Image Orthicon Camera Tube
Image Orthicon tubes were advanced photocathode CRTs used in early high-sensitivity TV cameras for live broadcasts and studio production. They multiply low-light electrons for intensified imaging. HTS 8540.20.20 covers these as other photocathode tubes specifically for television cameras.
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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 classified as other photocathode tubes not for cameras
Subheading 8540.20.40 covers general photocathode tubes excluding specific camera/image converter types.
If for color picture tube applications
Parts of color TV receivers have dedicated subheadings under 8529 for display CRTs.
If when part of complete projector assemblies
LED/other projector lamps classify under lighting fittings, not raw tubes.
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Import Tips & Compliance
• Include engineering drawings showing photocathode and multiplier stages unique to camera function
• Age-related fragility requires robust packaging declarations to avoid damage claims
• Consult CBP rulings for legacy tube imports to confirm continued camera tube status
Related Products under HTS 8540.20.20
Plumbicon Television Camera Tube
The Plumbicon is a specialized cathode-ray tube used in professional broadcast television cameras for superior image quality and low-light performance. It functions as a photocathode tube converting light into electrical signals via electron scanning. This falls under HTS 8540.20.20 as a television camera tube, distinct from standard display CRTs.
Vidicon Camera Tube
Vidicon tubes are photoconductive cathode-ray tubes historically used in closed-circuit TV and early video cameras for reliable imaging in security systems. They feature a photocathode layer scanned by an electron beam to generate video signals. Classified under HTS 8540.20.20 as television camera tubes per the thermionic/photocathode heading.
Return Beam Vidicon RBV Tube
Return Beam Vidicon (RBV) tubes are specialized CRTs used in satellite and aerial television cameras for high-resolution remote sensing imagery. The electron beam returns to scan the target for enhanced signal. Falls under HTS 8540.20.20 as television camera tubes with photocathode technology.
Photomultiplier Cathode-Ray Tube
Photomultiplier CRTs are photocathode tubes functioning as television camera tubes in low-light scientific and military imaging systems. They amplify photon signals via electron multiplication. HTS 8540.20.20 includes these as image intensifiers and other photocathode tubes for cameras.
Studio Broadcast Camera CRT
High-end cathode-ray tubes designed for professional studio television cameras, providing broadcast-quality pickup tubes with extended dynamic range. Features low lag photocathodes for live production. Specifically classified under HTS 8540.20.20 for television camera tubes.
Medical Endoscope Camera Tube
Miniaturized cathode-ray tubes used in medical endoscope television cameras for internal imaging during procedures. Compact photocathode design fits fiber-optic bundles. HTS 8540.20.20 applies as television camera tubes for specialized medical applications.