| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an infrared lens which secures a sufficient amount of infrared rays incident on a light-receiving element, and can form a clear infrared image. <P>SOLUTION: The infrared lens which includes in order from an object side: a first lens unit having positive refractive power; a second lens group which includes subsequent lens units and has the subsequent lens units arranged on an image side from the first lens unit; and a third lens group arranged on an image side from the second lens group displaces the subsequent lens units in a direction perpendicular to the optical axis, and corrects image blurring. <P>COPYRIGHT: (C)2012,JPO&INPIT |
