US 12,426,135 B2
Transparent metal coatings for camera pane in microwave oven
Junxiu Liu, Shenzhen (CN); Zhiying Wang, Shenzhen (CN); and Lian Qiang Zhou, Shenzhen (CN)
Assigned to Whirlpool Corporation, Benton Harbor, MI (US)
Filed by WHIRLPOOL CORPORATION, Benton Harbor, MI (US)
Filed on Jan. 31, 2022, as Appl. No. 17/588,812.
Claims priority of application No. 202110133827.X (CN), filed on Feb. 1, 2021.
Prior Publication US 2022/0248508 A1, Aug. 4, 2022
Int. Cl. H05B 6/64 (2006.01); F21V 15/01 (2006.01); H04N 23/52 (2023.01); H04N 23/57 (2023.01)
CPC H05B 6/6447 (2013.01) [F21V 15/01 (2013.01); H04N 23/52 (2023.01); H04N 23/57 (2023.01); H05B 6/6444 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A heating appliance, comprising:
a housing having interior walls with interior surfaces defining a cooking chamber for heating food;
a camera positioned within the housing to capture images of food in the chamber; and
a shield positioned between the camera and the food, and aligned flush with the interior walls, the shield having a body with a first surface facing an area within the chamber for receiving food and a second opposite surface facing the camera, the shield including a first transparent thermally conductive and microwave reflective metal coating both of the first surface and the second surface, such that the shield dissipates heat and reflects microwave radiation to protect the camera.