► SM1 (1.035 "- 40) full thread connector;
► Connect the two lens sleeves together;
► The locking ring produces mechanical stop along the thread;
► Different lengths are optional;
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:
(1) SM1-T series lens sleeve connectors are used to connect two lens sleeves with SM1 internal threads at both ends. The
connector has a full section of external thread, which can optimize the position and angle of the connecting components. When the direction is adjusted, the length of the sleeve will also change. It is attached with a lock ring (SM1-T025 is not equipped with a lock ring), and the connected components can be tightened by hand. These adapters have a light tight design and are very suitable for connecting existing lens bushing systems or cage systems.
(2) Additional locking rings can also be purchased separately to limit the external thread depth of the SM1 threaded assembly. Multiple locking rings can be used to lock the lens sleeve independently, such as when using orthogonal polarizers.
(3) Different thread lengths are available
- Additional Information