On Mon, 24 Dec 2018 02:20:29 -0000, Rod Speed wrote:
"William Gothberg" "William wrote in message
news
On Sun, 23 Dec 2018 22:28:10 -0000, Rod Speed
wrote:
"William Gothberg" "William wrote in message
news
On Sun, 23 Dec 2018 17:38:42 -0000, Rod Speed
wrote:
"William Gothberg" "William wrote in message
news
On Sat, 22 Dec 2018 23:33:40 -0000, Rod Speed
wrote:
"William Gothberg" "William wrote in
message
news
On Sat, 22 Dec 2018 23:01:40 -0000, Rod Speed
wrote:
If half could actually see car lights flicker, the
designers wouldn't have designed them like that.
Economy.
Doesn't cost anymore to say double the pulse
rate so that even freaks like you can't see it.
I assume the higher switching speed needs better transistors etc.
You're wrong with the rates involved.
Funny how they don't all do it.
Because the designers can't see it and didnt bother to research
what flicker fusion thresholds are out there with you freaks.
A designer who only designs something to be suitable for himself
They aint doing anything even remotely like that.
is an idiot.
Freaks that demand that everything must be designed
for the most extreme freaks are terminal ****wits.
https://www.ledsmagazine.com/article...t-engines.html
"Human vision is adversely affected by light fluctuations at frequencies up to 200 Hz, even though people can only directly perceive fluctuations at frequencies up to about 70 Hz. The fundamentals of the sensitivity of the human eye to rapidly changing light (transient light artifacts or TLAs) as a function of frequency have been well known to science for a decade or more. Despite this, the lighting industry has so far limited itself to only characterizing light sources over the range of frequencies which the human eye can perceive directly. This range is below 100 Hz. However, it is well documented that human visual performance is degraded by the presence of light fluctuations at frequencies in the range from 100 to 200 Hz. Here we will describe a new flicker metric/tool that includes consideration of higher frequencies and further discuss an AC-LED light engine relative to performance against the new metric."