Ive been looking on ebay at a 2200 ansi lumen projector which i believe is using a standard 150w osram HQI doble ended which is evedenced by this lamp seller [url=Ive been looking on ebay at a 2200 ansi lumen projector which i believe is using a standard 150w osram HQI doble ended which is evedenced by this lamp seller http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...A:IT&ih=012 [/url]
The projector is by svic s720h
Heres one of several such projectors currently on ebay.. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...A:IT&ih=017
So is there ansi lumen spec credible ?

and here is a quote from a german website on the subject.. Svic the whole series is absolutely wrong and helligkeits kontrastangaben Edit, even if the retailer or the manufacturer specifies, the defrauded customers
bitte überprüfen sie meine aussage; diese helligkeitswerte sind mit dieser technologie nicht möglich! Please check my statement; These are helligkeitswerte with this technology is not possible!
bsp. Bsp. die besten 1 lcd beamer erreichten mit 575 watt 300 ansi lumen The best one lcd beamer reached 575 watt 300 ansi lumen
diese hier hab eine 150 watt hqi lampe, die helligkeit kann also(erfahrungswerte) max 150 ansi lumen ergeben, was schon sehr hoch gegriffen ist. This here got a 150 watt lamp hqi, the brightness can also (erfahrungswerte) max 150 ansi lumen, which is very ambitious.
gruß lw Gruß lw
Addendum the projector uses a single 7" lcd

just noticed that the 7" lcd is a polysilicone which may be more transmissive

no. All projector on the market that say they have 2200 ansi have more like 220 ansi lumens. they just pretty much that stuff up

[quote name='mdmfootball' date='Oct 21 2007, 08:11 PM' post='257697']
no. All projector on the market that say they have 2200 ansi have more like 220 ansi lumens. they just pretty much that stuff up
[/quotI may well buy one of these soon, I saw one go through ebay @ £245

Just to add to some of the previous comments. I bought a S720 HDC from Hixley Electronics. http://hixley.com/svic.asp?ProductID=1 There units are upgraded compared to the EBAY jobs and used a 220, 250 and there working on using 400w osram bulbs. They have to be specially adapted as an upgrade just done by swapping the bulb will cause the LCD panel to be burnt out! http://hixley.com/svic.asp?ProductID=1

Take care guys, but keep me updated on any thoughts.

Also to say they are more like 220 lumens is very harsh. I would say they are around the 1800 MARK. The Hixley electronic SVIC models are about 2000 lumens as they are upgraded. I've compared it to an epson one i have and the SVIC S270H and S720 HDC model is excellent. I have to also say although the quality is ok and nothing special. the content of these models is excellent. To have all the inputs they do for the price you gotta weigh it up in all honesty!

Have you performed any lux measurements.

If either of your projectors is outputting 2000 lumens on a screen any smaller than...oh, let's say 200-300 inches then you're gonna have to wear sunglasses to watch it. Unless, of course, you use a gray screen to absorb all thos extra lumens.

Visual estimates of lumens are notoriousely subjective. that's why there are plenty here who are happy with a 100 lumen projector, and others who are unhappy with a 300 lumens commercial projector. Best way to determine the truth is to simply measure it.

I have trouble seeing how a 15,000 lumen lamp can get 2200 lumens out of the triplet. That's about 15% of the total light. Most lcds can only transmit 7% of the light incident on them. Accounting for losses in the captured light and lenses the LCD must have an exceptionally high transmissivity to capture that much light. If that were the case, then the contrast should be close to nil.

There is the possibility of some type of light recycle going on in the projector. We're putzing around with that here using DBEF film. But I haven't heard of anyone actually getting it to work, yet.