CSA2 Series Ø2 Inch Male-to-Female Lens Tube

Product Description

• SM2 (2.035″-40) threaded bore for mounting Ø2 inch (Ø50.8 mm) optical elements.
• Dual-end internal and external threads, stackable design.
• Stackable architecture for building multi-element optical systems.
• Compatible with our 60 mm cage assembly system.
• Can be used as a light-shielding component for lens tubes to block light paths and provide opaque light isolation.

These Ø2 inch stackable lens tubes allow quick and simple construction of compact optical assemblies. Featuring a stackable design, they directly engage all SM2 (2.035″-40) threaded components, supporting flexible assembly of complex optomechanical setups.

 

Ø2 Inch Lens Tube
Thread Type	SM2 (2.035”-40) thread, with 3 mm protruding thread
Outer Diameter	Ø55.9 mm
Compatibility	Fits Ø50.8 mm optical elements
Material	7075 Aluminum Alloy

Technical Description

 

These lens tubes are ideal for building compact optical assemblies. The Ø2 inch lens tubes accommodate one or more optical elements (as shown in the beam expander diagram). Optical elements are separated and fixed with retaining rings positioned at the desired depth inside the tube. (One retaining ring is included; additional rings are available for separate purchase.)

The lens tubes feature SM2 (2.035”-40) external threads. These Ø2 inch stackable lens tubes enable fast and simple construction of compact optical assemblies. Their stackable design allows direct connection to all SM2 (2.035″-40) threaded components, facilitating flexible assembly of complex optomechanical systems.

Compatible with our 60 mm cage assembly system. In cage systems, they can serve as light-shielding elements for lens tubes to block light paths and provide opaque light isolation.

Multiple models are available.

Assembly

Application Examples

Engineering Drawings

CSA2 Engineering Drawing