
這些尖銳邊緣濾光片通常被稱為長波通(LWP)和短波通(SWP)濾光片,其特征在于它們在反射和透射區(qū)域之間的高轉換率。如此高的轉換率使其成為熒光應用中的發(fā)射濾光片以及光度法中的排序濾光片的xxx選擇。它們還可以用作雜散光或微調(diào)濾光片,以消除任何不需要的近帶輻射。所有Andover LWP / SWP濾光片均由堅硬,耐用的D一表面介電涂層構成,可承受與任何高質(zhì)量光學組件相關的常規(guī)清潔和處理。它們的膜結構本質(zhì)上是經(jīng)過修改的四分之一波長疊堆,利用干涉效應而不是吸收來隔離其光譜帶。與濾鏡不同 由于對波長隨角度的變化不敏感,這些濾光器的波長隨入射角的增加而變短。此功能在可能需要微調(diào)50%截止波長或截止波長的應用中很有用。所有標準邊緣濾光片都可以從400nm到1000nm以50nm的增量遞增。
General Specifications
| Thickness: | 4.0mm maximum | 
| Size Tolerance: | +0.0mm/-0.5mm | 
| 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 TWF | 
| Surface Quality: | 80-50 per MIL-C-48497A | 
| Humidity and Abrasion: | Per MIL-C-675A | 
| Operating Temperature: | -50°C to +200°C | 
| Cut-on Slope: | 6% maximum (11% for 300nm filter) | 
| Cut-on Tolerance: | ±10nm from 400nm-1100nm ±5nm from 300nm - 375nm  | 
| Mechanical: | Unmounted | 
Transmission
| Long Wave Pass: | 85% average from the 50% cut-on point to 2000nm | 
| Short Wave Pass: | 400-450nm: 85% avererage from the 50% cut-on point to 0.75 x the 50% cut-off point 500-1000nm: 85% avererage from the 50% cut-on point to 0.75 x the 50% cut-off pointNote: with the exception of the 400nm filter, all SWP filters will drop off in transmission at wavelengths under 400nm.)  | 
Rejection
| Long Wave Pass: | 99% or greater from 0.9 x the 50% point to the UV | 
| 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) | 
| DESCRIPTION | PART NO. | 
| 100.0nm Cut-off, 12.5 mm dia., unmounted, Short Wave Pass Edge Filter | 100FL07-12.5 | 
| 400.0nm Cut-off, 12.5 mm dia., unmounted, Short Wave Pass Edge Filter | 400FL07-12.5 | 
| 400.0nm Cut-off, 25.0 mm dia., unmounted, Short Wave Pass Edge Filter | 400FL07-25 | 
| 400.0nm Cut-off, 50.0 mm dia., unmounted, Short Wave Pass Edge Filter | 400FL07-50 | 
| 400.0nm Cut-off, 50.0 x 50.0 mm sq., unmounted, Short Wave Pass Edge Filter | 400FL07-50S | 
| 450.0nm Cut-off, 12.5 mm dia., unmounted, Short Wave Pass Edge Filter | 450FL07-12.5 | 
| 450.0nm Cut-off, 25.0 mm dia., unmounted, Short Wave Pass Edge Filter | 450FL07-25 | 
| 450.0nm Cut-off, 50.0 mm dia., unmounted, Short Wave Pass Edge Filter | 450FL07-50 | 
| 450.0nm Cut-off, 50.0 x 50.0 mm sq., unmounted, Short Wave Pass Edge Filter | 450FL07-50S | 
| 500.0nm Cut-off, 12.5 mm dia., unmounted, Short Wave Pass Edge Filter | 500FL07-12.5 | 
| 500.0nm Cut-off, 25.0 mm dia., unmounted, Short Wave Pass Edge Filter | 500FL07-25 | 
| 500.0nm Cut-off, 50.0 mm dia., unmounted, Short Wave Pass Edge Filter | 500FL07-50 | 
| 500.0nm Cut-off, 50.0 x 50.0 mm sq., unmounted, Short Wave Pass Edge Filter | 500FL07-50S | 
| 550.0nm Cut-off, 12.5 mm dia., unmounted, Short Wave Pass Edge Filter | 550FL07-12.5 | 
| 550nm Cut-off, 25.0 mm dia., unmounted, Short Wave Pass Edge Filter | 550FL07-25 | 
| 550.0nm Cut-off, 50.0 mm dia., unmounted, Short Wave Pass Edge Filter | 550FL07-50 | 
| 550.0nm Cut-off, 50.0 x 50.0 mm sq., unmounted, Short Wave Pass Edge Filter | 550FL07-50S | 
| 600.0nm Cut-off, 12.5 mm dia., unmounted, Short Wave Pass Edge Filter | 600FL07-12.5 | 
| 600.0nm Cut-off, 25.0 mm dia., unmounted, Short Wave Pass Edge Filter | 600FL07-25 | 
| 600.0nm Cut-off, 50.0 mm dia., unmounted, Short Wave Pass Edge Filter | 600FL07-50 | 
| 600.0nm Cut-off, 50.0 x 50.0 mm sq., unmounted, Short Wave Pass Edge Filter | 600FL07-50S | 
| 650.0nm Cut-off, 12.5 mm dia., unmounted, Short Wave Pass Edge Filter | 650FL07-12.5 | 
| 650.0nm Cut-off, 25.0 mm dia., unmounted, Short Wave Pass Edge Filter | 650FL07-25 | 
| 650.0nm Cut-off, 50.0 mm dia., unmounted, Short Wave Pass Edge Filter | 650FL07-50 | 
| 650.0nm Cut-off, 50.0 x 50.0 mm sq., unmounted, Short Wave Pass Edge Filter | 650FL07-50S | 
| 700.0nm Cut-off, 12.5 mm dia., unmounted, Short Wave Pass Edge Filter | 700FL07-12.5 | 
| 700.0nm Cut-off, 25.0 mm dia., unmounted, Short Wave Pass Edge Filter | 700FL07-25 | 
| 700.0nm Cut-off, 50.0 mm dia., unmounted, Short Wave Pass Edge Filter | 700FL07-50 | 
| 700.0nm Cut-off, 50.0 x 50.0 mm sq., unmounted, Short Wave Pass Edge Filter | 700FL07-50S | 
| 750.0nm Cut-off, 12.5 mm dia., unmounted, Short Wave Pass Edge Filter | 750FL07-12.5 | 
| 750.0nm Cut-off, 25.0 mm dia., unmounted, Short Wave Pass Edge Filter | 750FL07-25 | 
| 750.0nm Cut-off, 50.0 mm dia., unmounted, Short Wave Pass Edge Filter | 750FL07-50 | 
| 750.0nm Cut-off, 50.0 x 50.0 mm sq., unmounted, Short Wave Pass Edge Filter | 750FL07-50S | 
| 800.0nm Cut-off, 12.5 mm dia., unmounted, Short Wave Pass Edge Filter | 800FL07-12.5 | 
| 800.0nm Cut-off, 25.0 mm dia., unmounted, Short Wave Pass Edge Filter | 800FL07-25 | 
| 800.0nm Cut-off, 50.0 mm dia., unmounted, Short Wave Pass Edge Filter | 800FL07-50 | 
| 800.0nm Cut-off, 50.0 x 50.0 mm sq., unmounted, Short Wave Pass Edge Filter | 800FL07-50S | 
| 850.0nm Cut-off, 12.5 mm dia., unmounted, Short Wave Pass Edge Filter | 850FL07-12.5 | 
| 850.0nm Cut-off, 25.0 mm dia., unmounted, Short Wave Pass Edge Filter | 850FL07-25 | 
| 850.0nm Cut-off, 50.0 mm dia., unmounted, Short Wave Pass Edge Filter | 850FL07-50 | 
| 850.0nm Cut-off, 50.0 x 50.0 mm sq., unmounted, Short Wave Pass Edge Filter | 850FL07-50S | 
| 900.0nm Cut-off, 12.5 mm dia., unmounted, Short Wave Pass Edge Filter | 900FL07-12.5 | 
| 900.0nm Cut-off, 25.0 mm dia., unmounted, Short Wave Pass Edge Filter | 900FL07-25 | 
| 900.0nm Cut-off, 50.0 mm dia., unmounted, Short Wave Pass Edge Filter | 900FL07-50 | 
| 900.0nm Cut-off, 50.0 x 50.0 mm sq., unmounted, Short Wave Pass Edge Filter | 900FL07-50S | 
| 950.0nm Cut-off, 12.5 mm dia., unmounted, Short Wave Pass Edge Filter | 950FL07-12.5 | 
| 950.0nm Cut-off, 25.0 mm dia., unmounted, Short Wave Pass Edge Filter | 950FL07-25 | 
| 950.0nm Cut-off, 50.0 mm dia., unmounted, Short Wave Pass Edge Filter | 950FL07-50 | 
| 950.0nm Cut-off, 50.0 x 50.0 mm sq., unmounted, Short Wave Pass Edge Filter | 950FL07-50S | 
| 1000.0nm Cut-off, 25.0 mm dia., unmounted, Short Wave Pass Edge Filter | 100FL07-25 | 
| 1000.0nm Cut-off, 50.0 mm dia., unmounted, Short Wave Pass Edge Filter | 100FL07-50 | 
| 1000.0nm Cut-off, 50.0 x 50.0 mm sq., unmounted, Short Wave Pass Edge Filter | 100FL07-50S |