公开(公告)号：CA2221859A1

公开(公告)日：1996-12-19

申请号：CA2221859

申请日：1996-06-04

Applicant: MASIMO CORP

Inventor： LEPPER JAMES M JR ,  DIAB MOHAMED KHEIR

IPC: G01J3/12 ,  G01J3/26 ,  G01N21/31 ,  G02B5/20 ,  G02B5/28 ,  G02B1/00 ,  G02B5/00 ,  G02B1/10 ,  A61B5/14

Abstract: An optical filter used in applications involving spectroscopic measurements is fabricated by depositing layers of optical coatings onto a substrate. The layers are deposited so as to have a substantially constant thickness in a first direction along the surface of the substrate, and a gradually increasing thickness along a direction perpendicular to the first direction. The structure of the optical filter allows for large scale production of the filter so that costs in producing the filter are greatly reduced. The filter may be used in a variety of applications including, but not limited to chemical analysis, blood glucose monitoring, and the like.

公开(公告)号：DE69637999D1

公开(公告)日：2009-09-24

申请号：DE69637999

申请日：1996-06-04

Applicant: MASIMO CORP

Inventor： DIAB MOHAMMED K ,  KIANI-AZARBAYJANY ESMAIEL ,  RAGSDALE CHARLES ROBERT ,  LEPPER JAMES M JR

IPC: A61B5/00 ,  A61B5/145 ,  H05B44/00 ,  A61B5/1455 ,  A61B5/1495 ,  G01J3/10 ,  G01J3/28 ,  G01N21/01 ,  G01N21/25 ,  G01N21/27 ,  G01N21/31 ,  G01N21/39 ,  G01N21/64 ,  G05F3/08 ,  H05B37/02

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.

公开(公告)号：AT265176T

公开(公告)日：2004-05-15

申请号：AT96917037

申请日：1996-06-04

Applicant: MASIMO CORP

Inventor： KIANI-AZARBAYJANY ESMAIEL ,  DIAB MOHAMED KHEIR ,  LEPPER JAMES M JR

IPC: G01N21/35 ,  A61B5/00 ,  A61B5/145 ,  A61B5/1455

公开(公告)号：HK1049779A1

公开(公告)日：2003-05-30

申请号：HK03101733

申请日：2003-03-11

Applicant: MASIMO CORP

Inventor： DIAB MOHAMMED K ,  KIANI-AZARBAYJANY ESMAIEL ,  RAGSDALE CHARLES ROBERT ,  LEPPER JAMES M JR

IPC: H05B44/00 ,  A61B5/00 ,  A61B5/145 ,  A61B5/1455 ,  A61B5/1495 ,  G01J3/10 ,  G01J3/28 ,  G01N21/01 ,  G01N21/25 ,  G01N21/27 ,  G01N21/39 ,  G01N21/64 ,  G05F3/08 ,  H05B37/02

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.

公开(公告)号：ES2184868T3

公开(公告)日：2003-04-16

申请号：ES96917089

申请日：1996-06-04

Applicant: MASIMO CORP

Inventor： DIAB MOHAMED KHEIR ,  KIANI-AZARBAYJANY ESMAIEL ,  RAGSDALE CHARLES ROBERT ,  LEPPER JAMES M JR

IPC: A61B5/00 ,  H05B44/00 ,  A61B5/145 ,  A61B5/1455 ,  A61B5/1495 ,  G01J3/10 ,  G01J3/28 ,  G01N21/01 ,  G01N21/25 ,  G01N21/27 ,  G01N21/39 ,  G01N21/64 ,  G05F3/08 ,  H05B37/02

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.

公开(公告)号：DK0832421T3

公开(公告)日：2002-12-16

申请号：DK96917089

申请日：1996-06-04

Applicant: MASIMO CORP

Inventor： LEPPER JAMES M JR ,  RAGSDALE CHARLES ROBERT ,  KIANI-AZARBAYJANY ESMAIEL ,  DIAB MOHAMED KHEIR

IPC: A61B5/00 ,  H05B44/00 ,  A61B5/145 ,  A61B5/1455 ,  A61B5/1495 ,  G01J3/10 ,  G01J3/28 ,  G01N21/01 ,  G01N21/25 ,  G01N21/27 ,  G01N21/39 ,  G01N21/64 ,  G05F3/08 ,  H05B37/02

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.

公开(公告)号：AU712825B2

公开(公告)日：1999-11-18

申请号：AU5973096

申请日：1996-06-04

Applicant: MASIMO CORP

Inventor： KIANI-AZARBAYJANY ESMAIEL ,  DIAB MOHAMED KHEIR ,  LEPPER JAMES M JR

IPC: G01N21/35 ,  A61B5/00 ,  A61B5/145 ,  A61B5/1455

公开(公告)号：AU4106599A

公开(公告)日：1999-10-21

申请号：AU4106599

申请日：1999-07-22

Applicant: MASIMO CORP

Inventor： DIAB MOHAMED KHEIR ,  LEPPER JAMES M JR ,  RAGSDALE CHARLES ROBERT ,  KIANI-AZARBAYJANY ESMAIEL

IPC: A61B5/00 ,  A61B5/145 ,  A61B5/1455 ,  A61B5/1495 ,  G01J3/10 ,  G01J3/28 ,  G01N21/01 ,  G01N21/25 ,  G01N21/27 ,  G01N21/39 ,  G01N21/64 ,  G05F3/08 ,  H05B37/02

公开(公告)号：CA2221384A1

公开(公告)日：1996-12-19

申请号：CA2221384

申请日：1996-06-04

Applicant: MASIMO CORP

Inventor： LEPPER JAMES M JR ,  DIAB MOHAMED KHEIR

IPC: G01N21/35 ,  A61B5/00 ,  A61B5/145 ,  A61B5/1455 ,  G01N21/31 ,  G02B7/00 ,  A61B5/14 ,  G01N21/00 ,  G02B5/20

Abstract: A blood glucose monitoring system includes a broadband light source and a specially fabricated optical filter for modulating optical radiation to be transmitted through a fleshy medium. Optical radiation which passes through the fleshy medium is detected by an optical detector which generates an electrical signal indicative of the intensity of the detected light. Digital signal processing is performed on the electrical signal to extract those optical characteristics of the electrical signal due to the optical characteristics of the filter and constituents of the fleshy May 1, 1995 medium other than blood glucose concentration. The monitoring system employs a unique "double-log" transformation to minimize errors due to indeterminate path length variations of the optical radiation through the fleshy medium. The monitoring system further employs specialized signal processing to avoid inaccuracies due to the previously unidentified solvent effect which arises when glucose is dissolved into water.