Patent ID: 11944125
Assignee: PHILIP MORRIS PRODUCTS S.A.
Field: Other consumer goods (Other fields)
Classification: CPC A  G | IPC A

Claim 17:
18. An aerosol generating device, comprising:
a power supply;
control electronics operably coupled to the power supply;
a receptacle configured to receive a cartridge having a storage compartment containing a liquid composition comprising an aerosol-forming substrate;
a light source operably coupled to the control electronics and positioned and oriented to emit light into the storage compartment of the cartridge; and
a detector operably coupled to the control electronics and positioned and oriented to detect the light emitted from the light source after the light has entered the storage compartment,
wherein the light source and the detector are both configured to be located adjacent to a same side of a storage compartment of a cartridge when a cartridge is received within the receptacle, and
wherein a surface of the storage compartment opposite the light source is configured to absorb light emitted into the storage compartment from the light source.