Camera, posture change detection and posture restoration thereof

A method for restoring posture of an operation part in a camera, wherein, the camera is provided with a device for detecting posture change, the device for detecting posture change includes a photo interrupter and a photoelectric baffle structure,

• the photoelectric baffle structure includes a base and a plurality of baffle pieces fixed on the base, the plurality of baffle pieces include a first baffle piece and second baffle pieces other than the first baffle piece, the first baffle piece has a length specification different from that of the second baffle piece, and there is a gap between every two adjacent baffle pieces,
• an output signal from the photo interrupter changes according to the aligning relationship between the photo interrupter and the plurality of baffle pieces,
• one of the photoelectric baffle structure and the photo interrupter follows the motion of the operation part of the camera while the other one remains unmoved, so that the output signal from the photo interrupter changes according to a posture change of the operation part;
• and
• wherein, the method comprises:
• determining that the operation part has changed from a first posture into a second posture when a change of the output signal from the photo interrupter is detected;
• adjusting the operation part from the second posture into a preset initial posture if the posture change of the operation part does not relate to an user instruction, wherein, the photo interrupter is aligned with an edge at one side of the first baffle piece when the operation part is in the initial posture;
• and
• adjusting the operation part from the initial posture into the first posture according to a pre-recorded relative positional relationship between the first posture and the initial posture.

A device for restoring posture of an operation part in a camera, wherein, the camera is provided with a device for detecting posture change, the device for detecting posture change includes an photo interrupter and an photoelectric baffle structure,

• the photoelectric baffle structure includes a base and a plurality of baffle pieces fixed on the base, the plurality of baffle pieces include a first baffle piece and second baffle pieces other than the first baffle piece, the first baffle piece has a length specification different from that of each of the second baffle piece, and there is a gap between every two adjacent baffle pieces,
• an output signal from the photo interrupter changes according to the aligning relationship between the photo interrupter and the plurality of baffle pieces,
• one of the photoelectric baffle structure and the photo interrupter follows the motion of the operation part of the camera while the other one remains unmoved, so that the output signal from the photo interrupter changes according to a posture change of the operation part;
• the device includes a processor, wherein, by reading and executing machine executable instructions corresponding to control logic for restoring posture stored on a machine readable storage medium, the processor is caused to:
• determine that the operation part has changed from a first posture into a second posture when a change of the output signal from the photo interrupter is detected;
• adjust the operation part from the second posture into a preset initial posture if the posture change of the operation part does not relate to an user instruction, wherein, the photo interrupter is aligned with the edge at one side of the first baffle piece when the operation part is in the initial posture;
• and
• adjust the operation part from the initial posture into the first posture according to a pre-recorded relative positional relationship between the first posture and the initial posture.