An illumination device for a cooking zone element of a cooking hob covered by a transparent panel and a corresponding cooking zone element and cooking hob

The present invention relates to an illumination device (20) for a cooking zone element (10) provided for a cooking hob covered by a transparent panel. The illumination device (20) is provided for a cooking zone element (10) with a central cutout (40) in a central portion of said cooking zone element (10). The illumination device (20) includes at least one diffuser screen (14) arranged or arrangeable in an upper portion of the central cutout (40) of the cooking zone element (10) and parallel to the transparent panel of the cooking hob. The illumination device (20) includes at least one light source element (30) arranged or arrangeable below the central cutout (40) of the cooking zone element (10). The illumination device (20) includes an optical lens (28) enclosing an upper portion of the light source element (30). Further, the present invention relates to a corresponding cooking zone element and cooking hob.