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The visor mounted to a track which runs from the centre above the windscreen, round to above the side window.
The visor's position along this track is controlled by a servo and sensor, aligning it between the driver and the strongest light source.
This allows the use of a much narrower visor, so
it doesn't blot out the driver's view of overhead signs etc.
Optionally, a second servo could provide vertical adjustment of an even smaller visor.
Automatic Sun Visor
Automatic_20Sun_20Visor
[tatterdemalion, Oct 05 2009]
Other idea, same problem
Localized_20Glare_20Control
[loonquawl, Oct 06 2009]
And more..
LCD_20windshield
[loonquawl, Oct 06 2009]
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I like the idea that on a dark road, at night, the only bright light source will be those pesky traffic lights (or other such light source) ... "I didnt see them officer"
Lets say add "its disabled when the headlights are on". |
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Ahem...
"It's disabled when the headlights are on" |
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Another improvement, it could be programmed with the driver's height (or the height of the driver's eyes). Thus, it would be disabled when the sun is too high to get in the driver's eyes, and when the sun is too low for the visor to be useful. |
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Knowledge of the height of the driver's eyes would be especially important if the visor's height is servo-controlled. |
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Another improvement, it could use GPS, a magnetic compass, and a calender, and automatically move to block where the sun *should* be, even when the sun is hidden by clouds or buildings. |
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Thus, when the sun ceases to be blocked, the visor is already in the correct spot. |
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How does the visor know where the driver's eyes are? |
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They'll be on the same side as the steering wheel. |
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"They'll be on the same side as the steering wheel."
But are they 5" back from the steering wheel, or 25"? What happens if the driver tilts her head to the left or the right? What if the driver leans the seat back a little? |
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How does the visor *know* where the driver's eyes are? |
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Eye tracking may not be required. If the driver manually pulls the visor to the correct position once, the software can immediately calculate the elevation of the drivers eye position relative to sun direction. It can then maintain that relationship until another driver manually adjusts it. |
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Whether the small visor blocks 'enough' light depends what you're using it for. |
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To reduce overall light level, wear sunglasses as normal. |
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The purpose of the visor is to block direct sunlight to the drivers eyes. |
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[Phoenix], that's kinda my point. |
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Consider a little old lady who sits hunched over the steering wheel - because she sits so close to the windscreen/shield, the visor would almost completely block her vision when deployed. |
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Consider a young woman, in deep conversation with her friend, who keeps looking sideways to maintain eye contact. |
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Consider you or I, trying to get the right CD selected. |
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"On the driver's side" seems to me to be about the closest targetting you could expect. |
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Apologies if this has been done to death already, I haven't been paying attention for a few years. Nice to see you guys again. |
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"Nice to see you guys again."
Ditto. [Ian Tindale] has been keeping your seat warm for you. Grab a gun and join the fight. |
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A sun visor is only needed when the driver is looking in roughly the direction of the sun. |
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If you're looking at the kids in the back, rooting through your CDs or handbag, fiddling with the radio, sending or reading text messages etc: |
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1) you don't need the visor, and more importantly, |
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2) DON'T - look where you're bloody going! |
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[Twizz], I only root in my handbag when stopped at the lights. |
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[Phoenix], Ew. <Gives up seat to nearest old lady who seems to be wandering around in a daze with a bruise flowering on her forehead.> |
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