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NARROWBAND SPECTRA OF HIGH-POWERED PHOSPHOR WARM WHITE LEDS


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.

HIGH-POWERED PHOSPHOR WARM WHITE LEDS; SPECTROMETER'S RESPONSE BAND NARROWED TO PINPOINT NATIVE EMISSION BAND:

Spectrographic plot
Spectrographic analysis of the LED in the NLS; newest (01-13-13) spectrometer software settings used. Spectrometer's response narrowed to a band between 550nm and 650nm to show that queer little phosphor peak characteristic of LS 1 and 3 watt LEDs of this era.


Spectrographic plot
Spectrographic analysis of the LED in the NLS; newest (01-13-13) spectrometer software settings used. Spectrometer's response narrowed to a band between 460nm and 470nm to pinpoint peak native emission wavelength, which is 463.500nm.

The raw spectrometer data (tab-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/45/nls.txt Spectrographic analysis
Spectrographic analysis of the LED in the Soraa Vivid 2 MR16 Lamp; spectrometer's response narrowed to a band between 410nm and 420nm to pinpoint native emission peak wavelength, which is 414.640nm.


Spectrographic analysis
Spectrographic analysis of the LED in the Soraa Vivid 2 MR16 Lamp; spectrometer's response narrowed to a band between 615nm and 635nm to pinpoint phosphor emission peak wavelength, which is 623.020nm.

The raw spectrometer data (tab-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/44/soraa1.txt


Spectrographic analysis
Spectrographic analysis of the LED in the Arc LS Premium; newest (01-13-13) spectrometer software settings used. Spectrometer's response narrowed to a band between 450nm and 460nm to pinpoint native emission peak wavelength, which is 455.760nm.


Spectrographic analysis
Spectrographic analysis of the LED in the Arc LS Premium; newest (01-13-13) spectrometer software settings used. Spectrometer's response narrowed to a band between 605nm and 615nm to pinpoint that queer little phosphor emission peak found in early 1W Luxeon Star LEDs, which is 611.690nm.

The raw spectrometer data (comma-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/43/lshp.txt


Spectrographic analysis
Spectrographic analysis of the warm white LED in the 5 Watt Warm White LED Desk Lamp (minimum intensity); spectrometer's response narrowed to a band between 447nm and 457nm to pinpoint native emission peak wavelength, which is exactly 454.00nm.


Spectrographic analysis
Spectrographic analysis of the warm white LED in the 5 Watt Warm White LED Desk Lamp (minimum intensity); spectrometer's response narrowed to a band between 565nm and 575nm to pinpoint phosphor emission peak wavelength, which is 567.210nm.

The raw spectrometer data (comma-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/42/5wdl-min.txt


Spectrographic analysis
Spectrographic analysis of the warm white LED in the 5 Watt Warm White LED Desk Lamp (maximum intensity); spectrometer's response narrowed to a band between 447nm and 457nm to pinpoint native emission peak wavelength, which is 452.590nm.


Spectrographic analysis
Spectrographic analysis of the warm white LED in the 5 Watt Warm White LED Desk Lamp (maximum intensity); spectrometer's response narrowed to a band between 565nm and 575nm to pinpoint phosphor emission peak wavelength, which is 569.250nm.

The raw spectrometer data (comma-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/42/5wdl-max.txt


Spectrographic analysis
Spectrographic analysis of the LEDs in the AccentLED Medium-Base Warm White LED Light Bulb; spectrometer's response narrowed to a band between 440nm to 470nm to pinpoint native peak emission wavelength, which is 454.824nm.


Spectrographic analysis
Spectrographic analysis of the LEDs in the AccentLED Medium-Base Warm White LED Light Bulb; spectrometer's response narrowed to a band between 550nm to 610nm to pinpoint phosphor peak emission wavelength, which is 569.799nm.


Spectrographic analysis
Spectrographic analysis of the LED in sample 1 of the Mr. Beams™ Motion-Sensing "Stick Anywhere" Night Lights; spectrometer's response narrowed to a band between 420nm and 470nm to pinpoint native emission peak, which is 453.590nm.


Spectrographic analysis
Spectrographic analysis of the LED in sample 2 of the Mr. Beams™ Motion-Sensing "Stick Anywhere" Night Lights; spectrometer's response narrowed to a band between 420nm and 470nm to pinpoint native emission peak, which is 451.623nm.


Spectrographic analysis
Spectrographic analysis of the LED in sample 3 of the Mr. Beams™ Motion-Sensing "Stick Anywhere" Night Lights; spectrometer's response narrowed to a band between 420nm and 470nm to pinpoint native emission peak, which is 450.489nm.


Spectrographic analysis
Spectrographic analysis of the warm white LED in the 5 Watt Warm White LED Desk Lamp (minimum intensity); spectrometer's response narrowed to a band between 430nm and 480nm to pinpoint native emission peak wavelength, which is 453.992nm.


Spectrographic analysis
Spectrographic analysis of the warm white LED in the 5 Watt Warm White LED Desk Lamp (minimum intensity); spectrometer's response narrowed to a band between 540nm and 590nm to pinpoint phosphor emission peak wavelength, which is 570.00nm.


Spectrographic analysis
Spectrographic analysis of the warm white LED in the 5 Watt Warm White LED Desk Lamp (maximum intensity); spectrometer's response narrowed to a band between 430nm and 480nm to pinpoint native emission peak wavelength, which is 455.020nm.


Spectrographic analysis
Spectrographic analysis of the warm white LED in the 5 Watt Warm White LED Desk Lamp (maximum intensity); spectrometer's response narrowed to a band between 540nm and 590nm to pinpoint phosphor emission peak wavelength, which is 570.344nm.













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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