Hey all, I've been searching and reading through the archives, but haven't found much on an answer to what I was thinking about, so help an inexperienced guy out!
I just ordered a new OHP, after my old cheap one took a tumble, breaking the mirror thanks to my friend's child while i wasnt watching him... 🙄 . I got a dukane 4003, uses 410W FXL bulbs.
I am taking apart my LCD monitor, Cornea - forget model #, 15". Right now I just finished extending the ribbon cable(it worked yay!) and am ready to test it on an OHP. With the heat of the halogen OHP's, I assume the stage is hot enough to destroy the lcd. If I raise the LCD off the stage a few cm and place fans to circulate air, is this enough? I was going to use an array of those side blower fans, try that first like line the 2 sides of the raised LCD with them.
Or perhaps, treat the lcd like the older lcd projector panels ( how they had the lcd sandwiched in betweeen 2 layers of glass)? I thought maybe, have another layer of glass over the stage glass and then the raised lcd with fans going.
I guess polarizer film over the stage glass could also be used in combination w/ the fans?
I have no idea how much any of these ideas could cool the panel, as I would prefer not destroying this after taking it all apart heheh!
Eventually I plan on trying to retrofit MH into my OHP or build a custom MH lighting source, but no time for it at this time, I am backed up with work! Do those bulbs run cool enough use the LCD without additional cooling?
Thanks!
I just ordered a new OHP, after my old cheap one took a tumble, breaking the mirror thanks to my friend's child while i wasnt watching him... 🙄 . I got a dukane 4003, uses 410W FXL bulbs.
I am taking apart my LCD monitor, Cornea - forget model #, 15". Right now I just finished extending the ribbon cable(it worked yay!) and am ready to test it on an OHP. With the heat of the halogen OHP's, I assume the stage is hot enough to destroy the lcd. If I raise the LCD off the stage a few cm and place fans to circulate air, is this enough? I was going to use an array of those side blower fans, try that first like line the 2 sides of the raised LCD with them.
Or perhaps, treat the lcd like the older lcd projector panels ( how they had the lcd sandwiched in betweeen 2 layers of glass)? I thought maybe, have another layer of glass over the stage glass and then the raised lcd with fans going.
I guess polarizer film over the stage glass could also be used in combination w/ the fans?
I have no idea how much any of these ideas could cool the panel, as I would prefer not destroying this after taking it all apart heheh!
Eventually I plan on trying to retrofit MH into my OHP or build a custom MH lighting source, but no time for it at this time, I am backed up with work! Do those bulbs run cool enough use the LCD without additional cooling?
Thanks!
50joe, Well all I can say is with any of My panels that I have I use them all On a 410 fxl OHP and they get warm not hot and they only have 1 fan keeping them cool so I would suggest raising the panel slightly off the glass and put as many fans of that thing as you can( better safe then sorry) and i think you should be fine.
MH runs hot, but not as hot as halogen, I've got a problem with panel cooling as i've just built my first stripped monitor rig. the lcd is getting way to hot and streaky on a 400w MH setup. I've got 80mm case fans cooling the the ohp box but the panel gives an airtight seal (if you know what i mean). Going to try raising the panel slightly for air flow
and spec an extra fan placement. I reckon a glass sandwich may get just as hot, any one got experience of this method?

this might be a dumb remark, but do you also have an air OUTLET? Some fans blowing IN but also one or some blowing OUT?
I just took my cornea apart today and
I need your help in extending the cable. it wasa choer getting it a0part. i didnt know i needed to extend the cable, but it seems like i will. help!
I need your help in extending the cable. it wasa choer getting it a0part. i didnt know i needed to extend the cable, but it seems like i will. help!
After talking to many optical experts on this very issue I was told that "out-take" fans destroy the air flow in your case. Just make sure you have vents to let the hot air out... but you should avoid mounting fans to blow air out.
Again... if your using a small enough bulb with condenser... stick a piece of heat absorbing glass between your lamp and condenser. Add one fan to blow on the glass and your set! Heat issue solved.
Again... if your using a small enough bulb with condenser... stick a piece of heat absorbing glass between your lamp and condenser. Add one fan to blow on the glass and your set! Heat issue solved.
- Status
- Not open for further replies.
- Home
- General Interest
- Everything Else
- The Moving Image
- DIY Projectors
- overhead, heating issues, cooling the lcd panel