h*****o
发帖数: 420 | 1 LEDs are available in a variety of colors. While popular colors include red,
yellow and green, one of the most difficult colors to create is white. In
fact, it is currently not possible to create pure white for mass production.
Most LED flash lights or light bulbs today that are white in color are
actually not pure white, but whitish-blue. | g******u
发帖数: 3060 | 2 wrong.
White LEDs are made simply by mixing different colors, you can get pretty
much any color temperature now with LEDs.
whitish-blue is a cold color temp, you can get yellowish-white by mixing
multiple different LEDs. | h*****o
发帖数: 420 | 3 谢谢阿
The LED viewing angle refers to the angle at which we view a sign. When we
look at an LED straight on, it is at full brightness. As we view the LED
from different directions, the brightness changes. This is typical for all
LED signs, but some have a wider viewing angle, allowing we to see more of
the image
【在 g******u 的大作中提到】
: wrong.
: White LEDs are made simply by mixing different colors, you can get pretty
: much any color temperature now with LEDs.
: whitish-blue is a cold color temp, you can get yellowish-white by mixing
: multiple different LEDs.
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