Editing POV display
Jump to navigation
Jump to search
Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.
The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision | Your text | ||
Line 21: | Line 21: | ||
rated in lumens, they're rated in candelas. | rated in lumens, they're rated in candelas. | ||
− | |||
Is it even possible to estimate "lumens" from the catalog information? | Is it even possible to estimate "lumens" from the catalog information? | ||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
Do you know what the difference is? Does your flashlight really | Do you know what the difference is? Does your flashlight really | ||
Line 62: | Line 46: | ||
Other LEDs I considered using in my POV display (and may re-consider for my next one): | Other LEDs I considered using in my POV display (and may re-consider for my next one): | ||
− | * $18.89 "Lamina light engine" BL-22B1-0140 : 22000 mlm at 420 mA. (this price includes the required heat sink -- price in ones from http://Digikey.com/ ). This has the most lumens per dollar I've found so far (for | + | * $18.89 "Lamina light engine" BL-22B1-0140 : 22000 mlm at 420 mA. (this price includes the required heat sink -- price in ones from http://Digikey.com/ ). This has the most lumens per dollar I've found so far (for blu |
+ | 1000 | ||
+ | e LEDs). | ||
* $8.750 Sunbrite LuxLEDs SSP-LX6144D7UC blue: 120 mA, 2500 mlm, 1800 mcd (Odd that the red Sunbrite LuxLEDs are cheaper at Newark, the other colors cheaper at Digikey.) cheapest $/lumen blue LED, except for the "light engine" | * $8.750 Sunbrite LuxLEDs SSP-LX6144D7UC blue: 120 mA, 2500 mlm, 1800 mcd (Odd that the red Sunbrite LuxLEDs are cheaper at Newark, the other colors cheaper at Digikey.) cheapest $/lumen blue LED, except for the "light engine" | ||
* $2.550 Lumex "DSP LED" 67-1876-ND: blue, 5 mm, 2500 mcd ( DigiKey ) apparently have some kind of internal chip. All colors run at 2.0 V nominal (1.5 V minimum) (rather than running on current like most LEDs. unfortunately, the data sheet doesn't suggest how much current they take -- I presume more than 20 mA). | * $2.550 Lumex "DSP LED" 67-1876-ND: blue, 5 mm, 2500 mcd ( DigiKey ) apparently have some kind of internal chip. All colors run at 2.0 V nominal (1.5 V minimum) (rather than running on current like most LEDs. unfortunately, the data sheet doesn't suggest how much current they take -- I presume more than 20 mA). | ||
* $1.600 Sunbrite "based LED" SSP-01TWB7UWB12 (441-1007-ND) blue 10 mm 20 mA 7000 mcd | * $1.600 Sunbrite "based LED" SSP-01TWB7UWB12 (441-1007-ND) blue 10 mm 20 mA 7000 mcd | ||
− | * $5.980 GM5WA06270A SMT RGB (35 mA red, 35 mA green, 35 mA blue) 3000 mcd (full color range -- apparently used for digital camera flash ?) (Digikey) | + | * $5.980 GM5WA06270A SMT RGB (35 mA red, 35 mA green, 35 mA blue) 3000 mcd (full color range -- apparently used for digital |
− | * Mouser: hi-power LEDs ( http://www.mouser.com/search/refine.aspx?Ntt=LEDs | + | 1000 |
+ | camera flash ?) (Digikey) | ||
+ | * Mouser: hi-power LEDs ( http://www.mouser.com/search/refine.aspx?Ntt=LEDs hi-power ) shows "lumens" directly -- exactly what I wanted. | ||
== further reading == | == further reading == | ||
− | |||
− | |||
Spoke-POV and propeller clocks links: | Spoke-POV and propeller clocks links: | ||
− | + | ||
* An entire discussion forum devoted to POV displays http://www.ladyada.net.nyud.net:8090/forums/viewforum.php?f=11 | * An entire discussion forum devoted to POV displays http://www.ladyada.net.nyud.net:8090/forums/viewforum.php?f=11 | ||
** In particular, lots of nice pictures http://www.ladyada.net.nyud.net:8090/forums/viewtopic.php?p=4712 | ** In particular, lots of nice pictures http://www.ladyada.net.nyud.net:8090/forums/viewtopic.php?p=4712 | ||
Line 82: | Line 68: | ||
* micro POV display http://positron.org/projects/mpov/ small enough for "glueing it to my shaved head." | * micro POV display http://positron.org/projects/mpov/ small enough for "glueing it to my shaved head." | ||
* [http://www.rickard.gunee.com/projects/mechscan/dualpic/gamesys.php "Virtual Game System - A game console with a mechanically scanned display."] can play [http://www.rickard.gunee.com/projects/mechscan/dualpic/tetris.php Virtual Tetris] by Rickard Gunée. | * [http://www.rickard.gunee.com/projects/mechscan/dualpic/gamesys.php "Virtual Game System - A game console with a mechanically scanned display."] can play [http://www.rickard.gunee.com/projects/mechscan/dualpic/tetris.php Virtual Tetris] by Rickard Gunée. | ||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
---- | ---- | ||
Line 96: | Line 74: | ||
I think so--[[User:71.234.233.163|71.234.233.163]] 18:06, 22 June 2007 (PDT) | I think so--[[User:71.234.233.163|71.234.233.163]] 18:06, 22 June 2007 (PDT) | ||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− |