COOKING DEVICE WITH LIGHT PATTERN PROJECTOR AND CAMERA

• US 20170115008A1
• Filed: 06/03/2015
• Published: 04/27/2017
• Est. Priority Date: 06/05/2014
• Status: Active Grant

• Current Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Original Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Inventors: Erbe, Sebastian, Khn, Robert, Vollmar, Daniel, Neumayer, Dan
• Granted Patent: US 10,228,145 B2
• Time in Patent Office: Days
• CPC Class Codes: F24C 7/081 on stoves
• CPC Class Codes: F24C 7/085 on baking ovens

Abstract

A cooking appliance includes a cooking chamber having a loading opening which is closable by a door. A light pattern projector is arranged in a fixed manner relative to the cooking chamber and configured to generate and radiate a light pattern into the cooking chamber. A camera captures images from a region being irradiated by the light pattern projector when the cooking chamber is closed, and is arranged in a fixed manner relative to the cooking chamber, Coupled to the camera is an analysis facility which repeatedly calculates a three-dimensional shape by light pattern analysis of an object located in the region being irradiated by the light pattern projector during operation of the cooking appliance.

Claims

1-12. -12. (canceled)

13. A cooking appliance, comprising:

a cooking chamber having a loading opening which is closable by a door;

a light pattern projector arranged in a fixed manner relative to the cooking chamber and configured to generate and radiate a light pattern into the cooking chamber;

a camera for capturing images from a region being irradiated by the light pattern projector even when the cooking chamber is closed, said camera being arranged in a fixed manner relative to the cooking chamber; and

an analysis facility coupled to the camera and configured to repeatedly calculate a three-dimensional shape by light pattern analysis of an object located in the region being irradiated by the light pattern projector during operation of the cooking appliance.

14. The cooking appliance of claim 13, wherein an optical axis of the light pattern projector and an optical axis of the camera extend at an angle of between 20°

and 30°

to each other.

15. The cooking appliance of claim 13, further comprising a ceiling, said light pattern projector and said camera being arranged behind the ceiling of the cooking chamber.

16. The cooking appliance of claim 13, wherein the light pattern projector is configured to radiate different light patterns into the cooking chamber.

17. The cooking appliance of claim 13, wherein the light pattern projector includes at least one image point-type screen for shaping the light pattern.

18. The cooking appliance of claim 13, further comprising a muffle having predefined calibration markings delimiting the cooking chamber.

19. The cooking appliance of claim 13, wherein the analysis facility is configured to recognize a type of food.

20. The cooking appliance of claim 13, wherein the analysis facility is configured to recognize a type of food support.

21. The cooking appliance of claim 13, wherein the analysis facility is configured to recognize a core temperature of the object.

22. The cooking appliance of claim 13, further comprising a control facility coupled to the analysis facility and configured to adjust operation of the cooking appliance based on at least one object parameter determined by the analysis facility.

23. The cooking appliance of claim 13, further comprising a screen configured to display at least one three-dimensional image of the object captured by the camera.

24. The cooking appliance of claim 13, wherein the light pattern projector is configured to illuminate the cooking chamber.