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公开(公告)号：US11884247B2
公开(公告)日：2024-01-30
申请号：US18136521
申请日：2023-04-19
Applicant: Littelfuse, Inc.
Inventor： Mindaugas Ketlerius , Mangirdas Rasiulis , Paulius Alisauskas
CPC classification number: B60S1/0833 , B60R11/00 , B60S1/0825 , B60S1/0837 , B60S1/0866 , B60S1/0881 , B60S1/0888 , G01K7/02 , G01K7/16 , G01K13/00 , B60R2011/0026 , G01N2201/062
Abstract: A rain and temperature sensing module including a housing having a cover plate formed of a transparent material, a printed circuit board disposed within the housing and having a light emitter, a light receiver, and a temperature sensing element disposed thereon, a transparent compound disposed within the housing and covering the light emitter, the light receiver, and the temperature sensing element, the transparent compound filling a space between the printed circuit board and the cover plate, wherein the transparent compound has a refractive index that is substantially equal to a refractive index of the cover plate, and wherein the transparent compound provides a thermally conductive medium between the cover plate and the temperature sensing element.
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公开(公告)号：US11738716B2
公开(公告)日：2023-08-29
申请号：US16821473
申请日：2020-03-17
Applicant: Littelfuse, Inc.
Inventor： Mindaugas Ketlerius , Mangirdas Rasiulis , Paulius Alisauskas
CPC classification number: B60S1/0833 , B60R11/00 , B60S1/0825 , B60S1/0837 , B60S1/0866 , B60S1/0881 , B60S1/0888 , G01K7/02 , G01K7/16 , G01K13/00 , B60R2011/0026 , G01N2201/062
Abstract: A rain and temperature sensing module including a housing having a cover plate formed of a transparent material, a printed circuit board disposed within the housing and having a light emitter, a light receiver, and a temperature sensing element disposed thereon, a transparent compound disposed within the housing and covering the light emitter, the light receiver, and the temperature sensing element, the transparent compound filling a space between the printed circuit board and the cover plate, wherein the transparent compound has a refractive index that is substantially equal to a refractive index of the cover plate, and wherein the transparent compound provides a thermally conductive medium between the cover plate and the temperature sensing element.
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公开(公告)号：US11623613B2
公开(公告)日：2023-04-11
申请号：US16821492
申请日：2020-03-17
Applicant: Littelfuse, Inc.
Inventor： Mindaugas Ketlerius , Mangirdas Rasiulis
Abstract: An optical rain sensor including a plurality of light detecting elements and a plurality of peripheral light emitting elements disposed on a printed circuit board (PCB) and surrounding a central light emitting element disposed on the PCB, wherein, in a first mode of operation, the central light emitting element is configured to emit light beams toward the plurality of light detecting elements, and wherein, in a second mode of operation, each of the peripheral light emitting elements is configured to emit light beams toward the plurality of light detecting elements.
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