Active auto focus system improvement
First Claim
Patent Images
1. Apparatus for positioning the taking lens means of a camera comprising:
- housing means carrying the lens means and movable along a first path;
a first member positioned a predetermined space from the housing means in the first path, the housing means moving in the first path, contacting the first member and being restrained from further movement in a first position after the housing means has contacted the first member; and
spacing means operable to move into and out of the predetermined space and operable when in the predetermined space to cause the housing means in its movement in the path to contact the spacing means, said housing means and said spacing means thereafter moving together in the first path, contacting the first member and being restrained from further movement with the housing means in a position other than the first position after the housing means together with the spacing means has contacted the first member.
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Abstract
An active auto focus system in which a beam of modulated energy is projected towards a subject to be focussed upon with the energy reflected therefrom directed towards a detector array. The detector array comprises a number of radiation responsive elements arranged in parallel rows and in a pattern which permits the reflected energy to impinge upon at least one detector in each of the rows simultaneously. The arrangement allows a digital type output indicative of the position of the reflected energy on the array and thus the position of the subject from the camera.
197 Citations
3 Claims
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1. Apparatus for positioning the taking lens means of a camera comprising:
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housing means carrying the lens means and movable along a first path; a first member positioned a predetermined space from the housing means in the first path, the housing means moving in the first path, contacting the first member and being restrained from further movement in a first position after the housing means has contacted the first member; and spacing means operable to move into and out of the predetermined space and operable when in the predetermined space to cause the housing means in its movement in the path to contact the spacing means, said housing means and said spacing means thereafter moving together in the first path, contacting the first member and being restrained from further movement with the housing means in a position other than the first position after the housing means together with the spacing means has contacted the first member. - View Dependent Claims (2, 3)
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Specification