|
|
Subject:
Electroluminescent and the effect on the human eye
Category: Science Asked by: lightme-ga List Price: $75.00 |
Posted:
02 Feb 2006 19:23 PST
Expires: 04 Mar 2006 19:23 PST Question ID: 440753 |
Does the frequency of electroluminescent lighting materials have a distinct measureable effect on the human eye? Why is the human eye attracted to this light source in various dark or dusk lighting conditions? |
|
There is no answer at this time. |
|
Subject:
Re: Electroluminescent and the effect on the human eye
From: knickers-ga on 03 Feb 2006 04:59 PST |
Not being an expert here, I suspect that any measureable affect is entirely dependent on the actual wavelength of light that you are talking about. On a more general note I dont think the human eye is particularly attracted to this sort of light versus any other (what is your hypothesis / evidence for this?). The human eye is extremely sensitive to any light and hence in low light conditions will naturally deviate to any light source. |
Subject:
Re: Electroluminescent and the effect on the human eye
From: lightme-ga on 03 Feb 2006 21:37 PST |
knickers-ga Thank you for your comments. My hypothesis / evidence is only of my own experience with this light source in applications and therefore I post the question looking for someone that may have experience and formal answers to my question. |
Subject:
Re: Electroluminescent and the effect on the human eye
From: stanmartin1952-ga on 04 Feb 2006 18:24 PST |
It may be like seeing a welding torch - it's hard not to look at it. |
Subject:
Re: Electroluminescent and the effect on the human eye
From: cplusplusgenius-ga on 05 Feb 2006 16:28 PST |
The main effect of electroluminescent lights or similar light source is not on the human eyes (the sensors that transform lights are located in the retina and are stimulated by all the visible light frequencies) but on the neural control system that receive the signals coming from the eyes. In fact there are many mathematical models of this system (try to search in scientific literature regarding biological systems modeling)that demonstrate that this system is derivative, in other words the system is alerted by rapid variations referring to the background conditions (lightness, contrast, spatial velocity). An electroluminescent light represents often an isolated object showing an high contrast (rapid spatial variation in lightness) respect to the background. The same thing can occour if, during a sunny day, we see a dark spot in the sky. Our attention is automatically attracted by this spot because our neural control system is derivative. This occour also if our attention is attracted by other things or while we are doing other jobs. Naturally this control system is useful in order to focus our attention on things that are "different" from the background, things that change their condition fast and that could be dangerous. Bye. |
Subject:
Re: Electroluminescent and the effect on the human eye
From: lightme-ga on 05 Feb 2006 17:54 PST |
cplusplusgenius-ga Now that is the type of answer or comments that I am looking for. How can we talk further and discuss your comment further. Unfortunately someone has made an attempt at my answer and has claimed the money and I am not sure if I will get it back, however I would be happy to pay you very well for additional information that you can give me. |
Subject:
Re: Electroluminescent and the effect on the human eye
From: myoarin-ga on 06 Feb 2006 12:07 PST |
HI Lightme, IT seems that Cplusplusgenius and Knickers have understood what your question really is about - how the eye and brain perceive light (or a light source) at dusk. The emphasis on EL in the question distracted from this and led Hedgie to pursue that subject, although it should be pointed out that the last part of the Answer also deals with this. In light of your long study of EL, I can understand that it could be your primary consideration when seeking an explanation of your "hypothesis ... only of my own experience with this light source ..." (I don't mean to sound superior in any way; that is how all of us deal with perceptions, seeking an explanation in that which we understand best.) As mentioned in the last Clarification, YOU have the option of rejecting the Answer and receiving a refund of the price. Perhaps it should also be mentioned that only Researchers, whose names appear in blue, can answer questions. Commenters' names are black, and they can only post comments and never receive payment for their postings. If the comment by Cplusplusgenius has suggested a different way to express your question, it might be an idea to post a new one. All of us here want to see questions answered to the questioners' satisifaction. Regards, Myoarin |
Subject:
Re: Electroluminescent and the effect on the human eye
From: hedgie-ga on 06 Feb 2006 23:38 PST |
Hi myoarin-ga as allways, I appreciate your thoughtful and helpful comments. In this case I beg to differ from your view that I got distracted from "the main question topic". Question is not about the neurology or psychology of vision. Question is about EL materials: do "electroluminescent lighting materials have a distinct measureable effect on the human eye?" ... Light Rays, you will find that this experiment will not " refract like .. "other light sources, therefore, the reason I asked the question". Asker has a hypothesis that EL light is somewhat different. That it behaves differently even before it reaches the eye. We know (or science knows :-) that there are indeed differences in the light sources, which we cannot see. EL sources have different spectra, (whether modified by added phosphors or not) which can be measured by instruments, but not seen, except as filtered by the eyes. For this reason I have described in detail the three steps trough which EL materials may interact with human mind, (by emmiting a photon, which will be absorbed in a retina) hoping that we can focus the issue on something which can be answered. There is lot of literature on all three steps and aspects of vision. Quite a bit of real science can apply . For example some LEDs emit coherent light; that is not used in ELs but LEDs by definition are electroluminescent http://www.answers.com/electroluminescent&r=67 My conlusion is that asker is not interested in a dialog, which would clarify the issues . For this reason I asked editors to remove my answer. Even now, when the mistake of too hasty rating was corrected, I do not consider the question well posted. I suggested and am suggesting now that asker expires the question (on this we agree) and posts a different question or questions. The point is academic, since question will probably remain unanswered anyway. Not that another researcher could not pick it up, but because most researchers expect better cooperation from askers. Cheers Hedgie |
Subject:
Re: Electroluminescent and the effect on the human eye
From: myoarin-ga on 07 Feb 2006 04:44 PST |
Hi Hedgie, Just to let you know that I "read" you and agree entirely. I tried to express that the form of the question distracted from what seems to be the direction a satisfactory answer would have to take, which was a fault of the way the question was worded. You certainly answered the question as it stands. I hope the rating doesn't still get recorded; your answer was worth a much better one. Since the price will be refunded, I hope that Lightme-ga will stay friends with G-A. Hate to see a disgruntled first-timer. Cheers, Myoarin |
Subject:
Re: Electroluminescent and the effect on the human eye
From: lightme-ga on 07 Feb 2006 19:40 PST |
hedgie-ga, myoarin-ga Thank you for your comments. As you can realize for yourself, there has not been very much research into EL and the effect on the light produced and if this has any positive or negative effects on he human eye. Elecrolumiescent produces light from frequency. It is cold light meaning there is no or very minimal power consumption as compared to any other light source. The question I ask is valid, however any one attempting to answer must be ready to dig deep. The posted reward for the answer is only the begining as I really do hope to find a research individual that I feel has the ability to perform complex research. I know there is no easy answers here, however there could be a huge reward for the right answers. Thank you for your efforts and comments, however, you are not the chosen ones. |
Subject:
Re: Electroluminescent and the effect on the human eye
From: iang-ga on 08 Feb 2006 02:20 PST |
lightme-ga It would help researchers if you were to say why you believe there's an effect to be investigated - what anecdotal or experimental evidence is there to suggest that light from an electroluminescent source is more "attractive" than any other light? >Elecrolumiescent produces light from frequency. It is cold light meaning there is no or very minimal power consumption as compared to any other light source. I don't understand the first sentence, and the second one is simply wrong - bioluminescence and triboluminescence for example. Bioluminescence might be an interesting area to look into though as it's common for insects and fish to use it to attract pray and / or a mate. There's been some research into the effects of things like wavelength and rise rate, though it's my understanding that these differentiate one species from another rather than having some inherently attractive quality. Ian G. |
If you feel that you have found inappropriate content, please let us know by emailing us at answers-support@google.com with the question ID listed above. Thank you. |
Search Google Answers for |
Google Home - Answers FAQ - Terms of Service - Privacy Policy |