US Patent 11944129 Optical module and aerosol generating device including the same

An optical module includes: an infrared light emitter configured to emit infrared light; an infrared light receiver configured to receive the infrared light emitted from the infrared light emitter and generate a signal based on an amount of the received infrared light; a touch interface arranged between the infrared light emitter and the infrared light receiver, and configured to reflect the infrared light emitted from the infrared light emitter toward the infrared light receiver, and change an amount of the reflected infrared light as a touch input occurs; and a visible light emitter configured to emit visible light toward the touch interface such that the visible light is emitted outside the optical module by passing through the touch interface.