Timeline for Can a laser display numbers like an LCD 7 segment display? [closed]
Current License: CC BY-SA 3.0
26 events
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| Apr 13, 2017 at 12:32 | history | edited | CommunityBot |
replaced http://electronics.stackexchange.com/ with https://electronics.stackexchange.com/
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| Sep 13, 2014 at 8:19 | history | closed | clabacchio | Needs more focus | |
| Sep 13, 2014 at 8:19 | history | reopened |
PeterJ clabacchio |
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| Sep 13, 2014 at 6:43 | history | edited | PeterJ | CC BY-SA 3.0 |
Put back duplicate message - never seen it before and not sure if removing was the right thing to do
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| Sep 13, 2014 at 6:35 | history | edited | PeterJ | CC BY-SA 3.0 |
General tidy up, remove excessive meta information and apologies about (now deleted) duplicate
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| Sep 11, 2014 at 7:04 | review | Reopen votes | |||
| Sep 11, 2014 at 10:58 | |||||
| Jan 30, 2013 at 20:26 | review | Reopen votes | |||
| Jan 31, 2013 at 15:07 | |||||
| Jan 30, 2013 at 20:09 | history | edited | A.I. | CC BY-SA 3.0 |
It was a duplicate of another question.
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| S Jan 30, 2013 at 12:40 | history | edited | CommunityBot |
insert duplicate link
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| S Jan 30, 2013 at 12:40 | history | closed |
Leon Heller Phil Frost Nick Alexeev placeholder Dave Tweed |
exact duplicate | |
| Jan 30, 2013 at 10:18 | comment | added | A.I. | I found a way to invert the LCD screen! If I remove the screen from the casing and then remove the polarized film and flip it, It's supposed to invert the screen. | |
| Jan 30, 2013 at 5:29 | answer | added | Dave Tweed | timeline score: 1 | |
| Jan 30, 2013 at 1:40 | comment | added | JYelton | I'm not that familiar with using small LCD panels to project light through. It should be possible to inverse the panel such that the liquid crystal allows digit segments to be projected and block light otherwise. That might be a good new question for you to ask; one that's specific to LCD panels and projecting light through them. Unfortunately I'm not an expert on that. | |
| Jan 30, 2013 at 1:24 | comment | added | A.I. | @PhilFrost, Please excuse me for that, I'm new to the site and I thought since my original question was not a question that the chances of It being reopened were slim, so I edited the question, realized it would take a while to reopen, then posted a new question, am i allowed do delete questions off the site? I would like to erase the old question. | |
| Jan 30, 2013 at 0:52 | comment | added | A.I. | If the pocket keychain is close range, could something similar be used (or to modify the keychain) to make it work up to 3 or 4 feet away? | |
| Jan 30, 2013 at 0:17 | comment | added | A.I. | Thanks JYelton, The LED keychain is actually pretty close to what I wanted, Do you know If something like it could be easily modified to only display the letters in light and not the rectangular background color. Thank you for being so helpful, This now seems achievable for someone like me. | |
| Jan 30, 2013 at 0:13 | comment | added | A.I. | I want it to project at most 6 inches away from the pocket watch. | |
| Jan 29, 2013 at 23:45 | comment | added | JYelton | You might buy this time projector device on eBay for $2.50 and figure out how it works. It appears to use an LED and LCD even though it advertises "laser." | |
| Jan 29, 2013 at 23:42 | comment | added | Phil Frost | Posting exactly the same question again is not the way to get people to answer your question. Next time, edit your old question, and when you do so, it will be proposed for re-opening. | |
| Jan 29, 2013 at 23:42 | comment | added | JYelton | Something that fits in the pocket is going to be limited in size, and most importantly, in available power. A simple 5mW laser pointer (great for entertaining cats) is cheap, takes 3 button cells, and can fit on a keychain. Modifying it to display useful information will require some ingenuity. For something like that, I wouldn't try using traditional laser projection techniques. You might try the same approach as in the alarm clocks. The question is how far do you expect to project the time? A pocket laser or LED system will probably only get you a few meters, at most. | |
| Jan 29, 2013 at 23:32 | comment | added | A.I. | I am new to electronics, but I am thinking of designing a laser display pocket watch, I am aware that there has been a laser watch created that displays time using lasers projected, so I wanted to base it off that. Do you think a laser is necessary or should I use LEDs If I want such a display? Thank you for being so understanding @JYelton! | |
| Jan 29, 2013 at 23:25 | review | Close votes | |||
| Jan 30, 2013 at 12:40 | |||||
| Jan 29, 2013 at 23:16 | comment | added | JYelton | There are small alarm clocks that project the time onto the ceiling. However these usually employ a bright LED, an LCD panel, and a lens to focus. Therefore, are you certain you need a laser? Example: amazon.com/Oregon-Scientific-Rm313pa-Exactset-Projection/dp/… | |
| Jan 29, 2013 at 23:13 | answer | added | Oli Glaser | timeline score: 3 | |
| Jan 29, 2013 at 23:13 | answer | added | JYelton | timeline score: 3 | |
| Jan 29, 2013 at 22:45 | history | asked | A.I. | CC BY-SA 3.0 |