HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 3/3
Dave Palmer
User Rank
Platinum
Re: Should color differentiation matter?
Dave Palmer   11/12/2012 2:07:14 PM
NO RATINGS
@TJ McDermott: Being "colorblind" doesn't mean being unable to see colors; it just means that it's more difficult to differentiate between certain colors.

I have deuteranopia, which is one of the most common forms of colorblindness.  While most people have three types of color receptors (red, green, and blue), my eyes only have receptors for red and blue.  Since I don't have specialized receptors for intermediate-wavelength colors, they don't appear as distinct to me as they probably do to you.  For example, the colors gold, light orange, and light green all look pretty similar to me.

This site has some good pictures that illustrate how colorblind people see things.

You're definitely right about labelling wires.  Whenever I have to deal with color-coded wires (red and green; blue is not a problem for me), I usually have a non-colorblind person tell me what color the wires are.  Then I attach small pieces of tape labelled "RED" or "GREEN."

I suppose that if someone wanted to make my life more difficult, they could either lie about the wire colors, or else switch my pieces of tape when I'm not looking.  Thankfully, I've managed to get along well enough with my co-workers that it's never happened.

Interestingly enough, a small percentage of women are said to be tetrachromats, meaning that they have four types of color receptors instead of just three.  That would make them better able to distinguish between colors than regular people.

TJ McDermott
User Rank
Blogger
Should color differentiation matter?
TJ McDermott   11/12/2012 12:28:20 PM
NO RATINGS
The gist of the article is about unapproved substitions, and I agree 100% with the author.  An unapproved substituion is one reason for the KC Hyatt skybridge collapse we discussed several months ago.

The specifics of the article bring up a slightly different question.  Should color be a differentiator?  I know fully well the color standards for wiring, use it in my control panel designs, even agree that such a standard makes a ton of sense.

But what about color blindness?  Somewhere between 5%-7% of the male population has some form of color blindness.  For those, labeling and positioning are the only way to differentiate wires or controls.

NadineJ
User Rank
Platinum
LOL
NadineJ   11/12/2012 11:50:18 AM
This made me laugh and a little sad.

Excuses only come up when critical thinking is absent.  I'm sure we all have stories about others but how many are willing to admit that we've done it too?

<<  <  Page 3/3


Partner Zone
Latest Analysis
Former DARPA official and Google executive Dr. Kaigham Gabriel believes sensor companies think too much like suppliers and need to bring their products closer to the consumer.
One way to keep a Formula One racing team moving at breakneck speed in the pit and at the test facility is to bring CAD drawings of the racing vehicleís parts down to the test facility and even out to the track.
Most of us would just as soon step on a cockroach rather than study it, but thatís just what researchers at UC Berkeley did in the pursuit of building small, nimble robots suitable for disaster-recovery and search-and-rescue missions.
Engineers at Festo were inspired by how a caterpillar builds its cocoon when designing its new 3D Cocooner printer.
Design engineers need to prepare for a future in which their electronic products will use not just one or two, but possibly many user interfaces that involve touch, vision, gestures, and even eye movements.
More:Blogs|News
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7 | 8 | 9


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 Course June 28-30:
Sponsored by Proto Labs
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Technology Marketplace

Copyright © 2016 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service