The LBS-100 beam sampling and absorption system (P/N SP90059) is not as compact as the LBS-300s above but has a larger aperture, and is designed for 9 to 11 µm. The system contains the mounting frame, 1 wedge beam splitter and several attenuators. The exit end of the LBS-100 is standard C mount thread so all our cameras can be mounted to the frame. The wedge angle is 6.5 degrees to ensure that the reflection from the rear side will not enter the camera. The optical elements are flat to 1/4 wave in the visible to ensure no distortion of the beam.