標(biāo)準(zhǔn)紅外長(zhǎng)通濾波器,應(yīng)用于順序分類的長(zhǎng)波通濾光片
LWP的英文全稱Long Wave Pass,意為長(zhǎng)波通或高波通。美國(guó)Andover公司推出的紅外長(zhǎng)通濾光片,又被稱為長(zhǎng)波通濾波片或紅外高波通濾波器。長(zhǎng)波通濾光片在特定波長(zhǎng)下提供銳截止。Andover長(zhǎng)通濾波片通常用于順序分類,它們隔離了廣泛的光譜區(qū)域,同時(shí)提供所需波段的高透射率,以及深入抑制不需要的波段。Andover長(zhǎng)波通濾光片由光學(xué)質(zhì)量的紅外透射基板上的堅(jiān)硬耐用的表面電介質(zhì)鍍膜構(gòu)成,這些長(zhǎng)波通濾波片能承受與任何高質(zhì)量光學(xué)部件相關(guān)的正常清潔和處理。
高波通濾光片提供三種標(biāo)準(zhǔn)尺寸的濾波片:12.5mm、25mm和50mm直徑,具有統(tǒng)一的中心厚度1mm,此外Andover也提供定制尺寸和形狀,以及定制的光學(xué)特性。中紅外高波通濾波片的工作溫度涵蓋-62°C至+71°C,因此具有廣泛的應(yīng)用。硅或鍺是紅外長(zhǎng)波通濾光片的主要基底材料,其平行度小于10弧分,平均反射率小于0.1%,平均透過率>85% (from 1.05 x cut-on to 2.0 x cut-on)。中紅外長(zhǎng)通濾波片的平面度小于5 waves (at cut-on W/L),斜率小于7% (12% for 1.05µm filter)。
Andover中紅外高波通濾光片的標(biāo)準(zhǔn)品:
型號(hào) | 5%波長(zhǎng)(nm) | 類型 | 尺寸(mm) | 厚度(mm) | Scratch-Dig | 通光孔徑 | 平面度 |
1.05ILP-12.5 | 1050.0±40 | LWP | 12.5+0/-0.2 | 1.0±0.2 | 80/50 | 11.0mm-min | 5 or better at of Interest |
1.05ILP-25 | 1050.0±40 | LWP | 25.0 +0/-0.2 | 1.0±0.2 | 80/50 | 22.0mm-min | 5 or better at of Interest |
1.05ILP-50 | 1050.0±40 | LWP | 50.0 +0/-0.2 | 1.0±0.2 | 80/50 | 45mm-min | 5 or better at of Interest |
1.65ILP-12.5 | 1650.0±70 | LWP | 12.5 +0/-0.2 | 1.0±0.2 | 80/50 | 11.0mm-min | 5 or better at of Interest |
1.65ILP-25 | 1650.0±70 | LWP | 25.0 +0/-0.2 | 1.0±-0.2 | 80/50 | 22.0mm-min | 5 or better at of Interest |
1.65ILP-50 | 1650.0±70 | LWP | 50.0 +0/-0.2 | 1.0±0.2 | 80/50 | 45mm-min | 5 or better at of Interest |
2.40ILP-12.5 | 2400.0±90 | LWP | 12.5 +0/-0.2 | 1.0±0.2 | 80/50 | 11.0mm-min | 5 or better at of Interest |
2.40ILP-25 | 2400.0±90 | LWP | 25.0 +0/-0.2 | 1.0±0.2 | 80/50 | 22.0mm-min | 5 or better at of Interest |
2.40ILP-50 | 2400.0±90 | LWP | 50.0 +0/-0.2 | 1.0±0.2 | 80/50 | 45mm-min | 5 or better at of Interest |
3.60ILP-12.5 | 3600.0±140 | LWP | 12.5 +0/-0.2 | 1.0±0.2 | 80/50 | 11.0mm-min | 5 or better at of Interest |
3.60ILP-25 | 3600.0±140 | LWP | 25.0 +0/-0.2 | 1.0±0.2 | 80/50 | 22.0mm-min | 5 or better at of Interest |
3.60ILP-50 | 3600.0±140 | LWP | 50.0 +0/-0.2 | 1.0±0.2 | 80/50 | 45mm-min | 5 or better at of Interest |
4.50ILP-12.5 | 4500.0±180 | LWP | 12.5 +0/-0.2 | 1.0±0.2 | 80/50 | 11.0mm-min | 5 or better at of Interest |
4.50ILP-25 | 4500.0±180 | LWP | 25.0 +0/-0.2 | 1.0±0.2 | 80/50 | 22.0mm-min | 5 or better at of Interest |
4.50ILP-50 | 4500.0±180 | LWP | 50.0 +0/-0.2 | 1.0±0.2 | 80/50 | 45mm-min | 5 or better at of Interest |
6.00ILP-12.5 | 6000.0±240 | LWP | 12.5 +0/-0.2 | 1.0±0.2 | 80/50 | 11.0mm-min | 5 or better at of Interest |
6.00ILP-25 | 6000.0±240 | LWP | 25.0 +0/-0.2 | 1.0±0.2 | 80/50 | 22.0mm-min | 5 or better at of Interest |
6.00ILP-50 | 6000.0±240 | LWP | 50.0 +0/-0.2 | 1.0±0.2 | 80/50 | 45mm-min | 5 or better at of Interest |
7.30ILP-12.5 | 7300.0±290 | LWP | 12.5 +0/-0.2 | 1.0±0.2 | 80/50 | 11.0mm-min | 5 or better at of Interest |
7.30ILP-25 | 7300.0±290 | LWP | 25.0 +0/-0.2 | 1.0±0.2 | 80/50 | 22.0mm-min | 5 or better at of Interest |
7.30ILP-50 | 7300.0±290 | LWP | 50.0 +0/-0.2 | 1.0±0.2 | 80/50 | 45mm-min | 5 or better at of Interest |
長(zhǎng)波通濾波片的主要特點(diǎn):
- 用于分離寬光譜區(qū)域
- 由堅(jiān)硬、耐用的表面涂層構(gòu)成
- 有標(biāo)準(zhǔn)和定制波長(zhǎng)可供選擇
紅外長(zhǎng)通濾光片的主要應(yīng)用:
- 順序分類
- 傅里葉變換紅外光譜
- 熱成像