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大家好，有谁能帮我翻译下面这段话，是关于光学玻璃材料参数的内容/ c& C; h( l% S7 \) s# G/ z
Code 2540 was a soda lime silicate glass based infrared transmitting,; j; f8 u( ^6 n, F7 r. h
visible absorbing optical filter. Transmission for a 2.3mm glass was 57%
5 Y4 q& o l: C) f2 nat 1000nm, and only ~ 20% at 900nm. 7 k6 Y5 T( I d3 P3 K4 K
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Code 2404 was a Soda zinc borosilicate glass sharp cut infrared8 ~ r2 k0 n; H
transmitting filter, with the visible 50% transmission edge cut at ~
5 z& R4 }3 M M3 G630nm (3 mm thick glass). There is essentially no transmission below ~! W, ~; @% S. M7 \5 ~
585nm for the 3mm thickness.- h# u% D7 b; Z8 r4 u6 O9 `. E
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We do have much of the details on these glasses in the REMIS database of o: _5 L1 F7 J. T0 F6 ?9 E4 S
properties, as well as composition information from the released T% w" X& Y3 i1 v
material folders in the TIC vault.
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- z0 D) \2 r5 H" `7 ]( hThese were just 2 of many filter glasses that Corning sold until the- X, J3 @9 p3 L. W" n- I/ w% y4 ?9 P
1990's. The business was sold to Kopp Glass of Pittsburgh, PA. I have a% }- v. i5 v, n( c
Kopp Filter Glass catalog that shows these filters have been produced by) X% ? e. c) M# {
Kopp. They have their own catalog numbers for them (CS-Number 7-56 =* j% W* {/ Y& Y8 B- d
Code 2540 & CS-Number 2-59 = Code 2404) , but they also maintain the1 @# i4 _0 Y4 \# i5 P4 ]
Corning glass code numbers as well for each specific filter glass. |
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发表于 2008-11-22 08:41:13