11-19-2012, 09:00 PM | #16 | |
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As others have said, it's ABSOLUTELY INVISIBLE with even the slightest amount of ambient light. |
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11-20-2012, 01:44 AM | #17 |
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Can you provide some evidence that a PW's light on its minimum setting causes any level of eye strain whatsoever?
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11-20-2012, 01:54 AM | #18 |
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The PW at minimum lighting setting (in a dark room) is probably TOO dark to read comfortably unless you've habituated to the dark over a long period of time.
Can't see how it would be a problem. During daytime, it's almost invisible at the lowest level. Unless there is a battery draining issue, seems like it's not a serious practical problem to have the light on perpetually. |
11-20-2012, 02:19 AM | #19 |
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Perhaps they're concerned about the 17 - 68 year MTBF rating on the LED (assuming typical MTBF and 4 hours per day reading) or 3 - 11 years if it were to run 24 hours per day, using the typical range of MTBF ratings for an LED. :-)
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11-20-2012, 07:35 AM | #20 | |
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I don't know why there are so many defenders of not having an option to switch off the light. You don't lose anything if the option is there. |
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11-20-2012, 07:38 AM | #21 |
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I repeat my previous question. What evidence do you have that (as you claimed) the light on its lowest level causes eye strain?
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11-20-2012, 07:46 AM | #22 |
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11-20-2012, 09:09 AM | #23 |
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11-20-2012, 12:23 PM | #24 | |
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Amazon.de did lie to me (they did write me several times that it is possible to turn it off). Now there is an information on the website that it isn't possible. Beside these points it costs you more money to have the lights on even if you don't need it. |
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11-20-2012, 03:42 PM | #25 | |
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The difference that you're seeing isn't the tiny amount of residual light, it's the two layers of material necessary to diffuse the light and detect your touch. The screen looks very different because it IS different. You can see that the text it below the surface, whereas before it looked like it was practically ON the surface. You can see the fine dots for the capacitive layer if you look closely. What you cannot see is the light, it's just physically impossible. I have extremely light sensitive eyes, so much that my eye doctors always tell me that I should be sure to always wear sunglasses outdoors and I can tell the difference between glass & polycarbonate lenses, yet I *CANNOT* detect any difference between levels 1,2,3, or 4 in a lit room, which means that I'm definitely not seeing the light at level 0. |
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11-20-2012, 03:53 PM | #26 |
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Costs more? We're talking about 50 milliamps of current (a rough guess, but on the very high end), or ~ 1/4 watt @ 5v, which at 15 cents per kwh costs about $0.0000375 per hour... your charger wastes FAR more power than that if you leave it plugged in even a few minutes too long.
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11-20-2012, 04:57 PM | #27 | |
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No it's not the layers. The screen looks exactly like the Kindle Touch only when it is on standby (showing the screensaver) - I'd like the option to keep it off. If you cannot see the difference put it next to an earlier Kindle or switch it on in the dark. |
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11-20-2012, 05:08 PM | #28 |
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Actually, I accidentally found that I can turn the light off! When I got the PW, I was curious where the Magnetic sensor was located. So I got out a magnet. By playing with the magnet I found that I could periodically turn off the light completely. I have not followed through to see if it can be done with precision but I did do it again yesterday!
The sensor seems to react in the lower right corner and in about inch to 1/2 inch Last edited by FF2; 11-20-2012 at 06:32 PM. |
11-20-2012, 05:33 PM | #29 | |
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11-20-2012, 05:40 PM | #30 | |
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The sensor wouldn't be a good way to turn off the light as it also puts the device to sleep. That said, I still don't understand the need. |
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