NARROWBAND SPECTRA OF LOW-POWERED ULTRAVIOLET-A LEDS


This web page will be for nothing but spectra of 10mm, 8mm, 5mm, 3mm, and SMD LEDS (driven at 20mA to 60mA):

Ocean Optics USB2000 Spectrometer donated by P.L.
As of 10-10-07, I've been using a PC2000-ISA Spectrometer from Ocean Optics that I received several years ago, but that I didn't have a home for until now.
As of 03-08-08, I once again have the USB2000 spectrometer, enabling color spectra again.
As of 09-19-09, I no longer have the PC2000-ISA; it was sold to prevent an eviction.



NARROWBAND SPECTRA OF ULTRAVIOLET-A LEDs

Spectrographic analysis
Spectrographic analysis of the UVA LED in the 395nm Arc-AAA UV; spectrometer's response narrowed to a band between 380nm and 410nm to pinpoint peak wavelength, which is 393.682nm.


Spectrographic analysis
Spectrographic analysis of the UVA LED in the Arc AAA UV; spectrometer's response narrowed to a range between 360nm and 405nm to pinpoint peak wavelength, which is 377.450nm.


Spectrographic analysis
Spectrographic analysis of an unknown-type 5mm 395nm UVA LED sent by B.T. from San Diego CA. USA in late-2005; spectrometer's response narrowed to a band between 380nm and 410nm to pinpoint peak wavelength, which is ~399.70nm


Spectrographic analysis
Spectrographic analysis of an unknown-type 5mm 395nm UVA LED sent by B.T. from San Diego CA. USA in late-2005; spectrometer's response narrowed to a band between 380nm and 410nm to pinpoint peak wavelength, which is ~396.80nm.


Spectrographic analysis
Spectrographic analysis of an unknown-type 5mm 395nm UVA LED; spectrometer's response narrowed to a band between 380nm and 420nm to pinpoint peak wavelength, which is ~397.60nm.


Spectrographic analysis
Spectrographic analysis of an unknown-type 5mm 395nm UVA LED; spectrometer's response narrowed to a band between 430nm and 700nm to and "amplified" to show weak broadband visible outout, which peaks at ~561.650nm.


Spectrographic analysis
Spectrographic analysis of the LEDs in the 41x UV LED Flashlight; spectrometer's response narrowed to a range between 380nm to 420nm to pinpoint peak wavelength, which is 396.792nm.


Spectrographic plot
Spectrographic analysis of the LEDs in the Cliplight 'Vector 7' Rechargeable UV LED Light; spectrometer's response narrowed to a band betwen 380nm and 430nm to pinpoint peak wavelength, which appears to be 404.95nm.


Spectrographic analysis
Spectrographic analysis of the LED in the 375nm LED Penlight; newer spectrometer software & settings used.
Spectrometer's response narrowed to a range of 370nm to 400nm to pinpoint peak wavelength -- which appears to be ~382nm.


Spectrographic analysis
Spectrographic analysis of the Inova X5T UV LED Flashlight; spectrometer's response narrowed to a range between 370nm and 420nm to pinpoint peak wavelength; which appears to be ~395.20nm; newer spectrometer software & settings used.


Spectrographic plot
Spectrographic analysis of the LEDs in the 7-LED 385nm UV Flashlight (2); spectrometer's response range narrowed to a band between 350nm and 420nm to help pinpoint peak wavelength; which appears to be ~384.30nm.


Spectrographic analysis
Spectrographic analysis of the LEDs in the 9x LED 365nm UVA Flashlight (2); spectrometer's response narrowed to a band between 355nm and 385nm to pinpoint peak wavelength -- which appears to be 370.95nm.
Most UVA LEDs have a wavelength tolerance of +-10nm, so this is well within spec.


Spectrographic plot
Spectrographic analysis of the LEDs in the 385nm 7-LED UV Flashlight; spectrometer's response range narrowed to a band between 350nm and 420nm to help pinpoint peak wavelength; which appears to be ~383.80nm.


Spectrographic plot
Spectrographic analysis of the LEDs in the Inova X5T UV LED Flashlight; spectrometer's response narrowed to a range between 380nm and 420nm
to pinpoint peak wavelength; which appears to be ~395nm.


Spectrographic plot
Spectrographic analysis of the LED in the Suncke Light 370nm LED Flashlight;; spectrometer's response narrowed to a range between 365nm and 435nm to pinpoint peak wavelength.


Spectrographic analysis
Spectrographic analysis of the LEDs in the 395nm 110v 102 LED Bulb; spectrometer's response narrowed to a band between 380nm and 410nm to pinpoint peak wavelength -- which appears to be 394.30nm.
Most UVA LEDs have a wavelength tolerance of +-10nm, so this is well within spec. Virtually spot-on, actually!!!


Spectrographic analysis
Spectrographic analysis of the LEDs in the 9x 370nm UV LED Flashlight; spectrometer's response narrowed to a band between 380nm and 410nm to pinpoint peak wavelength -- which appears to be 394.80nm.
Most UVA LEDs have a wavelength tolerance of +-10nm, so this is somewhat out of whack.


Spectrographic analysis
Spectrographic analysis of the LEDs in the 9x 365nm UV LED Flashlight; spectrometer's response narrowed to a band between 355nm and 385nm to pinpoint peak wavelength -- which appears to be 370.95nm.
Most UVA LEDs have a wavelength tolerance of +-10nm, so this is well within spec.













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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
YELLOW 585-595nm
AMBER 595-605nm
ORANGE 605-620nm
ORANGISH-RED 620-635nm
RED 640-700nm
INFRARED 700-1300nm
True RGB Full Color LED
Spider (Pirrahna) LEDs
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True violet (400-418nm) LEDs
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Programmable RGB LED modules / fixtures
Where to buy these LEDs 
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