Abstract: The present invention relates to insert molding a glass lens or an inorganic material into a front housing unit. The glass lens or an inorganic material is aligned within the front housing unit so that it lies within the inside of the front housing unit. A thermobond adhesive or an adhesive promoter is applied onto the glass lens or the inorganic material. During molding a molten resin is injected into the space formed between the glass lens or the inorganic material and the front housing unit and flows around the glass lens or the inorganic material activating and liquefying the adhesive promoter or the thermobond adhesive and forming an insert molded part.

Abstract: The present invention relates to insert molding. A glass lens or an inorganic material is inserted into a front housing unit. The glass lens or an inorganic material is aligned within the front housing unit such that the glass lens or an inorganic material lies within the inside of the front housing unit. A thermobond adhesive is applied onto the glass lens or the inorganic material. During the insert molding process, a molten resin is injected into the space formed by the glass lens or the inorganic material and the front housing unit. The molten resin flows around the glass lens or the inorganic material and forms an insert molded part.