Filtros de Astronomía/UVBRI

de Andover

Ahora Andover Corporation ofrece dos conjuntos de filtros de astronomía/UBVRI —los tipos Johnson/Bessel y Kron/Cousins— como productos estándar. Estos filtros de banda ancha aíslan y miden grandes bandas específicas de luz emitida por objetos astronómicos. Ambos tipos tienen los mismos filtros de ultravioleta, azul y visible pero distintos filtros para rojo e infrarrojo. El tipo Johnson/Bessel es más adecuado para su uso con un tubo fotomultiplicador, mientras el tipo Kron/Cousins es más apto para su uso con un CCD de Silicio.

Features
Options for professionals and amateurs alike
Ideal for photometric calibration
General specifications
Size Tolerance+0/-0.25 mm
Glass Thickness5.0 mm +/-0.1 mm
BevelsBreak all sharp edges
Coating DurabilityPer MIL-C-48497A moderate abrasion
ConstructionSchott glass substrates (ground and polished) laminated with index-matching epoxy
Optical Specifications
Transmitted Wavefront1/4 wave or better per 25 mm
Parallelism30 arc seconds or better
Surface Quality60/40 or better per MIL-C-675
Optical QualityImage Quality
AR CoatingsExterior surfaces (appropriate to the filter passband)
Johnson/Bessel Filter SpecificationsUltravioletBlueVisibleRedInfrared
Nominal CW/L365nm440nm520nm630nm900 nm
Nominal FWHM60 nm100nm90 nm120nm300 nm
Nominal Transmission> 50%>55%> 70%>70%>70%
Kron/Cousins Filter SpecificationsUltravioletBlueVisibleRedInfrared
Nominal CW/L365 nm440nm520nm760nm800 nm
Nominal FWHM60 nm100nm90 nm250nm150 nm
Nominal Transmission> 50%>55%>70%>70%>70%

Johnson/Bessel UBVRI Filters

Size, Shape, Part Number & Type
Type25 mm Ø50 mm Ø50 mm SQ(Mounted)
31 mm Ø
(Mounted)
50 mm Ø
Ultraviolet
Blue
Visible
Red
Infrared
JOHN-U-25
JOHN-B-25
JOHN-V-25
JOHN-R-25
JOHN-I-25
JOHN-U-50
JOHN-B-50
JOHN-V-50
JOHN-R-50
JOHN-I-50
JOHN-U-50S
JOHN-B-50S
JOHN-V-50S
JOHN-R-50S
JOHN-I-50S
JOHN-U-31M
JOHN-B-31M
JOHN-V-31M
JOHN-R-31M
JOHN-I-31M
JOHN-U-50M
JOHN-B-50M
JOHN-V-50M
JOHN-R-50M
JOHN-I-50M
5 Piece SetsJOHN-FA-25JOHN-FA-50JOHN-FA-50SJOHN-FA-31MJOHN-FA-50M

Kron/Cousins UBVRI Filters

Size, Shape, Part Number & Type
Type25 mm Ø50 mm Ø50 mm SQ(Mounted)
31 mm Ø
(Mounted)
50 mm Ø
Ultraviolet
Blue
Visible
Red
Infrared
KRON-U-25
KRON-B-25
KRON-V-25
KRON-R-25
KRON-I-25
KRON-U-50
KRON-B-50
KRON-V-50
KRON-R-50
KRON-I-50
KRON-U-50S
KRON-B-50S
KRON-V-50S
KRON-R-50S
KRON-I-50S
KRON-U-31M
KRON-B-31M
KRON-V-31M
KRON-R-31M
KRON-I-31M
KRON-U-50M
KRON-B-50M
KRON-V-50M
KRON-R-50M
KRON-I-50M
5 Piece SetsKRON-FA-25KRON-FA-50KRON-FA-50SKRON-FA-31MKRON-FA-50M

Contacts

Request further information
Sales Manager
+34 937 349168
Fax: +34 937 349168

Our partner

Follow us: twitter linkedin facebook
European offices
© LOT Quantum Design 2016