| ??? 03/02/05 00:06 Read: times |
#88826 - Luxeon heatsinking Responding to: ???'s previous message |
Russell Bull said:
My led man also had some Luxeon leds and some lower cost substitutes - heat is a big problem for the high power leds - just look at the specs. The sample was mounted to a special aluminium substrate for heatsinking. I dare say this stuff is not cheap I heard that Luxeon would not sell just bare LEDs; you had to buy them on the special Luxeon substrate - either that, or you had to have your own substrate design fully evaluated & signed-off by Luxeon. Obviously, this was because Luxeon knew what a really big issue this really is, and knew that customers would not fully appreciate it and end up frying the LEDs due to inadequate heat management - and then blame Luxeon for making unreliable LEDs! Dunno if this is (still) true. |
| Topic | Author | Date |
| Further thoughts on large LED displays | 01/01/70 00:00 | |
| Practical findings | 01/01/70 00:00 | |
| I'd agree | 01/01/70 00:00 | |
| cost... | 01/01/70 00:00 | |
| Except | 01/01/70 00:00 | |
| Heatsinking | 01/01/70 00:00 | |
| Luxeon heatsinking | 01/01/70 00:00 | |
| Much brighter discrete LEDs | 01/01/70 00:00 | |
| 5 x 8 matrices | 01/01/70 00:00 | |
| size | 01/01/70 00:00 | |
| Contradictory requirement! | 01/01/70 00:00 | |
| This works | 01/01/70 00:00 | |
| "spider" LEDs are cool | 01/01/70 00:00 | |
| but that requires | 01/01/70 00:00 | |
| ...and also... | 01/01/70 00:00 | |
| track width | 01/01/70 00:00 | |
| 1 mm track | 01/01/70 00:00 | |
| Display of LED problems | 01/01/70 00:00 | |
| color code | 01/01/70 00:00 | |
Big sign | 01/01/70 00:00 |