滤光片

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Andover UBVRI 天文滤光片/Nebula 天文滤光片


Johnson/Bessel Type 天文滤光片

 

Johnson/Bessel Type 天文滤光片

Filter Specifications
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
U
B
V
R
I
25mm dia.
50mm dia.
50 x 50mm sq.
31mm dia. mounted
50mm dia. mounted

 

Kron/Cousins Type 天文滤光片

Kron/Cousins Type 天文滤光片

Filter Specifications
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
 
U
B
V
R
I
25mm dia.
50mm dia.
50 x 50mm sq.
31mm dia. mounted
50mm dia. mounted


Nebula 天文滤光片

 
31mm dia.
50mm dia.
3-channel nebula filter:
O-III nebula filter:

 


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