CSA-V series 1 Inch Visible Tube SM1 Lens Tube Lens Tube Lens Shading Tube Optical Experiment Scientific Research

  Product information   Model CSA-40V CSA-50V CSA-60V Specification Ø34.3*50.1mm Ø34.3*60.1mm Ø34.3*70.1mm Thread Depth 46.35mm 56.35mm 66.35mm Thread Type SM1 (1.035"-40) Internal and External Thread Weight 33.9g 39.4g 44.5g Material 7075 Aluminum Alloy   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 ►Convenient and easy to operate optical components, can be opera