US 2004/0017620 A1 · Optical unit provided with an actuator

Abstract

An optical unit is constructed by superposing and cementing the first substrate having fixed electrodes and the second substrate having a sheet-like member in which a moving plate-spring-like electrode is provided. Concentric through holes are provide at the middles of the sheet-like member of the first substrate and the second substrate, and an optical element, such as a lens, a mirror, or a prism, is mounted to the through hole of the sheet-like member. When voltages applied between the fixed electrodes and the moving electrode are controlled, the sheet-like member is displaced and thereby the optical element is deformed.

Claims72

Dependent claims

An optical unit provided with a plate spring actuator.

An optical unit provided with a plate spring actuator, said plate spring actuator being constructed to achieve at least one of focusing (compensation for movement of an object), shake prevention, correction for assembly error, compensation for a change of an optical system by a change in temperature or humidity, a magnification change, zooming, and diopter adjustment.

An optical unit provided with at least one plate spring actuator, said plate spring actuator being constructed to drive an optical element mounted to said plate spring actuator.

An optical unit provided with a plate spring actuator, placed in an imaging device, an observation device, an electronic imaging device, an endoscope, a digital camera, a TV camera, a finder, binoculars, a cellular phone, a personal digital assistant, or a face mounted display.

An optical unit provided with a plate spring actuator, said plate spring actuator being constructed to make a change in a direction of an optical axis or a change in a direction of a visual field.

An optical apparatus having a plate spring actuator and a decentering optical system, said plate spring actuator and said decentering optical system being constructed to make compensation for shake or a change in a direction of an optical axis or a change in a direction of a visual field.

An optical unit provided with at least one plate spring actuator, said plate spring actuator is constructed to drive at least one optical element simultaneously.

An optical unit provided with at least one plate spring actuator.

An optical unit provided with at least one plate spring actuator, placed in an imaging device, an electronic imaging device, an endoscope, a digital camera, a TV camera, a finder, binoculars, a microscope, a cellular phone, a personal digital assistant, or a face mounted display.

An optical unit provided with at least one plate spring actuator, said plate spring actuator being constructed to achieve zooming or a change of magnification.

An optical unit provided with at least one plate spring actuator, said plate spring actuator being constructed to achieve zooming or a change of magnification and focusing.

An optical unit provided with at least two plate spring actuators, said two plate spring actuators being constructed to drive an optical element.

An optical unit provided with at least two plate spring actuators, said two plate spring actuators being constructed to drive at least one optical element simultaneously.

An optical unit provided with at least two plate spring actuators.

An optical unit provided with at least two plate spring actuators, placed in an imaging device, an electronic imaging device, an endoscope, a digital camera, a TV camera, a finder, binoculars, a microscope, a cellular phone, a personal digital assistant, or a face mounted display.

An optical unit provided with at least two plate spring actuators, said plate spring actuator being constructed to achieve zooming or a change of magnification.

An optical unit provided with at least two plate spring actuators, said plate spring actuator being constructed to achieve zooming or a change of magnification and focusing.

An optical unit providing a deformable mirror to a substrate having a moving electrode of a plate spring actuator.

An optical apparatus using an optical unit providing a deformable mirror to a substrate having a moving electrode of a plate spring actuator.

An optical unit using a plate spring actuator in which a substrate having a moving electrode is interposed between two substrates having fixed electrodes.

An optical unit provided with a plate spring actuator in which a substrate having a moving electrode is interposed between two substrates having fixed electrodes, used in an imaging device, an electronic imaging device, an endoscope, a digital camera, a TV camera, a finder, binoculars, a microscope, a cellular phone, a personal digital assistant, or a face mounted display.

An optical unit using a plate spring actuator in which a substrate having a moving electrode is interposed between two substrates having fixed electrodes, constructed to achieve at least one of focusing (compensation for movement of an object), shake prevention, correction for assembly error, compensation for a change of an optical system by a change in temperature or humidity, a magnification change, zooming, and diopter adjustment.

An optical unit comprising:

a plate spring actuator having at least one substrate with fixed electrodes and at least one substrate with a moving electrode;
and
an optical system or an optical element mounted to said at least one substrate with a moving electrode,
wherein at least one optical element constituting said optical system is displaced through said plate spring actuator.

1 more element

An optical apparatus using a plate spring actuator.

An optical apparatus using a plate spring actuator, constructed to achieve at least one of focusing (compensation for movement of an object), shake prevention, correction for assembly error, compensation for a change of an optical system by a change in temperature or humidity, a magnification change, zooming, and diopter adjustment.

An optical apparatus using a plate spring actuator, constructed to make a change in a direction of an optical axis or a change in a direction of a visual field.

An optical system using at least one plate spring actuator, constructed to drive an optical element.

An optical system using at least one plate spring actuator, constructed to drive at least one optical element.

An optical apparatus using at least one plate spring actuator.

At least one plate spring actuator used in an imaging device, an electronic imaging device, an endoscope, a digital camera, a TV camera, a finder, binoculars, a microscope, a cellular phone, a personal digital assistant, or a face mounted display.

An optical apparatus using at least one plate spring actuator, constructed to achieve zooming or a change of magnification.

An optical apparatus using at least one plate spring actuator, constructed to achieve zooming or a change of magnification and focusing.

An optical system using at least two plate spring actuators, constructed to drive an optical element.

An optical system using at least two plate spring actuators, constructed to drive at least one optical element.

An optical apparatus using at least two plate spring actuators.

At least two plate spring actuators used in an imaging device, an electronic imaging device, an endoscope, a digital camera, a TV camera, a finder, binoculars, a microscope, a cellular phone, a personal digital assistant, or a face mounted display.

An optical apparatus using at least two plate spring actuators, constructed to achieve zooming or a change of magnification.

An optical apparatus using at least two plate spring actuators, constructed to achieve zooming or a change of magnification and focusing.

A plate spring actuator using an electromagnetic force.

An optical unit provided with a plate spring actuator using an electromagnetic force, having coils on a side of a moving member and providing said moving member with an optical element.

An optical unit provided with a plate spring actuator using an electromagnetic force, having a permanent magnet on a side of a moving member and providing said moving member with an optical element.

An optical unit provided with a plate spring actuator using an electromagnetic force, having coils on a side of a moving member and a permanent magnet on a side of a fixed member and providing said moving member with an optical element.

An optical unit comprising:

a first substrate in which a plurality of beam members, each having a crank- or curve-shaped flexible beam portion, are connected to a sheet-like member that an optical element is mounted thereto or constructed integrally therewith and to a frame member provided so as to surround said sheet-like member and at least one of said sheet-like member and said beam members is constructed as a first layer electrode;
and
a second substrate having a second layer electrode in an area opposite to said first layer electrode, cemented to said frame member,
wherein when an electric potential between said first layer electrode and said second layer electrode is changed, said sheet-like member is displaced by an electrostatic force so that a position of said optical element is controlled on an optical path.

1 more element

An optical unit comprising:

a first substrate in which a plurality of beam members, each having a flexible beam portion, are connected to a sheet-like member constructed integrally with an optical element and to a frame member provided so as to surround said sheet-like member and at least one of said sheet-like member and said beam members is constructed as a first electrode;
and
a second substrate having a second electrode in an area opposite to said first electrode, cemented to said frame member,
wherein when an electric potential between said first electrode and said second electrode is changed, said sheet-like member is displaced by an electrostatic force so that a position of said optical element is controlled.

1 more element

An optical unit comprising:

a first substrate in which a plurality of beam members, each having a flexible beam portion, are connected to a sheet-like member that an optical element is mounted thereto or constructed integrally therewith and to a frame member provided so as to surround said sheet-like member and at least one of said sheet-like member and said beam members is constructed as a first electrode;
and
a second substrate having a magnet in an area opposite to said first electrode, cemented to said frame member,
wherein when an electric current is made to flow through said first electrode, said sheet-like member is displaced by an electromagnetic force so that a position of said optical element is controlled.

1 more element

An optical unit comprising:

a first substrate in which a plurality of beam members, each having a flexible beam portion, are connected to a sheet-like member that an optical element is mounted thereto or constructed integrally therewith and to a frame member provided so as to surround said sheet-like member and a magnet is provided;
and
a second substrate having an electrode in an area opposite to said first substrate, cemented to said frame member,
wherein when an electric current is made to flow through said electrode of said second substrate, said sheet-like member is displaced by an electromagnetic force so that a position of said optical element is controlled.

1 more element

An optical unit comprising:

a first substrate in which a plurality of beam members are connected to a sheet-like member that an optical element is mounted thereto or constructed integrally therewith and to a frame member provided so as to surround said sheet-like member and at least one of said sheet-like member and said beam members is constructed as a first electrode;
and
a second substrate having a second electrode in an area opposite to said first electrode, cemented to said frame member,
wherein when an electric current is made to flow through said first electrode and said second electrode, said sheet-like member is displaced by an electromagnetic force so that a position of said optical element is controlled.

1 more element

Dependencies are inferred from the claim text.

Optical unit provided with an actuator

Life of this patent

Optical unit provided with an actuator

Life of this patent

Abstract

Claims72