Automatic position or condition control devices using relative rotation, linear positioning, and magnification

Claim 2

A position control device comprising: detecting means including at least a pair of detecting elements and a center deTecting element interposed between said pair of detecting elements; means for conducting to said detecting means a signal carrying medium including a signal derived from an object; means for varying the magnitude of the image of said object on said detecting means so that the dimension of the signal carrying medium on said detecting means is not more than the dimension of said center detecting element; and means for adjusting the relative position between said detecting means and said signal carrying medium on said detecting means in response to the output of said detecting means so that the signal carrying medium on said detecting means moves into said center position.

Claim 3

A position control device according to claim 1, further comprising means for magnifying the image of said object conducted to said center detecting element of said detecting means.

Claim 4

A position control device comprising: detecting means including at least a pair of detecting elements and a center detecting element interposed between said pair of detecting elements; means for conducting to said detecting means a signal carrying medium including a signal derived from an object, the area of the signal carrying medium on said detecting means being not more than the area of said center detecting element; means for adjusting the relative position between said detecting means and said signal carrying medium on said detecting means in response to the output of said detecting means so that the signal carrying medium on said detecting means moves into said center detecting element; and means for magnifying and demagnifying the image of said object on said detecting means to facilitate placing said signal carrying medium so that it is positioned in said center detecting element.

Claim 5

A position control device comprising: detecting means including at least a pair of detecting elements and a center detecting element interposed between said pair of detecting elements; means for conducting to said detecting means a signal carrying medium including a signal derived from an object, the area of the signal carrying medium on said detecting means being not more than the area of said center detecting element; means for adjusting the relative position between said detecting means and said signal carrying medium on said detecting means in response to the output of said detecting means so that the signal carrying medium on said detecting means moves into said center detecting element; and means for magnifying and demagnifying the image of said object on said detecting means to facilitate placing said signal carrying medium so that it is positioned in said center detecting element.

Claim 6

A position control device according to claim 1, further comprising means for relatively rotating the position of the signal carrying medium on the detecting means measured with respect to the detecting means at varying velocities determined by the proximity of the relative rotational positions to a desired end rotational condition.

Claim 7

A position control device according to claim 1, further comprising: means for relatively rotating the position of the signal carrying medium on the detecting means measured with respect to the detecting means at varying velocities determined by the proximity of the relative rotational positions to a desired end rotational condition; and means for linearly moving the position of the signal carrying medium on the detecting means relative to the position of the detecting means at varying velocities determined by the proximity of the relative linear positions to a desired end condition.

Claim 8

A position control device comprising: means for conducting a signal carrying medium carrying signals derived from an object which has a main portion and an auxiliary portion; detecting means for receiving the signal carrying medium, the detecting means including a plurality of first detecting elements corresponding to said main portion of said object, and a plurality of second detecting elements corresponding to said auxiliary portion of said object, said plurality of second detecting elements being arranged circularly around said first detecting elements in a detecting face and disposed concentrically relative to the center portion of said plurality of first detecting elements; means for adjusting the relative position between the image of said object on said detecting means and said detecting means in response to the outputs of said first detecting elements so that the center portion of the image corresponding to said main portion of said object on said detecting means moves into the center portion of said first detecting elements; and means for adjusting the relative position between said detecting means and the image of said object on said detecting means in response to the output of said second detecting elements so that the imagE of said object on said detecting means is rotated around said center portion of said first detecting elements.

Claim 9

A position control device comprising: means for conducting a signal carrying medium carrying signals derived from an object which has a main portion and an auxiliary portion; detecting means for receiving the signal carrying medium, the detecting means including a plurality of first detecting elements corresponding to said main portion of said object, and a plurality of second detecting elements corresponding to said auxiliary portion of said object, said plurality of second detecting elements being arranged circularly around said first detecting elements in a detecting face and disposed concentrically relative to the center portion of said plurality of first detecting elements; means for adjusting the relative position between the image of said object on said detecting means and said detecting means in response to the outputs of said first detecting elements so that the center portion of the image corresponding to said main portion of said object on said detecting means moves into the center portion of said first detecting elements; and means for adjusting the relative position between said detecting means and the image of said object on said detecting means in response to the output of said second detecting elements so that the imagE of said object on said detecting means is rotated around said center portion of said first detecting elements.

Claim 10

A position control device comprising: a stage adapted to support an object having a main portion to be controlled and an auxiliary portion; linear movement means operatively connected to said stage for causing linear movement of the stage; rotational movement means operatively connected to said stage for causing rotational movement of the stage; detecting means including a detecting face comprising a plurality of first photosensitive elements corresponding to said main portion of said object, and a plurality of second photosensitive elements corresponding to said auxiliary portion of said object and being arranged circularly around said first photosensitive elements and concentrically relative to the center portion of said plurality of first photosensitive elements; light conducting means for conducting light derived from the object to be controlled to the detecting face of said detecting means so as to urge the portion of the image formed by the light on said detecting face and corresponding to said auxiliary portion of said object into one of said second photosensitive elements of said detecting face; driving means for driving said linear movement means in response to the outputs from said first photosensitive elements; and driving means for driving said rotational movement means in response to the outputs from said second photosensitive elements so that the image of said object formed by the light on said detecting face is rotated about the center portion of said plurality of first photosensitive elements. 8. A position control device comprising: a stage adapted to support an object having a main portion to be controlled; linear movement means operatingly connected to said stage for causing linear movement of the stage; rotational movement means operatingly connected to said stage for causing rotational movement of the stage; means for conducting light derived from the object to be controlled; means for varying the magnitude of the image of said object formed by the light to a desired magnitude; detecting means including a plurality of photosensitive elements for receiving the light, said plurality of photosensitive elements including at least one inner photosensitive element and being arranged in a shape such that the outer periphery of the photosensitive elements surrounding said inner photosensitive element has substantially the same geometry as the contour of the image formed by the light and corresponding to said main portion of the light; driving means for driving said rotational movement means to reduce a rotational error between the detecting means and the image of the object formed by the light to zero; and driving means for driving said linear movement means in response to the outputs from said photosensitive elements so that the contour of the image corresponding to the main portion of the object coincides substantially with the outer periphery of the entire photosensitive elements.

Claim 11

A position control device comprising: a stage adapted to support an object having a main portion to be controlled and an auxiliary portion; linear movement means operatively connected to said stage for causing linear movement of the stage; rotational movement means operatively connected to said stage for causing rotational movement of the stage; detecting means including a detecting face comprising a plurality of first photosensitive elements corresponding to said main portion of said object, and a plurality of second photosensitive elements corresponding to said auxiliary portion of said object and being arranged circularly around said first photosensitive elements and concentrically relative to the center portion of said plurality of first photosensitive elements; light conducting means for conducting light derived from the object to be controlled to the detecting face of said detecting means so as to urge the portion of the image formed by the light on said detecting face and corresponding to said auxiliary portion of said object into one of said second photosensitive elements of said detecting face; driving means for driving said linear movement means in response to the outputs from said first photosensitive elements; and driving means for driving said rotational movement means in response to the outputs from said second photosensitive elements so that the image of said object formed by the light on said detecting face is rotated about the center portion of said plurality of first photosensitive elements. 8. A position control device comprising: a stage adapted to support an object having a main portion to be controlled; linear movement means operatingly connected to said stage for causing linear movement of the stage; rotational movement means operatingly connected to said stage for causing rotational movement of the stage; means for conducting light derived from the object to be controlled; means for varying the magnitude of the image of said object formed by the light to a desired magnitude; detecting means including a plurality of photosensitive elements for receiving the light, said plurality of photosensitive elements including at least one inner photosensitive element and being arranged in a shape such that the outer periphery of the photosensitive elements surrounding said inner photosensitive element has substantially the same geometry as the contour of the image formed by the light and corresponding to said main portion of the light; driving means for driving said rotational movement means to reduce a rotational error between the detecting means and the image of the object formed by the light to zero; and driving means for driving said linear movement means in response to the outputs from said photosensitive elements so that the contour of the image corresponding to the main portion of the object coincides substantially with the outer periphery of the entire photosensitive elements.

Claim 12

A position control device comprising: detecting means consisting essentially of a pair of closely spaced striplike detecting elements disposed opposite to each other at their elongated end portions with a desired final position interposed therebetween; means for conducting to said detecting means a signal carrying medium having a signal indicative of a condition to be measured and controlled; rotational movement means for adjusting the relative rotational position between said detecting means and the position of the signal carrying medium conducted on said detecting means so that the relative position of the signal carrying medium on said detecting means is rotated about said final position in a detecting face including said pair of detecting elements to urge the position of the signal carrying medium on said detecting means to move into one of said detecting elemEnts; and means for linearly adjusting the relative position between said detecting means and the position of the signal carrying medium on said detecting means in response to the output of said detecting means so that the linear position of the signal carrying medium on said detecting means moves to said final position.

Claim 13

A position control device comprising: detecting means consisting essentially of a pair of closely spaced striplike detecting elements disposed opposite to each other at their elongated end portions with a desired final position interposed therebetween; means for conducting to said detecting means a signal carrying medium having a signal indicative of a condition to be measured and controlled; rotational movement means for adjusting the relative rotational position between said detecting means and the position of the signal carrying medium conducted on said detecting means so that the relative position of the signal carrying medium on said detecting means is rotated about said final position in a detecting face including said pair of detecting elements to urge the position of the signal carrying medium on said detecting means to move into one of said detecting elemEnts; and means for linearly adjusting the relative position between said detecting means and the position of the signal carrying medium on said detecting means in response to the output of said detecting means so that the linear position of the signal carrying medium on said detecting means moves to said final position.

Claim 14

An automatically controlling device comprising: detecting means for detecting the position and the velocity of a body to be controlled to generate detecting signals of position and velocity; comparing means for comparing the detecting signals with preset position and velocity signals, respectively, to generate deviation signals of position and velocity; deflection means for deflecting light in x- and y- directions in response to the deviation signals of position and velocity; means for receiving the light and generating a signal corresponding to the position of the image formed by said light; and driving means for controlling the position and velocity of the body to be controlled to a predetermined position and velocity by utilizing the signal derived from the last mentioned means.

Claim 15

An automatically controlling device comprising: detecting means for detecting the position and the velocity of a body to be controlled to generate detecting signals of position and velocity; comparing means for comparing the detecting signals with preset position and velocity signals, respectively, to generate deviation signals of position and velocity; deflection means for deflecting light in x- and y- directions in response to the deviation signals of position and velocity; means for receiving the light and generating a signal corresponding to the position of the image formed by said light; and driving means for controlling the position and velocity of the body to be controlled to a predetermined position and velocity by utilizing the signal derived from the last mentioned means.