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Ultraviolet Transmitting, Visible Absorbing Filters ( U ) |
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Ultraviolet Transmitting, Visible Absorbing Filters transmit the ultraviolet region but absorb the visible region. These filters are chiefly used for single extraction of ultraviolet rays. They are often utilized for selectively transmitting the 253.7 nm and 365 nm wavelengths, which are the representative line spectra of mercury lamps. |
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Transmittance |
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Use our transmittance simulation software for further information on transmittance. |
![[Transmission simulation software]](eo_img/eo_btn_download.gif) |
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Ultraviolet Transmitting, Visible Absorbing Filter : Data |
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Item / Name |
Standard value |
Color specification (Standard illuminants A) |
Thick-ness |
Reflective index |
Chemical properties |
Thermal properties |
Mechanical properties |
Specific gravity |
Tmax (%) |
T254 (%) |
T405 (%) |
x |
y |
mm |
600nm |
DW |
DA |
Tg |
TS |
α -30/ 70 |
α 100/ 300 |
HK |
FA |
d |
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U325B |
85±5 |
— |
<10 |
— |
— |
4.50 |
1.551 |
4 |
3 |
450 |
500 |
93 |
65 |
380 |
220 |
2.89 |
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U325C |
85±5 |
>55 |
<10 |
— |
— |
4.50 |
1.551 |
4 |
3 |
450 |
500 |
93 |
65 |
380 |
220 |
2.89 |
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U330 |
85±5 |
>40 |
<15 |
— |
— |
2.50 |
1.552 |
4 |
5 |
470 |
505 |
82 |
93 |
420 |
230 |
2.78 |
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U340 |
75±5 |
<1.0 |
<0.1 |
— |
— |
2.50 |
1.571 |
4 |
4 |
530 |
565 |
85 |
96 |
430 |
250 |
2.92 |
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U360 |
70±5 |
<0.01 |
<1.0 |
— |
— |
2.50 |
1.537 |
3 |
2 |
520 |
560 |
100 |
111 |
560 |
140 |
2.74 |
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Item / Name |
Standard value |
Color specification (Standard illuminants A) |
Thick-ness |
Reflective index |
Chemical properties |
Thermal properties |
Mechanical properties |
Specific gravity |
T365 (%) |
T405 (%) |
T694 (%) |
T750 (%) |
x |
y |
mm |
600nm |
DW |
DA |
Tg |
TS |
α -30/ 70 |
α 100/ 300 |
HK |
FA |
d |
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UL365S |
≥73 |
≤7 |
≤3 |
≤45 |
— |
— |
3.25 |
1.532 |
1 |
1 |
527 |
687 |
— |
88 |
490 |
100 |
2.61 |
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* The listed data are standard values. As we are always improving our products, the data listed are subject to change without notice. |
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Explanation about the specification values in the tables is displayed. |
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Explanation about the items other than specification values in the tables is displayed. |
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