Your point wrt LEDs only having limited directional output is important, for
most of the commonly available types.
It was easily seen that filament lighting was omnidirectional, and very
evenly dispersed by internal coatings applied to the envelopes.

The common T-1-3/4 LED is essentially good for a panel indicator, not a
space illuminating/lighting device.
Even the more powerful 1W and larger devices wouldn't throw any light if not
for the lenses and a good reflector, The reflector area needs to be about
30-50x that of the LED lens to throw much light for any distance
(counterproductive for a compact design).. and then the results are a bright
spot surrounded by a much dimmer halo.
Also, the higher output devices need to be attached to heatsinks.

The EE Times article image is half-assed, at best, and where do they get
writers/reporters today? They can't provide a link to go directly to the
manufacturers' products that they report on, but instead only provide a link
so you can go look it up yourself.

http://www.osram.com/osram_com/News/..._Advanced.html

This fuzzy image looks like an artist created it.. it might be expected that
the actual construction materials are clear.. I just hope it's not glass,
because every simpleton already knows that glass production is destroying
the planet.
It sorta looks like a hemisphere of LEDs and a reflector/diffuser over it.
There doesn't appear to be any obtrusive heat sinking like the flying saucer
shapes I've seen in the stores lately.
There you have it.. these lights will pay for themselves. Step right up,
folks.
This here is a new Dimension.

The listed efficiency of a 75W incandescent is shown as Zero.. but it's
actually 100% or more when it's turned off, and it might only cost $1
(although I regularly see them for lower prices).

So, maybe this is the root issue, that people today are too GD lazy to turn
off lights when they're not being used (doesn't matter that the govt has
strongly recommended it, for years now).

If the efficiency of a 75W IC lamp is zero, then watt about a 100W.. minus
25?
It's already been established that the heating value (of the mostly infrared
light) from IC lamps will reduce home heating system loads.

The Chinese (government-backed) factories could likely tool up within a
couple of weeks to closely copy this lamp, or a looky-like the same, and
flood the market.

Since few people are aware of the disclaimer that comes with nearly every
poduct produced today (and for recent decades).. "Specifications subject to
change".

Might wanna get the extended warranty on these new lights.. the "limited"
package warranty might look like swiss cheese.

One of my curiosities will be how tolerant the new LED lamps will be of line
voltage spikes/surges, regardless of what the predicted lifetimes are.

--
Cheers,
WB
..............


"Arfa Daily" wrote in message
...


Today, this dropped into my email

http://www.ledlighting-eetimes.com/e...s_id=222907475

Looks as though it might address some of the points I made, particularly
in regard to the (typically) non-omnidirectional light from a LED lamp. I
had long wondered why the cooling core for the LEDs was not made
spherical, so that the light would be omni.

Arfa