This is an unusual looking LED, packaged up in a custom case. The case, which is transparent but tinted a deep ruby red, has an inverse conical lens - that is to say
it is deeply concave and cut in towards the LED chip in the center, rather than being rounded like a regular LED.
When lit, this LED produces a small spot of a deep red color and has a very wide beam of approximately 100 degrees. It was apparently designed to be visible
off to the sides to the same degree that it is visible head-on. The only problem is, it's not very bright at all. Spectrographically, it shows a fairly wide range of
colors from deep red all the way into yellow; but most of its energy comes from the red region.
This LED came in a package offered by Radio Shack, which consisted of about 20 mixed, unsorted LEDs of all types and colors. So its origin is unknown,
and its intended use is also unknown - I haven't seen an LED of this type in service anywhere in the last twenty years; other than the ones I've ended up with and either lost
or installed in hobby equipment. Anybody who's bought Radio Shack's 20 ct. LED grab bag has probably ended up with a few of these.
The one I tested was installed in a toy many years ago; when the toy broke, I cannibalized it for its electronic parts plus the LED I put in it myself.
So this LED has just been clunking around in the bottom of a toolbox for who knows how many years before I put this website up.
WHITE 5500-6500K InGaN+phosphor
ULTRAVIOLET 370-390nm GaN
BLUE 430nm GaN+SiC
BLUE 450 and 473nm InGaN
BLUE 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.
RETURN TO OPENING/MAIN PAGE
LEDSaurus (on-site LED Mini Mart)
This page is a frame from a website.
If you arrived on this page through an outside link,
you can get the "full meal deal" by clicking here.