Mirrors
Lenses, prisms, mirrors and other optical elements, of any material, mounted, being parts of or fittings for instruments or apparatus, other than such elements of glass not optically worked; parts and accessories thereof: > Other: > Mirrors
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 9002.90.40.00
Fiber Optic Coupler Mirror
A 45-degree mounted mirror for coupling free-space beams into single-mode fibers in telecom test equipment. HTS 9002.90.40.00 as mounted optical element for fiber inspection apparatus.
Holography Reconstruction Mirror
A phase-conjugated mirror mounted for wavefront reconstruction in holographic interferometry setups. Falls under HTS 9002.90.40.00 for mounted use in specialized optical recording apparatus.
Schlieren Imaging Mirror
A large parabolic mirror pair mounted for flow visualization in schlieren wind tunnel imaging systems. Classified HTS 9002.90.40.00 as mounted optics for aerodynamic research apparatus.
Beam Expander Mirror Set
Two concave-convex mirrors mounted in a barrel for expanding laser beams in material processing optics. HTS 9002.90.40.00 for mounted mirrors as fittings for optical apparatus.
Mounted Dielectric Laser Mirror
A high-reflectivity dielectric mirror mounted in a precision optical holder, designed for use in laser cavities or beam steering systems within scientific instruments. It falls under HTS 9002.90.40.00 as a mounted optical mirror that is a part or fitting for optical apparatus, excluding unworked glass mirrors.
Precision Aluminum Coated Mirror Mount
An aluminum-coated front-surface mirror securely mounted in an adjustable kinematic mount for alignment in interferometers or spectrometers. Classified under HTS 9002.90.40.00 as a mounted mirror fitting for optical instruments, distinct from simple reflective glass.
Dichroic Beam Splitter Mirror
A thin-film dichroic mirror mounted on a substrate for separating wavelengths in fluorescence microscopes or multi-laser systems. It qualifies for HTS 9002.90.40.00 as a specialized mounted optical element for apparatus in this chapter.
Endoscope Optical Mirror Assembly
A compact mirrored prism assembly mounted for image relay in rigid endoscopes used in medical diagnostics. Falls under HTS 9002.90.40.00 as a mounted mirror part for optical medical instruments.
Interferometer Reference Mirror
A super-polished flat mirror mounted in a vibration-isolated holder for use as a reference surface in laser interferometers for precision metrology. Classified in HTS 9002.90.40.00 for its role in mounted optical measuring instruments.
Galvanometer Scanner Mirror
A lightweight gold-coated mirror mounted on a galvanometer for high-speed beam deflection in laser marking or show systems. HTS 9002.90.40.00 applies as a mounted optical element for scanning apparatus.
Microscope Objective Mirror
A parabolic mirror mounted in a turret assembly for reflecting objectives in infinity-corrected microscopes. It is classified under HTS 9002.90.40.00 as a mounted mirror fitting for compound microscopes.
Telescope Secondary Mirror
An ellipsoidal mirror mounted in a cell for correcting aberrations in Cassegrain reflecting telescopes used in observatories. Falls under HTS 9002.90.40.00 excluding machine telescopes per note 5.
Spectrometer Collimating Mirror
A gold-coated off-axis parabolic mirror mounted for collimating light in Fourier transform infrared spectrometers. Classified as HTS 9002.90.40.00 for mounted use in analytical optical apparatus.
Projection System Fold Mirror
A large diagonal mirror mounted in a frame to fold the optical path in DLP projectors for compact design. HTS 9002.90.40.00 covers it as a mounted mirror for projection apparatus.
Alignment Telescope Mirror
A precision flat mirror mounted for bore sighting in alignment telescopes used in machine tool setup. Classified under HTS 9002.90.40.00 but watch exclusions for machine tools.