ultraljubičaste.

aha
nasao sam neka upozorenja na netu u vezi toga.
nasao sam na netu ovo:
UV-A = 315 to 400 nm.
345 to 400 nm = used for "Black light" effects.
315 to 345 nm = are used for suntanning.
UV-B = 280 to 315 nanometers. Hazardous! Largely responsible for sunburn.
UV-C = 200 to 280 nm. Dangerous! Used to kill germs.
Vacuum Ultraviolet - 10 to 200 nm

dakle neka podrucja UV su opasna.
e sad ako te led diode zrace black light onda nisu opasne.
narucicu besplatne uzorke sa www.vishay.com pa cu vidit kako izgleda.

Gujo, pa moze li to onda fotoplocicu da osvjetli ?
Imam cijelu skalameriju od jedno 5 kg od zivine sijalice i rado bih to zamijenio iako radi pos'o

evo ti spisak "poznatijih" ledara iz tog dela spektra:

RLT350-30, 350 nm, 30 µW @ 20 mA, 5 mm clear epoxy, 30° viewing angle,
RLT350-TO-18, 350 nm, 15°, 50 µW @ 20 mA, TO-18 w. lens, Z-diode,
RLT360-0.5-10, 360 nm, 500 uW at 20 mA, 10°, 5 mm clear epoxy,
RLT360-0.5-15, 360 nm, 500 uW at 20 mA, 15°, 5 mm clear epoxy,
RLT360-1.5-30-3CC, 360 nm, 1.5 mW at 3x20 mA, 3 chips, viewing angle ~30°, 5 mm clear epoxy,
360-PLCC2-120, 360 nm, 500 uW at 20 mA, 120°, SMD PLCC, 2.85 x 3.60 x 2.00 mm³,
NS365L-5CLA-2, 365 nm, 0.4 - 0.6 mW at 20 mA, 10°, TO-46 ball lens,
RLU0408N65, 365 nm, 4..7 mW at 80 mA, 8x8 mm² metal SMD,
UVLED365-10, 365 nm, 1.4 mW at 20 mA, 10°, TO-46 ball lens,
RLT365-TO-18, 365 nm, 15°, 400 µW @ 20 mA, TO-18 with lens,
RLT365-525, 365 nm, 30°, 850 µW @ 20 mA, 5 mm clear epoxy,
RLU365-1.4-30, 365 nm, 1.4 mW @ 20 mA, 5 mm clear epoxy, 30° viewing angle,
NS370L-5CLA-4, 370 nm, 0.8 - 1.2 mW at 20 mA, 10°, TO-46 ball lens,
RLS-UV370E, 370 nm, 1 mW @ 20 mA, 30°, 5 mm clear epoxy,
RLS-UV370, 370 nm, 500 uW @ 20 mA, 15°, TO18 with cap lens,
RLS370SMD0805, 370 nm, 1 mW @ 20 mA, 120°, SMD 0805,
RLU370-1.7-30, 370 nm, 1.7 mW @ 20 mA, 5 mm clear epoxy, 30° viewing angle,
RLT370-TO-18, 370 nm, 15°, 400 µW @ 20 mA, TO-18 w. lens,
RLT370-10, 370 nm, 0.75 mW @ 15 mA, TO-46 ball lens, 10° viewing angle,
RLT370-110, 370 nm, 1 mW @ 15 mA, TO-46 flat window, 110° viewing angle,
UVLED370-10, 370 nm, 10°, TO-46 ball lens, 0.75 mW @ 15 mA,
UVLED370-110, 370 nm, 110°, TO-46 flat window, 1 mW @ 15 mA,
NS375L-5CLA-4, 375 nm, 0.8 - 1.2 mW at 20 mA, 10°, TO-46 ball lens,
NS375L-5CLA-5, 375 nm, 1.2 - 1.8 mW at 20 mA, 10°, TO-46 ball lens,
RLU375-2-30, 375 nm, 2 mW @ 20 mA, 5 mm clear epoxy, 30° viewing angle,
LED375-04, 375 nm, 2.5 mW @ 20 mA, +/-17°, 5 mm clear epoxy,
LED375-33, 375 nm, 2.5 mW @ 20 mA, +/-11°, 3 mm clear epoxy,
380D30, 380 nm, 3 - 5 mW @ 20 mA, 5 mm clear epoxy, 30° viewing angle,
380SMD100, 380 nm, 3 - 5 mW @ 20 mA, SMD package, 120° viewing angle,
UVLED380-10, 380 nm, 10°, TO-46 ball lens, 2.0 - 3.4 mW @ 20 mA,
UVLED380-110, 380 nm, 110°, TO-46 flat window, 2.8 - 4.8 mW @ 20 mA,
E1S09-0P0AP-02, 382 nm, 1.7 mW @ 20 mA, SMD, 3.3 x 3.0 mm², 110° viewing angle,
RLS-UV380, 385 nm, 2 mW @ 20 mA, 30°, 5 mm clear epoxy,
RLU385-2-30, 385 nm, 2 mW @ 20 mA, 5 mm clear epoxy, 30° viewing angle,
LED385-04, 385 nm, 3.5 mW @ 20 mA, +/- 17°, 5 mm clear epoxy,
385D30, 385 nm, FWHM = 15 nm, 30°, 3-5 mW, 5 mm clear epoxy,
385D15, 385 nm, FWHM = 15 nm, 30°, 3-5 mW, 5 mm clear epoxy,
LED385-33, 385 nm, 3.5 mW at 20 mA, +/-11°, 3 mm clear epoxy,
E1L5M-3POAP-02, 385 nm, 1.7 mW @ 20 mA, TO-46 flat window, 110° viewing angle,
E1L5M-4POA2-01, 385 nm, 1.5 - 2.3 mW @ 20 mA, TO-46 ball lens, 16° viewing angle,
E1L5M-4POA2-01, 385 nm, 2.3 - 3.5 mW @ 20 mA, TO-46 ball lens, 16° viewing angle,
E1S09-0P0AP-02, 385 nm, 1.7 mW @ 20 mA, SMD, 3.3 x 3.0 mm², 110° viewing angle,
HUUV-5102L, 393 nm, 2 - 3 mW @ 20 mA, 5 mm clear epoxy, 20° viewing angle,
RLS-UV395, 395 nm, 6 mW @ 20 mA, 30°, 5 mm clear epoxy,
RLU395-8-30, 395 nm, 8 mW @ 20 mA, 5 mm clear epoxy, 30° viewing angle,
LEUV-C31A, 395 nm, min. 2.0 mW @ 20 mA, LED chip die, 375 x 330 µm², sapphire substrate,
LED395-03V, 395 nm, 6.0 mW @ 20 mA, +/-12°, 5 mm clear epoxy,
B3B-447-CVD, 395 nm, 15 mcd @ 20 mA, 30°, 3 mm clear epoxy,
B5-437-CVD, 395 nm, 5 - 8 mW @ 20 mA, 5 mm clear epoxy, 30° viewing angle,
LED395-33V, 395 nm, 3 mW @ 20 mA, +/-18°, 3 mm clear epoxy,
LED395-01V, 395 nm, 3 mW @ 20 mA, +/-10°, 5 mm clear epoxy,
LED395-02V, 395 nm, 3 mW @ 20 mA, +/-5°, 5 mm clear epoxy,
LED395-03V, 395 nm, 3 mW @ 20 mA, +/-12°, 5 mm clear epoxy,

sve u svemu...neupotrebljivo za takvu primenu.

uzgred, virtualx, teško da ćeš išta videti.

zasta se onda koriste te led diode?

Ima jedna zanimljivost black light se može lako vidjeti na cd-u. Staviš cd na sunce i vidjećeš cjeli vidljivi spektar od 400nm do 700nm ( od ljubičaste do crvene).
E sad onaj krajnji vidljivi dio spektra na strani ljubičaste je black light.

P.S Imal netko da radi fotopostupak sa Suncem, drugačije osim Sunca nisam ni probao.
5do10 min na podnevnom Suncu i dovoljno.

Nikada do sada, uglavnom flomaster ili sito stampa.

A sta radis oblacnim danima?!

E onda moram čekat Sunce nema mi druge

da vidio sam to pomocu cd-a
usmjerim cd na manje svijetlo mjesto i ima bas lijep spektar.
prije crvene je ic a poslije ljubicaste uv naravno

pozdrav
i ja ponekad razvijam plocicu uz pomoc sunca
uv led diode mislim na black light sluze u uredjajima za testiranje novca i drugih papira od vrednosti.
ima i drugih primena