摘要:
An image pickup apparatus which is improved in space efficiency for an optical system element, thereby reducing the apparatus size when a lens barrel is retracted. An image pickup apparatus includes a zoom lens barrel that moves between a retracted position and a shooting position in an optical axis direction to thereby change a photographing magnification. A prism bends an optical beam incident from a lens group of the lens barrel. A diaphragm-shutter element is capable of moving along the direction of the second optical axis together with a stepping motor for actuating the diaphragm-shutter element. The stepping motor is disposed, at least when the lens group is in the retracted position, at a position where the stepping motor overlaps the prism in parallel with the second optical axis.
摘要:
An image pickup apparatus which is improved in space efficiency for an optical system element, thereby reducing the apparatus size when a lens barrel is retracted. An image pickup apparatus includes a zoom lens barrel that moves between a retracted position and a shooting position in an optical axis direction to thereby change a photographing magnification. A prism bends an optical beam incident from a lens group of the lens barrel. A diaphragm-shutter element is capable of moving along the direction of the second optical axis together with a stepping motor for actuating the diaphragm-shutter element. The stepping motor is disposed, at least when the lens group is in the retracted position, at a position where the stepping motor overlaps the prism in parallel with the second optical axis.
摘要:
An image pickup apparatus that can accurately correct an error in the position of a taking lens due to a loss of synchronism of the stepping motor during opening and closing of the lens barrier. The position of a taking lens retractable into the body of the image pickup apparatus is detected. A reference position is provided on one of both sides of a section in which the lens barrier is driven to open and close, the one side being a side on which the lens barrier is not driven to open and close.
摘要:
The image pickup apparatus includes a lens barrel, and two barrier blade groups each configured to include a first barrier blade, a second barrier blade and a third barrier blade, each barrier blade group being movable between a closing position for covering a front face of the lens barrel and an opening position for opening the front face of the lens barrel. In each of the barrier blade groups at the opening position, the first and second barrier blades overlap with each other in an optical axis direction of the lens barrel, and the third barrier blade overlaps with the first and second barrier blades in a direction orthogonal to the optical axis direction without overlapping therewith in the optical axis direction.
摘要:
An image pickup apparatus is provided which enables a user to follow up an object while viewing a display screen, and can prevent an image shake from being reflected on the display screen. An image pickup device outputs a signal in response to light received from an object via a lens section unit. A drive ring is rotated by the driving force of the AF motor to enable the lens section unit to move in a direction along the optical axis, to thereby carry out focus adjustment based on the signal output from the pickup device. A LCD displays an image based on the signal output from the image pickup device. The LCD displays the image according to through display when the lens section unit is being moved in a direction of extension, and the through display by the LCD is restrained after the lens section unit is reversed and is moved in a direction of retraction and until it is stopped.
摘要:
An image pickup apparatus that can accurately correct an error in the position of a taking lens due to a loss of synchronism of the stepping motor during opening and closing of the lens barrier. The position of a taking lens retractable into the body of the image pickup apparatus is detected. A reference position is provided on one of both sides of a section in which the lens barrier is driven to open and close, the one side being a side on which the lens barrier is not driven to open and close.
摘要:
A lens barrel holding frame whose back surface wall is positioned at a position on the reflection optical element, in a state before moving to the retraction position, opposite to the lens unit in a direction of the first optical axis, wherein a through hole, through which the lens unit can retract along the first optical axis, is formed on the back surface wall of the lens barrel holding frame.
摘要:
A lens barrel capable of increasing the degree of freedom of installation of a detection unit and capable of making the lens barrel compact in size. The lens barrel includes third and fourth lens groups disposed adjacent to each other and movable in a common optical axis direction. In a first movement section, the third lens group moves in unison with the fourth lens group. In a second movement section adjacent to the first movement section, only the third lens group moves. When a photointerrupter fixed to a cover of the third lens group is light-shielded by a light shield plate formed on a lens holder of the fourth lens group, it is detected that a distance between the third and fourth lens groups becomes a predetermined distance.
摘要:
The image pickup apparatus includes a lens barrel, and two barrier blade groups each configured to include a first barrier blade, a second barrier blade and a third barrier blade, each barrier blade group being movable between a closing position for covering a front face of the lens barrel and an opening position for opening the front face of the lens barrel. In each of the barrier blade groups at the opening position, the first and second barrier blades overlap with each other in an optical axis direction of the lens barrel, and the third barrier blade overlaps with the first and second barrier blades in a direction orthogonal to the optical axis direction without overlapping therewith in the optical axis direction.
摘要:
An image pickup apparatus is provided which enables a user to follow up an object while viewing a display screen, and can prevent an image shake from being reflected on the display screen. An image pickup device outputs a signal in response to light received from an object via a lens section unit. A drive ring is rotated by the driving force of the AF motor to enable the lens section unit to move in a direction along the optical axis, to thereby carry out focus adjustment based on the signal output from the pickup device. A LCD displays an image based on the signal output from the image pickup device. The LCD displays the image according to through display when the lens section unit is being moved in a direction of extension, and the through display by the LCD is restrained after the lens section unit is reversed and is moved in a direction of retraction and until it is stopped.