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BMW 3-Series (E90 E92) Forum
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Polarized Glasses Radio Display Fix
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09-27-2011, 09:12 PM | #45 |
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Wanna get rid of the extra???
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09-28-2011, 12:43 AM | #46 | |
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1. http://www.3dlens.com/shop/polarizer-200x250mm.php Title: Transmissive Polarizer 200 x 250mm Price: $ 9.99 Is that it states 'Currently No Longer Available' on their site... Great info - ordered the $34 film - be great to be able to view the display again
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09-28-2011, 09:41 AM | #47 | |
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Polarizer 210x300mm for $10.00 USD. They also show a page for LCD polarizing lens . . . since I believe the radio display is LCD does anyone know if the LCD film would be a better choice? |
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09-30-2011, 02:47 PM | #48 | |
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1 Last Strip Available
I HAVE ONE EXTRA PRE-CUT STRIP OF FILM LEFT... I will be more than happy to sell it for $5 (delivered by mail). Believe me, it will be the best five dollars you ever spend on your BMW.
If anyone is interested, just PM me. Quote:
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09-30-2011, 03:35 PM | #49 |
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PM'd you shortly after your post - I'll take it...
-Jay-
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10-02-2011, 02:21 AM | #50 |
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I will pay more than this guy
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10-06-2011, 05:48 PM | #51 |
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Nice
Received the film from MagicMan - took all of 5 secs to install and Bam! now I can see the display perfectly normal with polarized glasses! Easiest mod yet
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10-26-2011, 08:30 PM | #53 |
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11-19-2011, 07:02 PM | #59 |
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I found the template isn't exact for the best transmissivity. It is not 45 degrees but maybe more like 55 degrees.
To those of you who asked me for a piece of this material if you can be patient I can see what I can do to cut some oversize pieces at the best transmission angle and send them out. I am not back in town until the 30th of Nov so if you can wait I will go get this out of the drawer I have it in. I think two pieces of thin cardboard will be fine in an envelope since the film has protective plastic covering (peel off) on each side. It is not clear, repeat it is not clear but slightly smoked color. It works terrific by the way. No more head tilting for me. |
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05-20-2012, 06:19 PM | #60 |
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I am looking for some film, mailed to Canada.
I intend to install it by disassembling the head unit so there's no way you could see the edges or ever peel it off so a teensy bit larger than exact fit would be perfect. PM me if there's any out there. |
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05-22-2012, 08:17 AM | #61 | |
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I put one in that was an exact cut and it had a bit of trouble staying in, but I had noticed how easily it installed so I cut another that was just a bit larger and it installed in seconds and stayed in place. I later took it back out as I decided I'd rather have the polarization-conflict sometimes, rather than the always half-bright as you look through the film.
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05-22-2012, 09:23 AM | #62 | |
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Now to find the right film for decent money... Ideally I'd like some quarter-wave plate to circular polarize the output light and that's about it. |
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05-23-2012, 03:47 PM | #63 | |
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I am also interested in anyone has some material available. |
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05-25-2012, 09:50 AM | #65 | |
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LCDs require polarization to function, otherwise they just appear to a solid colour the same as the backlight. The construction of the panel determines the orientation of polarization required at the output. So the radio head unit is polarized unfavourably for sunglasses, which is really, really stupid for an automotive application. A half-wave plate will rotate the polarization 90 degress. A quarter-wave plate will result in circularly polarized output (which will pass through polarized eyewear at any angle suffering only a partial reduction in brightness) but the plate must be properly oriented at 45 degrees to the current polarization. I really wish we didn't need to fix OPTEX/BMW engineering problems ourselves. |
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05-25-2012, 06:16 PM | #66 |
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You sound like you are an engineer with experience with optics. Your post is informative. Thanks.
Do you think you could look at the links in this thread and offer a suggestion as to the available polarizer that you would recommend for this precise application? |
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