Abstract: A zoned optical cup which mixes multiple channels of light to form a blended output, the device having discreet zones or channels including a plurality of reflective cavities each having a domed light converting appliance (DLCA) covering a cluster of LEDs providing a channel of light which is reflected upward by the cavities and mixed by angles walls and structures above the open top of the cavities in the common body of the cup.
Type:
Grant
Filed:
July 28, 2018
Date of Patent:
February 4, 2020
Assignee:
Ecosense Lighting Inc.
Inventors:
Raghuram L. V Petluri, Paul Kenneth Pickard
Abstract: A lens for preventing the build-up of snow and ice on LED traffic lights. The lens is hollow and fits over the LED signal beacon of the traffic light. The lens has a sidewall defined by a right circular conical frustum between a circular base and a plane spaced apart from the base and oriented at an oblique angle to the base. A convex face portion of the lens extends from the sidewall and closes the hollow space within the lens.