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1
Handbook of Optical Design, Third Edition
Unfortunately, this slope is almost the same for any pair of glasses, with the
exception of some fluor-crown glasses and fluorite. Another procedure to obtain
the condition for apochromatism of a doublet can be obtained from Equation 4.29
, ...
Daniel Malacara-Hernández, Zacarías Malacara-Hernández, 2013
2
Watson's Microscope Record
Apochromatism and Other Terms. — So much confusion seems to exist, even at
this day, as to what is understood by the term " apochromatism," that it may be
well to express, in as intelligible a form as possible, the essential qualities which
...
3
Journal of the Royal Microscopical Society
It may be noted, however, that apochromatism is not a great necessity in low-
power objectives. The objectives, of 20 and 35 mm. focus may be used with Zeiss
' compensating eye-piece No. 18, but with such high magnifications a red border
is ...
4
Journal of the Royal Microscopical Society, Containing Its ...
Apochromatism under present conditions required the use of fluorite, a rare
mineral, and one diflicult to work, consequently apochromatics were expensive;
but here we had a lens before us, the optical qualities .of which _were only
slightly ...
Royal Microscopical Society (Great Britain), Sir Frank Crisp, Francis Jeffrey Bell, 1897
5
Chambers concise dictionary
apochromatism n. apocope /a'pDkapi/ >n, phonetics the loss of pronunciation of
the final sound or sounds of a word, either because they are weakly stressed, or
for reasons of economy in colloquial speech, eg television becomes telly, or to ...
Proving once more that apochromatism isn't cheap, this 90-mm ApoRodagon will
list for $600. $60-mm Nikkor-T f/8 (L) and 270-mm Nikkor-T f/5.6 lenses Three
large-format lenses from Nikon previewed at photokina '80 have finally been ...
7
Compression of Biomedical Images and Signals
... open field, lighting, contrast) and its multiple lenses each having a different
numerical aperture, zooming effect, as well as a choice between a flat field and
apochromatism. The camera translates the observer's vision through the
microscope, ...
Amine Nait-Ali, Christine Cavaro-Menard, 2013
8
Choosing and Using a Refracting Telescope
By first exploring the very nature of apochromatism, we then provide a
comprehensive survey of the various genres of Apo refractors currently being
sold, including doublets, triplets, and four-element designs, and discuss the
meritorious ...
9
Aberrations of Optical Systems
... 30 aplanatic component, 160 aplanatic doublet, 237 aplanatic surface, 158
aplanatism, 171 apochromatism, 199 aspheric plate, 234 aspheric surface, 152
aspherics, 58, 61 astigmatism, 123 astigmatism formulae of T. Young, 187
auxiliary ...
10
Star Ware: The Amateur Astronomer's Guide to Choosing, ...
Measuring 3.1 inches in aperture, the Megrez 80 II ED uses an ED element
mixed into a three-lens f/7 objective to bring this scope close to a state of ideal
apochromatism. Examining the Megrez 80 II ED at a recent Northeast Astronomy
Forum, ...
Philip S. Harrington, 2011
