Penta Prism Assembly for Surveying Theodolites
A roof penta prism mounted in an aluminum housing, essential for maintaining image orientation in surveying theodolites regardless of rotation. Classified under HTS 9002.90.20.00 as a mounted optical element for precision instruments. It deviates the line of sight by 90 degrees without inverting the image.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when sold as part of complete surveying telescope assembly
Complete optical instruments for surveying classify in 9015, not component parts.
If for coordinate measuring machines (CMM)
Optical parts principally used with 9031 measuring machines classify there per chapter note 2(b).
If imported unmounted or without specified instrument compatibility
Unmounted prisms or those not proven as instrument fittings fall under the base optical elements heading.
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Import Tips & Compliance
• Provide instrument compatibility certification; generic prisms may face scrutiny
• Declare AR coatings and materials precisely to match subheading requirements
• Ensure customs valuation includes mounting hardware as integral to the optical function
Related Products under HTS 9002.90.20.00
Mounted Right Angle Prism for Laser Alignment
A right-angle prism mounted in a precision holder, used as an optical component in laser alignment instruments to redirect light beams by 90 degrees. It falls under HTS 9002.90.20.00 as a mounted prism serving as a part for optical instruments. The mounting ensures compatibility with apparatus like surveying tools or interferometers.
Dispersive Prism for Spectrometer Optics
Equilateral dispersive prism mounted in a spectrometer's optical train to separate wavelengths of light for spectral analysis. HTS 9002.90.20.00 applies as a mounted prism functioning as a key part of analytical instruments. Typically made from flint glass for high dispersion properties.
Porro Prism Pair for Binocular Optics
Pair of mounted Porro prisms that provide upright image in binocular telescopes by folding the optical path. Classified under HTS 9002.90.20.00 as essential mounted optical elements for binocular instruments. The mounting aligns precisely within the binocular housing.
Anamorphic Prism Pair for Laser Beam Shaping
Matched pair of mounted cylindrical prisms that reshape elliptical laser beams to circular profiles in diode laser systems. HTS 9002.90.20.00 classification as mounted prisms for laser optical instruments. AR coatings optimize transmission for high-power applications.
Dove Prism for Image Rotation in Microscopes
Mounted Dove prism used in microscope accessories to rotate field of view without changing focus. Falls under HTS 9002.90.20.00 as a mounted optical element for compound microscopes. Provides continuous 360-degree image rotation capability.
Wollaston Prism for Polarizing Microscopes
Birefringent Wollaston prism mounted for interference microscopy to split polarized light into orthogonal beams. HTS 9002.90.20.00 as specialized mounted prism for petrographic microscopes. Creates shear interference patterns for material stress analysis.