IdealPhotonics' lens sleeve is a cylindrical mechanical component used for the precise fixing and positioning of optical lenses. It typically features internal threads or a retaining ring structure to ensure the lens's optical axis coincides with the mechanical axis, while also providing protection and facilitating integration into optical systems.Through a precision inner diameter and adjustable retaining ring structure, it achieves concentric fixing and quick assembly/disassembly of the lens, while also providing optical axis alignment and dust protection. It is compatible with modular optical system construction.