A polarizing sheet (A) includes a polarizing film (2) and cellulose triacetate films (6, 6') bonded to opposing surfaces of the polarizing film (2) with adhesive layers (4, 4') interposed, respectively. A thermoplastic film (10) is stacked on the exposed surface of one (6') of the cellulose triacetate films. Another cellulose triacetate film (14) free of an ultraviolet absorber is bonded to the exposed surface of the other cellulose triacetate film (6) of the polarizing sheet with an adhesive (12) containing an organic photochromic compound, to thereby form a laminate sheet. The laminate sheet is placed in an injection mold, and a molding resin material fusible with the thermoplastic film (10) is injected over the thermoplastic film.