Your browser does not fully support modern features. Please upgrade for a smoother experience.
Submitted Successfully!
Thank you for your contribution! You can also upload a video entry or images related to this topic. For video creation, please contact our Academic Video Service.
Version Summary Created by Modification Content Size Created at Operation
1 handwiki Dean Liu -- 5550 2022-11-28 01:47:08

Video Upload Options

We provide professional Academic Video Service to translate complex research into visually appealing presentations. Would you like to try it?
No, upload directly Yes
Cite
If you have any further questions, please contact Encyclopedia Editorial Office.
HandWiki. Cathode Ray Tube. Encyclopedia. Available online: https://encyclopedia.pub/entry/37859 (accessed on 14 September 2026).
HandWiki. Cathode Ray Tube. Encyclopedia. Available at: https://encyclopedia.pub/entry/37859. Accessed September 14, 2026.
HandWiki. "Cathode Ray Tube" Encyclopedia, https://encyclopedia.pub/entry/37859 (accessed September 14, 2026).
HandWiki. (2022, December 02). Cathode Ray Tube. In Encyclopedia. https://encyclopedia.pub/entry/37859
HandWiki. "Cathode Ray Tube." Encyclopedia. Web. 02 December, 2022.
Cathode Ray Tube
Edit
The content is sourced from: https://handwiki.org/wiki/Engineering:Cathode_ray_tube

The cathode ray tube (CRT) is a vacuum tube that contains one or more electron guns and a phosphorescent screen, and is used to display images. It modulates, accelerates, and deflects electron beam(s) onto the screen to create the images. The images may represent electrical waveforms (oscilloscope), pictures (television, computer monitor), radar targets, or other phenomena. CRTs have also been used as memory devices, in which case the visible light emitted from the fluorescent material (if any) is not intended to have significant meaning to a visual observer (though the visible pattern on the tube face may cryptically represent the stored data). In television sets and computer monitors, the entire front area of the tube is scanned repetitively and systematically in a fixed pattern called a raster. An image is produced by controlling the intensity of each of the three electron beams, one for each additive primary color (red, green, and blue) with a video signal as a reference. In all modern CRT monitors and televisions, the beams are bent by magnetic deflection, a varying magnetic field generated by coils and driven by electronic circuits around the neck of the tube, although electrostatic deflection is commonly used in oscilloscopes, a type of electronic test instrument. A CRT is constructed from a glass envelope which is large, deep (i.e., long from front screen face to rear end), fairly heavy, and relatively fragile. The interior of a CRT is evacuated to approximately 0.01 pascals (9.9×10−8 atm) to 133 nanopascals (1.31×10−12 atm), evacuation being necessary to facilitate the free flight of electrons from the gun(s) to the tube's face. The fact that it is evacuated makes handling an intact CRT potentially dangerous due to the risk of breaking the tube and causing a violent implosion that can hurl shards of glass at great velocity. As a matter of safety, the face is typically made of thick lead glass so as to be highly shatter-resistant and to block most X-ray emissions, particularly if the CRT is used in a consumer product. Since the late 2000s, CRTs have been largely superseded by newer "flat panel" display technologies such as LCD, plasma display, and especially OLED displays, which in the case of LCD and OLED displays have lower manufacturing costs and power consumption, as well as significantly less weight and bulk. Flat panel displays can also be made in very large sizes; whereas 38 to 40 in (97 to 102 cm) was about the largest size of a CRT television, flat panels are available in 60 in (150 cm) and larger sizes.

electronic test electronic circuits varying magnetic field

References

  1. Ferdinand Braun (1897) "Ueber ein Verfahren zur Demonstration und zum Studium des zeitlichen Verlaufs variabler Ströme" (On a process for the display and study of the course in time of variable currents), Annalen der Physik und Chemie, 3rd series, 60: 552–559. http://babel.hathitrust.org/cgi/pt?id=wu.89048352892;view=1up;seq=568
  2. "Cathode Ray Tube". Medical Discoveries. Advameg, Inc.. 2007. http://www.discoveriesinmedicine.com/Bar-Cod/Cathode-Ray-Tube-CRT.html. Retrieved 27 April 2008. 
  3. "Cathode Ray Tube and its Applications". International Journal of Innovative Research in Technology 1. 
  4. Kenjiro Takayanagi: The Father of Japanese Television, NHK (Japan Broadcasting Corporation), 2002, retrieved 2009-05-23. https://web.archive.org/web/20160101180643/http://www.nhk.or.jp/strl/aboutstrl/evolution-of-tv-en/p05/
  5. Forrester, Chris (28 August 2011). "High Above: The untold story of Astra, Europe's leading satellite company". Springer Science & Business Media. https://books.google.co.uk/books?id=wQhlFaxDwrsC&pg=PA220. 
  6. Albert Abramson, Zworykin, Pioneer of Television, University of Illinois Press, 1995, p. 231. ISBN:0-252-02104-5.
  7. Popular Photography, November 1990, page 5 https://books.google.co.uk/books?id=DJsbJq2_djkC&pg=PA5
  8. Albert Abramson, Zworykin, Pioneer of Television, University of Illinois Press, 1995, p. 84. ISBN:0-252-02104-5.
  9. "RCA Surrenders Rights to Four Trade-Marks," Radio Age, October 1950, p. 21.
  10. Telefunken, Early Electronic TV Gallery, Early Television Foundation. http://www.earlytelevision.org/telefunken.html
  11. 1934–35 Telefunken, Television History: The First 75 Years. http://www.tvhistory.tv/1934-35-Telefunken-FEIII.JPG
  12. "Saying Goodbye To Old Technology — And A Legendary NYC Repair Shop". https://www.npr.org/sections/alltechconsidered/2016/08/15/489629491/saying-goodbye-to-old-technology-and-a-legendary-nyc-repair-shop. 
  13. Doebelin, Ernest (2003). Measurement Systems. McGraw Hill Professional. p. 972. ISBN 978-0-07-292201-1. https://books.google.com/?id=q1mOopLHnTEC&pg=PA972. 
  14. Shionoya, Shigeo (1999). Phosphor handbook. CRC Press. p. 499. ISBN 978-0-8493-7560-6. https://books.google.com/?id=lWlcJEDukRIC&pg=PA499. 
  15. Williams, Jim (1991). Analog circuit design: art, science, and personalities. Newnes. pp. 115–116. ISBN 978-0-7506-9640-1. https://books.google.com/?id=CFoEAP2lwLEC&pg=PA115. 
  16. Yen, William M.; Shionoya, Shigeo; Yamamoto, Hajime (2006). Practical Applications of Phosphors. CRC Press. p. 211. ISBN 978-1-4200-4369-3. https://books.google.com/?id=cKMSf0iRVSgC&pg=PA211. 
  17. Bakshi, U.A.; Godse, A.P. (2008). Electronic Devices And Circuits. Technical Publications. p. 38. ISBN 978-81-8431-332-1. https://books.google.com/?id=uJaQML8-MggC&pg=PA38. 
  18. Hickman, Ian (2001). Oscilloscopes: how to use them, how they work. Newnes. p. 47. ISBN 978-0-7506-4757-1. https://books.google.com/?id=O2oj04vbQqgC&pg=PA47. 
  19. The Great Soviet Encyclopedia, 3rd Edition (1970–1979)
  20. "How CRT and LCD monitors work". bit-tech.net. http://www.bit-tech.net/hardware/2006/03/20/how_crt_and_lcd_monitors_work/1. Retrieved 4 October 2009. 
  21. "The Shadow Mask and Aperture Grill". PC Guide. http://www.pcguide.com/ref/crt/crtMask-c.html. 
  22. Norton, Thomas J. (March 2005). "Picture This". UltimateAVmag.com. Archived from the original on 26 November 2009. https://web.archive.org/web/20091126054428/http://www.ultimateavmag.com/howto/305picture/. 
  23. "Magnetization and Degaussing". http://www.pcguide.com/ref/crt/crtGauss-c.html. Retrieved 4 October 2009. 
  24. Van Burnham (2001). Supercade: A Visual History of the Videogame Age, 1971–1984. MIT Press. ISBN 0-262-52420-1. 
  25. "Moiré Interference Patterns". DisplayMate Technologies website. http://www.displaymate.com/moire.html. Retrieved 4 October 2006. 
  26. "What causes the faint horizontal lines on my monitor?". HowStuffWorks. http://computer.howstuffworks.com/question406.htm. Retrieved 4 October 2009. 
  27. Robin, Michael (1 January 2005). "Gamma correction". BroadcastEngineering. Archived from the original on 31 May 2009. https://web.archive.org/web/20090531130845/http://broadcastengineering.com/newsrooms/broadcasting_gamma_correction/. Retrieved 4 October 2009. 
  28. "Tuning-Eye Tubes". vacuumtube.com. Archived from the original on 23 April 2009. https://web.archive.org/web/20090423055711/http://www.vacuumtube.com/eyetubes.htm. Retrieved 1 December 2009. 
  29. "CATHODE RAY APPARATUS". http://www.google.com/patents?vid=2735956. Retrieved 4 October 2009. 
  30. "INPUT". http://www.google.com/patents?vid=2824250. Retrieved 4 October 2009. 
  31. "IEE Nimo CRT 10-gun readout tube datasheet" (PDF). tube-tester.com. http://www.tube-tester.com/sites/nixie/dat_arch/BA0000-P31.pdf. Retrieved 1 December 2009. 
  32. "Futaba TL-3508XA 'Jumbotron' Display". The Vintage Technology Association. 11 March 2010. http://www.decadecounter.com/vta/articleview.php?item=947. Retrieved 2014-12-19. 
  33. "Vacuum light sources — High speed stroboscopic light sources data sheet" (PDF). Ferranti, Ltd.. August 1958. http://www.mif.pg.gda.pl/homepages/frank/sheets/074/c/CL60.pdf. Retrieved 7 May 2017. 
  34. "CK1366 CK1367 Printer-type cathode ray tube data sheet" (PDF). Raytheon Company. 1 November 1960. http://www.mif.pg.gda.pl/homepages/frank/sheets/138/c/CK1366.pdf. Retrieved 29 July 2017. 
  35. "CK1368 CK1369 Printer-type cathode ray tube data sheet" (PDF). Raytheon Company. 1 November 1960. http://www.mif.pg.gda.pl/homepages/frank/sheets/138/c/CK1368.pdf. Retrieved 29 July 2017. 
  36. Beeteson, John Stuart (21 November 1998). "US Patent 6246165 – Magnetic channel cathode". Archived from the original on 18 May 2013. https://web.archive.org/web/20130518040015/http://www.patentstorm.us/patents/6246165/description.html. 
  37. "US Patent 5905336 – Method of manufacturing a glass substrate coated with a metal oxide". 18 May 1990. http://www.freepatentsonline.com/5905336.html. 
  38. Van Gorkom, G.G.P. (1996). "Introduction to Zeus displays". Philips Journal of Research 50 (3–4): 269. doi:10.1016/S0165-5817(97)84675-X.  https://dx.doi.org/10.1016%2FS0165-5817%2897%2984675-X
  39. Lambert, N.; Montie, E.A.; Baller, T.S.; Van Gorkom, G.G.P.; Hendriks, B.H.W.; Trompenaars, P.H.F.; De Zwart, S.T. (1996). "Transport and extraction in Zeus displays". Philips Journal of Research 50 (3–4): 295. doi:10.1016/S0165-5817(97)84677-3.  https://dx.doi.org/10.1016%2FS0165-5817%2897%2984677-3
  40. Doyle, T.; Van Asma, C.; McCormack, J.; De Greef, D.; Haighton, V.; Heijnen, P.; Looymans, M.; Van Velzen, J. (1996). "The application and system aspects of the Zeus display". Philips Journal of Research 50 (3–4): 501. doi:10.1016/S0165-5817(97)84688-8.  https://dx.doi.org/10.1016%2FS0165-5817%2897%2984688-8
  41. Wong, May (22 October 2006). "Flat Panels Drive Old TVs From Market". AP via USA Today. https://www.usatoday.com/tech/products/gear/2006-10-22-crt-demise_x.htm. Retrieved 8 October 2006. 
  42. "The Standard TV". Veritas et Visus. http://www.veritasetvisus.com/LCDTVA/LCDTVA-8,%20Spring-Summer%202009.pdf. Retrieved 12 June 2008. 
  43. "End of an era". The San Diego Union-Tribune. 20 January 2006. http://www.signonsandiego.com/uniontrib/20060120/news_1n20sony.html. Retrieved 12 June 2008. 
  44. "Matsushita says good-bye to CRTs". engadgetHD. 1 December 2005. Archived from the original on 14 January 2009. https://web.archive.org/web/20090114110526/http://www.engadgethd.com/2005/12/01/matsushita-says-good-bye-to-crts/. Retrieved 12 June 2008. 
  45. "SlimFit HDTV". Samsung. Archived from the original on 10 January 2008. https://web.archive.org/web/20080110164950/http://www.samsung.com/us/consumer/subtype/subtype.do?group=televisions&type=televisions&subtype=slimfithdtv. Retrieved 12 June 2008. 
  46. "The future is flat as Dixons withdraws sale of 'big box' televisions". London Evening Standard. 26 November 2006. http://www.thisislondon.co.uk/news/article-23376023-details/The+future+is+flat+as+Dixons+withdraws+sale+of+'big+box'+televisions/article.do. Retrieved 3 December 2006. 
  47. "SUBCHAPTER J—RADIOLOGICAL HEALTH (21CFR1020.10)". U.S. Food and Drug Administration. 1 April 2006. http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=1020.10. Retrieved 13 August 2007. 
  48. "Toxic TVs". Electronics TakeBack Coalition. Archived from the original on 27 February 2009. https://web.archive.org/web/20090227041627/http://takebackmytv.com/pages/toxic_tvs. Retrieved 13 April 2010. 
  49. "Occupational Risks Associated with Electronics Demanufacturing and CRT Glass Processing Operations and the Impact of Mitigation Activities on Employee Safety and Health" (PDF). Cascade Asset Management, LLC. Basel Action Network. Archived from the original on 26 July 2011. https://web.archive.org/web/20110726012352/http://e-stewards.org/wp-content/uploads/2010/03/OccupationalRisksCRTGlassProcessing1.pdf. Retrieved 20 January 2011. 
  50. "Cadmium". American Elements. http://www.americanelements.com/cdm.html. Retrieved 13 April 2010. 
  51. "CHARACTERIZATION OF LEAD LEACHABILITY FROM CATHODE RAY TUBES USING THE TOXICITY CHARACTERISTIC LEACHING PROCEDURE (TCLP)". Archived from the original on 22 February 2014. https://web.archive.org/web/20140222012228/http://www.hinkleycenter.com/publications/lead_leachability_99-5.pdf. Retrieved 4 October 2009. 
  52. "Final Rules on Cathode Ray Tubes and Discarded Mercury-Containing Equipment". http://www.epa.gov/osw/hazard/recycling/electron/index.htm. Retrieved 4 October 2009. 
  53. California, State of. "Covered Electronic Waste Payment System". https://www.calrecycle.ca.gov/electronics/cew. 
  54. "WEEE and CRT Processing". http://www.awm-group.com/recycling/WEEEandCRTProcessing.htm. Retrieved 4 October 2009. 
  55. "CRT Monitor Flickering?". http://www.pcmech.com/article/crt-monitor-flickering/. Retrieved 4 October 2009. 
  56. Netravali, Arun N.; Haskell, Barry G. (1995). Digital pictures: representation, compression, and standards. Plenum Publishing Corporation. p. 100. ISBN 978-0-306-44917-8. https://books.google.com/?id=-TXYfZrCBuQC&pg=PA100. 
  57. "The monitor is producing a high-pitched whine". http://www.pcguide.com/ts/x/comp/crt/failWhine-c.html. Retrieved 4 October 2009. 
  58. Bali, S.P. (1994). Colour Television: Theory and Practice. Tata McGraw–Hill. p. 129. ISBN 978-0-07-460024-5. https://books.google.com/?id=53nnX4fnnNIC&pg=PA129. 
  59. Color Television Servicing Manual, Vol-1, by M.D. Aggarwala, 1985, Television for you, Delhi, India
  60. "Electromagnetic Radiation from Video Display Units: An Eavesdropping Risk?". http://jya.com/emr.pdf. Retrieved 4 October 2009. 
  61. Kuhn, M.G. (2004). "Electromagnetic Eavesdropping Risks of Flat-Panel Displays". 4th Workshop on Privacy Enhancing Technologies: 23–25. http://www.cl.cam.ac.uk/~mgk25/pet2004-fpd.pdf. 
  62. WEEE: CRT and Monitor Recycling. Executiveblueprints.com (2 August 2009). Retrieved on 26 August 2013. http://www.executiveblueprints.com/aboutweee/WEEECRTandMonitor.htm
  63. Morgan, Russell (21 August 2006). "Tips and Tricks for Recycling Old Computers". SmartBiz. http://www.smartbiz.com/article/articleprint/1525/-1/58. Retrieved 17 March 2009. 
  64. Weitzman, David. The CRT Dilemma: Cathode Ray Tube Or Cruel Rude Trash. RRT Design & Construction http://www.nyfederation.org/PDF/14_CRTDilemma.pdf
More
©Text is available under the terms and conditions of the Creative Commons-Attribution ShareAlike (CC BY-SA) license; additional terms may apply. By using this site, you agree to the Terms and Conditions and Privacy Policy.
Upload a video for this entry
Information
Subjects: Engineering, Electrical & Electronic
Contributor MDPI registered users' name will be linked to their SciProfiles pages. To register with us, please refer to https://encyclopedia.pub/register :
HandWiki
View Times: 6.8K
Entry Collection: HandWiki
Revision: 1 time (View History)
Update Date: 02 Dec 2022
Table of Contents
    Notice
    You are not a member of the advisory board for this topic. If you want to update advisory board member profile, please contact office@encyclopedia.pub.
    OK
    Confirm
    Only members of the Encyclopedia advisory board for this topic are allowed to note entries. Would you like to become an advisory board member of the Encyclopedia?
    Yes
    No
    ${ textCharacter }/${ maxCharacter }
    Submit
    Cancel
    There is no comment~
    ${ textCharacter }/${ maxCharacter }
    Submit
    Cancel
    ${ selectedItem.replyTextCharacter }/${ selectedItem.replyMaxCharacter }
    Submit
    Cancel
    Confirm
    Are you sure to Delete?
    Yes No
    Academic Video Service
    Feedback