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Perhaps by LED they're referring to LED-backlit LCD displays. There's pretty much full coverage of the visible spectrum across different LED types, so the only
by vernie 8y ago
Perhaps by LED they're referring to LED-backlit LCD displays. There's pretty much full coverage of the visible spectrum across different LED types, so the only way to block them is with completely opaque lenses.
- gnode 8y ago> Perhaps by LED they're referring to LED-backlit LCD displays. That's conventional for how LED-backlit LCD displays are marketed to consumers.
- baldfat 8y agoThat isn't how polarization works. It isn't about the spectrum it is about how it travels or is reflected in a more uniform way (normally horizontal. So if you block out horizontal light you get rid of glare or in the case of panels you stop seeing the screen.
- vernie 8y agoRight, well we aren't talking about polarization since LEDs don't emit polarized light, so you'd need notch filters to block the wavelengths LEDs emit, but the notch required to block all LEDs would be entire visible spectrum.