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Light engines with dynamically controllable light distribution

專利號(hào)
US10785847B2
公開日期
2020-09-22
申請(qǐng)人
Lumileds LLC（US CA San Jose）
發(fā)明人
Frederic Stephane Diana; Yifeng Qiu; Michael Wasilko; Nazila Soleimani; Jeroen Den Breejen; Alan Andrew McReynolds; Gregory Guth
IPC分類
H05B47/105; F21S4/20; F21V29/70; F21V23/04
技術(shù)領(lǐng)域
light,fixture,guide,may,in,leds,be,led,pan,or
地域： CA CA San Jose

摘要

An apparatus is disclosed comprising: a light guide having an opening formed thereon; an illumination source at least partially disposed in the opening, the illumination source including a plurality of LEDs disposed on a flexible circuit that is wrapped around a base, which may be thermally conductive, the base having a central opening, and the flexible circuit including a plurality of legs, each leg including electrical wiring for independently operating a different one of the LEDs, each leg being wrapped around a bottom edge of the base, and into the central opening, to come above the illumination source and connect to a control board that is situated above the illumination source; and a heat-dissipating element disposed over the illumination source, the heat-dissipating element being thermally coupled to the base to dissipate heat generated by the LEDs that is supplied to the heat dissipating element via the base.

說明書

FIG. 10A shows a planar cross-sectional view of a light fixture 1000, according to aspects of the disclosure. The light fixture 1000 differs from the light fixture 300 of FIG. 3 in that in it includes a chamfered light guide 1002. As illustrated, the light fixture 1000 includes a disk-shaped light guide 1002, having an interior opening 1004. A illumination source 200 may be at least partially disposed in the interior opening 1004, and a cap 322 may be disposed underneath the light source, while a reflector 320 is disposed between the cap 322 and the illumination source 200, as shown.

權(quán)利要求

1
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