二向色滤光片（分色滤光片）用于需要隔离可见光谱的某些区域的各种应用中。一些较常见的应用是用于彩色放大器和复印机作为光平衡滤光器。它们在任何可能需要将入射能量分成两个或多个光束的应用中也非常有用。以下光谱曲线以垂直入射方式显示，但是对于许多应用，例如组合颜色，可能希望以45°入射角以反射模式使用它们。
在这些过滤器中使用的所有涂层材料都产生坚硬，耐用的介电薄膜，其没有随着使用年限和使用而降低的迹象。与使用时会褪色的有机染料或明胶类型不同，这些过滤器非常稳定，不会随着时间的推移而损失任何效率。这些过滤器也可以成套使用。过滤器也可以安装在螺纹环中。
可根据要求提供定制尺寸，基材和光谱特性。
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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