二向色濾光片（分色濾光片）用于需要隔離可見(jiàn)光譜的某些區(qū)域的各種應(yīng)用中。一些較常見(jiàn)的應(yīng)用是用于彩色放大器和復(fù)印機(jī)作為光平衡濾光器。它們?cè)谌魏慰赡苄枰獙⑷肷淠芰糠殖蓛蓚€(gè)或多個(gè)光束的應(yīng)用中也非常有用。以下光譜曲線以垂直入射方式顯示，但是對(duì)于許多應(yīng)用，例如組合顏色，可能希望以45°入射角以反射模式使用它們。
在這些過(guò)濾器中使用的所有涂層材料都產(chǎn)生堅(jiān)硬，耐用的介電薄膜，其沒(méi)有隨著使用年限和使用而降低的跡象。與使用時(shí)會(huì)褪色的有機(jī)染料或明膠類型不同，這些過(guò)濾器非常穩(wěn)定，不會(huì)隨著時(shí)間的推移而損失任何效率。這些過(guò)濾器也可以成套使用。過(guò)濾器也可以安裝在螺紋環(huán)中。
可根據(jù)要求提供定制尺寸，基材和光譜特性。
Dichroic Filters General Specifications
| Thickness: | 1.0mm ±0.25mm |
| Size Tolerance: | +0.0mm/-0.25mm |
| Min. Clear Aperture: | 95% of outside dimension |
| Substrate Material: | Soda lime glass |
| Flatness: | 3–5 waves per 25mm |
| Parallelism: | 3 arc minutes or better |
| Surface Quality: | 80/50 per MIL-C-48497A |
| Humidity and Abrasion: | Per MIL-C-48497A |
| Max. Operating Temp: | +200°C |
| Mechanical: | Unmounted |
| Blue Dichroic Reflective, 25.0 | |
| PART NO. | 475FD68-25 |
| Filter Type | Blue Dichroic Reflective |
| Transmission | >85% avg. from 525 to 800nm |
| Reflection | |
| Nominal 50% point(s) | - 475nm cut-on (nominal)- T(avg) < 10% from 380 to 450nm- T(avg) > 85% from 525 to 800nm |
| Size | 25.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 45.0° |
| Operating Temp. (°C.) | +200 max. |
| Blue Dichroic Reflective, 50.0 | |
| PART NO. | 475FD68-50 |
| Filter Type | Blue Dichroic Reflective |
| Transmission | >85% avg. from 525 to 800nm |
| Reflection | |
| Nominal 50% point(s) | - 475nm cut-on (nominal)- T(avg) < 10% from 380 to 450nm- T(avg) > 85% from 525 to 800nm |
| Size | 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 45.0° |
| Operating Temp. (°C.) | +200 max. |
| Blue Dichroic Reflective, 50.0 x 50.0 | |
| PART NO. | 475FD68-50S |
| Filter Type | Blue Dichroic Reflective |
| Transmission | >85% avg. from 525 to 800nm |
| Reflection | |
| Nominal 50% point(s) | - 475nm cut-on (nominal)- T(avg) < 10% from 380 to 450nm- T(avg) > 85% from 525 to 800nm |
| Size | 50.0 x 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 45.0° |
| Operating Temp. (°C.) | +200 max. |
| Blue Dichroic Additive, 25.0 | |
| PART NO. | 505FD64-25 |
| Filter Type | Blue Dichroic Additive |
| Transmission | >80% avg. from 390 to 480nm |
| Reflection | |
| Nominal 50% point(s) | 505nm cut-off (nominal)>80% (avg) trans. from 390nm to 480nm>99% (avg) Refl. from 540nm to 750nm |
| Size | 25.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Blue Dichroic Additive, 50.0 | |
| PART NO. | 505FD64-50 |
| Filter Type | Blue Dichroic Additive |
| Transmission | >80% avg. from 390 to 480nm |
| Reflection | |
| Nominal 50% point(s) | 505nm cut-off (nominal)>80% (avg) trans. from 390nm to 480nm>99% (avg) Refl. from 540nm to 750nm |
| Size | 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Blue Dichroic Additive, 50.0 x 50.0 | |
| PART NO. | 505FD64-50S |
| Filter Type | Blue Dichroic Additive |
| Transmission | >80% avg. from 390 to 480nm |
| Reflection | |
| Nominal 50% point(s) | 505nm cut-off (nominal)>80% (avg) trans. from 390nm to 480nm>99% (avg) Refl. from 540nm to 750nm |
| Size | 50.0 x 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Yellow Dichroic Subtractive, 25.0 | |
| PART NO. | 520FD22-25 |
| Filter Type | Yellow Dichroic Subtractive |
| Transmission | >85% avg. from 550 to 750nm |
| Reflection | |
| Nominal 50% point(s) | 50% pt.: 520nm nominalT(avg) < 1% from 410 - 475nmT(avg) > 85% from 550 - 750nm |
| Size | 25.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Yellow Dichroic Subtractive, 50.0 | |
| PART NO. | 520FD22-50 |
| Filter Type | Yellow Dichroic Subtractive |
| Transmission | >85% avg. from 550 to 750nm |
| Reflection | |
| Nominal 50% point(s) | 50% pt.: 520nm nominalT(avg) < 1% from 410 - 475nmT(avg) > 85% from 550 - 750nm |
| Size | 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Yellow Dichroic Subtractive, 50.0 x 50.0 | |
| PART NO. | 520FD22-50S |
| Filter Type | Yellow Dichroic Subtractive |
| Transmission | >85% avg. from 550 to 750nm |
| Reflection | |
| Nominal 50% point(s) | 50% pt.: 520nm nominalT(avg) < 1% from 410 - 475nmT(avg) > 85% from 550 - 750nm |
| Size | 50.0 x 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Green Dichroic Additive, 25.0 | |
| PART NO. | 540FD66-25 |
| Filter Type | Green Dichroic Additive |
| Transmission | >85% min. at 540nm |
| Reflection | |
| Nominal 50% point(s) | 505nm & 575nm (nominal)T(avg) < 1% from 360 - 460nmT(abs) > 85% @ 540nmT(avg) < 1% from 600 - 730nm |
| Size | 25.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Green Dichroic Additive, 50.0 | |
| PART NO. | 540FD66-50 |
| Filter Type | Green Dichroic Additive |
| Transmission | >85% min. at 540nm |
| Reflection | |
| Nominal 50% point(s) | 505nm & 575nm (nominal)T(avg) < 1% from 360 - 460nmT(abs) > 85% @ 540nmT(avg) < 1% from 600 - 730nm |
| Size | 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Green Dichroic Additive, 50.0 x 50.0 | |
| PART NO. | 540FD66-50S |
| Filter Type | Green Dichroic Additive |
| Transmission | >85% min. at 540nm |
| Reflection | |
| Nominal 50% point(s) | 505nm & 575nm (nominal)T(avg) < 1% from 360 - 460nmT(abs) > 85% @ 540nmT(avg) < 1% from 600 - 730nm |
| Size | 50.0 x 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Magenta Dichroic Subtractive, 25.0 | |
| PART NO. | 550FD26-25 |
| Filter Type | Magenta Dichroic Subtractive |
| Transmission | >80% avg. from 380 to 475nm & 650 to 750nm |
| Reflection | |
| Nominal 50% point(s) | 495nm and 605nm (nominal)T(avg) > 80% from 380 - 475nmT(avg) < 1% from 535 - 565nmT(avg) > 80% from 650 - 750nm |
| Size | 25.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Magenta Dichroic Subtractive, 50.0 | |
| PART NO. | 550FD26-50 |
| Filter Type | Magenta Dichroic Subtractive |
| Transmission | >80% avg. from 380 to 475nm & 650 to 750nm |
| Reflection | |
| Nominal 50% point(s) | 495nm and 605nm (nominal)T(avg) > 80% from 380 - 475nmT(avg) < 1% from 535 - 565nmT(avg) > 80% from 650 - 750nm |
| Size | 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Magenta Dichroic Subtractive, 50.0 x 50.0 | |
| PART NO. | 550FD26-50S |
| Filter Type | Magenta Dichroic Subtractive |
| Transmission | >80% avg. from 380 to 475nm & 650 to 750nm |
| Reflection | |
| Nominal 50% point(s) | 495nm and 605nm (nominal)T(avg) > 80% from 380 - 475nmT(avg) < 1% from 535 - 565nmT(avg) > 80% from 650 - 750nm |
| Size | 50.0 x 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Red Dichroic Reflective, 25.0 | |
| PART NO. | 580FD70-25 |
| Filter Type | Red Dichroic Reflective |
| Transmission | >85% avg. from 400 to 550nm |
| Reflection | |
| Nominal 50% point(s) | 50% pt.: 580nm nominalT(avg) > 85% from 400 - 550nmT(avg) < 10% from 610 - 725nm |
| Size | 25.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 45.0° |
| Operating Temp. (°C.) | +200 max. |
| Red Dichroic Reflective, 50.0 | |
| PART NO. | 580FD70-50 |
| Filter Type | Red Dichroic Reflective |
| Transmission | >85% avg. from 400 to 550nm |
| Reflection | |
| Nominal 50% point(s) | 50% pt.: 580nm nominalT(avg) > 85% from 400 - 550nmT(avg) < 10% from 610 - 725nm |
| Size | 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 45.0° |
| Operating Temp. (°C.) | +200 max. |
| Red Dichroic Reflective, 50.0 x 50.0 | |
| PART NO. | 580FD70-50S |
| Filter Type | Red Dichroic Reflective |
| Transmission | >85% avg. from 400 to 550nm |
| Reflection | |
| Nominal 50% point(s) | 50% pt.: 580nm nominalT(avg) > 85% from 400 - 550nmT(avg) < 10% from 610 - 725nm |
| Size | 50.0 x 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 45.0° |
| Operating Temp. (°C.) | +200 max. |
| Red Dichroic Additive, 25.0 | |
| PART NO. | 585FD62-25 |
| Filter Type | Red Dichroic Additive |
| Transmission | >80% avg. from 610 to 730nm |
| Reflection | |
| Nominal 50% point(s) | 50% pt: 585nm nominalT(avg) < 1% from 370 - 550nmT(avg) > 80% from 610 - 730nm |
| Size | 25.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Red Dichroic Additive, 50.0 | |
| PART NO. | 585FD62-50 |
| Filter Type | Red Dichroic Additive |
| Transmission | >80% avg. from 610 to 730nm |
| Reflection | |
| Nominal 50% point(s) | 50% pt: 585nm nominalT(avg) < 1% from 370 - 550nmT(avg) > 80% from 610 - 730nm |
| Size | 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Red Dichroic Additive, 50.0 x 50.0 | |
| PART NO. | 585FD62-50S |
| Filter Type | Red Dichroic Additive |
| Transmission | >80% avg. from 610 to 730nm |
| Reflection | >99% avg. from 370 to 550nm |
| Nominal 50% point(s) | 50% pt: 585nm nominalT(avg) < 1% from 370 - 550nmT(avg) > 80% from 610 - 730nm |
| Size | 50.0 x 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Cyan Dichroic Subtractive, 25.0 | |
| PART NO. | 590FD24-25 |
| Filter Type | Cyan Dichroic Subtractive |
| Transmission | >80% avg. from 400 to 550nm |
| Reflection | |
| Nominal 50% point(s) | 50% pt.: 590nm nominalT(avg) > 80% from 400 - 550nmT(avg) < 1% from 640 - 740nm |
| Size | 25.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Cyan Dichroic Subtractive, 50.0 | |
| PART NO. | 590FD24-50 |
| Filter Type | Cyan Dichroic Subtractive |
| Transmission | >80% avg. from 400 to 550nm |
| Reflection | |
| Nominal 50% point(s) | 50% pt.: 590nm nominalT(avg) > 80% from 400 - 550nmT(avg) < 1% from 640 - 740nm |
| Size | 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
| Cyan Dichroic Subtractive, 50.0 x 50.0 | |
| PART NO. | 590FD24-50S |
| Filter Type | Cyan Dichroic Subtractive |
| Transmission | >80% avg. from 400 to 550nm |
| Reflection | |
| Nominal 50% point(s) | 50% pt.: 590nm nominalT(avg) > 80% from 400 - 550nmT(avg) < 1% from 640 - 740nm |
| Size | 50.0 x 50.0 +0/-0.25mm |
| Thickness | 1.0 +0.25/-0.25 mm |
| Angle of Incidence | 0° |
| Operating Temp. (°C.) | +200 max. |
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