Abstract: An aperture module includes: a base; a rotating plate rotatably disposed on the base; and blades configured to form an incident hole and move by rotation of the rotating plate to change a size of the incident hole. The blades are disposed in an opening disposed inside the rotating plate.

Abstract: A shutter assembly includes: a driver for generating a rotation force; an input gear unit rotated by the driver; a transmission gear unit rotated by the input gear unit; an output gear unit rotated by the transmission gear unit; and a rotation unit that is rotated by the output gear unit between a position for transmitting light and a position for blocking light, wherein the transmission gear unit at least partially corresponds to a rotation path of the rotation unit and is spaced apart from a surface containing the rotation path along a direction of a central axis of the transmission gear unit.

Abstract: A camera shutter is provided that includes a first drive member operating an opening blade; a first hook holding the first drive member in a charged position; a closing member operating a closing blade; a second drive member displacing the closing blade to position closing the shutter opening by operating the closing member; a second hook holding the second drive member in a charged position, and a magnet controlling operative timings between the first and second hooks. In operation, the magnet displaces the second hook from a rest position to a charged position and releases the first drive member from the first hook, thereby moving the opening blade. After a predetermined time, the magnet releases the hooking between the second hook and the second driving member such that the closing member is operated by the second driving member, thereby moving the closing blade to the position closing the shutter opening.

Abstract: A blade drive device includes a shutter unit. The shutter unit includes: a blade swingably supported; and a plurality of boards defining a blade chamber, each having an opening opened and closed by the blade, and an actuator serving as a drive force of the blade and including a rotor having a rotary shaft. The rotary shaft penetrates to the blade chamber. An elastic member is housed in the blade chamber, and urges the rotary shaft in a thrust direction.

Abstract: A blade drive device includes a shutter unit. The shutter unit includes: a blade swingably supported; and a plurality of boards defining a blade chamber, each having an opening opened and closed by the blade. and an actuator serving as a drive force of the blade and including a rotor having a rotary shaft. The rotary shaft penetrates to the blade chamber. An elastic member is housed in the blade chamber, and urges the rotary shaft in a thrust direction.

Abstract: A lens cap module is provided and positioned at a holding stand. The lens cap module includes a plurality of leaf pieces, a switch and a gear transmission. The leaf pieces are slidably positioned at the holding stand, and the leaf pieces can come into contact with or separated from one another. The switch is sliadbly positioned at the holding stand, and the gear transmission is positioned between the leaf pieces and the switch. The switch drives the leaf pieces to rotate through the gear transmission. Thus, it saves much more space for the leaf pieces and spends much less time closing or opening the leaf pieces.