公开(公告)号：US11306897B2

公开(公告)日：2022-04-19

申请号：US17067744

申请日：2020-10-11

申请人： EcoSense Lighting Inc.

发明人： Chris P. Latsis ,  Elizabeth Rodgers ,  Paul Pickard ,  Sana Ashraf ,  Xin Zhang ,  Richard Wu ,  Raghuram L. V. Petluri

IPC分类号： F21V7/04 ,  F21V5/10 ,  F21V9/38 ,  F21V13/14 ,  F21V7/00 ,  F21Y115/10 ,  F21V9/08

摘要： Lighting system including bowl reflector, visible-light source, central reflector, and optically-transparent body. Bowl reflector has central axis, and rim defining emission aperture, and first visible-light-reflective surface defining portion of cavity in bowl reflector. First visible-light-reflective surface includes parabolic surface. Visible-light source is located in cavity and configured for generating visible-light emissions from semiconductor light-emitting device. Central reflector includes second visible-light-reflective surface, having convex flared funnel shape and having first peak facing toward visible-light source. Optically-transparent body has first base being spaced apart from second base and having side wall extending between first and second bases. Concave flared funnel-shaped surface of second base faces toward convex flared funnel-shaped second visible-light reflective surface of central reflector. First base includes central region having convex paraboloidal-shaped surface and second peak facing toward visible-light source.

公开(公告)号：US20210207787A1

公开(公告)日：2021-07-08

申请号：US17067744

申请日：2020-10-11

申请人： EcoSense Lighting Inc.

发明人： Chris P. Latsis ,  Elizabeth Rodgers ,  Paul Pickard ,  Sana Ashraf ,  Xin Zhang ,  Richard Wu ,  Raghuram L.V. Petluri

IPC分类号： F21V7/04 ,  F21V5/10 ,  F21V9/38 ,  F21V13/14

摘要： Lighting system including bowl reflector, visible-light source, central reflector, and optically-transparent body. Bowl reflector has central axis, and rim defining emission aperture, and first visible-light-reflective surface defining portion of cavity in bowl reflector. First visible-light-reflective surface includes parabolic surface. Visible-light source is located in cavity and configured for generating visible-light emissions from semiconductor light-emitting device. Central reflector includes second visible-light-reflective surface, having convex flared funnel shape and having first peak facing toward visible-light source. Optically-transparent body has first base being spaced apart from second base and having side wall extending between first and second bases. Concave flared funnel-shaped surface of second base faces toward convex flared funnel-shaped second visible-light reflective surface of central reflector. First base includes central region having convex paraboloidal-shaped surface and second peak facing toward visible-light source.

公开(公告)号：US10801696B2

公开(公告)日：2020-10-13

申请号：US16401170

申请日：2019-05-02

申请人： EcoSense Lighting Inc.

发明人： Sana Ashraf ,  Xin Zhang ,  Paul Pickard ,  Raghuram L. V. Petluri ,  Elizabeth Rodgers ,  Richard Wu

IPC分类号： F21V7/04 ,  F21V13/12 ,  F21V7/00 ,  F21V9/08 ,  F21Y115/10 ,  F21V9/30

摘要： Lighting system. Bowl reflector has rim defining horizon and aperture, first light-reflective surface defining cavity, first parabolic surface. Funnel reflector has flared funnel-shaped body: central axis; second light-reflective surface aligned along axis; second parabolic surface; tip located within cavity along axis; profile including parabolic curves converging towards tip. Optically-transparent body aligned with second light-reflective surface along axis; with: bases spaced apart by side surface; first base facing light source. Second parabolic surface has ring of focal points at first position within cavity, equidistant from second parabolic surface; ring encircles first point on axis. Second parabolic surface has axes of symmetry intersecting with and radiating in directions all around axis from second point. Axes of symmetry intersect with focal points. Second point on axis between first point and horizon. Light source located for causing light emissions reflected by second parabolic surface to have partially-collimated distribution.