SPECTROGRAPHIC (NORMAL & NARROWBAND) AND POWER OUTPUT ANALYSES OF LEDs THAT M.B. SENT IN EARLY-FEBRUARY 2012 (1)



This web page will be for nothing but spectra of 10mm, 8mm, 5mm, 3mm, and SMD LEDS (driven at 20mA to 60mA; with the exception of the LED in the Motion-Sensing Spotlight):

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.

SPECTRA (NORMAL & NARROWBAND) OF LEDs THAT M.B. SENT IN EARLY-FEBRUARY 2012 (1):

All spectra were performed with an If (forward current) of 97.30mA (except the pink LED, which was given an If=19.28mA), using an American Opto Plus LED Tester.










Beam photograph of the Unknown-type 10mm Blue LED.


Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-type 10mm Blue LED.



Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-type 10mm Blue LED; spectrometer's response narrowed to a range between 420nm and 470nm to pinpoint peak wavelength, which is 447.510nm.


Spectrographic plot
Power output of sample #1 of an Unknown-type 10mm Blue LED.
As you can see, this measures 96mW.


Spectrographic plot
Power output of sample #2 of an Unknown-type 10mm Blue LED.
As you can see, this measures 101mW.


Spectrographic plot
Power output of sample #3 of an Unknown-type 10mm Blue LED.
As you can see, this measures 83mW.


Spectrographic plot
Beam cross-sectional analysis.






Beam photograph of the Unknown-Type 10mm Round UV/"Purple" LED Light-Emitting Diode.


Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type 10mm Round UV/"Purple" LED Light-Emitting Diode.



Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type 10mm Round UV/"Purple" LED Light-Emitting Diode; spectrometer's response narrowed to a range between 380nm and 420nm to pinpoint peak wavelength, which is 399.852nm.


Spectrographic plot
Power output of sample #1 of an Unknown-Type 10mm Round UV/"Purple" LED Light-Emitting Diode.
As you can see, this measures 40mW.


Spectrographic plot
Power output of sample #2 of an Unknown-Type 10mm Round UV/"Purple" LED Light-Emitting Diode.
As you can see, this measures 29mW.


Spectrographic plot
Power output of sample #3 of an Unknown-Type 10mm Round UV/"Purple" LED Light-Emitting Diode.
As you can see, this measures 27mW.


Spectrographic plot
Beam cross-sectional analysis.







Beam photograph of the Unknown-Type "Straw Hat" Pink LED with Wide Angle.


Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type "Straw Hat" Pink LED with Wide Angle.



Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type "Straw Hat" Pink LED with Wide Angle; spectrometer's response narrowed to a range between 420nm and 470nm to pinpoint peak native emission wavelength, which is 444.933nm.

Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type "Straw Hat" Pink LED with Wide Angle; spectrometer's response narrowed to a range between 620nm and 670nm to pinpoint phosphor's peak emission wavelength, which is 644.770nm.


Spectrographic plot
Power output of sample #1 of an Unknown-Type "Straw Hat" Pink LED with Wide Angle.
As you can see, this measures 28mW.


Spectrographic plot
Power output of sample #2 of an Unknown-Type "Straw Hat" Pink LED with Wide Angle.
As you can see, this measures 22mW.


Spectrographic plot
Power output of sample #3 of an Unknown-Type "Straw Hat" Pink LED with Wide Angle.
As you can see, this measures 19mW.

















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 
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YELLOW 585-595nm
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