On Wed, 30 Jan 2008 00:01:58 -0600, y_p_w wrote
(in article
<65bd62d1-5daa-40d9-bba5-
(e-mail address removed)>):
Apple's design uses only a few light sources using "optical guides" to
route the light to each key, and can include routing normally "wasted"
light from the backlight. I have yet to see an example outside of
Apple that doesn't glow between the key, is as thin as Apple's lit
keyboards, or comes on a notebook computer. All of the examples shown
in this thread have a glow between the keys.
I can not comment on "all the others", but I can comment on my
Macbook Pro and upon a Logitech G15. On the G15, you can see
(in a completely darkened room only) a little light coming from
other than the keycaps, from the bottom edge of the keyboard,
under the space bar, under the numeric keypad, and under the
lower-left group of programming G-keys. (Not the Function keys
btw, the G15 has a separate set of 18 keys with 3 modes to
overload them).
What is /really/ surprising abut this is that the claim about
the Apple implementation above is completely wrong. The Macbook
pro keyboard leaks light between the gaps of *ALL* the keys on
the keyboard. Adjusting the brightness up and down, even at the
lowest visible setting it is quite obvious that light is being
directed (probably intentionally) at both the key caps and the
spaces between the keys. This is noticeable in front of, above,
to either side, or from any angle other than beneath the Mac or
behind the display. In fact, I think if you need to look at the
keyboard when you type, then the Apple solution of bleeding
light through the keys like that is preferable.
I don't happen to care either way, but you are quite obviously
completely full of shit about what Apple does and doesn't do.
Your response is in fact exactly /opposite/ of the truth. IIRC,
an image link posted earlier in this thread made this effect
quite obvious as well.
That doesn't mean that no other can do exactly the same thing.
It means that if they do, they likely negotiate some sort of
royalty or cross-licensing agreement. Either other companies
have filed improvement patents on variations of this, or they
have negotiated a deal with Apple, or Apple doesn't care (I find
the latter the least likely).