SPECTRA (NORMAL & NARROWBAND) OF LEDs THAT M.B. SENT IN MID-DECEMBER 2011 (3)
This is a fairly long page with at least 38 images on it; dial-up users please allow for plenty of load time.
Somebody set up us the bomb.


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 MID-DECEMBER 2011 (3):

All spectra were performed with an If (forward current) of 19.280mA, using an American Opto Plus LED Tester.


Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type 5mm Round Phosphor-Type Flat Top White LED.


Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type 5mm Round Phosphor-Type Flat Top White LED; spectrometer's response narrowed to a band between 420nm and 470nm to pinpoint peak native wavelength, which is 445.090nm.


Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type 5mm Round Phosphor-Type Flat Top White LED; spectrometer's response narrowed to a band between 530nm and 610nm to pinpoint phosphor's peak emission wavelength, which appears to be ~564.200nm.


Power output analysis
Power output analysis of sample #1 of an Unknown-Type 5mm Round Phosphor-Type Flat Top White LED.
Looks like it tops out at 14mW.


Spectrographic plot
Spectrographic analysis of sample #2 of an Unknown-Type 5mm Round Phosphor-Type Flat Top White LED.


Spectrographic plot
Spectrographic analysis of sample #2 of an Unknown-Type 5mm Round Phosphor-Type Flat Top White LED; spectrometer's response narrowed to a band between 420nm and 470nm to pinpoint peak native wavelength, which is 440.922nm.


Spectrographic plot
Spectrographic analysis of sample #2 of an Unknown-Type 5mm Round Phosphor-Type Flat Top White LED; spectrometer's response narrowed to a band between 530nm and 610nm to pinpoint phosphor's peak emission wavelength, which appears to be ~560.440nm.


Power output analysis
Power output analysis of sample #2 of an Unknown-Type 5mm Round Phosphor-Type Flat Top White LED.
Looks like it tops out at 15mW.


Beam photograph
Beam photograph on the test target at 24".


Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type 5mm Round Phosphor-Type Warm White LED.


Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type 5mm Round Phosphor-Type Warm White LED; spectrometer's response narrowed to a band between 420nm and 470nm to pinpoint peak native wavelength, which is 445.090nm.


Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type 5mm Round Phosphor-Type Warm White LED; spectrometer's response narrowed to a band between 530nm and 610nm to pinpoint phosphor's peak emission wavelength, which appears to be ~564.200nm.


Power output analysis
Power output analysis of sample #1 of an Unknown-Type 5mm Round Phosphor-Type Warm White LED.
Looks like it tops out at 13mW.


Spectrographic plot
Spectrographic analysis of sample #2 of an Unknown-Type 5mm Round Phosphor-Type Warm White LED.


Spectrographic plot
Spectrographic analysis of sample #2 of an Unknown-Type 5mm Round Phosphor-Type Warm White LED; spectrometer's response narrowed to a band between 420nm and 470nm to pinpoint peak native wavelength, which is 440.922nm.


Spectrographic plot
Spectrographic analysis of sample #2 of an Unknown-Type 5mm Round Phosphor-Type Warm White LED; spectrometer's response narrowed to a band between 530nm and 610nm to pinpoint phosphor's peak emission wavelength, which appears to be ~560.440nm.


Power output analysis
Power output analysis of sample #2 of an Unknown-Type 5mm Round Phosphor-Type Warm White LED.
Looks like it tops out at 8mW.


Power output analysis
Beam cross-sectional analysis.


Beam photograph
Beam photograph on the test target at 24".


Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type 5mm Round Green (InGaN) LED.


Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type 5mm Round Green (InGaN) LED; spectrometer's response narrowed to a band between 490nm and 540nm to pinpoint peak wavelength, which is 515.820nm.


Power output analysis
Power output analysis of sample #1 of an Unknown-Type 5mm Round Green (InGaN) LED.
Looks like it tops out at 15mW.


Spectrographic plot
Spectrographic analysis of sample #2 of an Unknown-Type 5mm Round Green (InGaN) LED.


Spectrographic plot
Spectrographic analysis of sample #2 of an Unknown-Type 5mm Round Green (InGaN) LED; spectrometer's response narrowed to a band between 490nm and 540nm to pinpoint peak wavelength, which is 515.920nm.


Power output analysis
Power output analysis of sample #2 of an Unknown-Type 5mm Round Green (InGaN) LED.
Looks like it tops out at 16mW.


Power output analysis
Beam cross-sectional analysis.


Beam photograph
Beam photograph on the test target at 24".


Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type 5mm Round Blue LED.


Spectrographic plot
Spectrographic analysis of sample #1 of an Unknown-Type 5mm Round Blue LED; spectrometer's response narrowed to a band between 430nm and 480nm to pinpoint peak wavelength, which is exactly 460.000nm.


Power output analysis
Power output analysis of sample #1 of an Unknown-Type 5mm Round Blue LED.
Looks like it tops out at 15mW.


Spectrographic plot
Spectrographic analysis of sample #2 of an Unknown-Type 5mm Round Blue LED.


Spectrographic plot
Spectrographic analysis of sample #2 of an Unknown-Type 5mm Round Blue LED; spectrometer's response narrowed to a band between 430nm and 480nm to pinpoint peak wavelength, which is 460.105nm.


Power output analysis
Power output analysis of sample #2 of an Unknown-Type 5mm Round Blue LED.
Looks like it tops out at 16mW.


Power output analysis
Beam cross-sectional analysis.


Beam photograph
Beam photograph on the test target at 24".













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