Multifocal lens
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United States of America Patent
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-
Aug 6, 2024
Grant Date -
Oct 5, 2023
app pub date -
Mar 29, 2022
filing date -
Mar 29, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A multifocal lens is revealed. The multifocal lens includes a lens with an incident curved surface and an emergent curved surface arranged opposite to each other. The incident curved surface consists of a plurality of incident areas disposed circularly around an axis of the lens and each of the incident areas is formed by a plurality of incident surfaces. The two adjacent incident surfaces belonged to the same incident area are not in contact with each other optimally and the incident areas have respective focal points correspondingly. Thereby light with different properties emitted from a plurality of light sources corresponding to the focal points of the respective incident areas is passed through the multifocal lens and projected to have preset light patterns for warning or decoration.
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