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The LCP01(/M) is among our most popular 60 mm cage plates. It provides a center-located SM2 (2.035"-40) threaded bore that accepts a Ø2" optic up to 0.35" (8.9 mm) thick and is compatible with our popular lens tubes. Two SM2RR retaining rings are included that are used to hold an optic within the cage plate. Each cage rod through-hole is accompanied by a side-located locking setscrew. For additional convenience, an 8-32 (M4) tapped hole is provided for post mounting and OEM-mounting applications. As shown in the family image at the top of the page, the LCP01/M has a small dimple to indicate that it is a metric part.

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The LCP01T(/M) is designed for cage mounting of Thorlabs' thickest Ø2" optics. The center-located SM2-threaded (2.035"-40) bore is designed to hold optics up to 0.70" (17.8 mm) thick. Two SM2RR retaining rings are provided and can be used to hold an optic within the aperture of the cage plate. The cage rod through holes have side-located locking set screws for securing the position of the LCP01T(/M) within the cage. Additionally, an 8-32 (M4) tapped hole is provided for post-mounting applications. Like the LCP01/M, the LCP01T/M has a small dimple to indicate that it is a metric part (see the image at the top of the page).

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View of the Flexure Clamping Mechanism

• Directly Accepts Ø2" Optics up to 0.35" (8.9 mm) Thick
• Mounts Bulk Optics Within a 60 mm Cage System Assembly
• Tapped with Our Standard SM2 (2.035"-40) Thread 
• Post Mountable via 8-32 (M4) Tapped Hole

The LCP08(/M) improves upon the popular LCP01(/M) design, providing the same center-located SM2-threaded (2.035"-40) bore and 8-32 (M4) mounting hole, but offering a more stable flexure clamping mechanism for our standard ER rods. Four cap screws, each with a 5/64" (2.5 mm) hex, activate the flexure clamp, which increases the surface area in contact with the ER rods. The center-threaded bore of the LCP08(/M) can directly accept a Ø2" optic up to 0.35" (8.9 mm) thick. One SM2RR retaining ring is included; for direct mounting of optics, a second SM2RR must be purchased. Thicker optics may be mounted in an SM2 Lens Tube, which can be threaded onto the cage plate. As with the LCP01/M shown at the top of the page, the LCP08/M also features a small dimple indicating it is a metric part.

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The LCP06(/M) is a 60 mm cage plate featuring a Ø2.00" double bore which centers the optic. A nylon-tipped locking setscrew provides a third point of contact and secures optics at least 0.27" (6.9 mm) thick. Each cage rod through hole includes a side-located locking setscrew for securing the position of the LCP06(/M) within a 60 mm cage system. For additional convenience, an 8-32 (M4) tapped hole is provided for post mounting and OEM mounting applications. As with the LCP01/M shown at the top of the page, the LCP06/M also features a small dimple indicating it is a metric part.

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• Ø2.2" Bore Supports Outside Diameter of SM2 Lens Tubes
• Compatible with 60 mm Cage Systems
• Nylon-Tipped Setscrew and Double Bore Securely Hold Lens Tubes
• Not Post Mountable

The LCP09 Cage Plate is designed to allow our SM2 lens tubes to slide into the cage plate and be locked in position with a nylon-tipped setscrew. This cage plate is ideal for situations where it is not desirable to thread the lens tube into one of our threaded cage plates. A double-bore design gives three points of contact for stable and secure mounting.

Please note that this plate does not feature a tapped mounting hole, unlike many of our other cage plates. Due to the bore size, there would be interference between the threaded stud on our Ø1/2" posts and the clear aperture of the bore. Therefore, this cage plate cannot be used directly with Ø1/2" Posts, and a cage system utilizing this plate must be supported using a different method.

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• Couples 30 mm and 60 mm Cage Systems
• Centered SM1 (1.035"-40) Tapped Hole Directly Accepts Ø1" Optics up to 0.35" (9 mm) Thick
• 8-32 (M4) Tapped Hole for Post Mounting

The LCP02(/M) cage plate provides a convenient means for coupling 30 mm and 60 mm cage assemblies via our Ø6 mm ER Cage Rods. The centered SM1 (1.035"-40) tapped hole directly accepts optics up to 0.35" (9 mm) thick (SM1RR retaining rings sold separately). Each cage rod through hole is accompanied by a side-located locking setscrew. The LCP02(/M) also has an 8-32 (M4) tapped hole for post-mounting.

Additionally, two of these cage plates can be used to straddle a 30 mm cage subassembly in such a way that the entire assembly [LCP02(/M), 30 mm subsystem, and LCP02(/M)] can slide along the 60 mm cage rods as a single optomechanical unit. A 16 mm cage assembly can also be easily integrated by utilizing the SP05 cage plate adapter (sold above).

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The LC Series cage plates for 60 mm systems are ideally suited for assembling optical systems that are based upon Ø2" optical components. Each cage plate contains four through-holes, which are located at the corners. These holes are machined for a precision slip fit with ER cage rods and are fastened using locking setscrews located on the side of the plate. The LCP03/M has a small dimple to indicate that it is a metric part.

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The LCPA1 alignment plate provides a convenient tool for aligning 60 mm cage-based optical systems. This drop-in plate locates a
Ø1 mm through-hole at the exact center of a cage assembly, providing a convenient visual target to assist in beam alignment.