The 80121 is a parabolic reflector with a gold coating that enhances IR reflectance. Off-axis parabolic reflectors collect radiation from a source at its focal point and reflect it as a collimated beam, parallel to the axis. Alternatively, they can tightly focus a collimated beam at its focus. The focal point is off the mechanical axis, giving full access to the reflector focus area. There are no shadowing problems if a detector, fiber or source is placed at the focus. Off-axis parabolic reflectors provide very efficient radiation control since focus or collection is over very large solid angles. This makes them particularly useful for lower power incoherent light sources. The 80121 is integrated into Oriel’s 80070 FT-IR Accessory Compartment. The 80121 is offered separately for those who wish to use it for focus or collection.


80121是一个抛物面反射器，带有金色涂层，可以增强红外反射率。离轴抛物面反射器从源的焦点处收集辐射，并将其反射为平行于轴的准直光束。或者，他们可以将一束准直的光束紧紧聚焦在它的焦点上。焦点离开机械轴，使完全进入反射器焦点区域。如果探测器、光纤或光源被放置在焦点上，就不会有阴影问题。离轴抛物面反射器提供了非常有效的辐射控制，因为焦点或集合是在非常大的实心角度。这使得它们对于低功率非相干光源特别有用。80121集成到Oriel的80070 FT-IR附件隔间。80121是单独提供给那些谁希望使用它的重点或收集。