Yes, the blue tinted ones are a bloody nuisance.
And do some of them change colour slightly, like a prism? I find
I'm glad I have tinted glass in the rear windows, that does help, and
sometimes I can manage without dipping.
Badly adjusted headlights are another problem with oncoming cars.
Yes, I've had my cataracts done, and been rated 20/20 by my optometrist.
the prismatic effect of xenon light can sometimes make the xenon
headlights look bright blue, and on a bumpy road they can, at least
momentarily appear to be emergency vehicle lights. The latest trend is
LED lights, which is all very well but the human eye does react well to
direct view of LED and they can cause real eye ball pain and direct
viewing is not advisable (same goes for xenon). So how either of these
systems have been allowed to be put in to mass usage is questionable at
That'd give you red green & blue. If you shine it on orange then it'll
probably look different which s why most white leds cheat & use a phosphor
& a blue led to get something approaching a true white light. Of course
then you need to decide what you mean by that.
Street and home lighting is generally not a problem as the light sources
are usually above the eyeline.
I cannot see why there is such a rush to convert street lights, the old
sodium ones put out more light per watt input and the light is more
restful on the eye and gives better contrast, hence improved visibility
in fog and movement shows up better.
I have only once encountered fog where it was practically speaking
impossible to drive on an unlit B road, it was early 70's and I quite
literally was leaning out of the window of an HB Viva trying to keep the
opposite verge in sight while keeping a look out in case anything else
was daft enough to be on the road, the nearside verge was impossible to
see from the driver's seat, literally tick over in first was as fast as
was vagualy safe. I was very pleased to reach street lighting at the
edge of the village without going down a ditch or hitting anything.
When I was commuting between Sheffield and Bakewell I'd get that
near-zero visibility a few times a year - Stony Ridge Road, S17 typically.
I'd not needed fog lights as such before then, so can't really judge.
But the ones on my BMW Mini were utterly useless, and of course the
Xenon headlights just reflected everything back. At night, it was even
marginal with the sidelights, although being seen meant of course they
had to be on.
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