CSM2-T Series CSM2-T8 Ø2" Adjustable Lens Tube Lens Tube Stacked SM2 Threaded Rotating Frame for Cage System Optical Experiment

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:

Parameter:(Multiple specifications are available)

Characteristic:

►Adjust the position of the optical element along the optical axis in the SM2 lens tube system;

►SM2 (2.035" -40) internal thread and external thread;

►Provide rotatable or non-rotatable optical element design version;

►Three adjustment ranges: 8mm, 16mm, 24mm;

►Long external thread section for adjustable positioning of installed optical components;

►The maximum thickness of the optical components that can be installed is 10mm;

►With 1 SM2 standard snap rings;

Description:

(1)(2) Build an optical cage experiment platform.

(3) Drawing display.

(4) The adjustable lens tube allows an optical element to be adjusted along the optical axis in the lens tube system. Our length adjustable sleeve is designed to accommodate a Ø2" optical element with a maximum thickness of 10mm. For operation, the optical element is installed in the internal threaded section through the attached SM2 retaining ring. Then screw the adjustable sleeve into a compatible SM2 threaded sleeve or lens mount until the optical element reaches the desired position, and use the attached locking ring to fix the position of the sleeve.

(With 1 snap rings, if you need more snap rings, you need to purchase additional snap rings separately)

(5) These SM2 threaded (2.035"-40) adjustable lens tubes have extra-long external threaded sections, which can position Ø2" optics along the optical axis of the lens tube system. Tubes of different specifications are available The maximum stroke of the rotating optical element: 8mm/16mm/24mm.

(6) It can be installed between two fixed lens tubes. These adjustable lens tubes are ideal for fine-tuning the first and last lens in a lens tube system. Although the lens tube can be connected to the front end of the adjustable lens tube, this operation can only be performed after the position of the optical element is fixed, because if the position of the optical element changes, the length of the adjustable lens tube Need to perform free rotation and translation.

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