Patent ID: 7682092
Filing Date: 2010-03-23
Classification: G03B

Abstract:
1. A method for controlling exposure in a camera having aperture, comprising: providing a casing having casing walls; providing a first shutter blade having a first end and a second end, the first end connected to an actuator for rotational movement between a first position and a second position; rotatably connecting a second shutter blade to the second end of the first shutter blade, wherein when the first shutter blade is located in the first position, the first and second shutter blades form a folded shape over the aperture, and when the first shutter blade is located in the second position, both the first and second shutter blades are located away from the aperture and the first and second shutter blades form an extended shape with a reduced waist section, when the first shutter blade moves between the first position and the second position, the casing walls guide the second shutter blade.