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Andover UBVRI 天文濾光片/Nebula 天文濾光片
Johnson/Bessel Type 天文濾光片
Filter Specifications |
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Filter Type |
Nominal CWL |
Nominal FWHM |
Nominal Transmission |
U |
365nm |
60nm |
> 50% |
B |
440nm |
100nm |
> 55% |
V |
550nm |
90nm |
> 70% |
R |
630nm |
120nm |
> 70% |
I |
900nm |
300nm |
> 70% |
Part Numbers |
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U |
B |
V |
R |
I |
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25mm dia. |
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50mm dia. |
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50 x 50mm sq. |
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31mm dia. mounted |
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50mm dia. mounted |
Kron/Cousins Type 天文濾光片
Filter Specifications |
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Filter Type |
Nominal CWL |
Nominal FWHM |
Nominal Transmission |
U |
365nm |
60nm |
> 50% |
B |
440nm |
100nm |
> 55% |
V |
550nm |
90nm |
> 70% |
R |
760nm |
250nm |
> 70% |
I |
800nm |
150nm |
> 70% |
Part Numbers |
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U |
B |
V |
R |
I |
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25mm dia. |
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50mm dia. |
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50 x 50mm sq. |
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31mm dia. mounted |
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50mm dia. mounted |
Nebula 天文濾光片
31mm dia. |
50mm dia. |
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3-channel nebula filter: |
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O-III nebula filter: |
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