Talk:Vector monitor
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Uhh, the source of the 'copyright violation' is listing Wikipedia as a source for the text. --Darksun 02:42, 22 June 2007 (UTC)
- Yes you're right. Might need my eyes testing. Kevin 02:49, 22 June 2007 (UTC)
- I copied it from that article, should of did something else I guess. From the page listed as the source: "This article is licensed under the GNU Free Documentation License. It uses material from Wikipedia Encyclopedia article "Cathode Ray Tube"" --Andrew Hampe Talk 02:51, 22 June 2007 (UTC)
- So in effect it is copied from Cathode Ray Tube. Maybe it would be better merged with that article. Kevin 02:55, 22 June 2007 (UTC)
- Uh, vector monitor I think could be a separate article from Cathode Ray Tube. --Andrew Hampe Talk 03:03, 22 June 2007 (UTC)
- So in effect it is copied from Cathode Ray Tube. Maybe it would be better merged with that article. Kevin 02:55, 22 June 2007 (UTC)
Merge to vector_graphics ?
editThe content of this article, fascinating as it is (I'm old enough to remember BattleZone !), seems to be present on the Vector_graphics page - perhaps the two should be merged and the page turned into a redirect instead ? CultureDrone 09:03, 3 July 2007 (UTC)
- Yes, I agree it should be merged. Also, calligraphic is a redirect to calligraphy, being its adjective; however, in early computing terms, the word calligraphic was used as a noun to mean a vector monitor.--ML5 12:36, 15 November 2007 (UTC)
- I disagree. Is it really a graphics item or is it a monitor made of hardware? Looking at the hardware in question and then at the topic pages, it fits more along the lines of a hardware device when viewed as a display system. Most vector graphics are displayed via software on a non-vector display system. I am working with vector displays using CRTs and could help expand this article from a technical standpoint. I am currently working to modify a magnetic deflection vector based display to increase its writing speed so that it is compatible with images having more elements than many of the older applications such as Asteroids and older HUDs. The driver is that the CRT phosphor has only a limited persistence yet many objects have to be drawn before the first ones begins to dim out. This is weighed against the difficulty of driving the inductance of the deflection coils. Modern CRTs have enough beam current capability to handle higher writing speeds. The only original material I have at this time is derived from measurements but the MIT Radiation Lab series, volume 22 (here - http://208.190.133.201/lit/mitser/V22.PDF), is copyright expired and has a wealth of dated but valid engineering information about deflection, focusing, and brilliance. Material on this topic is scarce, but among other topics, the amplifiers could be discussed pointing out the differences from conventional amplifiers. The characteristics of the deflection yokes should also be discussed. I have three of those electrostatic H/P displays BTW. They are excellent and fast. Unfortunately electrostatic large size CRTs are not generally available and the (rather small) vector CRT display industry finds itself having to use electromagnetic deflection or face extreme cost issues (because custom amplifiers are cheaper than custom CRTs). My point is that vector based CRT displays are relevant, technical, and interesting enough to keep their own topic. If the topic has to be merged, it ought to be a subsection of the hardware CRT monitor topic and not the software-heavy vector graphics topic.Opcom (talk) 17:31, 16 June 2010 (UTC)
H/P large screen vector monitor section
editRewrote the erroneous H/P large screen electrostatically deflected vector monitor section and added references.
also noticed that the statement "Tektronix made color oscilloscopes for a few years using penetration CRTs, but they apparently weren't in great demand." [citation needed] seems hard to find evidence for. any TEK retired marketers out there? CRT Hobbyist (talk) 22:58, 16 September 2019 (UTC)
Tektronix special phosphor
editI'm not sure that mention is correct. Although their phosphors may have been long persistence ones, the image was stored when the CRT was written with the beam at a higher power, which excited the phosphors beyond a threshold that allowed the "flood gun" to keep them in that state while the gun was active. Elements such as crosshairs were drawn at a power below that, which didn't break the excitement threshold, but that's all things I gathered from second, at best, sources. This is why vectors that are stored are written in bright flashes.