Again, those are for room illumination, and are still significantly larger than what would fit in a notebook. If you're referring to the Microstar, the steel sheath is not a heat sink. It is a transmissive cooling element doubling as a package.
Ah, great: Your leading rhetorical argument is "You used the wrong terminology, ergo I must be right"
You seem to miss my point: A single led, even a "high powered" 1-watt LED (such as the microstar) needs help to dissipate heat. If you consider such an LED a "room illuminating" LED (inferring it's about the lighting power of a normal lightbulb), you're way off track.
I'm not sure why this has to be like pulling teeth with you. It's a ludicrous assertion about heat sinks being needed to illuminate a 1.5" logo.
You do know that LED's are directional, and unless you use high powered LEDs to illuminate it properly, it will not light up as much as the logo does now, and further, it will not light up consistently, unless you use several.
Many small electronic devices with screens are LED backlit--without heat sinks.
Sorry, but unless you want the logo to be an actual screen, then your argument is moot, as you cannot compare the two directly.
If you own a recent Apple notebook, the 13"+ panel in it is backlit by LEDs--
without heat sinks.
Yes. It's not a flashlight.
LOL, a flash light with a single diode is seldomly really bright, unless you look directly into it. The thing is, you want to use a single, low powered diode (a la the one on the mag safe) to light up the entire logo, not recognising how much power is "lost" when you dissipate the light to try and illuminate the entire logo.
It's not. It also has no heat sink.
You think you can get that assembly inside the screen and illuminate the entire logo evenly with that diode?
Using ten of them would be pointless, since there are other, lower-power means to do so,
Of course there is: Using the display's backlight, for one.
but ten such LEDs would be more than sufficient.
I highly doubt that – especially considering the light has to spread out the light on a matt, frosted surface.
Yes. That does not necessitate a heat sink, which is a large apparatus requiring air movement--neither of which is compatible with a notebook lid environment.
Or water, or other things which can connect and dissipate the heat even further.
Moving heat away from the device would be accomplished, for the last time, by transmissive or radiative cooling from the package itself, sans heat sink. Just let it go. There is no face to be saved at this point.
Well, I'll let it go when you realise how little light even a 1w "high powered" LED gives when the light is dissipated (and no, don't give me any crap about me using the wrong word here as well, and that you'd prefer to use "refraction" or some other terminology. The core of what I say should be clear enough. )