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Enlightened
Could anyone point me in the direction to get more information on a PWM controller for some LEDs? How do you control it to control the output? Also, where can I find plans on how to build one? I can hold my own soldering and stuff, but never got much into the theory on designing circuits. Is it really that much more effective than a plain potentiometer, assuming that I could find one in the correct value?
On a slightly different note, I've ordered a lot of cheap LEDs off of ebay. Assuming that they are what I want, I'm a little concerned about the viewing angle. I know that the more rounded the LED tip, the narrower the beam. These MAY have a 10 degree viewing angle (it was listed as "VIEWING ANGLE:± 10°"). If that's the case, I'll need to widen that out for my use. Would sanding down the end help with that? How much can I sand it before causing a problem with the LED that keeps it from working?
edit: oh yeah. in regards to the last question, is it possible to sand the LED so that instead of projecting a cone, it does more of a flat beam.
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(_______)
Something shaped like that sort of.
On a slightly different note, I've ordered a lot of cheap LEDs off of ebay. Assuming that they are what I want, I'm a little concerned about the viewing angle. I know that the more rounded the LED tip, the narrower the beam. These MAY have a 10 degree viewing angle (it was listed as "VIEWING ANGLE:± 10°"). If that's the case, I'll need to widen that out for my use. Would sanding down the end help with that? How much can I sand it before causing a problem with the LED that keeps it from working?
edit: oh yeah. in regards to the last question, is it possible to sand the LED so that instead of projecting a cone, it does more of a flat beam.
._______
(_______)
Something shaped like that sort of.