Reflector components are used to set up and adjust DMD optical path. Horizontal and vertical incident light beam is reflected by a reflective mirror component to the DMD chip, resulting in horizontal and vertical outgoing light beam. Reflector components can’t block 1st order light beam.  The reflector components are different for UPOLabs DMD HDSLM108D65NIR,HDSLM108D95 (same for HDSLM756D90), HDSLM136D70(same for HDSLM756D65).Click to download Installation Diagram and Mechanical Drawing.