Universal translational and rotational film drive mechanism
First Claim
1. Apparatus for driving a continuous strip linearly and rotatively, comprising:
- a housing having an opening;
a platform movably set within the housing;
a strip driving means fixedly mounted to the platform, the driving means including;
(a) a first support plate;
(b) a second support plate;
(c) a third plate having an aperture concentrically aligned with the opening interposed transversely between the first and second plates;
(d) means for holding and guiding the strip movably mated to the first and second plates, a portion of the strip being superimposed on the aperture;
(e) bi-directional positioning means engaged to the holding and guiding means for translating the strip to a particular frame across the aperture;
first actuating means secured to the housing for driving the bi-directional positioning means, thereby moving the strip across the aperture;
second actuating means secured to the housing for rotatably moving the platform, thereby rotating the strip;
whereby the strip is translated and rotated for correlating symbols on each frame of the film at any orientation with predefined symbols.
1 Assignment
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Accused Products
Abstract
Prior art optical correlator systems can perform only translation or rotation. Moreover, images obtained from these prior art systems are blurred due to movements of the target. In the present optical correlator system, to compare symbols on a particular frame of a film with predefined symbols stored in a memory, a novel driving mechanism which can both translate and rotate the film is used. The driving mechanism includes a translation device which has a plurality of gears and rollers mounted in a platform within a housing which may be filled with a fluid having an index of refraction corresponding to that of the film. Motors are coupled to the housing for translating and rotating the driving mechanism so that selected symbols on the film may be compared both linearly and rotatively with predefined symbols. The driving mechanism may further be used as an image motion compensator for eliminating blurring caused by target movements.
13 Citations
14 Claims
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1. Apparatus for driving a continuous strip linearly and rotatively, comprising:
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a housing having an opening; a platform movably set within the housing; a strip driving means fixedly mounted to the platform, the driving means including; (a) a first support plate; (b) a second support plate; (c) a third plate having an aperture concentrically aligned with the opening interposed transversely between the first and second plates; (d) means for holding and guiding the strip movably mated to the first and second plates, a portion of the strip being superimposed on the aperture; (e) bi-directional positioning means engaged to the holding and guiding means for translating the strip to a particular frame across the aperture; first actuating means secured to the housing for driving the bi-directional positioning means, thereby moving the strip across the aperture; second actuating means secured to the housing for rotatably moving the platform, thereby rotating the strip; whereby the strip is translated and rotated for correlating symbols on each frame of the film at any orientation with predefined symbols. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. Apparatus for driving a film having symbols stored thereon translationally and rotatively, comprising:
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a platform; a driving means mounted on the platform, the driving means including; (a) a first plate having an aperture; (b) second and third plates for supporting the first plate longitudinally; (c) means journalled to the second and third plates for holding and guiding the film in alignment with the aperture; first actuating means for bi-directionally translating the holding and guiding means to linearly move at least one particular symbol of the film in alignment with the aperture; second actuating means for rotating the platform, thereby moving the symbol to a predetermined orientation for correlation with predefined symbols. - View Dependent Claims (10, 11, 12)
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13. In an apparatus for compensating image motions of of interest targets, the apparatus having a film stored therein, the apparatus comprising:
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a platform; a driving means mounted on the platform, the driving means including; (a) a first plate having an aperture; (b) second and third plates for supporting the first plate longitudinally; (c) means journalled to the second and third plates for holding and guiding the film in alignment with the aperture; first actuating means for bi-directionally translating the holding and guiding means to linearly move the film in alignment with the aperture; second actuating means for rotating the platform to orient the film in alignment with the aperture; means for sensing, in relation to the film, movement parameters of the of interest target; means for driving the first and second actuating means in response to the sensed parameters; wherein the film is translationally and rotatively moved in proportion to movements of the of interest target for compensating image motions caused by the movements. - View Dependent Claims (14)
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Specification