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TOPIC: Is Yellow Less Bright Than Most Other Colors?
Is Yellow Less Bright Than Most Other Colors? 4 days 5 hours ago #45491
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I got a 12W+ yellow, and it seems to be less bright than several other colors. Do you who have a Saberforge yellow and compared it with other Saberforge LED colors? I am not saying yellow is not bright, rather I am saying it appears to be less bright than other colors. It is still bright nonetheless.
Thoughts? |
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Is Yellow Less Bright Than Most Other Colors? 4 days 3 hours ago #45496
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Can't say for sure as I am still awaiting my yellow blade and a couple other colors. That being said, Yellow can look a bit 'washed out' in normal room lighting. In the dark, one would assume same LEDs would have same light output and look as bright unless there was something wrong with the LEDs or the batter, etc.
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Is Yellow Less Bright Than Most Other Colors? 4 days 1 hour ago #45520
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Not really, some LEDs are brighter than others, it's not all the same.
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Is Yellow Less Bright Than Most Other Colors? 4 days 1 hour ago #45526
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Battery fully charged?
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Is Yellow Less Bright Than Most Other Colors? 3 days 23 hours ago #45534
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I can't say to the "vs other colors" but my 12W+ yellow seems plenty bright on it's own.
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The following user(s) said Thank You: Execute66
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Is Yellow Less Bright Than Most Other Colors? 3 days 16 hours ago #45593
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Execute66 wrote:
Not really, some LEDs are brighter than others, it's not all the same.
Do you require input, or do you already know the answer to your inquiry? Help me understand this query.
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Is Yellow Less Bright Than Most Other Colors? 3 days 15 hours ago #45612
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Technically speaking, yellow is closer to the center of the light spectrum that human eyes can see, so it should be one of the brighter ones. That's setting aside LED construct eccentricities. I'm just speaking in terms of colours and light.
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Is Yellow Less Bright Than Most Other Colors? 3 days 14 hours ago #45629
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=Ottomatix= wrote:
Execute66 wrote:
Not really, some LEDs are brighter than others, it's not all the same.
Do you require input, or do you already know the answer to your inquiry? Help me understand this query.
Best with an example. In my opinion, the Cyan 12W+ or the White 12W+ appear brighter than the yellow 12W+. So my question is, is Yellow less bright based on your experience/comparison? I am not saying yellow is not bright per se, I am saying it appears less bright than some other colors. So rather than what "should be" or what not, what is your actual experience (assuming you own a collection of SF LED), thus qualified enough to comment based on your own experience? I would like to know from first hand experience. |
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Is Yellow Less Bright Than Most Other Colors? 3 days 13 hours ago #45633
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The brightness, as it appears....
Red > Green > Amber > Blue There are both scientific and technical reasons as to why one color would be brighter then another. On top of that is eyesight, both conditions and general eyesight accuracy (do you have crappy vision etc). I have a hero saber, and turning the individual LEDs one 1 at a time, the above is how it appears. Obviously black is the least bright color and white is the most bright. I would expect a white saber to appear brighter then any color. Cyan has a fair amount of white in it, so I could see that being brighter then yellow or Amber. |
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Is Yellow Less Bright Than Most Other Colors? 3 days 13 hours ago #45635
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Also when it comes to mixing light, not just paint or pixels (has light too), the more you mix the closer to white you get.
A blue and a green led will be closer to white then just a blue or just a green, or 2 blues or 2 greens. All 4 colors combined make white (off white). Like power rangers, the white is the most powerful.... |
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The following user(s) said Thank You: Execute66
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Is Yellow Less Bright Than Most Other Colors? 3 days 13 hours ago #45649
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I'm a few sabers short to make a qualified response. I hope someone is able to give you the answers you seek. MTFBWY Always.
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Is Yellow Less Bright Than Most Other Colors? 3 days 9 hours ago #45688
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Thanks, I might do a video comparison in the dark to show more colors. Eventually I aim to have one color each out of the SF palette (not including Tier 4). I like the yellow, it's a very warm color.
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Is Yellow Less Bright Than Most Other Colors? 3 days 2 hours ago #45715
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Mihoshi wrote:
The brightness, as it appears....
Red > Green > Amber > Blue On my Hero, Amber is by far the weakest and R, G, and B are all fairly comparable.That might be something with my lens though; I'll have to check it out tonight. Speculation time! It's my specialty. As for why the yellow may be less bright compared to other 12W/12W+ colors, it may be a matter of properly mixing the colors. For most of SF's mixed colors precision doesn't matter, since people's idea of purple, pink, and various shades of blue/green may vary. For that reason you don't have to fine tune the color mixing that well. Yellow, however, is a very well established color. Since it's primary, people have pretty much the same idea of what it should look like. Because of that, the Red LEDs cannot overpower the Green LEDs and vice versa or the blade color will look clearly off. For that reason, if the red is inherently brighter than the green, the power across the red LEDs would have to be reduced. Alternately, it could just be a perception thing. Since yellow light isn't all that uncommon, it may just be that our minds may pass some of its brightness off as ambient light. |
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The following user(s) said Thank You: Execute66
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Is Yellow Less Bright Than Most Other Colors? 2 days 20 hours ago #45788
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Thanks, interesting. I might get another yellow saber one day from SF to contrast. So you are saying it is realistically possible to observe yellow as appearing less bright than some other colors.
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Is Yellow Less Bright Than Most Other Colors? 2 days 19 hours ago #45803
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Well, here's a graph of LED CCTs (Blackbody color temperatures).
Essentially, you can think of it as the color of a chunk of steel heated to a certain Kelvin temperature. It starts black, turns red, shifts to yellow, then white, then blue as it gets hotter. For some reason they chose to use this a s a metric for light color. There are studies that correlate higher color temperatures to higher perceived brightness. Here are some abstracts:
Effects of correlated color temperature on spatial brightness perception
Jiaqi Ju, Dahua Chen andYandan Lin The relationship between lamp color characteristics and brightness perception is not well known. In this study, nine lighting environment with correlated color temperature (3000 K, 5000 K, and 8000 K) and illuminance (1000 lx, 300 lx, and 100 lx) were created. Both the side by side visual matching and spatial brightness scaling experiments are designed to verify the effects of correlated color temperature on spatial brightness perception. The results of the study show that lighting with high correlated color temperature will have stronger spatial brightness perception than lower ones. © 2011 Wiley Periodicals, Inc. Col Res Appl, 2011
Effect of Color Temperature on Apparent Brightness
R. E. Harrington Two screens viewed side by side were illuminated by radiations approximating those of blackbodies of different color temperatures and matched in brightness at photopic levels. A group of 73 observers found that less light of the higher color temperature was needed to produce equality of brightness than would be required by the CIE normal observer. The average gain in apparent brightness was 1 percent per 100°K color temperature difference in the range 5400–6300°K. The gain decreases with the age of the observer. When 27 of the observers re-matched the screen colors using a “flicker” method, no gain in apparent brightness was obtained. Thus the CIE normal observer properly predicts equality of brightness under the experimental conditions used if the observer is allowed to respond only to brightness (flicker method). If the observer has time to color adapt, as in continuous side by side screen viewing, an increase in the apparent brightness of the higher color temperature screen results. © 1954 Optical Society of America I'm not a psychologist, but I think it's within the realm of possibility. Still just speculation though. |
Is Yellow Less Bright Than Most Other Colors? 2 days 17 hours ago #45815
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Holy crap, just ignore that. The whole drive home from work the only thing that came to mind when thinking about my explanation is "High School prompt level bullshit answer." It's not logically sound enough for me.
In this picture Yellow seems duller. I think that's concrete enough for my tastes :/ |
Is Yellow Less Bright Than Most Other Colors? 2 days 16 hours ago #45832
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^^ That's what I am trying to get at. Actual comparison across several LED of the same make, given identical blades and open emitters.
I find these color comparisons fascinating (under same make LED, same blade, same room conditions, open emitters). |
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Is Yellow Less Bright Than Most Other Colors? 2 days 1 hour ago #45951
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Snakeeyz99 wrote:
Holy crap, just ignore that. The whole drive home from work the only thing that came to mind when thinking about my explanation is "High School prompt level bullshit answer." It's not logically sound enough for me. This photo is great. Are each of these different colors produced by a dedicated12w+LED? Obviously#5 is yellow, am I correct?
In this picture Yellow seems duller. I think that's concrete enough for my tastes :/ |
Is Yellow Less Bright Than Most Other Colors? 2 days 47 minutes ago #45957
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Snakeeyz99 wrote:
Holy crap, just ignore that. The whole drive home from work the only thing that came to mind when thinking about my explanation is "High School prompt level bullshit answer." It's not logically sound enough for me.
In this picture Yellow seems duller. I think that's concrete enough for my tastes :/ You know what is interesting about this picture? While, yeah the yellow does seem duller than the other colors, if you look at the details in the picture it actually lights up the blanket as much if not more than many of the others (more visible details/the blanket is illuminated further down the picture). So like it is duller, and simultaneously brighter. *Also my love of yellow might bias me. 
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Is Yellow Less Bright Than Most Other Colors? 2 days 22 minutes ago #45959
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"Duller" is not the right word. More like "paler". It isn't a "strong" yellow. It is certainly bright. Judging from this image, anyway.
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