Wide angle optical system for LED array
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United States of America Patent
Stats
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Dec 27, 2016
Grant Date -
Feb 11, 2016
app pub date -
Oct 19, 2015
filing date -
Apr 3, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An optical system includes a lens and reflector configured to form a wide angle beam from light emitted from an array of LEDs by modifying only the component of emitted light that diverges from a reference plane. A central portion of the lens collimates emitted LED light relative to the reference plane containing the optical axes of the LEDs. A peripheral portion of the lens re-directs emitted LED light into an orientation perpendicular to the reference plane. The reflector surrounds the periphery of the lens and re-directs light from the peripheral portion of the lens into a direction parallel with the reference plane. The linear array of LEDs may include sub arrays projecting away from a support plane to enhance visibility of a resulting light signal from vantage points close to or aligned with the support plane.
First Claim
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International Classification(s)
- F21V:FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES....
- F21W:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L,....
- F21Y:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L,....
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- B60Q:ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE....
- F21S:NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF
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