The newest blue, white and green LEDs are static sensitive, and typical ESD
precautions are required during handling and assembly. Once installed as
part of a circuit, they should be resistant to damage. An interesting
question; lemme check with our engineers in Japan. I'll post when (if)
they respond. What is the voltage present at the tube?

Spatial distribution is going to be your greatest challenge, and you'll need
to design a multi-surfaced PCB to achieve the required viewing angle spec.

BTW, the newest LEDs have an intensity of 5 cd. New traffic signal designs
use only a few of these vs. hundreds of the "old" (last year's) ones.

I'm not well-versed in aviation lighting requirements, but I believe that
your green spec is a little towards the blue. Should not be a problem, you
can get "green" from 502 to 525 nm. Only one choice with one red, though,
at 625 nm dominant and 635 nm peak. Its the hue difference between
incandescent auto stoplamps and the LED center one. Perhaps OK for an
Experimental, but, again, I'm no expert.

Bernie
(remove my age to Reply)


pekka1510 wrote:

Hello fellow aviators,

Does anyone has deeper knowledge of the following thing?
I have been thinking to modify Strobe/Nav.Light system. Halogen bulbs
will be replaced with ultra bright leds.
Benefits; low current draw, cheaper than incandenscent bulbs, long
life time.
Low points; narrow beam, mechanically challenging .... BUT....

Does semiconductor LEDs work near with strobe flashtubes (HIGH
VOLTAGE)??? I am looking ElectroMagneticCompatibility.

Anyone experiences or recommendations, please?

regards,
pekka, FL