This cured matter has >=40 Abbe number and low dispersion and has >=1.53 refractive index. The excellent plastic for lenses is thus obtd.AOKI OSAMUSHINTANI NOBUHIROKOBAYASHI MAKOTOKAWAKI TAKAO
Abbe_number
Relation to the Chromatic Dispersion of Lenses With the Abbe number, one can easily estimate the change infocal lengthof a simple opticallensmade from a material: The formula is not exact because it is based on a Taylor expansion, but it is normally good enough for practical purposes. It sh...
Define Abbe number. Abbe number synonyms, Abbe number pronunciation, Abbe number translation, English dictionary definition of Abbe number. n physics inverse of the dispersive power of a medium Collins English Dictionary – Complete and Unabridged, 12th
Heat-resistant lens materials and manufacture of lenses using the same, with high refractive index and Abbe number and adhesion to mold during cast polymerization.Amagai, ShoichiShimuta, MasanoriWatari, Isao
Two lenses were placed in a 4f configuration to image the DMD on the back focal plane of a 20× (NA = 0.4) or 10× (NA = 0.25) objective that coupled the light into the MM fibre. A pinhole in the Fourier plane blocked all but the 1st diffraction order, encoding the ...
Giving this context you can now understand why Abbe / Schott / Zeiss where the only manufacturer ofbigsemi-apo lenses (the A objective) for more than 30 years until the famousTelescope Flint recipeewas won after WWI and listed in Chance optical glass (see previous post 4277 glass numbe...
To answer that I would need to know what each of those companies instructed the polishers, or use a microscope on the lenses to examine the scratch and digs. Having neither I will not offer a conjecture as I would only have a 50-50 chance of being correct, just like everyone else, wh...
Preferably again, a monomer with a high Abbe number is chosen, the refractive index of which is at least 1.56. Polythiol monomers which are suitable for the lenses according to the present invention are well known in the art and can be represented by the formula R1(SH)n1in which n1is an...
This cured matter has >=40 Abbe number and low dispersion and has >=1.53 refractive index. The excellent plastic for lenses is thus obtd.青木 脩新谷 宣広小林 眞川木 隆雄