Full Version: S400DD Uv Protection
Does the S400DD have any Uv protection at all? People at work keep telling me that I could get radiation poisoning from the UV radition that comes from these types of bulbs. I have the XL10 in front of fresnal for UV protection. If any UV rays coome off of bulb will the 3/4 inch playwood stop it or do I need something else? My main concern is for me and my family and not the LCD screen I can alwys buy a new screen. Dont want any body parts falling off me ya know
Yes and No. The Ushio S400DD has UV protection in the fact that the outer glass is pretty heavy and thick, which has an added benfit of reducing UV radiation, but the lamp carries no coating for specifically reducing UV. As long as you don't expose yourself to the direct light from the lamp for extended periods of time, you will be just fine. (and even then this could be debated as the lamp glass probably does provide enough protection, but I would much rather be safe, than sorry) Once the lamp is placed in your enclosure, and the box is "buttoned up", there is no risk of UV exposure, plywood is more than plenty to stop the UV radiation coming from the lamp.
Relax and Enjoy your PJ.
cheers,
gs
Relax and Enjoy your PJ.
cheers,
gs
w00t!! Thats all I wanted to hear. I love this PJ.
I was going to post a thread on this, as well as write a letter to USHIO asking for an MSDS sheet on the matter. If you read the INSIDE of the bulb carton, it tells you that there is NO UV protection at all and that the lamp NEEDS to be ENCLOSED.
From doing the Parabolic Tests, I can tell you that that lamp will make you sick. I have tried to keep my exposure times short, but afterwards I have ALWAYS felt ill. A few nights I went to bed feeling my ears, face, arms and hands slightly burning as if I was in the sun, but it was a much deeper feeling. I think the UV from this is much more dangerous than the UV from the sun.
There are different types of UV type A, type B, and type C.
http://en.wikipedia.org/wiki/UV
In a way, I think we are crazy and stupid to be playing with these bulbs like I have been. I also strongly wonder about the UV protection people are placing in their PJ's. Has anyone actually done any real scientific research? It would be a shame to have all of us ruin our eyes from DIY Projections.
From doing the Parabolic Tests, I can tell you that that lamp will make you sick. I have tried to keep my exposure times short, but afterwards I have ALWAYS felt ill. A few nights I went to bed feeling my ears, face, arms and hands slightly burning as if I was in the sun, but it was a much deeper feeling. I think the UV from this is much more dangerous than the UV from the sun.
There are different types of UV type A, type B, and type C.
http://en.wikipedia.org/wiki/UV
In a way, I think we are crazy and stupid to be playing with these bulbs like I have been. I also strongly wonder about the UV protection people are placing in their PJ's. Has anyone actually done any real scientific research? It would be a shame to have all of us ruin our eyes from DIY Projections.
get a lexan sheet in the jector and make sure its facing the right way, then seal up the projector and take care of all light leaks, then figure out a way to block the light coming out of the fan hole. You should be pretty safe there. And always take breaks from the projector, like take a 5 min break every hour(thats why there is a "pause" in every viewing system") and relax your eyes.
QUOTE (Lucky_Me @ Oct 14 2005, 10:02 AM)
I was going to post a thread on this, as well as write a letter to USHIO asking for an MSDS sheet on the matter. If you read the INSIDE of the bulb carton, it tells you that there is NO UV protection at all and that the lamp NEEDS to be ENCLOSED.
From doing the Parabolic Tests, I can tell you that that lamp will make you sick. I have tried to keep my exposure times short, but afterwards I have ALWAYS felt ill. A few nights I went to bed feeling my ears, face, arms and hands slightly burning as if I was in the sun, but it was a much deeper feeling. I think the UV from this is much more dangerous than the UV from the sun.
There are different types of UV type A, type B, and type C.
http://en.wikipedia.org/wiki/UV
In a way, I think we are crazy and stupid to be playing with these bulbs like I have been. I also strongly wonder about the UV protection people are placing in their PJ's. Has anyone actually done any real scientific research? It would be a shame to have all of us ruin our eyes from DIY Projections.
From doing the Parabolic Tests, I can tell you that that lamp will make you sick. I have tried to keep my exposure times short, but afterwards I have ALWAYS felt ill. A few nights I went to bed feeling my ears, face, arms and hands slightly burning as if I was in the sun, but it was a much deeper feeling. I think the UV from this is much more dangerous than the UV from the sun.
There are different types of UV type A, type B, and type C.
http://en.wikipedia.org/wiki/UV
In a way, I think we are crazy and stupid to be playing with these bulbs like I have been. I also strongly wonder about the UV protection people are placing in their PJ's. Has anyone actually done any real scientific research? It would be a shame to have all of us ruin our eyes from DIY Projections.
Most of glass will cut UV at 300 nm and air will absorb UV that is below 200nm. The short wavelength UV is very harmful to your eyes, the longer wavelength UV is not that bad and we get a lot of it from the sun. I think the most important thing for us is not to look at the lamp directly. I don't think the leaked light will cause skin cancer.
My work in the past involved using a array of 254 nm lamps. A few secrets of exposure to the light could cause my eyes very uncomfortable.
My work in the past involved using a array of 254 nm lamps. A few secrets of exposure to the light could cause my eyes very uncomfortable.
QUOTE (Lucky_Me @ Oct 14 2005, 12:02 PM)
I was going to post a thread on this, as well as write a letter to USHIO asking for an MSDS sheet on the matter. If you read the INSIDE of the bulb carton, it tells you that there is NO UV protection at all and that the lamp NEEDS to be ENCLOSED.
From doing the Parabolic Tests, I can tell you that that lamp will make you sick. I have tried to keep my exposure times short, but afterwards I have ALWAYS felt ill. A few nights I went to bed feeling my ears, face, arms and hands slightly burning as if I was in the sun, but it was a much deeper feeling. I think the UV from this is much more dangerous than the UV from the sun.
There are different types of UV type A, type B, and type C.
http://en.wikipedia.org/wiki/UV
In a way, I think we are crazy and stupid to be playing with these bulbs like I have been. I also strongly wonder about the UV protection people are placing in their PJ's. Has anyone actually done any real scientific research? It would be a shame to have all of us ruin our eyes from DIY Projections.
From doing the Parabolic Tests, I can tell you that that lamp will make you sick. I have tried to keep my exposure times short, but afterwards I have ALWAYS felt ill. A few nights I went to bed feeling my ears, face, arms and hands slightly burning as if I was in the sun, but it was a much deeper feeling. I think the UV from this is much more dangerous than the UV from the sun.
There are different types of UV type A, type B, and type C.
http://en.wikipedia.org/wiki/UV
In a way, I think we are crazy and stupid to be playing with these bulbs like I have been. I also strongly wonder about the UV protection people are placing in their PJ's. Has anyone actually done any real scientific research? It would be a shame to have all of us ruin our eyes from DIY Projections.
I have the Lexan, but I haven't wanted to cut it yet... sigh. Thanks for adding to the thread.
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