Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
Page 1 / 2   >   >>
Larry.Cormier1
User Rank
Author
re: Solid-state lighting coming into focus
Larry.Cormier1   3/28/2011 1:15:51 PM
NO RATINGS
The mercury in CFLs is more than offset by the reduction in airborne mercury(a worse form) savings in energy production (as compared to tungsten lights). And, how do you know "the vast majority" are not recycled? When LEDs become the dominant light source, will we then have a low voltage DC wired through our houses for light fixturing, eliminating any need for LED bulbs with extra circuitry?

Code Monkey
User Rank
Author
re: Solid-state lighting coming into focus
Code Monkey   3/25/2011 9:25:23 PM
NO RATINGS
I'll be glad to see CFLs go. Each dead lamp is mercury-containing hazardous waste (exempt from RoHS of course) with the vast majority thrown straight into the trash.

Raymond.Rogers_#1
User Rank
Author
re: Solid-state lighting coming into focus
Raymond.Rogers_#1   3/25/2011 8:38:19 PM
NO RATINGS
Your right except: When the real energy supplies start costing more, then efficiency and low usage starts paying for itself. It does very little good to rant and rave about energy usage or dependency; until the cost is reflected in prices. It might buy votes to keep energy prices low but it's a disservice to our children. Ray Ray

lulala1234
User Rank
Author
re: Solid-state lighting coming into focus
lulala1234   3/25/2011 6:45:38 PM
NO RATINGS
Ga supply will be the ultimate limiting factor.

MeirG
User Rank
Author
re: Solid-state lighting coming into focus
MeirG   3/24/2011 11:43:20 AM
NO RATINGS
Mr. Stephan Ohr of Gartner might not be aware of it, but "Ohr" in Hebrew means "light"!

pixies
User Rank
Author
re: Solid-state lighting coming into focus
pixies   3/23/2011 8:07:10 PM
NO RATINGS
I do not think LED will lead to energy savings. Although LED is a lot more energy efficient per unit, as the cost of LEDs comes down, people will find a lot more uses for it, therefore dramatically increase the number of units installed. The safety cloth is a good example. Same argument was made for paper when computer became widely accepted, but people end up using a lot more paper.

R_Colin_Johnson
User Rank
Author
re: Solid-state lighting coming into focus
R_Colin_Johnson   3/23/2011 1:01:09 AM
NO RATINGS
You are right except for one caveat--the environment. Every day I hear of a new solution to the "barrier film" problem--today it was nanoparticles that fill-in the pores which allow moisture and oxygen to spoil OLEDs on plastic substrates. Unless one of these "breakthroughs" actually does solve the barrier-film problem, OLEDs will never get printed on web presses, but will always need glass substrates (and thus will never achieve price parity with fluorescent).

R_Colin_Johnson
User Rank
Author
re: Solid-state lighting coming into focus
R_Colin_Johnson   3/23/2011 12:55:12 AM
NO RATINGS
You may have a point, especially for low-voltage AC applications, but the majority of development work today is using conventional LEDs and DC drivers.

R_Colin_Johnson
User Rank
Author
re: Solid-state lighting coming into focus
R_Colin_Johnson   3/23/2011 12:45:21 AM
NO RATINGS
Luminous output is catching up fast--in fact by 2012 advanced gallium nitride LEDs are predicted to become the brightest light source on the planet--even brighter than arc lamps. The price, however, is going to come down gradually as volume ramps up.

R_Colin_Johnson
User Rank
Author
re: Solid-state lighting coming into focus
R_Colin_Johnson   3/23/2011 12:43:46 AM
NO RATINGS
The thing I like about the LED luminares is that their light quality is better than fluorescents--at least in the models designed to provide "warm" light. Before I use a CFL, I have to judge whether I can put up with poor light in that location. High-end LEDs rival halogen. But, as you say, the price has got to come down. I'd guess that $10 a bulb would convert most people and $5 the rest.

Page 1 / 2   >   >>


Radio
NEXT UPCOMING BROADCAST
Why Connect a Car?
May 11, 1pm EDT Monday
Overview: Battle-hardened veterans of the electronics industry have heard of the “connected car” so often that they assume it’s a done deal. But do we really know what it takes to get a car connected and what its future entails? Join EE Times editor Junko Yoshida as she moderates a panel of movers and shakers in the connected car business. Executives from Cisco, Siemens and NXP will share ideas, plans and hopes for connected cars and their future. After the first 30 minutes of the radio show, our listeners will have the opportunity to ask questions via live online chat.
Top Comments of the Week
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Special Video Section
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...