| 摘要 |
<p>A forehead thermometer has a body (10), a detecting unit (20) and a point light source (40). The detecting unit (20) and the point light source (40) are mounted adjacent to each other and are mounted in a front end (101) of the body (10). A first convex lens (30) is mounted between the detecting unit (20) and the front end (101) of the body (10) to focus the infrared energy from the forehead to the detecting unit (20) so that the measuring precision is enhanced and also provides focusing effect within a limited space. Therefore, the forehead thermometer is lighter and smaller.</p> |
