Invention Grant
- Patent Title: High efficiency vehicle backup lamps
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Application No.: US17224228Application Date: 2021-04-07
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Publication No.: US11519582B2Publication Date: 2022-12-06
- Inventor: Linsheng Chen
- Applicant: Ford Global Technologies, LLC
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Eversheds Sutherland (US) LLP
- Agent Frank Lollo
- Main IPC: F21S43/20
- IPC: F21S43/20 ; F21V5/04 ; F21S43/31 ; F21S43/14 ; F21W103/45

Abstract:
A backup light apparatus provides a somewhat uniform distribution of light intensity in an area within the view of a backup camera of a vehicle. The backup light apparatus may satisfy various governmental and manufacturer safety rules. The backup light apparatus has a pillow lens array, a first collimator, a prism lens array, and a second collimator. The first collimator directs light in the direction of its optical axis to the pillow lens array. The second collimator directs light in the direction of its optical axis to the prism lens array. The pillow lens array has an array of pillow lenses facing away from the first collimator. The prism lens array has an array of prism lenses facing away from the second collimator. The prism lenses direct light at varying angles relative to the optical axis of the second collimator.
Public/Granted literature
- US20220325867A1 High Efficiency Vehicle Backup Lamps Public/Granted day:2022-10-13
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