Laser Micrometer Beam Splitter Prism
A specialized dichroic prism that splits laser measurement and reference beams in dual-axis optical micrometers. This component ensures measurement accuracy through precise beam separation. It is classified as a specific part of optical measuring instruments under 9031.90.90.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as an unmounted optical element
Unmounted prisms are classified in heading 9001, while mounted parts for instruments fall under Chapter 90.
If imported as part of a complete laser micrometer
Complete instruments are classified under the specific instrument heading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Declare as a part of a measuring instrument under Chapter 90, not as a standalone optical element
• Provide evidence of its specific design for dual-axis laser micrometers
• Consider whether the dichroic coating affects classification under heading 9001 or 9002
Related Products under Tariff item 9031.90.90
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A precision cell housing objective lens assembly for autocollimator angle measuring instruments. The thermal compensation design maintains alignment stability. It is classified under 9031.90.90 as a part for other optical checking appliances.
Calibration Test Gage Block Holder
A precision kinematic mount holding gage blocks under optical microscopes for calibration verification. It ensures accurate positioning during length standard comparison and is a measuring instrument accessory. Classified under 9031.90.90 as a part of measuring instruments.
Digital Readout Interface Cable for Metrology Instruments
A shielded cable assembly designed to connect optical encoders to digital display units in metrology instruments. It ensures noise-free signal transmission for precise measurements, qualifying as an accessory for measuring or checking appliances of Chapter 90.
Fiber Optic Light Guide Bundle for Microscopes
A flexible coherent fiber bundle that transmits illumination to measuring microscope workpieces, maintaining light intensity uniformity. It is an accessory for optical measuring instruments, enhancing their functionality under Chapter 90.
Laser Alignment Lens for Optical Micrometer
A precision-ground optical lens used in laser micrometers to focus the laser beam for measuring object dimensions with micron accuracy. This component is specifically designed as a replacement part for laser micrometers classified under tariff item 9031.41.00. It is classified under 9031.90.90 as a part or accessory of measuring instruments.
Laser Gauge Dust Shield Window
A sapphire or fused silica protective window for laser micrometer optical heads, preventing contamination while maintaining beam transmission. The anti-reflective coating ensures measurement accuracy. This product is classified as a protective part of optical measuring instruments under 9031.90.90.