11 ms·
Every pair of polarised glasses I've tried has been polarised at a 45 degree angle; this helps with more consistent glare reduction and also means that LCD scre
by DrStalker 16y ago
Every pair of polarised glasses I've tried has been polarised at a 45 degree angle; this helps with more consistent glare reduction and also means that LCD screens don't appear completely black half the time.
I've actually marked the edge of the circular polariser filter I have for my camera so I can tilt my head (wearing polarised glasses) and then quickly move the filter to match.
- tesseract 16y agoI thought the the point of having polarized sunglasses was that they should be polarized vertically in order to block glare (which tends to be polarized horizontally; see http://en.wikipedia.org/wiki/Brewsters_angle http://en.wikipedia.org/wiki/Brewsters_angle). Mine are, anwyay. Usually it is the LCD screens that are polarized at a 45 degree angle - for compatibility with sunglasses.
- devenson 16y agoI had Lens Crafters make me a custom pair of polarized sunglasses with the polarization at 45 degrees to match up with my laptop's polarizer. Used with the laptop, they dim everything I see BUT the laptops screen. Not all laptops have the same 45 degree tilt, some are 180 from mine.
- tesseract 16y agoThat's pretty clever. Do they enable you to use your laptop outdoors in the sun?