Optical-electronic battery indicator

Details Optical-electronic battery indicator Optical-electronic battery indicator

H - Electricity

01

M

H01M 10/48 (2006.01) G01N 21/43 (2006.01) G01R 31/36 (2006.01) H01M 10/06 (2006.01) H01M 6/50 (2006.01) H01M 10/44 (2006.01)

Patent

CA 2306147

An optical-electronic device measuring a charge level in a battery having a housing positioned within an interior of the battery, the housing having a cavity. A light source and a light receiving device are positioned within the cavity. A sensing surface and at least one reflecting surface are positioned within the cavity between the light source and the light receiving device. A box is formed with respect to the housing, the at least one reflecting surface dividing the box from the cavity. Light projected from the light source is transmitted from the sensing surface, where a portion of the light is refracted depending upon the charge level of the battery. The remaining light is transmitted to the at least one reflecting surface and then to the light receiving device. A level of charge is thereby determined based upon the amount of light sensed by the light receiving device.

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