与 «OPTICAL CROWN»相关的英语书籍
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1
Ceramic and Glass Materials: Structure, Properties and ...
Of these, lead oxide is most often incorporated into optical flints, although it might
also be added to optical crown glass, ophthalmic glass (crown or flint), and
optical filter glass [16]. For example, products in which the presence of lead is
valued ...
James F. Shackelford, Robert H. Doremus, 2008
2
A Dictionary of Science
Optical crown glass may contain potassium or barium in place of the sodium of
ordinary crown glass and has a refractive index in the range 1.51 to 1.54. Flint
glass contains lead oxide and has a refractive index between 1.58 and 1.72.
Higher ...
John Daintith, Elizabeth A. Martin, 2010
3
A Dictionary of Arts, Manufactures, and Mines ...
The. latter contains a considerable proportion of lead, in order to nive it an
increased dispersive power upon the rays of light, iu proportion to its mean
refractive power. Optical crown glass should be perfectly limpid, and have so little
colour, ...
4
A Dictinary of Arts, Manufactures and Mines...
The latter contains a considerable proportion of lead, in order to give it an
increased dispersive power upon the rays of light, in proportion to its mean
refractive power. Optical crown glass should be perfectly limpid, and have so little
colour, that ...
5
Infrared Detectors, Second Edition
Four materials are most often used for mirror fabrication: optical crown glass, low-
expansion borosilicate glass (LEBG), synthetic fused silica, and Zerodur . Less
popular in use are metallic substrates (beryllium, copper) and silicon carbide .
6
Building Electro-
Optical Systems: Making It all Work
For workin the visible,inabenign environment, choose windows made of an
optical crown glass such as BK7orits relatives. In acorrosive environment, quartz,
fused silica,orsapphire are better choices. Filters sold for cameras, for example,
UV ...
7
Dictionary Of Chemistry
optical glass 221 orbital synthesized by living organisms. optical glass It is the
glass used in the manufacture of lenses, prisms, and other optical parts. It must
be homogeneous and free from bubbles and strain. Optical crown glass may
contain ...
If the highest Abbe value is desired, the only choices for common lens optical
material are optical crown glass and CR-39. Plastic (CR-39) has a Refractive
index (nd) of 1498 (standard), an Abbe value of (Vd): 59.3, a Density of 1.31 g/
cm3 and ...
9
Optical Principles and Technology for Engineers
He shared it with Chance Brothers in England who established a plant to
produce optical crown and flint glasses for telescope and camera lenses. In 1886
, Ernst Abbe and Otto Schott joined Karl Zeiss in Jena to develop optical glass.
10
Neutron and X-ray Microscopy [electronic Resource]
This design provides both lateral and longitudinal chromatic correction. Figure
12b shows the design of an optical crown and flint achromat; one lens is positive
and f(1)/f(>t0) Neutron achromat Optical achromat FZP CRL Crown |:|int Q|ass 31.
Jay Theodore Cremer (Jr.), 2012
