Embedded Systems Conference
Breaking News
Comments
Oldest First | Newest First | Threaded View
LarryM99
User Rank
Author
LEDs quickly taking over
LarryM99   1/29/2014 4:10:02 PM
NO RATINGS
I have noticed a sharp increase in LED lighting in cars recently. It's almost to the point where you can guess which cars in a line (I live in SoCal, so I get to examine long lines of cars a lot...) are new. I suspect that costs have dropped on them enough that they can be used this widely. The next step is to start seeing more innovative use of LED lighting in homes.

junko.yoshida
User Rank
Author
Re: LEDs quickly taking over
junko.yoshida   1/29/2014 6:55:51 PM
NO RATINGS
I agree, Larry. I find the use of LEDs "inside a car" fascinating. It does create a sort of interesting ambiance...

DrQuine
User Rank
Author
Re: LEDs quickly taking over in cars
DrQuine   1/29/2014 8:54:09 PM
NO RATINGS
Cars are early adopters for LED lighting because reliability is very important, the space to illuminate (inside) is relatively small, and LED lights are very compact. Also, the basic power system in a car is 12 volts DC which works well with LED lights. In contrast, home power is 120 volts AC which requires power conversion to run the lights. Finally, the car manufacturers have control of the environment. Home sales require persuading 100 million people (one by one) to switch from something that they've used for years. One persuaded car designer can create a change that impacts millions of users. As the track record is proven in cars, people may be prepared for LED use at home (if they're not burned by their early failure experiences with CFL bulbs). Maybe one benefit for home use is the ability to dial-a-mood not only in brightness but also in color.

junko.yoshida
User Rank
Author
Re: LEDs quickly taking over in cars
junko.yoshida   1/29/2014 9:54:34 PM
NO RATINGS
DrQuine, thanks for your comprehensive explanation. I used to think that because carmakers tend to be cost conscious, they would be the last to embrace LEDs. But you made all the strong cases for the use LED lights in cars. Makes sense.

You did mention in your comment:

Maybe one benefit for home use [LED Lights] is the ability to dial-a-mood not only in brightness but also in color.


Actually, since the first time when I wrote an LED lighting stoy, I was convinced that would trigger the widespread usage. But so far, it hasn't happened...I wonder why.

Etmax
User Rank
Author
Re: LEDs quickly taking over in cars
Etmax   1/30/2014 3:21:04 AM
NO RATINGS
I think one of the biggest drivers in cars might be that they don't need to design in accessability (not that car manufacturers have done much in that way in the recent past. backlighting with globes can be an expensive service issue. I've spent as much as $50 getting a 10c globe replaced because the labour is horrific. with LED's they should exceed the life of the vehicle. Also I'm not sure LED tail lights and indicators come out cheaper than their incandescent counterparts, but the savings in metalwork and no need for lenses will certainly put a dent in that additional cost. I am glad to see that some makers have finally realised they need diffusers.

DrQuine
User Rank
Author
Re: LEDs quickly taking over in cars
DrQuine   1/30/2014 7:16:22 AM
NO RATINGS
I'm guessing that the practical barrier to home adoption of the features of LED lighting (dimming and color changes) is that people have moved from living in the moment with each other and long family dinners to snacks on the go and watching TV while they multi-task on their iPad. They're not willing to pay $60 for a "novelty" light.  They'll probably succeed first in products like make-up mirrors that adjust for indoor incandescent / indoor fluorescent / outdoor sunlight color balance. A niche product that takes advantage of the technical opportunity.



Radio
LATEST ARCHIVED BROADCAST
As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Like Us on Facebook
Special Video Section
The LTC®6363 is a low power, low noise, fully differential ...
Vincent Ching, applications engineer at Avago Technologies, ...
The LT®6375 is a unity-gain difference amplifier which ...
The LTC®4015 is a complete synchronous buck controller/ ...
10:35
The LTC®2983 measures a wide variety of temperature sensors ...
The LTC®3886 is a dual PolyPhase DC/DC synchronous ...
The LTC®2348-18 is an 18-bit, low noise 8-channel ...
The LT®3042 is a high performance low dropout linear ...
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
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 ...