Image stabilizing apparatus
AssigneeEastman Kodak Company
InventorStephen P. Hines
Life of this patent
Estimating the term…
Abstract
Apparatus for maintaining in focus an image formed at the image plane of an optical instrument, notwithstanding random angular movement of the instrument's housing. Such apparatus includes mounting means for angularly decoupling the image-forming element (e.g., a refractive lens) of the optical instrument from the instrument's housing, thereby allowing the image-forming element to move relative to such housing, and means for maintaining the focal plane of the image-forming element substantially parallel to the image plane of the optical instrument during relative angular movement between the image-forming element and the instrument's housing.
Claims11
In an optical instrument comprising a housing, a lens for forming an image of an object spaced from the housing at an image plane of such instrument, means for supporting the lens, and image stabilizing means for reducing image smear of an image formed at the image plane as a result of random angular motion of the housing relative to an original line of sight between an object and image thereof, the improvement wherein said image-stabilizing means comprises:
- means for mounting the lens for movement relative to the housing, said mounting means comprising at least three spaced struts, means for mounting each of said struts to the lens support means for gimbal movement, about a first point, and means for mounting each of the struts to the housing for gimbal movement about a second point, whereby said mounting means maintains the principal plane of the lens substantially parallel to the image plane during movement of the lens with respect to the housing.
In a camera of the type which includes a housing, a lens for focusing scene light at a film plane, and means for supporting such lens, the improvement comprising:
- mounting means for mounting said support means for movement relative to said housing, said mounting means comprising a plurality of spaced struts, first mounting means for movably mounting each of said struts to said support means for gimbal movement about a first point;
- and second mounting means for movably mounting each of said struts to the camera housing for gimbal movement about a second point spaced from said first point, whereby said mounting means maintains the principal plane of the lens substantially parallel to the film plane during movement of the support means relative to said housing, random angular motion of the housing in first and second planes which are perpendicular to each other and to said film plane thereby being substantially decoupled from the lens.
Dependencies are inferred from the claim text.