Broadening LED spectrum possible?Variable wavelength IR Diode?What type of LED lights are needed for...
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Broadening LED spectrum possible?
Variable wavelength IR Diode?What type of LED lights are needed for detecting retro-reflective markers for motion capture project?Building a 3x3x3 LED cube?What are some LED technology for one dimensional coherent light emission?How to build a continuous LED bar?PWM led controllerWill a resistive load make LightwaveRF dimmer work with 30W transformer?How to toggle LED with button on dsPIC33 and dsPICDEM MCLV-2 devboardManufacturing of Translucent LED Indicating Symbols (e.g. router indicator lights)Precise On/Off control for IR LED100W LED - Arduino controlled Driver
$begingroup$
I suspect the answer to this is going to be "no", however, just in case anyone knows something...
I need to broaden the emission peak of a near IR LED. Is there any generally applicable method of doing this in a reliable manner?
led infrared
asked 36 mins ago
Dirk BruereDirk Bruere
5,45342959
$endgroup$
add a comment |
$begingroup$
I suspect the answer to this is going to be "no", however, just in case anyone knows something...
I need to broaden the emission peak of a near IR LED. Is there any generally applicable method of doing this in a reliable manner?
led infrared
asked 36 mins ago
Dirk BruereDirk Bruere
5,45342959
$endgroup$
$begingroup$
Possible duplicate of Variable wavelength IR Diode?
$endgroup$
– Marcus Müller
24 mins ago
$begingroup$
I had a funny thought, theoretically if you wave if fast enough would you get some sort of Doppler effect, but with light? (theoretically)
$endgroup$
– Wesley Lee
24 mins ago
$begingroup$
Use your LED to shine on light emitting material with other lambda...
$endgroup$
– smajli
18 mins ago
add a comment |
$begingroup$
I suspect the answer to this is going to be "no", however, just in case anyone knows something...
I need to broaden the emission peak of a near IR LED. Is there any generally applicable method of doing this in a reliable manner?
led infrared
asked 36 mins ago
Dirk BruereDirk Bruere
5,45342959
$endgroup$
I suspect the answer to this is going to be "no", however, just in case anyone knows something...
I need to broaden the emission peak of a near IR LED. Is there any generally applicable method of doing this in a reliable manner?
led infrared
led infrared
asked 36 mins ago
Dirk BruereDirk Bruere
5,45342959
asked 36 mins ago
Dirk BruereDirk Bruere
5,45342959
asked 36 mins ago
Dirk BruereDirk Bruere
5,45342959
asked 36 mins ago
Dirk BruereDirk Bruere
5,45342959
asked 36 mins ago
Dirk BruereDirk Bruere
5,45342959
5,45342959
$begingroup$
Possible duplicate of Variable wavelength IR Diode?
$endgroup$
– Marcus Müller
24 mins ago
$begingroup$
I had a funny thought, theoretically if you wave if fast enough would you get some sort of Doppler effect, but with light? (theoretically)
$endgroup$
– Wesley Lee
24 mins ago
$begingroup$
Use your LED to shine on light emitting material with other lambda...
$endgroup$
– smajli
18 mins ago
add a comment |
$begingroup$
Possible duplicate of Variable wavelength IR Diode?
$endgroup$
– Marcus Müller
24 mins ago
$begingroup$
I had a funny thought, theoretically if you wave if fast enough would you get some sort of Doppler effect, but with light? (theoretically)
$endgroup$
– Wesley Lee
24 mins ago
$begingroup$
Use your LED to shine on light emitting material with other lambda...
$endgroup$
– smajli
18 mins ago
$begingroup$
Possible duplicate of Variable wavelength IR Diode?
$endgroup$
– Marcus Müller
24 mins ago
$begingroup$
Possible duplicate of Variable wavelength IR Diode?
$endgroup$
– Marcus Müller
24 mins ago
$begingroup$
I had a funny thought, theoretically if you wave if fast enough would you get some sort of Doppler effect, but with light? (theoretically)
$endgroup$
– Wesley Lee
24 mins ago
$begingroup$
I had a funny thought, theoretically if you wave if fast enough would you get some sort of Doppler effect, but with light? (theoretically)
$endgroup$
– Wesley Lee
24 mins ago
$begingroup$
Use your LED to shine on light emitting material with other lambda...
$endgroup$
– smajli
18 mins ago
$begingroup$
Use your LED to shine on light emitting material with other lambda...
$endgroup$
– smajli
18 mins ago
add a comment |
3 Answers
3
active
oldest
votes
$begingroup$
Run it at the highest current possible. It will get hot, and radiate IR just from the heat (like any hot object.) If you over do it, you will end up with a DED (dark emitting diode.)
Other than that, LED spectrums are pretty much set in stone.
The wavelength is determined by the materials the LED is made of. The wavelength will vary a (tiny) bit with temperature, but that's about it.
answered 27 mins ago
JREJRE
21.8k43769
$endgroup$
add a comment |
$begingroup$
You can always add filters to 'cut' spectrum, getting more of it from a semiconductor device without changing the material will be difficult.
answered 22 mins ago
laptop2dlaptop2d
25.3k123278
$endgroup$
add a comment |
$begingroup$
For a particular LED? No.
A quick web search for "broad spectrum IR LED" threw up the following interesting news release, Osram presents the world’s first broadband infrared LED from 2016.
Osram Opto Semiconductors is using converter technology for infrared emitters for the first time. The result is an LED that emits broadband infrared light in a wavelength range from 650 to 1,050 nanometers (nm). The main application is near-infrared spectroscopy, for example for analyzing food.
Further down the technology is explained thus:
The basis of the SFH 4735 is a blue 1 mm2 chip in UX:3 technology. Its light is converted into infrared radiation with the aid of a phosphor converter developed specifically for this application. A residual blue component in the light helps users target the area they want to investigate. The emission spectrum of the SFH 4735 has a homogeneous spectral distribution in the infrared range. The chip is mounted in the proven and compact Oslon Black Flat package which is characterized in particular by good thermal resistance.
Checking the SFH4735 datasheet, the Vf is 2.95 V at 350 mA which ties in with the blue LED as IR would typically be 1.4 V for the low power devices at least.
They're quoting 60 μW @ 750 nm and 30 μW @ 980 nm.
€6 each on Digi-Key.
answered 17 mins ago
TransistorTransistor
84.7k784181
$endgroup$
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
Run it at the highest current possible. It will get hot, and radiate IR just from the heat (like any hot object.) If you over do it, you will end up with a DED (dark emitting diode.)
Other than that, LED spectrums are pretty much set in stone.
The wavelength is determined by the materials the LED is made of. The wavelength will vary a (tiny) bit with temperature, but that's about it.
answered 27 mins ago
JREJRE
21.8k43769
$endgroup$
add a comment |
$begingroup$
Run it at the highest current possible. It will get hot, and radiate IR just from the heat (like any hot object.) If you over do it, you will end up with a DED (dark emitting diode.)
Other than that, LED spectrums are pretty much set in stone.
The wavelength is determined by the materials the LED is made of. The wavelength will vary a (tiny) bit with temperature, but that's about it.
answered 27 mins ago
JREJRE
21.8k43769
$endgroup$
add a comment |
$begingroup$
Run it at the highest current possible. It will get hot, and radiate IR just from the heat (like any hot object.) If you over do it, you will end up with a DED (dark emitting diode.)
Other than that, LED spectrums are pretty much set in stone.
The wavelength is determined by the materials the LED is made of. The wavelength will vary a (tiny) bit with temperature, but that's about it.
answered 27 mins ago
JREJRE
21.8k43769
$endgroup$
Run it at the highest current possible. It will get hot, and radiate IR just from the heat (like any hot object.) If you over do it, you will end up with a DED (dark emitting diode.)
Other than that, LED spectrums are pretty much set in stone.
The wavelength is determined by the materials the LED is made of. The wavelength will vary a (tiny) bit with temperature, but that's about it.
answered 27 mins ago
JREJRE
21.8k43769
answered 27 mins ago
JREJRE
21.8k43769
answered 27 mins ago
JREJRE
21.8k43769
answered 27 mins ago
JREJRE
21.8k43769
21.8k43769
add a comment |
add a comment |
$begingroup$
You can always add filters to 'cut' spectrum, getting more of it from a semiconductor device without changing the material will be difficult.
answered 22 mins ago
laptop2dlaptop2d
25.3k123278
$endgroup$
add a comment |
$begingroup$
You can always add filters to 'cut' spectrum, getting more of it from a semiconductor device without changing the material will be difficult.
answered 22 mins ago
laptop2dlaptop2d
25.3k123278
$endgroup$
add a comment |
$begingroup$
You can always add filters to 'cut' spectrum, getting more of it from a semiconductor device without changing the material will be difficult.
answered 22 mins ago
laptop2dlaptop2d
25.3k123278
$endgroup$
You can always add filters to 'cut' spectrum, getting more of it from a semiconductor device without changing the material will be difficult.
answered 22 mins ago
laptop2dlaptop2d
25.3k123278
answered 22 mins ago
laptop2dlaptop2d
25.3k123278
answered 22 mins ago
laptop2dlaptop2d
25.3k123278
answered 22 mins ago
laptop2dlaptop2d
25.3k123278
25.3k123278
add a comment |
add a comment |
$begingroup$
For a particular LED? No.
A quick web search for "broad spectrum IR LED" threw up the following interesting news release, Osram presents the world’s first broadband infrared LED from 2016.
Osram Opto Semiconductors is using converter technology for infrared emitters for the first time. The result is an LED that emits broadband infrared light in a wavelength range from 650 to 1,050 nanometers (nm). The main application is near-infrared spectroscopy, for example for analyzing food.
Further down the technology is explained thus:
The basis of the SFH 4735 is a blue 1 mm2 chip in UX:3 technology. Its light is converted into infrared radiation with the aid of a phosphor converter developed specifically for this application. A residual blue component in the light helps users target the area they want to investigate. The emission spectrum of the SFH 4735 has a homogeneous spectral distribution in the infrared range. The chip is mounted in the proven and compact Oslon Black Flat package which is characterized in particular by good thermal resistance.
Checking the SFH4735 datasheet, the Vf is 2.95 V at 350 mA which ties in with the blue LED as IR would typically be 1.4 V for the low power devices at least.
They're quoting 60 μW @ 750 nm and 30 μW @ 980 nm.
€6 each on Digi-Key.
answered 17 mins ago
TransistorTransistor
84.7k784181
$endgroup$
add a comment |
$begingroup$
For a particular LED? No.
A quick web search for "broad spectrum IR LED" threw up the following interesting news release, Osram presents the world’s first broadband infrared LED from 2016.
Osram Opto Semiconductors is using converter technology for infrared emitters for the first time. The result is an LED that emits broadband infrared light in a wavelength range from 650 to 1,050 nanometers (nm). The main application is near-infrared spectroscopy, for example for analyzing food.
Further down the technology is explained thus:
The basis of the SFH 4735 is a blue 1 mm2 chip in UX:3 technology. Its light is converted into infrared radiation with the aid of a phosphor converter developed specifically for this application. A residual blue component in the light helps users target the area they want to investigate. The emission spectrum of the SFH 4735 has a homogeneous spectral distribution in the infrared range. The chip is mounted in the proven and compact Oslon Black Flat package which is characterized in particular by good thermal resistance.
Checking the SFH4735 datasheet, the Vf is 2.95 V at 350 mA which ties in with the blue LED as IR would typically be 1.4 V for the low power devices at least.
They're quoting 60 μW @ 750 nm and 30 μW @ 980 nm.
€6 each on Digi-Key.
answered 17 mins ago
TransistorTransistor
84.7k784181
$endgroup$
add a comment |
$begingroup$
For a particular LED? No.
A quick web search for "broad spectrum IR LED" threw up the following interesting news release, Osram presents the world’s first broadband infrared LED from 2016.
Osram Opto Semiconductors is using converter technology for infrared emitters for the first time. The result is an LED that emits broadband infrared light in a wavelength range from 650 to 1,050 nanometers (nm). The main application is near-infrared spectroscopy, for example for analyzing food.
Further down the technology is explained thus:
The basis of the SFH 4735 is a blue 1 mm2 chip in UX:3 technology. Its light is converted into infrared radiation with the aid of a phosphor converter developed specifically for this application. A residual blue component in the light helps users target the area they want to investigate. The emission spectrum of the SFH 4735 has a homogeneous spectral distribution in the infrared range. The chip is mounted in the proven and compact Oslon Black Flat package which is characterized in particular by good thermal resistance.
Checking the SFH4735 datasheet, the Vf is 2.95 V at 350 mA which ties in with the blue LED as IR would typically be 1.4 V for the low power devices at least.
They're quoting 60 μW @ 750 nm and 30 μW @ 980 nm.
€6 each on Digi-Key.
answered 17 mins ago
TransistorTransistor
84.7k784181
$endgroup$
For a particular LED? No.
A quick web search for "broad spectrum IR LED" threw up the following interesting news release, Osram presents the world’s first broadband infrared LED from 2016.
Osram Opto Semiconductors is using converter technology for infrared emitters for the first time. The result is an LED that emits broadband infrared light in a wavelength range from 650 to 1,050 nanometers (nm). The main application is near-infrared spectroscopy, for example for analyzing food.
Further down the technology is explained thus:
The basis of the SFH 4735 is a blue 1 mm2 chip in UX:3 technology. Its light is converted into infrared radiation with the aid of a phosphor converter developed specifically for this application. A residual blue component in the light helps users target the area they want to investigate. The emission spectrum of the SFH 4735 has a homogeneous spectral distribution in the infrared range. The chip is mounted in the proven and compact Oslon Black Flat package which is characterized in particular by good thermal resistance.
Checking the SFH4735 datasheet, the Vf is 2.95 V at 350 mA which ties in with the blue LED as IR would typically be 1.4 V for the low power devices at least.
They're quoting 60 μW @ 750 nm and 30 μW @ 980 nm.
€6 each on Digi-Key.
answered 17 mins ago
TransistorTransistor
84.7k784181
answered 17 mins ago
TransistorTransistor
84.7k784181
answered 17 mins ago
TransistorTransistor
84.7k784181
answered 17 mins ago
TransistorTransistor
84.7k784181
84.7k784181
add a comment |
add a comment |
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$begingroup$
Possible duplicate of Variable wavelength IR Diode?
$endgroup$
– Marcus Müller
24 mins ago
$begingroup$
I had a funny thought, theoretically if you wave if fast enough would you get some sort of Doppler effect, but with light? (theoretically)
$endgroup$
– Wesley Lee
24 mins ago
$begingroup$
Use your LED to shine on light emitting material with other lambda...
$endgroup$
– smajli
18 mins ago