In experiments such as transmission optical path, fiber alignment, microscopic imaging, and sample transmission detection, it is often necessary to use the light passage channel of the translation stage to meet both the requirements of high-precision fine-tuning and direct light path transmission. The Sefan Optoelectronics 7STM08113 smooth translation stage is specially designed for transmission optical systems, equipped with a central light passage hole, with sub-micron displacement sensitivity, and is a cost-effective solution for compact and precise optical path setup.

This translation stage adopts a precision steel ball combined with a finely ground steel rod guide structure, along with a center-mounted fine-threaded screw drive. The operation is smooth and convenient. It is equipped with a spring reset damping structure to effectively eliminate axial transmission clearance, ensuring smooth adjustment with no slack or hesitation, and the displacement sensitivity can reach 0.002mm, with a positioning accuracy of 0.002mm. The linear motion straightness and flatness are better than 2μm, the swing angle is controlled within 10″, and the deviation during fine adjustment is minimal, ensuring the stability of the coaxial optical path and avoiding the influence of positioning deviations on the experimental results.

The core highlight is the 12×12mm light passage square hole in the center of the stage surface, allowing light to pass directly through the stage surface without the need for additional avoidance of the light path. It is suitable for special scenarios such as transmission spectroscopy, confocal optical path, transmission microscopy, and laser transmission calibration, significantly simplifying the optical layout. The travel is 13mm, suitable for precise alignment within a small range; the self-weight is only 0.4kg, with a rated load of 1kg, suitable for mounting thin sample plates, small mirror groups, fiber clamps, etc., lightweight optical components. The stage surface and base are arranged with standard optical installation holes, and adapter plates, fixtures, and mirror holders can be quickly assembled, and it can also be stacked and combined with the same series of translation stages to build two-dimensional and multi-dimensional adjustment modules, expanding the multi-degree-of-freedom adjustment system.

It is highly suitable for universities, teaching and research, and optical research laboratories for the setup of transmission optical paths: film transmission testing, fiber coupling alignment, microscopic sample fine adjustment, small laser alignment calibration, optical sensing transmission detection tools, etc. For scenarios with limited space and the need for light to pass through the translation stage, this light-passing translation stage can solve the problem of light blockage faced by ordinary translation stages. The structure is simple, and maintenance is simple.

Before each 7STM08113 unit leaves the factory, its motion smoothness, transmission clearance, and displacement consistency will be verified to ensure the stability of the accuracy of each product. Different from conventional non-light-passing translation stages, with the feature of light-passing design and high-precision fine-tuning, it fills the demand for translation adjustment of transmission optical paths, and domestic optical machine accessories are delivered quickly and have convenient after-sales response, providing reliable fine-tuning support for various transmission-type precision optical experiments.