Invention Grant
- Patent Title: In-roadway warning light apparatus with moisture protection
- Patent Title (中): 道路警示灯具防潮保护
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Application No.: US12542550Application Date: 2009-08-17
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Publication No.: US08454188B1Publication Date: 2013-06-04
- Inventor: Michael A Harrison , Dave Michaelson
- Applicant: Michael A Harrison , Dave Michaelson
- Applicant Address: US CA Santa Rosa
- Assignee: Light Guard Systems, Inc.
- Current Assignee: Light Guard Systems, Inc.
- Current Assignee Address: US CA Santa Rosa
- Agent Larry D. Johnson
- Main IPC: E01F9/00
- IPC: E01F9/00
Abstract:
An in-roadway warning light (IRWL) apparatus incorporates a dove prism in the light beam path to embed an air gap inside the IRWL signal head housing and ensure that light from the LEDs is projected in the desired direction, while simultaneously providing moisture protection for the LEDs and associated electronics in the housing.
Information query
