Television camera tubes; image converters and intensifiers; other photo-cathode tubes
Thermionic, cold cathode or photo-cathode valves and tubes (for example, vacuum or vapour or gas filled valves and tubes, mercury arc rectifying valves and tubes, cathode-ray tubes, television camera tubes). > Television camera tubes; image converters and intensifiers; other photo-cathode tubes > Television camera tubes; image converters and intensifiers; other photo-cathode tubes
Duty Rate (from China)
Subheadings
Products classified under Tariff item 8540.20
3-CCD Color Prism Camera Tube
A 3-CCD color prism camera tube uses a prism to split incoming light into RGB components, each captured by separate color cathode-ray tubes for superior broadcast quality. It qualifies as a color television camera tube under this tariff item.
8540.20.00Broadcast Studio Color Camera CRT
A broadcast studio color camera CRT is designed for professional TV studios, capturing live color footage with high resolution via electron beam scanning on a color target. It falls under this tariff item as a specialized television camera tube.
8540.20.00Color Camera Tube with Shadow Mask
A color camera tube with shadow mask incorporates a shadow mask for precise electron beam alignment to color phosphors, essential for accurate RGB reproduction. It is classified under this tariff item as a color television camera tube.
8540.20.00Color Field Sequential Camera Tube
A color field sequential camera tube uses field-sequential color filtering with a single high-speed color CRT for television cameras, common in early color TV systems. It qualifies under this tariff item as a color television camera tube.
8540.20.00Color Image Orthicon Tube
A color Image Orthicon tube is an advanced cathode-ray tube for television cameras using low-velocity electron scanning for high-sensitivity color imaging in low light. It is classified under this tariff item for its color photocathode technology.
8540.20.00Color Security Surveillance Camera Tube
A color security surveillance camera tube is a color cathode-ray tube for CCTV security cameras providing 24/7 color monitoring for television-style surveillance systems. It falls under this tariff item as a color television camera tube.
8540.20.00Color Telecine Camera Tube
A color telecine camera tube is a high-precision color CRT used in telecine film-to-video transfer machines for broadcasting motion picture film in color. It is covered under this tariff item as a specialized television camera tube.
8540.20.00Color Vidicon Camera Tube
A color Vidicon camera tube used as the imaging device in vintage television cameras, converting optical images into electrical video signals via a photoconductive target. It falls under tariff item 8540.20.00 as a television camera tube with photo-cathode technology.
8540.20.00Gen 2 Image Intensifier Tube
Second-generation image intensifier tubes use GaAs photocathodes with microchannel plates for high gain in military night vision. They are classified under 8540.20.00 as image intensifiers or photocathode tubes.
8540.20.00High-Resolution Color Studio Tube
A high-resolution color studio tube designed for 4K-equivalent studio cameras, using an advanced photocathode for detailed color capture in television production. It is classified under 8540.20.00 as a television camera tube with photo-cathode technology.
8540.20.00High-Speed Streak Camera Tube
Streak camera tubes capture ultra-fast events using photocathodes with time resolution under 50 nanoseconds for ballistics testing. They are classified under 8540.20.00 as specialized television camera tubes.
8540.20.00Image Intensifier Photocathode Tube
Image intensifier tubes convert low-light photons via photocathode to amplified electrons, creating visible images for night operations. They are classified under 8540.20.00 as image intensifiers or other photocathode tubes.
8540.20.00Image Orthicon Camera Tube
An Image Orthicon camera tube is a photocathode-based vacuum tube used in early high-sensitivity television cameras for live broadcasts and studio production. It multiplies low-light electrons to produce intensified images, falling squarely under the tariff item for television camera tubes and other photocathode tubes.
8540.20.00Industrial Inspection Camera CRT
An industrial inspection camera CRT is a rugged cathode-ray tube designed for borescope and industrial television cameras used in pipeline, aircraft, and machinery inspection. Its durable photocathode withstands harsh environments, qualifying it as a television camera tube under this tariff item.
8540.20.00Industrial Inspection Color Camera Tube
A rugged color CRT for industrial borescopes and inspection cameras used in television-monitored quality control processes. It is classified under 8540.20.00 as a television camera tube with photo-cathode technology, despite its industrial application.
8540.20.00Medical Endoscope Camera Tube
A medical endoscope camera tube is a miniaturized cathode-ray tube used in medical endoscope television cameras for internal imaging during procedures. Its compact photocathode design fits fiber-optic bundles, making it a television camera tube under this tariff item despite its medical application.
8540.20.00Medical Endoscope Color Camera Tube
A specialized color CRT for medical endoscope cameras providing real-time color imaging inside the body for television monitoring. It is classified under 8540.20.00 as a television camera tube, despite its medical application.
8540.20.00Microchannel Plate Image Intensifier
A microchannel plate (MCP) image intensifier that amplifies electrons emitted by a photocathode through millions of microscopic channels, enabling superior night vision and low-light imaging. It is classified under tariff item 8540.20.00 as an image intensifier, a type of photo-cathode tube, because it relies on a photocathode to convert light into electrons and then multiplies those electrons for a brighter output.
8540.20.00Newvicon Camera Tube
Newvicon tubes improve on plumbicon technology with new photoconductive layers for enhanced color TV camera performance. They are classified under 8540.20.00 as other cathode-ray tubes for television cameras.
8540.20.00Photocathode Image Converter Tube
A photocathode image converter tube that transforms infrared or ultraviolet photons into visible light by using a photocathode to emit electrons, which are then accelerated and converted to a visible image on a phosphor screen. It falls under tariff item 8540.20.00 because it is explicitly an image converter, a type of photo-cathode tube, used for spectrum conversion in scientific and military applications.
8540.20.00Photomultiplier Cathode-Ray Tube
A photomultiplier cathode-ray tube functions as a television camera tube in low-light scientific and military imaging systems. It amplifies photon signals via electron multiplication, fitting the definition of a photocathode tube under this tariff item.
8540.20.00Photomultiplier Tube PMT
A photomultiplier tube (PMT) that detects low-level light by using a photocathode to convert photons into electrons, which are then multiplied through a series of dynodes for highly sensitive signal detection. It is classified under tariff item 8540.20.00 as an 'other photo-cathode tube' because its operation depends on photoemission from a photocathode, making it essential for scintillation counters and spectroscopy.
8540.20.00Plumbicon Color Television Camera Tube
The Plumbicon is a specialized color cathode-ray tube used in professional broadcast television cameras for capturing high-quality color video images. It features a photocathode that converts light into electrical signals, classifying it under 8540.20.00.
8540.20.00Plumbicon Television Camera Tube
A Plumbicon television camera tube is a specialized cathode-ray tube used in professional broadcast cameras for superior image quality and low-light performance. It operates as a photocathode tube converting light into electrical signals, squarely under this tariff item.
8540.20.00Professional ENG Color Camera Tube
Used in Electronic News Gathering (ENG) cameras, this color CRT provides portable high-quality color imaging for field broadcast television. It is classified under 8540.20.00 as a color television camera tube.
8540.20.00Radiation-Hardened Camera Tube
A radiation-hardened camera tube with a photocathode designed to withstand total radiation doses exceeding 50 kGy without performance degradation, for use in space and satellite television cameras. It falls under tariff item 8540.20.00 as a television camera tube, even though complete radiation-hardened cameras are classified under subheading 8525.82, because this is a standalone tube.
8540.20.00Return Beam Vidicon RBV Tube
A Return Beam Vidicon (RBV) tube is a specialized CRT used in satellite and aerial television cameras for high-resolution remote sensing imagery. The electron beam returns to scan the target for enhanced signal, classifying it as a television camera tube under this tariff item.
8540.20.00Return Beam Vidicon Tube
Return beam vidicon (RBV) tubes feature scanned electron beam return for high-resolution monochrome imaging in early satellite and aerial cameras. They fall under 8540.20.00 as other photocathode cathode-ray tubes.
8540.20.00S-20 Photocathode Spectral Response Tube
An S-20 spectral response photocathode tube optimized for extended red and UV-visible light detection, commonly used in photomultipliers and image converters for analytical instruments. It is classified under tariff item 8540.20.00 as a photo-cathode tube because the S-20 photocathode determines its spectral sensitivity, and it is used in applications like spectroscopy and low-light detection.
8540.20.00Secondary Emission Multiplier Tube
These photocathode tubes amplify electron signals through secondary emission for high-gain television camera applications. They are classified under 8540.20.00 as other cathode-ray tubes designed for image conversion.
8540.20.00Silicon Intensifier Target Camera Tube
SIT tubes use silicon targets with electron beam intensification for extremely low-light television camera applications like astronomy. They are classified under 8540.20.00 as other cathode-ray television camera tubes with photocathode technology.
8540.20.00Studio Broadcast Camera CRT
A studio broadcast camera CRT is a high-end cathode-ray tube designed for professional studio television cameras, providing broadcast-quality pickup tubes with extended dynamic range. Its low-lag photocathode is suited for live production, fitting this tariff item.
8540.20.00Studio Color Pickup Tube
A color pickup tube for television studio cameras, featuring RGB phosphors and magnetic deflection for precise color video signal generation. It is classified under 8540.20.00 as a color cathode-ray television camera tube.
8540.20.00Vidicon Camera Tube
A Vidicon camera tube is a photoconductive cathode-ray tube historically used in closed-circuit TV and early video cameras for reliable imaging in security systems. It features a photocathode layer scanned by an electron beam, qualifying under this tariff item.
8540.20.00Vintage Color TV Camera Lead Oxide Tube
A classic lead oxide target color tube for legacy television cameras, prized by restorers for authentic period color reproduction. It falls under 8540.20.00 as a historical color camera CRT.