Light source with adjustable wavelength for oximeter
    1.
    发明专利
    Light source with adjustable wavelength for oximeter 有权
    用于OXIMETER的可调波长的光源

    公开(公告)号:JP2006122693A

    公开(公告)日:2006-05-18

    申请号:JP2005353967

    申请日:2005-12-07

    Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for calibration and use of light emitting diodes (LEDs) generally relating to more efficient calibration and use of the LEDs. SOLUTION: The method and the apparatus of the present invention provides a system wherein LEDs can be tuned within an arbitrary range by selecting their operating drive current in order to obtain a precise wavelength. The present invention further provides a manner in which to calibrate and utilize an LED probe, such that the shift in wavelength for a known change in drive current is a known quantity. In general, the principle of wavelength shift for current drive changes for LEDs is utilized in order to allow better calibration and added flexibility in the use of LED sensors, particularly in applications when the precise wavelength is needed in order to obtain accurate measurements.The present invention also provides a system in which it is not necessary to know precise wavelengths of LEDs where precise wavelengths were needed in the past. Finally, the present invention provides a method and an apparatus for measuring the operating wavelength of a light-emitting element such as a light-emitting diode. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题:提供一种用于校准和使用通常与更有效的校准和使用LED的发光二极管(LED)的方法和装置。 解决方案:本发明的方法和装置提供了一种系统,其中可以通过选择其工作驱动电流来将LED调谐到任意范围内,以获得精确的波长。 本发明还提供了校准和利用LED探针的方式,使得驱动电流已知变化的波长偏移是已知量。 一般来说,利用LED的电流驱动变化的波长偏移原理,以便在使用LED传感器时更好地进行校准和增加灵活性,特别是在需要精确波长以便获得精确测量时的应用中。 本发明还提供了一种系统,其中不需要知道过去需要精确波长的LED的精确波长。 最后,本发明提供了一种用于测量诸如发光二极管等发光元件的工作波长的方法和装置。 版权所有(C)2006,JPO&NCIPI

    2.
    发明专利
    未知

    公开(公告)号:AT439081T

    公开(公告)日:2009-08-15

    申请号:AT02012382

    申请日:1996-06-04

    Applicant: MASIMO CORP

    Abstract: The method and apparatus of the present invention provides a system wherein light-emitting diodes (LEDs) (162) can be tuned within a given range by selecting their operating drive current in order to obtain a precise wavelength. The present invention further provides a manner in which to calibrate and utilize an LED probe (150), such that the shift in wavelength for a known change in drive current is a known quantity. In general, the principle of wavelength shift for current drive changes for LEDs is utilized in order to allow better calibration and added flexibility in the use of LED sensors, particularly in applications when the precise wavelength is needed in order to obtain accurate measurements. The present invention also provides a system in which it is not necessary to know precise wavelengths of LEDs where precise wavelengths were needed in the past. Finally, the present invention provides a method and apparatus for determining the operating wavelength of a light-emitting element such a light-emitting diode.

    3.
    发明专利
    未知

    公开(公告)号:PT832421E

    公开(公告)日:2002-12-31

    申请号:PT96917089

    申请日:1996-06-04

    Applicant: MASIMO CORP

    Abstract: The method and apparatus of the present invention provides a system wherein light-emitting diodes (LEDs) (162) can be tuned within a given range by selecting their operating drive current in order to obtain a precise wavelength. The present invention further provides a manner in which to calibrate and utilize an LED probe (150), such that the shift in wavelength for a known change in drive current is a known quantity. In general, the principle of wavelength shift for current drive changes for LEDs is utilized in order to allow better calibration and added flexibility in the use of LED sensors, particularly in applications when the precise wavelength is needed in order to obtain accurate measurements. The present invention also provides a system in which it is not necessary to know precise wavelengths of LEDs where precise wavelengths were needed in the past. Finally, the present invention provides a method and apparatus for determining the operating wavelength of a light-emitting element such a light-emitting diode.

    7.
    发明专利
    未知

    公开(公告)号:AT223035T

    公开(公告)日:2002-09-15

    申请号:AT96917089

    申请日:1996-06-04

    Applicant: MASIMO CORP

    Abstract: The method and apparatus of the present invention provides a system wherein light-emitting diodes (LEDs) (162) can be tuned within a given range by selecting their operating drive current in order to obtain a precise wavelength. The present invention further provides a manner in which to calibrate and utilize an LED probe (150), such that the shift in wavelength for a known change in drive current is a known quantity. In general, the principle of wavelength shift for current drive changes for LEDs is utilized in order to allow better calibration and added flexibility in the use of LED sensors, particularly in applications when the precise wavelength is needed in order to obtain accurate measurements. The present invention also provides a system in which it is not necessary to know precise wavelengths of LEDs where precise wavelengths were needed in the past. Finally, the present invention provides a method and apparatus for determining the operating wavelength of a light-emitting element such a light-emitting diode.

    10.
    发明专利
    未知

    公开(公告)号:DK1238627T3

    公开(公告)日:2009-10-05

    申请号:DK02012382

    申请日:1996-06-04

    Applicant: MASIMO CORP

    Abstract: The method and apparatus of the present invention provides a system wherein light-emitting diodes (LEDs) (162) can be tuned within a given range by selecting their operating drive current in order to obtain a precise wavelength. The present invention further provides a manner in which to calibrate and utilize an LED probe (150), such that the shift in wavelength for a known change in drive current is a known quantity. In general, the principle of wavelength shift for current drive changes for LEDs is utilized in order to allow better calibration and added flexibility in the use of LED sensors, particularly in applications when the precise wavelength is needed in order to obtain accurate measurements. The present invention also provides a system in which it is not necessary to know precise wavelengths of LEDs where precise wavelengths were needed in the past. Finally, the present invention provides a method and apparatus for determining the operating wavelength of a light-emitting element such a light-emitting diode.

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