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XJ-H1700 4000 lumens, anyone open one yet?

ekeup

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So, it seems it's for sale now, searched the forums and only found details about the xj-h1600 (http://laserpointerforums.com/f39/blue-laser-diodes-sale-new-projector-3500-luminems-projector-66279.html). Based on the review of the 1600, can anyone confirm they just filled the remaining row with diodes? So it has 40 diodes instead of the 32 in the 1600?

for sale here: Casio XJ-H1700 Video Projector. LED Projector Review, Best Projector Price and Specs : XGA DLP Projector : 4000 Lumens

Or maybe new higher powered diodes :thinking:
 





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I do not believe that one has been explored. There's really only way to find out!

:evil:
 
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We should anticipate SOMETHING interesting in this 4K lumen beast. It costs 2 grand... what a hefty investment. Something like this would probably take some sort of group effort, since it is so costly.

Just like exploring space, humans on earth have to sort out the economy at home before we start going places abroad.

Examine my photograph of the specs. Results do look promising, however, you should expect a lot more research and information to come in before we crack at it.
 

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rhd

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If there are 40 diodes in it, then it's really only $50 a diode. That's no big deal - not that much more than a regular 445.
 
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Going from 3500 lumens to 4000 lumens is a 14% increase.
A 14% increase on 32 diodes would be 37, so I wouldnt think they used more powerfull diodes,

But there is a chance that they used more efficient batches on these,
Has it been confirmed that the diodes in the center are generaly better on previous models?
Mabye they used all "good" diodes on this projector.
 
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rhd

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Going from 3500 lumens to 4000 lumens is a 14% increase.
A 14% increase on 32 diodes would be 37, so I wouldnt think they used more powerfull diodes,

But there is a chance that they used more efficient batches on these,
Has it been confirmed that the diodes in the center are generaly better on previous models?
Mabye they used all "good" diodes on this projector.

This notion that KasEO is binning diodes per-projector based on models sounds just crazy to me. It has come up before.

I think a much more likely presumption is that they buy crap loads of these diodes in bulk, and run them at different currents, for difference projectors. Because they're using 24, 32, or 40 (depending on the projector), they've got a good averaging going on, and really have no need to individually test each diode beyond just making sure they work. There's know way they are "LPMing" each diode to bin them.

I'm sure that they had a massive stockpile of the Nichia diodes, and once they ran out, they started to use a newer order / newer stockpile. This also explains why the first few M140s worth of diodes apparently had no better specs than the A140s, but now we're seeing improvements. At some point in the last six months, Nichia has incremented their datasheet, and I'm presuming their newer revisions too some time to work their way into KasEO projectors.
 

sinner

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They just have more diodes , maybe slightly efficient ones but from the same family.. so if they were more powerful understanding the claim of 4000lumens its just that it has 32 of them at 7~10% more power but it is also likely to have less efficient ones in the beamer aswell... We "may" get 8/32 efficiently over 2W but how much more than 2W is a "question mark"..
So our best bet is to continue to run the M140's but at 7% more power ~1.8A and 2W is still achievable, I dont see any reason why we should spend 2+Grands on this one and get 32 of them when we can get 2X 24(M-140's) at 1.6G's.. So the practical way would be to stick to M-140's unless someone comes along on a mission and yells H1700..
 




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