Talk:Lamp (electrical component)

message: The recent move of this page from lamp to light bulb had created a bit of a problem. While "lamp" is indeed a technical name for a "light bulb", the former is a broader term than the latter. "Lamps" in the technical sense include incandescent, fluorescent, gas discharge, and LED modules. Only the first of these is really correctly described as a "light bulb", and there is already an article on that: Incandescent light bulb. I have therefore moved the article to Lamp (electrical component), which I think better describes the contents. I have adjusted the intro to suit the new name and role, and to reduce duplication with Incandescent light bulb.--Srleffler 06:26, 17 April 2006 (UTC)
thread_title: Move

message: Halogen lamps do not produce a colour temperature anywhere near that of sunlight. Halogens are typ 3000K, daylight is over twice that. The non-linear response of the eye can fool viewers in this respect.
The famous indandescent lamp of the 1800s was the carbon lamp, NOT the metal filament lamp we know today. Today's lamp didnt show up until much later. (there were also various other indandescent lamps long ago)
High halogen capsule temp is not caused by filament temp, but rather by small surface area to power ratio.
"which is sealed behind an additional layer of glass."
sometimes, sometimes not. Lots of halogen lamps & fittings lack this safety guard.
Tabby 17:16, 9 May 2007 (UTC)
replies: text: I dont know the actual temperature of operation of the glass envelope, bit I doubt the glass itself is at that temperature, at which the glass itself would be quite incandescent. 200C is probably much too low, as well. Something in the range of 500C to 1000C for the glass sounds at least more plausible.  Is this what the question is asking? Jornadigan (talk) 05:14, 14 December 2015 (UTC)
replies: text: You're replying to a comment that is seven years old. The question was settled long ago, by reverting the edit in question. The bulb operates at 200°C (at the quartz surface). --Srleffler (talk) 06:25, 14 December 2015 (UTC)

text: I have just now found a reference to the making of high-temperature fused-quartz glass in wikipedia: https://en.wikipedia.org/wiki/Fused_quartz where it states the glass is melted and refined near 2000C. So that cannot be the temperature of the glass envelope. 2000C (2273K) could plausibly be the temperature of a filament, a somewhat "cool" one at that spectral temperature (since filaments are close to ideal black-body radiating surfaces) Jornadigan (talk) 06:02, 14 December 2015 (UTC)

text: I have not noticed a link to a disambiguation page, where I would find a link to other technologies, such as oil lamps, which were in fact, the first true lamps.  Did I miss it? Or was the disambiguation a miss itself?  Jornadigan (talk) 05:04, 14 December 2015 (UTC)
replies: text: The dab page is at Lamp, of course. It doesn't need to be linked to from this article, since this article is more specific.--Srleffler (talk) 06:25, 14 December 2015 (UTC)
thread_title: Errors

message: Have removed several of these %age figures, since they are unrepresentative of real life lighting. I don't know where the figures came from, perhaps they represent the absolute edge of technological possibility, but they are most optimistic when describing domestic and commercial lighting.
Tabby (talk) 12:13, 24 December 2007 (UTC)
thread_title: Efficiency figures

message: maybe we should explain how lightbulbs work?  —Preceding unsigned comment added by 207.6.125.46 (talk) 09:16, 28 December 2007 (UTC)
thread_title:  How 

message: Whilst interesting, the closing sentence: "Therefore, the electric light bulb was named “American”." in the context of this section, could appear to be somewhat biased and even a little anti-American. This section tells the story (albeit extremely briefly) of the invention of the light bulb in Canada, then the sale of part of the rights to the US Patent, but I've never heard of the light bulb being called 'the American light bulb.' Would this mean I only have English light bulbs in my home, as I live and buy my bulbs in England? I think not! lol. If no-one has an objection, I will pop back in 24 hours and remove the sentence if this is ok with everyone concerned. I could be wrong of course, but maybe there's a better way to close this section; it just seems a little subjective/POV. Daniel-James 03:00, 22 March 2008 (UTC)
replies: text: Actually, most of the paragraph feels subjective and non-encyclopedic (citations needed, in particular); moreover IMHO such information doesn't really belong in this article, but should probably be added into the "Incandescent light bulb" article instead (which does already mention Woodward and Evans a bit). Jediknil (talk) 06:18, 22 March 2008 (UTC)
thread_title:  A Brief History 

message: I agree with the notion to merge to electric light; there's been no comments since February.  That article compares the different types of electric lamp, and seems to be a little more natural title than this article has. If I don't see any comments to the reverse I shall likely carry out the merge in the next few days. --Wtshymanski (talk) 02:01, 7 August 2008 (UTC)
replies: text: Lamp (electical component) is the more accurate title.  Electric lamp or simmilar may work as a title as well, but electric light not a good title for the article, as the article refers to lamps, not light. -JWGreen (talk) 03:15, 7 August 2008 (UTC)
thread_title: Redundant article