Thorlabs offers several styles of cage plates for our 16 mm Cage System. Standard plates are designed to hold Ø1/2" optics with various thicknesses. SM05-threaded versions are designed to interface with our Ø1/2" Lens Tubes and SM05-threaded optics. For applications requiring quick changes in components, we offer both quick release cage plates and removable cage segment plates. A translating cage segment plate allows for lateral offsets between cage system segments.