On Mon, 24 Dec 2018 23:07:07 -0000, Rod Speed wrote:



"William Gothberg" "William wrote in message
news
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.

You're free to only buy what you like to use.

And you're free to be ignorant and believe that only a very small number of people are affected.

However, I'm not free to make everyone else's car have decent lighting. I have to put up with inferior **** by designers without a ****ing clue how the human eye works.

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."