Here is another yellow LED with an unusual "shamrock" beam pattern.
Packaged in a standard clear T1 3/4 case, this bright yellow LED has several characteristics which make it very unique.
This particular LED has probably the most unusual beam pattern I've seen since the nitride series blue & green models started showing up.
- Bright yellow, slightly rounded square central beam.
- An unusual "shamrock" pattern embedded within a dimmer coronal zone, and
- A very distinct, bright orange outer ring and dim, brownish-orange outer corona beyond that.
This LED also has an "X" shaped wire bond pad, like the other yellow Toshiba model outlined earlier. I believe this contributes to creating the shamrock shape within the LED's
When shone at a more distant target, the square central beam becomes slightly diffuse, and a very narrow pinpoint of brighter light appears at the center.
The orange outer ring pretty much dissipates at greater distances, and isn't really an issue when the LED is used that way.
Beam profile on this unusual lamp. The broken camera simply couldn't focus well enough to capture the finer details.
WHITE 5500-6500K InGaN+phosphor
ULTRAVIOLET 370-390nm GaN
BLUE 430nm GaN+SiC
BLUE 450 and 473nm InGaN
yellow Silicon Carbide
TURQUOISE 495-505nm InGaN
GREEN 525nm InGaN
YELLOW-GREEN 555-575mn GaAsP & related
True RGB Full Color LED
Spider (Pirrahna) LEDs
True violet (400-418nm) LEDs
Agilent Barracuda & Prometheus LEDs
Oddball & Miscellaneous LEDs
Programmable RGB LED modules / fixtures
Where to buy these LEDs
Links to other LED-related websites
The World's First Virtual LED Museum
The Punishment Zone - Where Flashlights Go to Die
Legal horse puckey, etc.
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