He-Ne Laser Tube
A helium-neon gas laser tube used in scientific instruments for alignment and interferometry. It generates a continuous visible red laser beam and falls under HTS 9013.80.91.00 as a laser other than laser diodes, not specified elsewhere. This classification covers standalone optical appliances for precision applications.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If designed exclusively for laser diode integration
Laser diodes and their modules are separately classified under 9013.20, distinct from gas lasers.
If incorporated into an input unit of a complete data processing machine
Per chapter notes, parts principally for chapter 84 machines like laser printers classify there.
If functioning primarily as a measuring or checking optical instrument
Chapter note prioritizes 9031 for optical measuring appliances over general 9013 devices.
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Import Tips & Compliance
• Verify laser classification excludes laser diodes; provide technical specs confirming gas laser type
• Include safety certifications like FDA CDRH for Class IIIb lasers to avoid customs delays
• Declare wavelength and power output accurately to prevent misclassification as telecommunications equipment
Related Products under HTS 9013.80.91.00
Holographic Interferometer
An optical instrument using lasers to measure surface deformations and vibrations via holography. Classified in HTS 9013.80.91.00 as other optical appliances not elsewhere specified, distinct from basic telescopes or measuring tools. Ideal for non-destructive testing in engineering.
Optical Spectrum Analyzer
A device that analyzes the optical spectrum of light sources using diffraction gratings and detectors. It qualifies under HTS 9013.80.91.00 for other optical instruments not specified elsewhere, used in photonics R&D. Excludes electrical spectrum analyzers.
Laser Beam Profiler
An instrument using CCD cameras and optics to measure laser beam intensity profiles and quality (M² factor). Falls under HTS 9013.80.91.00 as other optical appliances for laser characterization. Not a general measuring telescope.
Schlieren Imaging System
Optical setup with parabolic mirrors and knives to visualize air flow and shock waves via density gradients. Classified HTS 9013.80.91.00 for other optical instruments in aerodynamic research. Excludes machine vision systems.
Fabry-Perot Interferometer
Precision optical cavity with parallel mirrors for measuring laser wavelengths and fine spectra. HTS 9013.80.91.00 covers this as other unspecified optical instruments for spectroscopy. Not a scanning confocal microscope.
Laser Alignment Tool
Portable optical device combining laser source, beam expander, and target for machinery alignment. Under HTS 9013.80.91.00 as other optical appliances, not technical machine parts. Used in industrial maintenance.