公开(公告)号：US20220268625A1

公开(公告)日：2022-08-25

申请号：US17651308

申请日：2022-02-16

Applicant: Alcon Inc.

Inventor： Christopher Carl Jung

IPC: G01J1/02 ,  A61F9/007

Abstract: Certain embodiments provide a self-checking photoelectric sensor that is configured to determine a characteristic (e.g., an amount of blockage and/or wellness/decay) of an optical pathway (e.g., an electro-optical pathway). An example method generally includes increasing, over a time period that starts at a first time, a current input to a light emitting element (LEE). The method generally includes receiving, by a light detection element, an output of the LEE via the optical pathway during the time period. The method generally includes converting, during the time period, the LEE output to a voltage output. The method generally includes determining a second time in the time period when the voltage output crosses a threshold. The method generally includes determining the characteristic of the optical pathway between the LEE and the light detection element based on a difference between the second time and the first time.

公开(公告)号：US11754438B2

公开(公告)日：2023-09-12

申请号：US17651308

申请日：2022-02-16

Applicant: Alcon Inc.

Inventor： Christopher Carl Jung

IPC: G01J1/02 ,  A61F9/007 ,  G01J1/08 ,  G01N21/94 ,  G01N21/15

CPC classification number: G01J1/0228 ,  A61F9/00736 ,  G01J2001/083 ,  G01N21/15 ,  G01N21/94 ,  G01N2021/157 ,  G01N2021/945 ,  G01N2201/062

Abstract: Certain embodiments provide a self-checking photoelectric sensor that is configured to determine a characteristic (e.g., an amount of blockage and/or wellness/decay) of an optical pathway (e.g., an electro-optical pathway). An example method generally includes increasing, over a time period that starts at a first time, a current input to a light emitting element (LEE). The method generally includes receiving, by a light detection element, an output of the LEE via the optical pathway during the time period. The method generally includes converting, during the time period, the LEE output to a voltage output. The method generally includes determining a second time in the time period when the voltage output crosses a threshold. The method generally includes determining the characteristic of the optical pathway between the LEE and the light detection element based on a difference between the second time and the first time.

公开(公告)号：US20210151991A1

公开(公告)日：2021-05-20

申请号：US17092756

申请日：2020-11-09

Applicant: Alcon Inc.

Inventor： Geoffrey C. Jawidzik ,  Christopher Carl Jung

IPC: H02J7/00 ,  H02J7/34 ,  H02J7/02 ,  G01R31/392 ,  A61F9/007

Abstract: Devices and methods are disclosed for checking the state of health of rechargeable batteries. An electronic device comprises a plurality of rechargeable batteries and a controller, wherein the controller comprises a battery fuel gauge for performing a battery state of health check. The controller is configured to direct charge to connected loads and to transfer charge from the battery being checked to another battery during a battery state of health check. An example method comprises charging one battery to a full state, leaving another battery in a depleted state, and performing a state of health check on the battery in the full state while transferring charge via an intermediate controller from the battery in the full state to the battery in the depleted state.