Acuity Brands has filed a patent for a light fixture that offers enhanced resistance to water ingress and improved thermal management. The fixture includes features such as a support groove, a lens, and a sealing member to prevent water from entering. The design also limits thermal expansion and contraction of the lens over a wide range of temperatures. GlobalData’s report on Acuity Brands gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Acuity Brands, Electric load control systems was a key innovation area identified from patents. Acuity Brands's grant share as of September 2023 was 79%. Grant share is based on the ratio of number of grants to total number of patents.
Water-resistant and thermally-managed outdoor light fixture
A recently filed patent (Publication Number: US20230313983A1) describes a new design for a light fixture that is specifically designed to prevent water ingress. The light fixture includes a housing with a support groove, at least one light source, a lens, and a sealing member. The sealing member is positioned within the support groove and forms a seal against water ingress, ensuring that the light source remains protected.
The patent claims also describe additional features of the light fixture. For example, the sealing member is made of a durable rubber acrylic material. In some embodiments, there are both a top sealing member and a bottom sealing member within the support groove, further enhancing the water resistance of the fixture. The top sealing member may be a gasket tape.
The housing of the light fixture includes a support groove on one side wall, opposite from the top end of the housing. In some embodiments, there may be a second support groove on the opposite side wall, providing additional support for a mounting substrate for the light source. The bottom portion of the support groove may have ribs to position the sealing member against the lens.
Another aspect of the patent is the design of the end cap attached to the housing. The end cap includes a face with an outer wall and an inner wall, and a sealing member is positioned between these walls and between the face and the first end of the housing, forming a seal against water ingress. The height of the inner wall may be less than the height of the outer wall. The end cap may also have projections that help position the first end of the housing between the outer and inner walls.
The top end of the housing has a non-linear profile and may include an engagement feature that interacts with a projection on the end cap. Additionally, the top end may have fins that contact a surface of a driver positioned within the housing area.
In some embodiments, the light fixture may have multiple end caps and sealing members to provide water resistance at both ends of the housing. The sealing member may have a body with a central aperture and an outer wall that is positioned against the outer wall of the end cap.
Overall, this patent describes a light fixture design that effectively prevents water ingress, ensuring the longevity and functionality of the light source.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
