這(zhe)些(xie)尖銳邊緣濾光片通(tong)常(chang)被(bei)稱為(wei)長波(bo)通(tong)（LWP）和(he)短(duan)波(bo)通(tong)（SWP）濾光片，其(qi)特征(zheng)在(zai)於它們在(zai)反射(she)和透(tou)射(she)區(qu)域之間(jian)的高(gao)轉換(huan)率(lv)。如(ru)此高(gao)的轉換(huan)率(lv)使其(qi)成為(wei)熒(ying)光應(ying)用(yong)中(zhong)的發射(she)濾光片以(yi)及(ji)光度法中的排序(xu)濾光片的xxx選擇。它們還(hai)可(ke)以(yi)用(yong)作(zuo)雜(za)散(san)光或微(wei)調(tiao)濾光片，以(yi)消(xiao)除(chu)任何(he)不(bu)需(xu)要(yao)的近帶輻(fu)射(she)。所有(you)Andover LWP / SWP濾光片均(jun)由(you)堅硬，耐(nai)用(yong)的D壹表(biao)面介(jie)電塗層(ceng)構(gou)成，可(ke)承受(shou)與(yu)任(ren)何(he)高(gao)質(zhi)量(liang)光學(xue)組(zu)件(jian)相(xiang)關(guan)的常(chang)規(gui)清潔和處理(li)。它們的膜(mo)結構(gou)本(ben)質(zhi)上是經(jing)過(guo)修(xiu)改(gai)的四(si)分(fen)之壹波(bo)長疊(die)堆(dui)，利(li)用(yong)幹涉(she)效應(ying)而(er)不(bu)是(shi)吸(xi)收來(lai)隔(ge)離其(qi)光譜帶。與(yu)濾鏡(jing)不(bu)同(tong) 由(you)於對波(bo)長隨(sui)角(jiao)度的變化不(bu)敏感(gan)，這(zhe)些(xie)濾光器的波(bo)長隨(sui)入(ru)射(she)角(jiao)的增(zeng)加(jia)而(er)變短。此(ci)功能在(zai)可(ke)能需(xu)要(yao)微(wei)調50％截止(zhi)波(bo)長或截(jie)止(zhi)波(bo)長的應用(yong)中(zhong)很有(you)用(yong)。所(suo)有(you)標準(zhun)邊(bian)緣(yuan)濾光片都(dou)可(ke)以(yi)從(cong)400nm到1000nm以(yi)50nm的增(zeng)量(liang)遞(di)增(zeng)。
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 |
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