+ Post New Thread
Page 2 of 2 FirstFirst 12
Results 16 to 26 of 26
AV and Multimedia Related Thread, Overhead video projector too bright - Teacher complains! in Technical; Originally Posted by Jamman960 Do any other rooms have a similar setup? and if so are other teachers complaining of ...
  1. #16
    adhutton's Avatar
    Join Date
    Dec 2008
    Location
    Northeast England
    Posts
    399
    Thank Post
    164
    Thanked 86 Times in 64 Posts
    Rep Power
    54
    Quote Originally Posted by Jamman960 View Post
    Do any other rooms have a similar setup? and if so are other teachers complaining of the same thing? the last thing you want is to change one room and then have everyone else decide theirs need changing also

    Swapping in a short/ultrashort teacher might be an easier solution
    Quite a few other rooms have the same setup and this is the only complaint we've had.

    This particular teacher wears glasses and the glare seems worse with the glasses...I wear glasses myself and I would find it a problem I think, so I do have some sympathy with the situation.

    Andrew

  2. #17
    jc1875's Avatar
    Join Date
    Feb 2009
    Posts
    128
    Thank Post
    9
    Thanked 23 Times in 19 Posts
    Rep Power
    15
    Does he/she stare at the sun too?.....

    We always re-inforce basic training when putting standard throw projectors into classrooms - what at the board, back to the projector, step to the side then turn.

    I always thought these complaints were a mountain out of a molehill - i remember one educator from a previous employer insisted on wearing sunglasses.

  3. Thanks to jc1875 from:

    adhutton (9th March 2011)

  4. #18


    Join Date
    Sep 2008
    Posts
    1,769
    Thank Post
    323
    Thanked 259 Times in 212 Posts
    Rep Power
    120
    Cost solution - replace with short throw.
    Free solution - Intstruct teacher to use IWB with their back to kids and then step to the side when they need to speak to them.

    You could also see if you can reduce the image from the projector and move the mount closer to the IWB(although that's probably not going to be enough to make a difference)

  5. Thanks to penfold from:

    adhutton (9th March 2011)

  6. #19

    elsiegee40's Avatar
    Join Date
    Jan 2007
    Location
    Kent
    Posts
    11,076
    Thank Post
    1,792
    Thanked 2,188 Times in 1,619 Posts
    Rep Power
    774
    All my Sanyo projectors have faded with age... do you have an old one in somebody else's room that it can be swapped with? Another teacher will probably be delighted with a bright projector.

  7. Thanks to elsiegee40 from:

    adhutton (9th March 2011)

  8. #20


    Join Date
    Oct 2006
    Posts
    3,411
    Thank Post
    184
    Thanked 356 Times in 285 Posts
    Rep Power
    149
    Just throw some dust into the projector, should make it suitably dark.

  9. Thanks to j17sparky from:

    adhutton (9th March 2011)

  10. #21


    Join Date
    Sep 2007
    Location
    UK
    Posts
    5,426
    Thank Post
    1,437
    Thanked 880 Times in 565 Posts
    Rep Power
    645
    Does it have a lamp save mode? That will reduce the light outout.

  11. Thanks to laserblazer from:

    adhutton (9th March 2011)

  12. #22
    Busybub's Avatar
    Join Date
    Feb 2007
    Posts
    384
    Thank Post
    44
    Thanked 39 Times in 37 Posts
    Rep Power
    22
    Quote Originally Posted by adhutton View Post
    Quite a few other rooms have the same setup and this is the only complaint we've had.

    This particular teacher wears glasses and the glare seems worse with the glasses...I wear glasses myself and I would find it a problem I think, so I do have some sympathy with the situation.

    Andrew
    Send her out to get an eye test, and supply her with a pair of polarised glasses. Will reduce glare and cut the amount of light hitting her eyes.

  13. Thanks to Busybub from:

    adhutton (9th March 2011)

  14. #23

    tech_guy's Avatar
    Join Date
    May 2007
    Location
    That little bit in the middle of Little Old England
    Posts
    8,136
    Thank Post
    1,913
    Thanked 1,345 Times in 743 Posts
    Blog Entries
    3
    Rep Power
    395
    Equip your teacher with a set of these:


  15. Thanks to tech_guy from:

    adhutton (9th March 2011)

  16. #24
    Hacksawbob's Avatar
    Join Date
    Apr 2008
    Location
    North West UK
    Posts
    192
    Thank Post
    13
    Thanked 20 Times in 16 Posts
    Blog Entries
    2
    Rep Power
    17
    You can get filters for cameras that reduce light without changing colour. They come in stops 1 2 3 (higher darker) and you can double them up. It might be your best bet to get the Cokin square plastic type. Also there are rotating polarising lenses available for cameras they will only allow light to travel through in one direction (to reduce reflections in pictures + enhance contrast.) One might in its vertical orientation reduce the light spread creating dimmer edges which means that the projector will be easier to stand in front of.
    HOYA 55mm Circular Polarising Filter | Dixons | PM me if you want me to have a go with one.
    Of course there is not a filter mount thread on the projector so you may need to get creative with gaffer tape and blue tack.

  17. #25

    localzuk's Avatar
    Join Date
    Dec 2006
    Location
    Minehead
    Posts
    17,684
    Thank Post
    516
    Thanked 2,453 Times in 1,899 Posts
    Blog Entries
    24
    Rep Power
    833
    Quote Originally Posted by Hacksawbob View Post
    You can get filters for cameras that reduce light without changing colour. They come in stops 1 2 3 (higher darker) and you can double them up. It might be your best bet to get the Cokin square plastic type. Also there are rotating polarising lenses available for cameras they will only allow light to travel through in one direction (to reduce reflections in pictures + enhance contrast.) One might in its vertical orientation reduce the light spread creating dimmer edges which means that the projector will be easier to stand in front of.
    HOYA 55mm Circular Polarising Filter | Dixons | PM me if you want me to have a go with one.
    Of course there is not a filter mount thread on the projector so you may need to get creative with gaffer tape and blue tack.
    Circular polarising filters do change the colour - they increase contrast, reducing brightness, and possibly increasing the saturation of the colours in the image.

  18. #26
    Hacksawbob's Avatar
    Join Date
    Apr 2008
    Location
    North West UK
    Posts
    192
    Thank Post
    13
    Thanked 20 Times in 16 Posts
    Blog Entries
    2
    Rep Power
    17
    perhaps I could have been clearer, I am suggesting two different types of filter Neutral density filters (no colour effect) and circular polarising the latter MAY make some colour difference to the projected image, not significant to make it not worth trying if it gets a mardy teacher of a fellow techs back its got to be worth a go!

    The effect in photography as I'm sure you're aware is achieved by reducing scattering of light, however this is due to reducing reflected light coming at the lens from quite large angles in preference to a desired direction of light (usually from the sun). In this case the lens would be used in reverse with a relatively short distance between light source and filter. It probably wont have the same contrast altering effect as it has in photography.

SHARE:
+ Post New Thread
Page 2 of 2 FirstFirst 12

Similar Threads

  1. Overhead Projector Maintenance Contracts
    By adhutton in forum Hardware
    Replies: 11
    Last Post: 7th March 2011, 01:54 PM
  2. [Video] Halloween 2010: Math Teacher has trouble playing a video in class
    By mattx in forum Jokes/Interweb Things
    Replies: 4
    Last Post: 31st October 2010, 02:30 PM
  3. [News] Teacher Caught On Video Stealing From Lockers [USA]
    By DaveP in forum Jokes/Interweb Things
    Replies: 0
    Last Post: 2nd May 2010, 01:14 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •