Cage Supports
Features - Clamps and Brackets Provide a Means to Support Cage Segments with Posts
- Solutions Available for 16 mm, 30 mm, and 60 mm Cage Systems
- Options for Mini Series, Ø1/2", Ø1", and Ø1.5" Posts
- CRA30 Connects a 30 mm Cage Segment to a PR01 Rotation Stage
Thorlabs introduced Cage Systems to ensure compatibility over a broad range of product lines. Cage System components offer a simple and efficient solution for building optomechanical structures. The Cage System compatible products include lens tubes, fixed mounts, kinematic mounts, and irises to provide flexibility when constructing complex optical systems. Mounting a Cage System to a Post The SMB1 (16 mm), CP02B (30 mm), and the LCP01B (60 mm) Cage Mounting Brackets are secured to two cage rods and allow the cage to be mounted to a post via a counterbored hole. The SMB1 offers one 4-40 (M3) counterbore, while the CP02B and LCP01B have three 8-32 (M4) counterbores. The C10 series is offered in three versions, one for each cage size, and mounts a cage to a Ø1" post. The C15 series is also available for each cage size, but it clamps to a Ø1.5" post. These clamps provide a way to quickly connect or disconnect a cage system, thus allowing for interchanging cage setups.
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 An example of the standard cage plate measurements determining cage system compatibility. Cage System OverviewThe Cage Assembly System provides a convenient way to construct large optomechanical systems with an established line of precision-machined building blocks designed for high flexibility and accurate alignment. 16 mm, 30 mm, and 60 mm Cage System StandardsThorlabs offers three standards defined by the center-to-center spacing of the cage assembly rods (see image to right). The 16 mm cage, 30 mm cage, and 60 mm cage standards are designed to accomodate Ø1/2", Ø1", and Ø2" optics, respectively. Specialized cage plates that allow smaller optics to be directly inserted into our larger cage systems are also available. Standard ThreadsThe flexibility of our Cage Assembly System stems from well-defined mounting and thread standards designed to directly interface with a wide range of specialized products. The three most prevalent thread standards are our SM05 Series (0.535"-40 thread), SM1 Series (1.035"-40 thread), and SM2 Series (2.035"-40 thread), all of which were defined to house the industry's most common optic sizes. Essential building blocks, such as our popular lens tubes, directly interface to these standards. | Standard Cage System Measurements |
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| Cage System | 16 mm | 30 mm | 60 mm | | Thread Series | SM05 | SM1 | SM2 | | Rod to Rod Spacing | 16 mm (0.63") | 30 mm (1.18") | 60 mm (2.36") | | Total Length | 25 mm (0.98") | 41 mm (1.60") | 71.1 mm (2.8") |
| Cage Components |
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| Cage Rods | 16 mm | These rods are used to connect cage plates, optic mounts, and other components in the cage system. The SR Series Cage Rods are compatible with our 16 mm cage systems, while the 30 mm and 60 mm cage systems use ER Series Cage Rods. | | 30 mm | | 60 mm | | Cage Plates | 16 mm | These serve as the basic building blocks for a cage system. They may have SM-threaded central bores, smooth bores sized for industry standard optics or to accommodate the outer profile of our SM Series Lens Tubes, or specialized bores for other components such as our FiberPorts. | | 30 mm | | 60 mm | | Optic Mounts | 16 mm | Thorlabs offers fixed, kinematic, rotation, and translation mounts specifically designed for our Cage Systems. | | 30 mm | | 60 mm | | Cage Cubes | 16 mm | These cubes are useful for housing larger optical components, such as prisms or mirrors, or optics that need to sit at an angle to the beam path, such as beamsplitters. Our cage cubes are available empty or with pre-mounted optics. | | 30 mm | | 60 mm | | Post and Breadboard Mounts and Adapters | Mounting options for cage systems can be found on our Cage System Construction pages. Cage Systems can be mounted either parallel or perpendicular to the table surface. | | Size Adapters | Cage System Size Adapters can be used to integrate components from different cage system and threading standards. | | Specialized Components | Thorlabs also produces specialized cage components, such as Filter Wheels, a HeNe Laser Mount, and a FiberPort Cage Plate Adapter, allowing a wide range of our products to be integrated into cage-mounted optical systems. Explore our Cage Systems Visual Navigation Guide to see the full range of Thorlabs' cage components. |
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Additional Cage System Construction
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