Hi,
I found a thread regarding the type of projector that I've attached an image detailing but nobody went into depth on the possibility of using an anti-glare filter to sorta, in a way, convert a backlight LCD into a reflective LCD sorta like the GBC. I'm asking this because I've built this projector setup but the glare that the lights produce on the LCD is washing out my picture. Would an anti-glare filter make it possible for my lights to make the picture brighter instead of washing out the picture?
Thanks!
I found a thread regarding the type of projector that I've attached an image detailing but nobody went into depth on the possibility of using an anti-glare filter to sorta, in a way, convert a backlight LCD into a reflective LCD sorta like the GBC. I'm asking this because I've built this projector setup but the glare that the lights produce on the LCD is washing out my picture. Would an anti-glare filter make it possible for my lights to make the picture brighter instead of washing out the picture?
Thanks!
Attachments
You need a polarizer. You know when you look through a store window and see your partial reflection? If you took a picture of that window with a polarizing lens on your camera, you could see inside without any reflection.
Polarizer Filter
Reduces glare and reflections, saturates colors and darkens blue skies. Ideal when photographing water or through glass to reduce reflection. The polarizer can be rotated to determine the amount of reflection to be removed. When photographing scenics, rotate the polarizer to change blue sky densities from light to dark blue. Creates dramatic contrast between blue skies and white clouds.
http://www.tiffen.com/Filter_&_Lens_Brochure/BFILT_06_07.htm
Check out the last set of pictures.
Polarizer Filter
Reduces glare and reflections, saturates colors and darkens blue skies. Ideal when photographing water or through glass to reduce reflection. The polarizer can be rotated to determine the amount of reflection to be removed. When photographing scenics, rotate the polarizer to change blue sky densities from light to dark blue. Creates dramatic contrast between blue skies and white clouds.
http://www.tiffen.com/Filter_&_Lens_Brochure/BFILT_06_07.htm
Check out the last set of pictures.
Sounds like a good idea!
By the way, are those anti-glare filters that you see on Ebay for sticking over computer monitors the same (or nearly the same) thing as polarizing filters?
I did a quick google search and I'm seeing them refered to as "polarizing anti-glare filters"
Thanks
By the way, are those anti-glare filters that you see on Ebay for sticking over computer monitors the same (or nearly the same) thing as polarizing filters?
I did a quick google search and I'm seeing them refered to as "polarizing anti-glare filters"
Thanks
So you've actually built that projector? How well does it work, other than being washed out? Is it bright enough? How many/what kind of bulb(s) are you using? How's the focus? If this method actually works well, it's obviously a lot easier to build than ripping a panel apart so you can shine a light through it. I for one would be interested to hear how your experimenting with a polarizer works out.
I don't know about the monitor anti-glare sheets, but I know www.surplusshed.com has some polarizing filters. Just search for "polarizing" and you'll get a few hits.
I don't know about the monitor anti-glare sheets, but I know www.surplusshed.com has some polarizing filters. Just search for "polarizing" and you'll get a few hits.
I'll look into those polarizing sheets 🙂
So..., if I stick a polarizing sheet over my LCD, will that allow me to brighten the image using my external lights without the glare?
So..., if I stick a polarizing sheet over my LCD, will that allow me to brighten the image using my external lights without the glare?
Just an Idea, and i'm really not sure about this:
You could try buying one of those polarizing lenses for a camera from a camera parts shop and attach it to your projection lens. It might filter the image before it gets to your projection screen.
If it works with a camera with the light coming in, it might work the other way with a projector with the light going out.
I might be wrong, but if I am wrong I'm interested in why I would be wrong. (Be nice).
You could try buying one of those polarizing lenses for a camera from a camera parts shop and attach it to your projection lens. It might filter the image before it gets to your projection screen.
If it works with a camera with the light coming in, it might work the other way with a projector with the light going out.
I might be wrong, but if I am wrong I'm interested in why I would be wrong. (Be nice).
I cant decide between buying the polarizing lens or the polarizing sheets!
I guess I'll get both and try both methods as they're only $2.50 each.
If the light is just glaring on the LCD though, I wonder it's even illuminating the picture at all :-\
I guess I'll get both and try both methods as they're only $2.50 each.
If the light is just glaring on the LCD though, I wonder it's even illuminating the picture at all :-\
Nice Design
I don't know anything about the question at hand. But I wonder if you could provide a link to the thread you are talking about. This seems like a very intresting way to make a smaller DIY projector..
I don't know anything about the question at hand. But I wonder if you could provide a link to the thread you are talking about. This seems like a very intresting way to make a smaller DIY projector..
???
am i mistaken or are those light bulbs above the lcd screen right by the mirror? it seems like the light source should be UNDER the LCD screen and/or sectioned off so the rest of the light doesn't pour itself all over the mirror along with the LCD image.
maybe i'm just looking at it wrong..
dlv
am i mistaken or are those light bulbs above the lcd screen right by the mirror? it seems like the light source should be UNDER the LCD screen and/or sectioned off so the rest of the light doesn't pour itself all over the mirror along with the LCD image.
maybe i'm just looking at it wrong..
dlv
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