The glass on my OHP is scratched very badly and I plan on replacing it. Would it be a good or bad thing to replace it with IR blocking glass?? I see good and bad things with it.
Good: I assume it would keep heat away from my LCD screen which I am paranoid about burning up.
Bad: Would all that heat stay inside teh OHP causing more problems??
Curious for your input
Good: I assume it would keep heat away from my LCD screen which I am paranoid about burning up.
Bad: Would all that heat stay inside teh OHP causing more problems??
Curious for your input
good idea
Very good idea: You want the IR to warm up stuff inside the OHP so it can be removed by the air stream. NOT to warm up your LCD.
Very good idea: You want the IR to warm up stuff inside the OHP so it can be removed by the air stream. NOT to warm up your LCD.
Is the stage glass necessary?
I recently purchased an OHP where the stage glass was broken. Replacing is an option, but I wondered if I'm using it as LCD projecter and I install a fan to blow between the OHP stage and the LCD to keep the LCD cool, do I actully need the stage glass?
Will the fan keep the LCD cool enough?
Is there some other issue (besides heat) that would cause problems if I didn't replace the stage glass?
Thanks.
I recently purchased an OHP where the stage glass was broken. Replacing is an option, but I wondered if I'm using it as LCD projecter and I install a fan to blow between the OHP stage and the LCD to keep the LCD cool, do I actully need the stage glass?
Will the fan keep the LCD cool enough?
Is there some other issue (besides heat) that would cause problems if I didn't replace the stage glass?
Thanks.
try it!
Sounds to me like you can do without it. If it was just a flat piece of glass, without any fresnel rings, etc., then all it did was to give you a flat surface for transparencies.
I would try going without it, but measure the temperature of your LCD while it is running. If you want the LCD to run cooler, then you could get a piece of DIYprojectorCompany's IR filter glass cut to the right size. It is not very expensive, and it does a good job of blocking IR. Only downside is that it blocks about 20% of the visible light too.
One caveat: If hot air blows up toward the LCD, then you should replace the glass.
Sounds to me like you can do without it. If it was just a flat piece of glass, without any fresnel rings, etc., then all it did was to give you a flat surface for transparencies.
I would try going without it, but measure the temperature of your LCD while it is running. If you want the LCD to run cooler, then you could get a piece of DIYprojectorCompany's IR filter glass cut to the right size. It is not very expensive, and it does a good job of blocking IR. Only downside is that it blocks about 20% of the visible light too.
One caveat: If hot air blows up toward the LCD, then you should replace the glass.
- Status
- Not open for further replies.