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LED for pulse oximeter

Former Member

Hello,

 

Do you know a company who sells (apropriate) LED for pulse oximeters?

We need very small LED, preferably a "pack" with an IR and RED led.

 

Thanks.

Parents

  • You do need to get similar wavelengths and drive the IR emitter quite hard.

     

    What is the Red LED for? Do you mean ID LED and IR phototransistor pair?

     

    I used this pair, both from Farnell, in my home-made Arduino project for this from the book '30 Arduino Projects for the Evil Genius'. The long number is the Farnell order code.

     

    36
    IR Phototransistor 935 nm
    1497882
    26
    5mm IR LED sender 940 nm
    1020634
Reply

  • You do need to get similar wavelengths and drive the IR emitter quite hard.

     

    What is the Red LED for? Do you mean ID LED and IR phototransistor pair?

     

    I used this pair, both from Farnell, in my home-made Arduino project for this from the book '30 Arduino Projects for the Evil Genius'. The long number is the Farnell order code.

     

    36
    IR Phototransistor 935 nm
    1497882
    26
    5mm IR LED sender 940 nm
    1020634
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