Abstract: A top plate unit includes a top plate on which an object to be heated is placed, an underframe for holding the top plate placed on an upper surface thereof, the underframe being adapted to be placed on an upper surface of a kitchen counter in a manner in which a lower surface of the underframe is held in contact with the upper surface of the kitchen counter, and a decorative panel 6 for covering an upper portion of an outer peripheral edge of the top plate. The decorative panel has an inwardly bent portion that has been formed by bending an outer peripheral edge portion of the decorative panel inwardly toward a lower surface of the underframe to hold the outer peripheral edge of the underframe.

Abstract: A method for manufacturing a polarizing lens that can form a uniform polarizing element on a curved surface of a lens base is provided. The polarizing lens is manufactured by the steps of: forming parallel grooves on a convex surface of a lens base by pressing the convex surface of the lens base onto a rotating surface of an elastic body and rotating the elastic body, the rotating surface having a length in a rotary shaft direction larger than a diameter of the lens base and holding abrasive grains; applying a polarizing dye on the convex surface of the lens base on which the parallel grooves have been formed; and fixing the polarizing dye to form a polarizing element on the convex surface of the lens base.

Abstract: A top plate unit 3 includes a top plate 5 on which an object to be heated is placed, an underframe 4 for holding the top plate 5 placed on an upper surface thereof, the underframe 4 being adapted to be placed on an upper surface of a kitchen counter 9 in a manner in which a lower surface of the underframe 4 is held in contact with the upper surface of the kitchen counter 9, and a decorative panel 6 for covering an upper portion of an outer peripheral edge of the top plate 5. The decorative panel 6 has an inwardly bent portion 8 that has been formed by bending an outer peripheral edge portion of the decorative panel 6 inwardly toward a lower surface of the underframe 4 to hold the outer peripheral edge of the underframe 4.