Stereo image forming adapter
AssigneeCanon Kabushiki Kaisha
InventorEtsurou Suzuki
Life of this patent
Estimating the term…
Abstract
A stereo image forming adapter mounted forwardly of the zoom lens of a camera is provided with a plurality of deflecting members disposed at spacing intervals for deflecting light from an object, and a reflecting member for reflecting light flux from each of the deflecting members toward the zoom lens, the spacing interval between deflecting members is varied in operative association with expansion and contraction of the focal length resulting from zooming of the zoom lens.
Claims20
An adapter disposed forwardly of a photo-taking lens having a zooming function, said adapter comprising:
- an optical system having a plurality of deflecting members for deflecting light from an object, and for forming light fluxes having a parallax therebetween;
- and
- interlocking means for varying an interval spacing between said deflecting members in operative association with a zooming movement of said photo-taking lens.
A stereo image forming auxiliary apparatus disposed forwardly of a photo-taking lens having a zooming function, said auxiliary apparatus comprising:
- a plurality of deflecting members disposed at spacing intervals for deflecting light from an object;
- optical means for directing light fluxes from said deflecting members toward said photo-taking lens;
- and
- interlocking means for varying an interval spacing between said deflecting members in operative association with a zooming movement of said photo-taking lens.
A stereo image forming auxiliary apparatus disposed forwardly of a photo-taking lens having a movable member adapted to move forward and backward in a direction of an optic axis of the photo-taking lens in association with a zooming function of the photo-taking lens, said auxiliary apparatus comprising:
- a plurality of deflecting members disposed at spacing intervals for deflecting light from an object;
- optical means for directing light flux from said deflecting members toward said photo-taking lens;
- and
- interlocking means for tilting said deflecting members in operative association with movement of the movable member in the zooming function of said photo-taking lens.
A stereo image forming apparatus comprising:
- a camera provided with a zoom lens;
- an adapter removably mounted on said camera, said adapter comprising:
- a plurality of deflecting members for deflecting light from an object;
- and
- means for varying an interval spacing between said deflecting members in operative association with a zooming movement of the zoom lens.
A stereo adapter which is removably mounted in the optical path of a photo-taking lens having a zooming portion and in which a plurality of deflecting surfaces are disposed at spacing intervals and a light flux from an object is passed through said plurality of deflecting surfaces and thereafter is directed to said photo-taking lens to thereby form a plurality of object images having a parallax, wherein, in a plane containing the center axis of light flux entering said plurality of deflecting surfaces, a relative position of said plurality of deflecting surfaces is displaced in operative association with a zooming movement of said zooming portion.
A stereo adapter which is removably mounted in the optical path of a photo-taking lens having a zooming portion and in which a plurality of deflecting surfaces are disposed at spacing intervals and a light flux from an object is passed through said plurality of deflecting surfaces and thereafter is directed to said photo-taking lens to thereby form a plurality of object images having a parallax, wherein zooming of said zooming portion is detected by detecting means, and forms the basis of a signal from said detecting means, and the relative position of said plurality of deflecting surfaces is displaced in a plane containing the center axis of the light flux entering said plurality of deflecting surfaces.
A stereo adapter which is removably mounted in the optical path of a photo-taking lens having a focal length changing portion and in which two deflecting surfaces are disposed at desired spacing intervals and a light flux from an object is passed through said two deflecting surfaces and thereafter is directed to said photo-taking lens to thereby form two object images having a parallax, wherein a member used in the adjustment of one of said deflecting surfaces and a member used in the adjustment of the other deflecting surface, of stereo base adjusting means for adjusting the spacing interval between said two deflecting surfaces, and convergence angle adjusting means for adjusting angles of rotation of said two deflecting surfaces in a plane containing a center axis of the light flux entering said two deflecting surfaces are substantially symmetrically disposed, and the members at the symmetrical positions are of substantially the same shape.
Dependencies are inferred from the claim text.