| 摘要 |
PURPOSE:To eliminate a process for polishing surfaces to be joined together and to reduce the cost of an optical element by adhering light transmitting surfaces having prescribed surface roughness to each other. CONSTITUTION:The surfaces 1b, 2b, of transparent materials 1, 2 to be joined together for a lens, a prism or the like are ground with diamond pellets #1,500 to regulate the surface roughness to 0.02-0.2mu average roughness along the center line, and the resulting optical surfaces are joined together with an adhesive 3. Since the adhesive fills well the recesses of the surfces 1b, 2b, satisfactory light transmittance is provided, and a polishing process can be eliminated. |
