Koito Manufacturing has patented a vehicle lamp with a unique light guide design. The elongate body of the light guide features reflective elements that increase the spread of light output in a horizontal direction, improving visibility. This innovation enhances safety and efficiency in automotive lighting systems. GlobalData’s report on Koito Manufacturing 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 Koito Manufacturing, AV lighting system was a key innovation area identified from patents. Koito Manufacturing's grant share as of January 2024 was 40%. Grant share is based on the ratio of number of grants to total number of patents.
Vehicle lamp with elongate light guide for increased light spread
A recently granted patent (Publication Number: US11885469B2) discloses a vehicle lamp design featuring a light guide with reflective elements that enhance the spread of light output. The lamp includes a lamp housing with a light-transmissive outer cover, a light guide with reflective tracks and elements, and a light source positioned at one end of the light guide. The reflective elements along the track increase the spread of light output in a direction perpendicular to the longitudinal axis of the lamp, creating a horizontal light output pattern within the lamp chamber.
The patent also describes a light guide design with reflective elements that increase the spread of light output in a horizontal direction. The reflective elements, including center and edge segments, are arranged along the reflective track of the elongate body. The edge segments, defined as triangular prisms, increase in depth as they extend away from the center segment, enhancing the spread of light output. The patent details various configurations and angles for the reflective elements to optimize the light output pattern, providing versatility in designing vehicle lamps for different applications such as headlamps or daytime running lamps.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
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.
