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why are lamps so expensive?

Discussion in 'Projectors, Screens & Video Processors' started by Martin68, Jun 6, 2005.

  1. Martin68

    Martin68
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    I am trying to find out the answer to this for some time now:
    WHY ARE THE PRICES OF LAMPS FOR LCD/DLP PROJECTORS SO HIGH?
    I was asked recently to replace a lamp in a friends lcd projector and when i told him that the lamp costs two thirds of the price of a new simular projector he nearly fell off the chair! (the lamp was £370 and you can buy a simular new projector for £450 that is 1800lumins 600x800)
    I want to know how the high price of a lamp can be justified, when you compare all the parts that make up a projector, surely the lamp, being just a molded piece of gas filled glass should compare with i.e tires on a car, if tires on a car cost nearly as much as a new car, ide love to see how people would react about that!
    the odd thing is that i havnt yet seen any messages from others questioning this unrealistic high lamp cost, and then to find that its only guaranteed for 90 days, i think we are being ripped off by the manufacturers!

    metal halide lamps are also used in street lights (ok i know they are a different type but they do use the same technology) and ive seen street lamps for as little as £25 as a standard price
    please anyone care to comment and if you know why projector lamps are so high please let me know.

    Martin
     
  2. Goof

    Goof
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    Been discussed before - people will say it's a specialist production with few unit numbers but really it's just a closed shop and they're fleecing us blind, no two ways about it :(
     
  3. Martin68

    Martin68
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    but if its WAS a specialist area, it seems to be no longer the case because projectors are now becoming as common place as for the general public, i myself own an lcd rear projection tv!
    the price of consumer electronics has come down so much now, you can buy a dvd player for as little as £25, so is it not time that lamps come down too

    ide say street lamps are more of a specialist thing, and you can get the bulbs for only £25

    Your right about them fleecing us blind!
     
  4. Gary Lightfoot

    Gary Lightfoot
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    Almost every new projector has a bespoke lamp and with limited runs worldwide I can see how that can make them expensive (how expensive I couldn't say). You'd think that a few manufacturers would try and design their pjs around an existing lamp (even one from one of their own pjs) so that there is no cost involved in designing the lamp and having it made. If many of them did that, like in all things (such as the costs of PCs), the price would fall as the production numbers rose.

    I see your point about street lamps, but if you consider how many Sodium street lamps there are, you'd probably find there are more of those in London than there are projector lamps worldwide. Street lamps are also made to run cheaply (hence warm up time is quite long) and not be colour accurate (hence why colours look wrong under sodium light).


    Mind you, I have a 6400k fluorescent lightbulb (only 11watts though and it cost me £1), so I wonder why that technology can't be used to produce 200w lamps? Size maybe? Do they get bigger as they get brighter?

    Gary.
     
  5. Nick_UK

    Nick_UK
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    It's not just the brightness of the lamps, it's the colour spectrum that's important. If the light wasn't pure white, some of the colours would appear washed out.
     
  6. Gary Lightfoot

    Gary Lightfoot
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    Even the lamps in our projectors aren't colour accurate, they're often pushing blue/green, and why ISF calibration is often needed, but I guess these lamps are the nearest to white we're going to get (though as I mentioned before, the flu' bulb I have isn't far off either - I'll have to measure it's colour accuracy and colour temp just to see).

    Gary.
     
  7. MikeD

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    I worked for a company that used ultra violet curing inks, the UV tubes used in the process cost over £100 each and were inefficiently manufactured by hand, investment in automating the process was deemed non viable due to the small demand.
    I've always thought as Gary suggested in his earlier post that sooner or later one of the big projector manufacturers might standardise on two or three lamps for their range and stick with them for as long as they can and design their projectors around them.
    I'm sure that sub £100 bulb replacement costs would convert many more people to the technology and as bulb runs would increase so probably would their reliability due to the inevitable improvements in manufacturing efficiencies.
    So Infocus, Sony, Optoma, Pana and the rest how about it?
     
  8. dekoded

    dekoded
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    I agree with all that's been said, I suppose we will just have to wait for LED PJ's to become good enough!

    Found specs on one of the new mini PJ's mentioned on a previous thread:


    you may need to right click and 'save target as'
     

    Attached Files:

  9. theritz

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    Martin68,


    Your thread (Click Here) in March last on the very same subject was answered......

    Use the search button, and find This Thread and lots more besides.

    S.
     
  10. Ekko Star

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    Limited runs, cost of manufacture it's all been said before.

    Everytime a manufacturer launches a new PJ it is usually designed from the ground up. If it was the same lamp all the time argument you would not be seeing the rate of improvement witnessed in PJ technology in the last 2 years. You can't have it both ways unfortunately.

    Do the lamps make a difference ? Take the HS20 lamp in a HS10 and see the improvement that brought to a HS10 for example.

    Lamps, lenses and prism blocks are all designed in conjunction with each other to maximise the end result.
     
  11. AMc

    AMc
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    I doesn't help me much (check the price of a new bulb for my Bogart!) but Epson do use the same bulbs in several projectors and have much lower costs as a result.

    I worried a lot about this before I bought my projector but having seen the speed at which I rack up hours providing the the bulb lasts to it's estimated 2000 hour point the PJ will be several years old before I need to worry about it at which point specs will have improved and prices dropped to the point where it won't be worth doing
     
  12. ZippyCat

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    Unfortunately projectors are similar to printers with regard to consumable items. Printer manufacturers often make little money on the initial purchase, but do on the consumables. It’s a way of attracting people to their product with low purchase costs. If the original purchase cost is higher with lower running costs, the likelihood is more potential consumers may be deterred. People find it difficult to look at their long-term, remember tomorrow is another day.

    However, they do take the P!$$
     

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