HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Page 1/3  >  >>
tekochip
User Rank
Platinum
Re: Great innovation
tekochip   8/28/2013 3:32:39 PM
NO RATINGS
That's a really clever technique.  I worked with a pinball company (OK, there's really only ONE pinball company), and their solution was to mix additional colors in with the white LEDs to make them look a little less ghostly.  Reflectors were also used to warm the white LEDs up a little bit.  As you can imagine there are quite a few bulbs in a pinball machine and finding a solution was really important.
 
White LEDs did make great replacement for flashers, which was really a 12V bulb hit with 24V, as you can imagine, they wear out pretty fast.


Ann R. Thryft
User Rank
Blogger
Re: Great innovation
Ann R. Thryft   8/28/2013 12:20:28 PM
NO RATINGS
I don't remember the details, but I have seen ads about better, more naturally-colored LED-based light bulbs recently, so there's hope.

Charles Murray
User Rank
Blogger
Re: Great innovation
Charles Murray   8/27/2013 6:12:33 PM
NO RATINGS
I agree, Ann. Are those LEDs bright? Yes. Pleasant? No.

Jack Rupert, PE
User Rank
Platinum
Re: Great innovation
Jack Rupert, PE   2/25/2013 3:45:11 PM
NO RATINGS
I intend to do something similar, Charles.  At the moment, I'm in a temporary location, but when if the lighting is similar when I get a permanent home, I expect to be getting myself a desklamp that will throw some warmer light on my work area.  My previous company actually supplied halogen desklamps for that purpose and one of the part-time student admins who works for me already brought in an incandescent light for this purpose.

Gorski
User Rank
Platinum
Warm LED Light
Gorski   2/9/2013 3:44:01 PM
NO RATINGS
I think this is a step in the right direction. Dimmable LED lights that are "warm" would be a great product for the home, much less cars. I have many dimmable lights in my home. Alas, all are incandescent. The dimmable LEDs available have a very narrow "dimming range."

 

GORSKI PE

Ann R. Thryft
User Rank
Blogger
Re: Great innovation
Ann R. Thryft   2/6/2013 2:52:20 PM
NO RATINGS
Those white LED bulbs can cause eyestrain over long periods--they're just too harsh, although ideal for short periods of intense scrutiny when looking at fine detail.

Charles Murray
User Rank
Blogger
Re: Great innovation
Charles Murray   2/4/2013 7:31:46 PM
NO RATINGS
Yes, choice is good, Ann. I have a cold white LED bulb in my office. About a year ago, I unscrewed it and replaced it with an incandescent.

Ann R. Thryft
User Rank
Blogger
Re: Great innovation
Ann R. Thryft   1/28/2013 12:12:21 PM
NO RATINGS
It's not just the old-fashioned fluorescent bulbs that have that awful greenish glow but also the CFLs--those were the ones I was referring to. I agree with William K--there should be variety and choice, not only for different people, but for different uses. The cold white light of LEDs is great for seeing fine details.

William K.
User Rank
Platinum
Re: "warmth" added to led lights.
William K.   1/26/2013 8:43:41 PM
NO RATINGS
Jack, it seems that you are correct. I forgot about our legislative body's decisions that were made based on all of those emotions. They seldom let reason and intellect interfere with their process, and so now we are stuch with that pale orange glow lighting.

Forgive me, I was thinking rationally. I hope that the lighting police are not on their way just yet.

Jack Rupert, PE
User Rank
Platinum
Re: "warmth" added to led lights.
Jack Rupert, PE   1/26/2013 5:30:25 PM
NO RATINGS
Unfortunately, William K. you are only partially correct.  This wouldn't even be such an important discussion if we were allowed to choose the lighting type we wanted based on color, preference, costing, efficiency or whatever is most important to the individual.  However, the free market was stepped on with others telling us what those priorities should be...and which "better mousetrap" we HAVE to buy.

Page 1/3  >  >>


Partner Zone
Latest Analysis
Watch as we teardown Amazon's Fire Phone -- the company's first smartphone, designed to compete with iOS, Android, and Windows Phone devices.
Lithium-ion batteries will soon back up the power grid on the Hawaiian island of Kauai, providing the stability to handle intermittent power fluctuations from renewable energy sources.
A relative newcomer to the 3D printing market has developed a 3D printer that can use five different materials in multiple colors for customized creations.
These free camps are designed for children ages 10 to 18. Attendees are introduced to 3D CAD software and shown how 3D printers can make their work a reality. Many classes were nearly 50 percent girls and 50 percent boys.
Take a look through these film and TV robots from 1990 through 1994.
More:Blogs|News
Design News Webinar Series
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
5/13/2014 10:00 a.m. California / 1:00 p.m. New York / 6:00 p.m. London
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Aug 4 - 8, Introduction to Linux Device Drivers
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: August 12 - 14
Sponsored by igus
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service