLISH BOOKS RELATING TO «AFOCAL»
Discover the use of
afocal in the following bibliographical selection. Books relating to
afocal and brief extracts from same to provide context of its use in English literature.
1
Basic Electro-optics for Electrical Engineers
Afocal telescopes are two-lens systems intended to be used with the object at
infinity. The two lenses are separated by the sum of their focal lengths. The
combination focal length is indeterminate using Eq. (1.13), which is interpreted to
mean ...
2
Optical Imaging and Aberrations: Ray geometrical optics
Besides its use as a telescope or a beam expander, an afocal system can also be
used to change the effective focal length and field of view (which is defined in
Section 2.2.7) of another system by inserting it in the collimated region of the
other ...
Virendra N. Mahajan, 1998
Trial with Aids for Distance Vision Afocal telescopes. Distance-vision aids for low-
vision patients are usually afocal telescopes. An afocal telescope is designed in
such a way that if parallel rays of light enter the objective, parallel rays will ...
Theodore Grosvenor, Theodore P. Grosvenor, 2007
4
Reflecting Telescope Optics I: Basic Design Theory and Its ...
See Tables 2.1 and 2.2. In §2.2.5 above, the use of Gregory or Cassegrain
systems in the afocal (Mersenne) form (Fig. 1.3) was mentioned. Such systems
obey the same magnification laws as the conventional afocal refractor, given in §
2.2.4, ...
5
Bridging the Centuries with SAMPE's Materials and Processes ...
3.1 AFOCAL HOUSING The original afocal housing was fabricated with cast
aluminum having all of the critical final dimensions machined. The afocal housing
consisted of six separate aluminum castings. The first cost savings were
achieved ...
6
Observing the Sun with Coronado™ Telescopes
Afocal Adaptor Afocal photography is also known as “eyepiece projection” and is
the act of taking a photograph through a telescope using an eyepiece. An
adaptor allows the camera to be held near the eyepiece to reduce camera shake.
7
Practical Astrophotography
Most camcorders do not have removable lenses, so to use one with your
telescope, you can utilize the afocal method. As covered in an earlier chapter, the
afocal method is where you simply point your camera lens (or camcorder lens)
into ...
8
Metamaterial Lens Design
counteract the focusing element each of the afocal elements must be relatively
strong and introduce large amounts of aberrations. This is the case in the positive
-index benchmark lens where each of the afocal elements had a focal length of ...
Ralph Hamilton Shepard (III.), 2009
9
Geometrical and Instrumental Optics
There are interferometric eyepieces and eyepieces with moveable pointers. The
filar micrometer eyepiece has a fixed reticle and a moving cross hair, translated
by a micrometer. 4.4. Afocal Systems Afocal systems,* whose power is zero, have
...
10
Evolution's Witness: How Eyes Evolved
Histologic section of afocal compound eye. C, corneal lens; CC, crystalline lens;
Rh, rhabdom; RC, reticular cell. This unusual compound eye has a corneal lens
followed by a crystalline lens. The image is focused from the corneal lens within ...
Ivan R. Schwab, Richard R. Dubielzig, Charles Schobert, 2012
10 NEWS ITEMS WHICH INCLUDE THE TERM «AFOCAL»
Find out what the national and international press are talking about and how the term
afocal is used in the context of the following news items.
BCLA comes together for final annual event
Italian manufacturer Safilens exhibited the Fusio 1day Presbyo lens, an afocal design that incorporates an on-axis induced scotoma area to ... «Optician Online, Jun 15»
Static real-time capture of 3D microscopy images
In our proof-of-concept experiment we inserted an afocal relay into the optical path (see Figure 1). It is easy to show that in such a case the ... «SPIE Newsroom, Apr 15»
Get set for an Easter weekend total lunar eclipse
This afocal method is known as digiscoping, and it is easier than ever to do thanks to live screen previews afforded by modern devices. «Sen, Apr 15»
Laser Interferometer 4D Technology Corp.
An operator can then switch easily to the internal source to measure a wide range of focal and afocal optics. Visit company website · >About this ... «Photonics.com, Mar 15»
iPhone Astrophotography: How to Take Amazing Images of the Sky …
Now simply aiming a camera at the eyepiece of a telescope — known as afocal astrophotography — and shooting without removing the ... «Universe Today, Jan 15»
The Newsom home in SLO: Reconcilable differences
Use it as an accent, such as on afocal wall, or in a small space such as a powder room. Some of Erica Gomez's favorite sources are Tracy ... «The San Luis Obispo Tribune, Dec 14»
North America gets ready for a partial solar eclipse
... the telescope eyepiece, enabling those with camera equipment to image using the prime focus, eyepiece projection or afocal methods. «Astronomy Now Online, Oct 14»
French exoplanet mission ends after seven years
... or CoRoT, mission scanned the sky for six years, watching for planets orbiting stars with a sensitive 10.6-inch Corotel afocal telescope and a ... «Spaceflight Now, Jun 14»
Amazing Manual Trailing of Sirius and More Astrophotos from Pakistan
... Moon — taken 7 hours apart — were shot through Roshaan's telescope with his mobile phone camera using the handheld afocal method! «Universe Today, Jun 14»
Seeing Red: Spectacular Views of this Morning's Total Lunar Eclipse
We've come a long way since the days of film and doing back of the envelope calculations for afocal SLR photography of the Moon, that's for ... «Universe Today, Apr 14»
