| 摘要 |
<p>A cup attaching apparatus is provided to ensure high visibility when seeing a lens image in accordance with lens transmittance while reducing damage to operator's eyes. A cup attaching apparatus comprises a main casing(2) and a white LED provided in the main casing as an illumination light source placed on the reference axis(L). A condensing lens(4) is located at an upper part of the main casing. The condensing lens serves to collimate illumination light from the light source into a parallel beam. On the upper surface of the condensing lens, three lens support pins(5) are arranged to center a lens on the reference axis. The main casing consists of a tapered inner wall with a cone-shaped hollow between the light source and the condensing lens. To prevent light emitted from the light source from being reflected on the inner wall, the inner wall is coated with a coating material.</p> |
