Loading patent…
AssigneeOlympus Corporation
InventorsKimihiko Nishioka, Eiji Yasuda, Kentaro Sekiyama, Tetsuo Nagata
Estimating the term…
The invention relates to an optical system or apparatus such as a lens system capable of focus control and a variable-focus lens, which has reduced power consumptions, ensures noiseless operation and fast response and contributes to cost reductions for the reason of simplified structure. Specifically, the invention provides an optical apparatus comprising an element 409 having variable optical properties and an image plane 612. To correct the optical apparatus for movement of the image-formation surface of an optical system 614 in association with a change in the element 409 having variable optical properties, the image plane 612 is placed in the range of movement of the image-formation surface in association with the change in the element having variable optical properties.
An optical system, characterized by comprising a variable mirror and an aperture stop, wherein the aperture stop satisfies the following condition (601):
An optical system, characterized by comprising a variable mirror and an aperture stop, and satisfying the following condition (599):
An optical system, comprising, in order from an object side thereof, an optical element group, a variable mirror or a variable-focus lens, a lens group or an air separation, a zooming group and an optical element group.
An optical system, characterized by comprising a variable mirror and a zooming group having a zooming function, wherein the variable mirror has a focusing function and is located in front of the zooming group.
An optical system having a variable mirror, characterized by a full-open aperture stop located at a position that complies with the following condition (601), wherein a diaphragm having a variable aperture is located at a position different from the position of said aperture stop:
An optical system, comprising a variable mirror, and satisfying the following condition (613):
An optical system, comprising a variable mirror and satisfying the following condition (616):
An optical apparatus comprising an optical system including an optical element having variable optical properties and an image plane, characterized in that to correct said optical system for movement of an image-formation surface in association with a change in the optical element having variable optical properties, the image plane is located in a range of a change in the movement of the image-formation surface in association with the change in the optical element having variable optical properties.
An image pickup system comprising an optical element having variable optical properties and an image pickup device, characterized in that to compensate for a change in a tilt of an image-formation surface in association with a change in the optical element having variable optical properties, the image pickup device is decentered or tilted, thereby compensating said image pickup system for a decrease in image-formation performance in association with the change in the optical element having variable optical properties.
An optical apparatus comprising an optical element having variable optical properties and a display device, characterized in that to compensate for a change in a tilt of an image-formation surface in association with a change in the optical element having variable optical properties, the display device is decentered or tilted, thereby compensating said optical apparatus for a decrease in display performance in association with the change in the optical element having variable optical properties.
An optical apparatus comprising an optical system including an optical element having variable optical properties and an image plane, characterized in that the image plane is spaced ΔM away from an end of a range of a change in a tilt of an image-formation surface in association with a change in the optical element having variable optical properties, wherein ΔM satisfies the following condition (611):
An optical apparatus comprising an optical element having variable optical properties, an optical element and a fixed image plane, characterized in that to compensate for movement of an image-formation surface in association with a change in the optical element having variable optical properties, the optical element is decentered to tilt the image-formation surface, thereby setting the fixed image plane in a range of a change in a tilt of the image-formation surface in association with the change in the optical element having variable optical properties.
An optical apparatus comprising an optical element having variable optical properties, an optical element and an image plane, characterized in that to compensate for movement of an image-formation surface in association with a change in the optical element having variable optical properties, the optical element is decentered to tilt the image-formation surface, thereby bringing the image plane close to the image-formation surface that moves in association with the change in the optical element having variable optical properties.
An optical apparatus comprising an optical element having variable optical properties and an optical element, characterized in that to compensate for aberrational changes in association with a change in the optical element having variable optical properties, the optical element is decentered to produce aberrations, thereby compensating said optical apparatus for the aberrational changes in association with the change in the optical element having variable optical properties.
An optical apparatus using one or more variable mirrors for an optical system, characterized in that a shift decentration given by Δ is intentionally added to at least one optical surface, optical element or image pickup device in a vertical direction to a Z-axis of the optical apparatus with the proviso that a range represented by 0≦|Δ|/f<1 is satisfied, wherein Δ is an amount of the shift decentration added in the vertical direction to the Z-axis, and f is a focal length of the optical system except the variable mirror.
An optical apparatus using one or more variable mirrors, characterized in that a tilt decentration given by Q is intentionally added to at least one optical surface, optical element, image pickup device, display device or image plane with an axis of rotation defined by a straight line vertical to a Z-axis of the optical apparatus, provided that a range represented by 0≦|Q|<15 is satisfied, wherein Q is an amount of tilt decentration (in °) with the axis of rotation defined by the straight line vertical to the Z-axis.
A camera, characterized in that when an optical axis thereof is bent on a long side thereof, the post-bending optical axis is located in a substantially lateral direction of the camera.
A camera, characterized in that when an optical axis thereof is bent on a short side thereof, the post-bending optical axis is located in a substantially longitudinal direction of the camera.
An optical system using at least one variable mirror, characterized in that a tilt decentration is intentionally added to at least one optical surface, optical element, image pickup device or image plane with an axis of rotation defined by a straight line vertical to a Z-axis of the optical system, provided that a range represented by the following condition (103) is satisfied:
An optical system, characterized by comprising an invariable-shape mirror and an aperture stop, wherein a position of the aperture stop satisfies the following condition (601):
An optical system, characterized by comprising an invariable-shape mirror and an aperture stop and satisfying the following condition (599):
An optical system, characterized by comprising an invariable-shape mirror and satisfying the following condition (616):
Dependencies are inferred from the claim text.