Opinion ID: 4523583
Heading Depth: 3
Heading Rank: 1

Heading: A luminaire, comprising:

Text: a heat spreader and a heat sink thermally coupled to the heat spreader, the heat sink being substan- tially ring-shaped and being disposed around and coupled to an outer periphery of the heat spreader; an outer optic securely retained relative to at least one of the heat spreader and the heat sink; and a light source disposed in thermal communication with the heat spreader, the light source comprising a plurality of light emitting diodes (LEDs) that are disposed on the heat spreader such that the heat spreader dissipates heat from the LEDs; wherein the heat spreader, the heat sink and the outer optic, in combination, have an overall height H and an overall outside dimension D such that the ratio of H/D is equal to or less than 0.25; wherein the combination defined by the heat spreader, the heat sink and the outer optic, is so dimensioned as to: cover an opening defined by a nominally sized four-inch can light fixture; and, cover an opening defined by a nominally sized fourinch electrical junction box. Id. at col. 10 ll. 20–40 (emphasis added to the disputed H/D limitation). Case: 19-1361 Document: 64 Page: 4 Filed: 04/08/2020 4 TECH. CONSUMER PRODS. v. LIGHTING SCI. GRP. CORP. Figures 5 and 12 of the ’968 patent show a top view and cross-sectional view, respectively, of an embodiment of the claimed luminaire 100, including LED 120, heat spreader 105, heat sink 110, and outer optic 115: Id. Fig 5; see also id. at col. 2 ll. 50–52. Id. Fig. 12 (annotated by the Board); see also id. at col. 3 ll. 1–2; J.A. 6. Case: 19-1361 Document: 64 Page: 5 Filed: 04/08/2020 TECH. CONSUMER PRODS. v. LIGHTING SCI. GRP. CORP. 5 In this embodiment, the heat sink 110 is annularly coupled to the heat spreader 105, which is covered by the outer optic 115. See id. at col. 3 l. 61–col. 4 l. 5. The specification describes that in the preferred embodiments, “the combination of the heat spreader 105, heat sink 110 and outer optic 115, have an overall height H and an overall outside dimension D such that the ratio of H/D is equal to or less than 0.25” in order to “provide for a low profile luminaire 100.” Id. at col. 4 ll. 1–5. Figures 4 and 28 depict the H and D dimensions, which in these embodiments constitute the height from the base of the heat sink/spreader to the top of the outer optic (H) and the diameter of the circular base (D): Id. Fig. 4. Id. Fig. 28; see also id. at col. 7 ll. 47–51. Case: 19-1361 Document: 64 Page: 6 Filed: 04/08/2020 6 TECH. CONSUMER PRODS. v. LIGHTING SCI. GRP. CORP.