摘要:
An optical apparatus is disclosed in which a press contact force for bringing a vibrator and a contact member into press contact with each other is generated between them, and thereby the reaction force of the press contact force is difficult to transmit outward. The optical apparatus comprises a lens holding member which holds a lens, and a vibration type linear actuator which drives the lens holding member in an optical axis direction. The vibration type linear actuator includes a vibrator on which vibration is produced through an electromechanical energy conversion action and a contact member which is in press contact with the vibrator. The vibrator and the contact member is in press contact with each other by a magnetic force acting between them.
摘要:
An optical apparatus is disclosed which can suppress an increase in size thereof even if its lens is driven in a large movable range. The apparatus comprises a first linear actuator which includes a first member to which an electrical signal is input and a second member whose length in an optical axis direction is longer than the first member, and drives a first lens in a first movable range in the optical axis direction. The apparatus comprises a second linear actuator which includes a third member to which an electrical signal is input and a fourth member whose length in the optical axis direction is longer than the third member, and drives a second lens in a second movable range in the optical axis direction. The first member is moved together with the first lens in the optical axis direction, with respect to the second member.
摘要:
A compact optical apparatus with a high durability is disclosed. The optical apparatus comprises a first lens which is moved in an optical axis direction for varying magnification, and a second lens which is moved in the optical axis direction for focusing. The apparatus further comprises a vibration type linear actuator which drives the first lens with vibration produced through an electromechanical energy conversion action, and an electromagnetic type linear actuator which drives the second lens with electromagnetic power.
摘要:
An optical apparatus is disclosed in which a press contact force for bringing a vibrator and a contact member into press contact with each other is generated between them, and thereby the reaction force of the press contact force is difficult to transmit outward. The optical apparatus comprises a lens holding member which holds a lens, and a vibration type linear actuator which drives the lens holding member in an optical axis direction. The vibration type linear actuator includes a vibrator on which vibration is produced through an electromechanical energy conversion action and a contact member which is in press contact with the vibrator. The vibrator and the contact member is in press contact with each other by a magnetic force acting between them.
摘要:
An optical apparatus is disclosed which can well maintain a surface contact state between a vibrator and a contact member of a vibration type linear actuator to perform a stable lens drive. The optical apparatus comprises a vibration type linear actuator driving a lens in an optical axis direction. The vibration type linear actuator includes a vibrator on which vibration is produced through an electromechanical energy conversion action and a contact member which is in press contact with the vibrator. The apparatus comprises a holding mechanism which holds one member of the vibrator and the contact member so as to change at least one of the position and inclination of the one member in response to a force smaller than a press contact force between the vibrator and the contact member.
摘要:
An optical apparatus is disclosed which can suppress an increase in size thereof even if its lens is driven in a large movable range. The apparatus comprises a first linear actuator which includes a first member to which an electrical signal is input and a second member whose length in an optical axis direction is longer than the first member, and drives a first lens in a first movable range in the optical axis direction. The apparatus comprises a second linear actuator which includes a third member to which an electrical signal is input and a fourth member whose length in the optical axis direction is longer than the third member, and drives a second lens in a second movable range in the optical axis direction. The first member is moved together with the first lens in the optical axis direction, with respect to the second member.
摘要:
An optical apparatus is disclosed which has a light amount adjusting unit, a lens to be driven by a linear actuator, and a detector for detecting the position of the lens, and which can be reduced in size. The optical apparatus includes a light amount adjusting unit which adjusts a light amount by light shield members translating in a first direction, a vibration type linear actuator which drives the lens in an optical axis direction, a guide member which guides the lens in the optical axis direction, and a detector which detects the position of the lens. When viewed from the optical axis direction of the optical apparatus, the vibration type linear actuator, the guide member, and the detector are arranged along an outer surface of the light amount adjusting unit, the outer surface being provided in a second direction orthogonal to the first direction.
摘要:
An optical apparatus is disclosed which can well maintain a surface contact state between a vibrator and a contact member of a vibration type linear actuator to perform a stable lens drive. The optical apparatus comprises a vibration type linear actuator driving a lens in an optical axis direction. The vibration type linear actuator includes a vibrator on which vibration is produced through an electromechanical energy conversion action and a contact member which is in press contact with the vibrator. The apparatus comprises a holding mechanism which holds one member of the vibrator and the contact member so as to change at least one of the position and inclination of the one member in response to a force smaller than a press contact force between the vibrator and the contact member.
摘要:
An optical apparatus is disclosed which has a light amount adjusting unit, a lens to be driven by a linear actuator, and a detector for detecting the position of the lens, and which can be reduced in size. The optical apparatus includes a light amount adjusting unit which adjusts a light amount by light shield members translating in a first direction, a vibration type linear actuator which drives the lens in an optical axis direction, a guide member which guides the lens in the optical axis direction, and a detector which detects the position of the lens. When viewed from the optical axis direction of the optical apparatus, the vibration type linear actuator, the guide member, and the detector are arranged along an outer surface of the light amount adjusting unit, the outer surface being provided in a second direction orthogonal to the first direction.
摘要:
An image stabilizing apparatus includes a fixed member, a shift member that holds an image stabilizing lens and are movable in a plane orthogonal to an optical axis, a plurality of shift drivers that are disposed at positions different from each other in the plane orthogonal to the optical axis, a gel that is held by one of the shift member and the fixed member, and a protrusion that is provided on the other one of the shift member and the fixed member. Each of the plurality of shift drivers includes a magnet held by one of the shift member and the fixed member, a coil that is held by the other one of the shift member and the fixed member, and a yoke that is held by the other one of the shift member and the fixed member, and a portion of the protrusion is immersed in the gel.