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AV and Multimedia Related Thread, Projectors & Epilepsy in Technical; Hi Everybody, I have been asked to get a blue bulb for one of our projectors due to a child ...
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    Projectors & Epilepsy

    Hi Everybody,

    I have been asked to get a blue bulb for one of our projectors due to a child in that class suffering from epilepsy. Now putting the issue of the "blue bulb" to one side, does anybody have any ideas on how I could achieve a similar outcome. The projector is an Epson EB-X11.

    I have been looking around and all I seem to be finding is the IWB's do not trigger a seizure unless the content contains flickering images etc. Does anyone have any experience of this?

    Thanks in advance.

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    The X11 should be fine as it's LCD, DLP on the other hand may cause issues with flickering / rainbow, but I'm no expert!

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    My brother suffers Epilepsy, a projector shouldn't cause seizures.

    Who asked for this?
    Last edited by Dos_Box; 4th October 2013 at 09:52 AM.

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    does the child have an LA supporter or similar? They might be able to help or confirm that there isn't an issue?
    A friend of mine gets visual seizures and she is very much affected by flickering - she can't watch some televisions because if it.

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    Quote Originally Posted by rs513 View Post
    I have been looking around and all I seem to be finding is the IWB's do not trigger a seizure unless the content contains flickering images etc.
    From what I've seen it's between 5 - 30 hertz.

    Most projectors [at least here] are 50+ hertz.


    This sounds like someone making a request but not actually understanding ANYTHING about it.

    I'm also failing to find a blue bulb/lamp [I don't think they exist] But that sounds like it'd be more for dyslexia than epilepsy.

  6. Thanks to X-13 from:

    rs513 (4th October 2013)

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    ROFLAO a blue bulb.

    Had to be said

    Ben

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    It took quite an effort to keep a straight face!

    Thank you for the replies, we haven't had such a situation before so I did not want to jump in with my opinion without doing a bit of research first.

    I was told it was her health adviser (something along those lines) that has requested this, so I will go back and ask some questions!

    Thanks again.

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    X-13's Avatar
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    Quote Originally Posted by plexer View Post
    ROFLAO a blue bulb.

    Had to be said

    Ben
    E14 Blue Bulb | eBay

    Blue bulb.

    The same effect could be achieved with blue acetate on the lens... Which I would NOT recommend.

    TBH, if it turns out this is a legit request. As in it really is needed and isn't a misunderstanding.

    It would probably be easier to get something like the blue tint glasses dyslexics use.



    Le EDIT: Ah, blue tint IS useful for people with epilepsy.

    Suppressive efficacy by a commercially available b... [Epilepsia. 2006] - PubMed - NCBI

    Suggest Z1 blue tint lenses for the pupil... IF you can find them. I don't think they're made anymore.

    Alternatively, any glasses with a deep blue tint MAY be just as effective. [I accept no responsibility if they aren't effective.]

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    rs513 (4th October 2013)

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    FN-GM's Avatar
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    You could always change the colour settings so its more blue?

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    Quote Originally Posted by FN-GM View Post
    You could always change the colour settings so its more blue?
    It needs to be a REALLY deep blue.

    You'd disadvantage an entire class because of one pupil.

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    Quote Originally Posted by X-13 View Post
    Oh I didn't doubt that you could get standard bulbs in blue but a projector lamp no way man.

    Ben

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    Quote Originally Posted by X-13 View Post
    E14 Blue Bulb | eBay

    Blue bulb.

    The same effect could be achieved with blue acetate on the lens... Which I would NOT recommend.

    TBH, if it turns out this is a legit request. As in it really is needed and isn't a misunderstanding.

    It would probably be easier to get something like the blue tint glasses dyslexics use.



    Le EDIT: Ah, blue tint IS useful for people with epilepsy.

    Suppressive efficacy by a commercially available b... [Epilepsia. 2006] - PubMed - NCBI

    Suggest Z1 blue tint lenses for the pupil... IF you can find them. I don't think they're made anymore.

    Alternatively, any glasses with a deep blue tint MAY be just as effective. [I accept no responsibility if they aren't effective.]

    Thanks for this, I did suggest the glasses but it didn't seem too popular. I will go back armed with this information and see what they say.

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    Quote Originally Posted by rs513 View Post
    Thanks for this, I did suggest the glasses but it didn't seem too popular.
    I can see why.

    Glasses - Parents need to pay [and IIRC, they're EXPENSIVE]
    Blue lamp/bulb - School pays

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    Interesting one. I've a relative who is photosensitive and another who uses large print at school, and so from an interested, as opposed to expert, point of view:

    I think I found the same source that you did: https://www.epilepsy.org.uk/info/pho...lepsy/triggers says that IWBs are 'not likely' to cause seizure

    However the student's recommendation has been made for a reason, and I am not an expert, so I'd default to the adviser's advice.

    But I'd chuck in another couple of considerations:

    - a child with some kind of special needs wants to feel as normal as possible. They don't necessarily want to be the one who has the huge print, or the funny machine, or, as possibly in this case, the one that has to wear funny glasses

    however

    - you're making provision for them in one classroom - is that the only classroom they're ever going to use? Do you have a projector in the hall?
    - if peril sensitive sunglasses are a real option, is it better to get the student familiar with using them at school? Presumably they'd be beneficial at the cinema, at home with the TV etc.

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    rs513 (4th October 2013)

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    Quote Originally Posted by theriver View Post
    - if peril sensitive sunglasses are a real option, is it better to get the student familiar with using them at school? Presumably they'd be beneficial at the cinema, at home with the TV etc.
    This brings up a good point.

    If they're one of the people who have problems with screen flicker outside of the typical 5-30 hertz range, why has NOTHING been done for them at home? [It's vastly cheaper to just guy the damn glasses than it is to replace EVERYTHING that could cause a problem.]

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