| 摘要 |
<p>PROBLEM TO BE SOLVED: To make a thin camera design and the manufacture of a cemera of the thin camera design possible by a method wherein a first surface, which has a diffraction means incorporated integrally with a lensled and is a convex spherical surface, is formed and a second surface, which is a non-spherical surface, is formed on the opposite side to the first surface. SOLUTION: A lensled 10 is formed into a structure, wherein a diffraction surface 18 is formed on a refracted spherical surface 20. A second surface 22, which is a non-spherical surface, is formed on the opposite side to the surface 18. The second surface 22 is formed into a projected shape in a curved surface part 14 and is formed into a recessed shape in a curved surface part 12. The surface 22 is constituted of the non-spherical surface, on which a curved surface part 16 is turned into the inflection point of the surface 22, and the surfaces 20 and 22 are substantially formed vertically to the optical axis 24 of the lensled 10. Thereby, a camera system can be formed into a very small size and a flat form.</p> |
