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大家好,,有誰(shuí)能幫我翻譯下面這段話,,是關(guān)于光學(xué)玻璃材料參數(shù)的內(nèi)容4 Z' x8 `% U J' y9 _: O
Code 2540 was a soda lime silicate glass based infrared transmitting,
- d @7 L" q" m3 s2 A6 z% G7 z* ovisible absorbing optical filter. Transmission for a 2.3mm glass was 57%
7 N: Y8 J7 ]& o3 |; Jat 1000nm, and only ~ 20% at 900nm. ; }# S. u+ ^+ f' |( q
/ }/ ]7 B, p7 ?8 c% OCode 2404 was a Soda zinc borosilicate glass sharp cut infrared' C4 l9 Z( S# [; W4 e* x
transmitting filter, with the visible 50% transmission edge cut at ~4 L6 A0 [2 j5 g0 @# H! ~
630nm (3 mm thick glass). There is essentially no transmission below ~7 |$ l; u, o) m. n0 o
585nm for the 3mm thickness.
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We do have much of the details on these glasses in the REMIS database of
% t1 \: J7 l4 H ~' W- gproperties, as well as composition information from the released
3 M8 {2 E0 q* K A' G$ lmaterial folders in the TIC vault.( b+ x7 D" g- V3 o
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These were just 2 of many filter glasses that Corning sold until the! @1 i c! L8 u
1990's. The business was sold to Kopp Glass of Pittsburgh, PA. I have a \, R& A' \' U- p2 y2 X K
Kopp Filter Glass catalog that shows these filters have been produced by+ G) R8 D3 w8 s2 p5 |" Z
Kopp. They have their own catalog numbers for them (CS-Number 7-56 =* r6 i' ^. X% `5 J( h/ P2 c
Code 2540 & CS-Number 2-59 = Code 2404) , but they also maintain the% _( m. `! V. M* T& E# r3 i
Corning glass code numbers as well for each specific filter glass. |
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