Spectrographic charts

[The_LED_Museum]

Spectrometer plots of the four LEDs in an eternaLight Rave'n X2:

Spectrum of the red LED.

Spectrum of the yellow LED.

Spectrum of the green LED.

Spectrum of the blue LED.

 

[The_LED_Museum]

Spectrum of a 3 volt incandescent light blub.

 

[IsaacHayes]

Cool. Do one of your Cyan "positron laser" please!! I want to find out what bin it is!

 

[The_LED_Museum]

Your wish is my command...

Spectrum of the cyan Luxeon V in my Positron Laser flashlight.

 

[IsaacHayes]

Thanks! So is that 490nm? Hard to tell exactly what it is. Do you know exactly what the peak is? The colors around those wavelengths vary a lot with just a couple of nm.

EDIT: Unless your instrument gives the actuall peak number, what I determined from drawing a line in photoshop was 488nm!! Argon laser color exactly!!

 

[PhotonWrangler]

Spectrum of a 3 volt incandescent light blub.

Thanks! Now that's a perfect explanation of why a filtered incandescent bulb makes such a crummy blacklight. There ain't nuthin' there!

 

[IsaacHayes]

yeah, no wonder those things get hot! It's absorbing all the engery made by the bulb!!

 

[The_LED_Museum]

Thanks! So is that 490nm? Hard to tell exactly what it is. Do you know exactly what the peak is? The colors around those wavelengths vary a lot with just a couple of nm.

EDIT: Unless your instrument gives the actuall peak number, what I determined from drawing a line in photoshop was 488nm!! Argon laser color exactly!!

As far as I'm able to determine, the peak wavelength of that LED is between 491nm and 494nm.
Let me go examine that spectrum a little more closely and see if I can pin it down with any more accuracy...BBS...
Ok, looks like ~492nm to me.
Visually, from what I remember, the light from the Positron Laser is *JUST A HAIR* more greenish than the 488nm argon-ion laser.

 

[IsaacHayes]

Cool, sounds like you nailed it then. ~2-4nm is visable probably when compared side by side. Do you find the side-spill when cast on objects like wood/skin/etc or stuff at a distance looks more green than the center hotspot? I found that once you get to 488nm it all looks "light blue" and that effect goes away. :wave:

 

[The_LED_Museum]

I think the corona light appears to be the same color as the hotspot; but I don't have access to forested areas or dark distant areas here, so I can't take it into dark woods or dark parking lots to see how objects appear in this light to confirm these findings for you. :shakehead:

 

[The_LED_Museum]

Stable phosphor-type purple LED.

 

[The_LED_Museum]

395nm NUV LED.

 

[The_LED_Museum]

405nm violet LED.

 

[The_LED_Museum]

615nm orange LED.

 

[The_LED_Museum]

Cool white Cree Xlamp XL7090 LED.

 

[The_LED_Museum]

Visible spectrum of an open flame from a disposable butane "siggeret" lighter.

 

[The_LED_Museum]

Blue Lamina Ceramics array-type LED.

 

[The_LED_Museum]

Neon glow blub.

 

[The_LED_Museum]

Warm white Nichia Jigsaw LED.

 

[The_LED_Museum]

High-powered blue LED used in the 1 watt LED Light Bulb