NARROWBAND SPECTRA OF LOW-POWERED VIOLET 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 VIOLET LEDs

Spectrographic analysis
Spectrographic analysis of a T1 (5mm) violet LED; Radio Shack # 276-0014; spectrometer's response narrowed to a band between 390nm and 420nm to pinpoint peak wavelength, which is 404.890nm.


Spectrographic analysis
Spectrographic analysis of a YesLED.com "420nm" "UV" LED; spectrometer's response narrowed to a band between 390nm and 420nm to pinpoint peak wavelength, which is 402.450nm.


Spectrographic analysis
Spectrographic analysis of the violet LED in the Computer Case LED "UFO"; spectrometer's response narrowed to a band between 390nm and 440nm to pinpoint peak wavelength, which is 422.50nm.


Spectrographic analysis
Spectrographic analysis of the LEDs in the Violet LED Computer Case Light; newer spectrometer software settings used.


Spectrographic analysis
Spectrographic analysis of the LEDs in the Violet LED Computer Case Light; newer spectrometer software settings used. Spectrometer's input deliberately "overloaded" to show the spectral feature (a broadband hump) in the visible that failing violet & UV LEDs emit.


Spectrographic analysis
Spectrographic analysis of the LEDs in the Violet LED Computer Case Light; spectrometer's response narrowed to a band between 390nm and 430nm to pinpoint peak wavelength, which is ~406.80nm.


Spectrographic analysis
Spectrographic analysis of the NUV LEDs in the Cliplight 'Vector 4' NUV Inspection Light; spectrometer's response narrowed to a range between 380nm and 420nm to pinpoint peak wavelength; which appears to be 404.90nm.










Do you manufacture or sell an LED flashlight, task light, utility light, or module of some kind? Want to see it tested by a real person, under real working conditions? Do you then want to see how your light did? If you have a sample available for this type of real-world, real-time testing, please contact me at ledmuseum@gmail.com.

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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
SMD 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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