| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a technique capable of enhancing imaging performance in an imaging optical element changing a direction of an optical axis by using two reflection planes. <P>SOLUTION: A first lens to which light from an object is made incident, a second lens emitting light and a coupling section coupling the first lens with the second lens are integrally formed with a transparent medium. The coupling section has curved shapes at a first bent portion and a second bent portion, respectively, from the first lens to the second lens. A first reflection film that reflects light made incident from the first lens toward the second bent portion is formed on an outer peripheral surface of the first bent portion while a second reflection film that reflects light reflected by the first reflection film toward the second lens is formed on an outer peripheral surface of the second bent portion. Light made incident to the first lens is emitted from the second lens and is subsequently imaged with an erect equal-magnification ratio while passing through inside the transparent medium from the first lens to the second lens via the first reflection film and the second reflection film. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
