Filtres coupe bande
AndoverSouvent appelés filtres passe-haut (LWP) et passe-bas (SWP), les filtres coupe bande assurent une transition bien définie entre les régions de réflexion et de transmission. Essentiellement une lame quart d'onde modifiée, les filtres utilisent les effets d'interférence plutôt que l'absorption pour isoler leurs bandes spectrales. Étant donné que les filtres de coupure sont plus courts lorsque l'angle d'incidence augmente, ils constituent un bon moyen de régler avec précision la longueur d'onde de coupure et de transmission. Avec leurs traitements diélectriques résistants de première face, les filtres de bord d'Andover sont conçus pour résister au nettoyage et à la manipulation normaux requis par tout composant optique de haute qualité.
- Utile pour rediriger une bande de lumière particulière
- Fournissent une transition plus marquée que les filtres en verre coloré
- Offre une gamme spectrale 400-1000 nm
Caractéristiques techniques
General Specifications | |
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Thickness | 4.0 mm maximum |
Size Tolerance | +0.0/-0.5 mm |
Min. Clear Aperture | 85% of outside dimension |
Substrate Material | Glass (Note: BK-7 or Borofloat available as an Option for higher Tx) |
Flatness | 3-5 waves per 25 mm |
Surface Quality | 80/50 per MIL-C-48497A |
Humidity and Abrasion | Per MIL-C-675A |
Operating Temperature | -50 °C to +100 °C |
Cut-on/cut-off Slopes | 6% Maximum (10% for 300 nm filter) |
Cut-on/cut-off Tolerance | ±10 nm from 400-1000 nm ± 5 nm from 300-375 nm |
Mechanical | Unmounted |
Optional: Mounted in threaded ring - contact our expert on the right for thread sizes |
Transmission | |
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Long Wave Pass | 85% average from the 50% cut-on point to 2000 nm |
Short Wave Pass | 85% average from the 50% cut-off point to 0.6 x the 50% cut-off point |
Note: With the exception of the 400 nm filter, all SWP filters will drop off in transmission at wavelengths under 425 nm. |
Rejection | |
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Long Wave Pass | 99% or greater from 0.9 x the 50% point to the ultraviolet |
Short Wave Pass | 99% or greater from 1.07 x the 50% point to 1.25 x the 50% point |
Effective Index of Refraction (n*) | 1.7 (approximately) |
Visible | ||||
---|---|---|---|---|
50% Point | Size, Shape & Part Number | |||
12.5 mm Ø | 25 mm Ø | 50 mm Ø | 50 mm SQ | |
300 nm | 300FH90-12.5 | 300FH90-25 | 300FH90-50 | 300FH90-50S |
325 nm | 325FH90-12.5 | 325FH90-25 | 325FH90-50 | 325FH90-50S |
350 nm | 350FH90-12.5 | 350FH90-25 | 350FH90-50 | 350FH90-50S |
375 nm | 375FH90-12.5 | 375FH90-25 | 375FH90-50 | 375FH90-50S |
400 nm | 400FH90-12.5 | 400FH90-25 | 400FH90-50 | 400FH90-50S |
450 nm | 450FH90-12.5 | 450FH90-25 | 450FH90-50 | 450FH90-50S |
500 nm | 500FH90-12.5 | 500FH90-25 | 500FH90-50 | 500FH90-50S |
550 nm | 550FH90-12.5 | 550FH90-25 | 550FH90-50 | 550FH90-50S |
600 nm | 600FH90-12.5 | 600FH90-25 | 600FH90-50 | 600FH90-50S |
650 nm | 650FH90-12.5 | 650FH90-25 | 650FH90-50 | 650FH90-50S |
700 nm | 700FH90-12.5 | 700FH90-25 | 700FH90-50 | 700FH90-50S |
Near Infrared | ||||
---|---|---|---|---|
50% Point | Size, Shape & Part Number | |||
12.5 mm Ø | 25 mm Ø | 50 mm Ø | 50 mm SQ | |
750 nm | 750FH90-12.5 | 750FH90-25 | 750FH90-50 | 750FH90-50S |
800 nm | 800FH90-12.5 | 800FH90-25 | 800FH90-50 | 800FH90-50S |
850 nm | 850FH90-12.5 | 850FH90-25 | 850FH90-50 | 850FH90-50S |
900 nm | 900FH90-12.5 | 900FH90-25 | 900FH90-50 | 900FH90-50S |
950 nm | 950FH90-12.5 | 950FH90-25 | 950FH90-50 | 950FH90-50S |
1000 nm | 100FH90-12.5 | 100FH90-25 | 100FH90-50 | 100FH90-50S |
Visible | ||||
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50% Point | Size, Shape & Part Number | |||
12.5 mm Ø | 25 mm Ø | 50 mm Ø | 50 mm SQ | |
400 nm | 400FL07-12.5 | 400FL07-25 | 400FL07-50 | 400FL07-50S |
450 nm | 450FL07-12.5 | 450FL07-25 | 450FL07-50 | 450FL07-50S |
500 nm | 500FL07-12.5 | 500FL07-25 | 500FL07-50 | 500FL07-50S |
550 nm | 550FL07-12.5 | 550FL07-25 | 550FL07-50 | 550FL07-50S |
600 nm | 600FL07-12.5 | 600FL07-25 | 600FL07-50 | 600FL07-50S |
650 nm | 650FL07-12.5 | 650FL07-25 | 650FL07-50 | 650FL07-50S |
700 nm | 700FL07-12.5 | 700FL07-25 | 700FL07-50 | 700FL07-50S |
Near Infrared | ||||
---|---|---|---|---|
50% Point | Size, Shape & Part Number | |||
12.5 mm Ø | 25 mm Ø | 50 mm Ø | 50 mm SQ | |
750 nm | 750FL07-12.5 | 750FL07-25 | 750FL07-50 | 750FL07-50S |
800 nm | 800FL07-12.5 | 800FL07-25 | 800FL07-50 | 800FL07-50S |
850 nm | 850FL07-12.5 | 850FL07-25 | 850FL07-50 | 850FL07-50S |
900 nm | 900FL07-12.5 | 900FL07-25 | 900FL07-50 | 900FL07-50S |
950 nm | 950FL07-12.5 | 950FL07-25 | 950FL07-50 | 950FL07-50S |
1000 nm | 100FL07-12.5 | 100FL07-25 | 100FL07-50 | 100FL07-50S |
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Quantum Design S.A.R.L.
1 avenue de l’Atlantique
Bâtiment Mac Kinley
91940 Les Ulis
France
Tél. : | 01 69 19 49 49 |
Email : | franceqd-europe.com |