公开(公告)号：US11712196B2

公开(公告)日：2023-08-01

申请号：US16759402

申请日：2018-11-01

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Arnoldus Johannes Martinus Jozeph Ras ,  Walter Hermans ,  Pascal Jean Henri Bloemen ,  Babu Varghese

IPC: A61B5/00 ,  A61B5/1455 ,  G02B5/02 ,  G02B15/02 ,  G02B27/18

CPC classification number: A61B5/441 ,  A61B5/00 ,  A61B5/0075 ,  A61B5/0077 ,  A61B5/1455 ,  A61B5/443 ,  G02B5/0278 ,  G02B15/02 ,  G02B27/18 ,  A61B2562/02

Abstract: The invention provides a system (1) comprising a sensor (100) for measuring a skin parameter, the sensor (100) comprising (i) a plurality of spatially separated light sources (110) configured to provide light source light (111), and (ii) a detector (120) configured at a first distance (d1) from each of the light sources (110), wherein the first distance (d1) is selected from the range of 5-80 mm, wherein the sensor (100) is configured to provide the light source light (111) with optical axes (OL) under an angle (α) relative to an optical axis (O2) of the detector (120) selected from the range of 10-80°, wherein the sensor (100) comprises at least three light sources (110), wherein the light sources (110) are configured to provide unpolarized light source light (111), wherein the sensor (100) further comprises (iii) a sensor opening (107) downstream of the light sources (110) and upstream of the detector (120) for propagation of the light source light (111) out of the sensor (100) and for entrance of reflected sensor light (111) into the sensor (100), and (iv) a sensor window (150), of a material (151) transmissive for the light source light (111), configured downstream of the light sources (110), configured upstream of the sensor opening (107), and configured upstream of the detector (120) with a second distance (d2) to the sensor opening (107) of at least 3 mm.

公开(公告)号：US11596349B2

公开(公告)日：2023-03-07

申请号：US16957132

申请日：2018-12-20

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Wouter Hendrik Cornelis Spoorendonk ,  Walter Hermans ,  Marco Baragona

IPC: A61B5/05 ,  A61B5/00 ,  A61B5/0537

Abstract: There is provided a system (100) and method for determining a water or lipid level of skin. The system (100) comprises at least two electrodes (108) suitable for contacting skin, and a signal generator (106) configured to generate an electrical signal at a frequency across the at least two electrodes (108). The system (100) is configured to measure a permittivity between the at least two electrodes (108). The system (100) is further configured to determine a water or lipid level of skin based on the measured permittivity and the frequency of the electrical signal.

公开(公告)号：US11712197B2

公开(公告)日：2023-08-01

申请号：US16957138

申请日：2018-12-27

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Cornelis Willem Hameetman ,  Walter Hermans ,  Arnold Johannes Martinus Jozeph Ras

IPC: A61B5/00

CPC classification number: A61B5/443 ,  A61B5/0077 ,  A61B5/448 ,  A61B2562/0233

Abstract: The invention provides a system (1) comprising a sensor (100) for measuring a skin parameter, the sensor (100) comprising a plurality of spatially separated light sources (110) configured to provide light source light (111), and one or more detectors (120) configured at a first distance (d1) from each of the light sources (110), wherein the first distance (d1) is selected from the range of 5-80 mm, wherein the sensor (100) is configured to provide the light source light (111) with optical axes (OL) under an angle (a) relative to an optical axis (O2) of the one or more detectors (120) selected from the range of 10-80°, wherein the sensor (100) comprises at least three light sources (110), wherein the light sources (110) are configured to provide unpolarized light source light (111), wherein the system (1) further comprises an analysis system (2) wherein the analysis system (2) is configured to generate a corresponding skin sensor value on the basis of a detector response of the one or more detectors (120) at one or more wavelengths selected from a spectral range of 350-780 nm.

公开(公告)号：US11596323B2

公开(公告)日：2023-03-07

申请号：US16957125

申请日：2018-12-27

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Wouter Hendrik Cornelis Spoorendonk ,  Walter Hermans ,  Marco Baragona ,  Anna Ezerskaya

IPC: A61B5/05 ,  A61B5/0537 ,  A61B5/1477 ,  A61B5/00

Abstract: There is provided a system (100) and method for determining a water or lipid level of skin. The system (100) comprises at least two electrodes (108) suitable for contacting skin, and a signal generator (106) configured to generate an electrical signal at a frequency across the at least two electrodes (108). The system (100) is configured to measure a conductivity between the at least two electrodes (108). The system (100) is further configured to determine a water or lipid level of skin based on the measured conductivity and the frequency of the electrical signal.