CSA-31X Tube Shielding Kit Retractable Lens Tube Shading Assembly Optical Path with SM External Thread Tube Accessories

Product information

Optical commonly used thread size standard

This is the unique thread of Thorlabs in the United States, not the commonly used optical thread. SM is the code for the thread of the sewing machine in terms of thread expression, but this company in the United States uses it to connect the internal and external threads of the optical lens and the sleeve. The nature of the thread is UNS, and the United States has a special thread with a tolerance accuracy of 2A / 2B. The special place of this thread is 40 teeth per inch regardless of the diameter. The specific dimensions are as follows:

Characteristic

▶Achieve light leakage shielding between cage plate and cage plate, or cage plate sleeve in a 30mm cage system;

▶The shield can be stretched within 50mm without any restriction, forming a closed light path;

▶Fixable and stretchable design, providing flexible opaque solutions;

▶With SM1 (1.035"-40 external thread on both ends;

▶Provide airtight shading and structural rigidity;

▶Compatible with 30mm cage system;

(1) Suitable for the case where the length between the lens tubes is not enough to fully shield the light leakage; both ends have SM1 (1.035"-40) external threads, which can be used for the connection between SM1 internal thread components. For example, 30 mm Realize the light leakage shielding between the cage plate and the cage plate, or the cage plate and the sleeve in the cage system;

(2) The casing shielding kit can realize one end fixed and the other unrestricted rotation and stretching. The length of the casing can be stretched with a maximum stroke of 19mm, a minimum total length of 31mm and a maximum of 50mm. In the event of light leakage, the shield can be stretched within 50mm without any restriction to form a closed light path.

Measurement error: Please allow a small measurement error.