| 摘要 |
<p>In a lid with a lens, a metal lid body has a cylinder, a first flange, and a second flange, a borosilicate glass lens being adhered to the second flange so as to cover a window hole. A method for manufacturing the lid with a lens is provided with: a first step for disposing a first mold that is fitted into the inner side of the cylinder, a second mold that is positioned on the outer side of the cylinder, lens material, and a cylindrical outer frame; a second step for heating to a molten state the lens material to form a lens and adhering the lens to the second flange; and a third step for removing the lid with a lens from the first mold, the second mold, and the outer frame. Silicon nitride is used as the material for the first mold, the second mold, and the outer frame.</p> |
