Incorrect lens setting detection device for wide-angle/telephotography convertible camera
AssigneeFuji Photo Film Co., Ltd.
InventorsTakashi Maemori, Kazuo Kamata
Life of this patent
Estimating the term…
Abstract
A camera has first and second switches which turn ON/OFF in association with a wide-angle/telephotography changeover member. The first switch turns ON when the wide-angle/telephotography changeover member is in the wide-angle position, and the second switch turns ON when the wide-angle/telephotography changeover member is in the telephoto position. An incorrect lens setting signal is generated when both the first and the second switches are OFF. Upon generation of the incorrect lens setting signal, an incorrect position display is actuated and the operation of the camera is stopped.
Claims9
A camera selectively performing either wide-angle photography or telephotography, comprising:
- a wide-angle/telephotography changeover member mounted on the camera for movement between a wide-angle position to set the wide-angle photography mode of the camera and a telephoto position to set the telephotography mode of the camera;
- a first switch for detecting when said wide-angle/telephotography changeover member is correctly set in said wide-angle position;
- a second switch for detecting when said wide-angle/telephotography changeover member is correctly set in said telephoto position;
- and
- detecting means for detecting whether said wide-angle/telephotography changeover member is correctly set either in said wide-angle position or in said telephoto position, depending on the ON/OFF state of said first and second switches, said detecting means generating an incorrect lens setting signal when said wide-angle/telephotography changeover member is not correctly set.
Dependencies are inferred from the claim text.