| 摘要 |
<p>Changing the field of view of a cameraAn optical system for rotating and widening the effective field of view of a camera, particularly on a mobile phone, comprises a flat reflective surface 3, which may be part of a prism, and convex 1 and concave 2 surfaces. Additionally there may be an extra concave lens element. The system is preferably an attachment.</p> |
