Aerosol sensor and an integrated optical component thereof
Inventors
Yang, Fan • Hu, Yu • Zhu, Yongbing • Zhang, Bo • ZHANG, Jianbiao • Liu, Kai
Assignees
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Publication Number
US-12748055-B2
Publication Date
2026-09-29
Expiration Date
Abstract
An integrated optical component coupled to a circuit board of an aerosol sensor is provided. The integrated optical component comprising a medium including a first, second plane, third plane, wherein the first plane is adjacent to a detection area, the second plane is positioned about a photosensor, and the third plane is opposite an angle formed by an intersection of the first and second plane. The integrated optical component further comprising a first lens configured on the first sidewall, the first lens configured to receive incident light from the detection area and focus the incident light onto a reflector through the medium, the reflector configured on the third sidewall, the reflector configured to reflect the incident light towards a second lens, and the second lens configured on the second sidewall, the second lens configured to receive the incident light from the reflector and focus the incident light to the photosensor.
Core Innovation
The invention is an integrated optical component for an aerosol sensor. A first lens receives incident light from a detection area and focuses it through a medium onto a reflector; the reflector directs the light toward a second lens, which focuses it to a photosensor. The component includes first, second, and third planes and is coupled to a circuit board through a holder that positions it stationary relative to a light source and the photosensor.
The aerosol sensing system and aerosol sensor use this optical path to direct projected light from the detection area to the photosensor, which converts the light into an electric signal; the circuit board generates aerosol detection signals. The partial content also describes signals associated with particle number, particle size, and particle concentration, and a shield protecting the photosensor, circuit board, and light source. The background section is not included, so the problem being solved is not explicitly described in patent.
Claims Coverage
The three independent claims cover an integrated optical component, an aerosol sensing system, and an aerosol sensor.
Integrated optical component with holder positioning
Independent claim 1 covers a medium with three planes, a first lens that focuses incident light from the detection area onto a reflector, and a second lens that focuses reflected light to the photosensor. A holder with a fixture positions the component stationary relative to the light source and photosensor, and part of the holder comprises the detection area.
Aerosol sensing system with optical routing
Independent claim 7 covers a system in which the integrated optical component directs light from a detection area through a first lens and reflector to a second lens and photosensor. The photosensor converts the light into an electric signal, the holder positions the component stationary relative to the light source and photosensor, and a shield protects the photosensor, circuit board, and light source from damage.
Aerosol sensor generating detection signals
Independent claim 18 covers a circuit board configured to generate aerosol detection signals based at least in part on electric signals from a photosensor. The integrated optical component directs light from the detection area through a first lens and reflector to a second lens and photosensor; a holder positions the component, and a shield protects the photosensor, circuit board, and light source from damage.
Together, the independent claims cover the optical component and its holder-based positioning, the aerosol sensing system that converts received light into an electric signal, and the aerosol sensor that generates aerosol detection signals.
Stated Advantages
A shield protects the photosensor, circuit board, and light source from damage.
Documented Applications
Aerosol detection in a detection area, including determining aerosol presence and signals associated with particle number, particle size, or particle concentration.
Battery thermal-runaway monitoring.
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