滤光片

                                                  滤光片专家

                                                  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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