Photosensitive apparatus for measuring coordinate distances
First Claim
1. APPARATUS FOR MEASUREMENT OF THE INCREMENTAL DISTANCE ALONG COORDINATE AXES BETWEEN A REFERENCE POINT AND ANOTHER POINT SPACED THEREFROM WHICH COMPRISES, MEANS TO DEFINE A FIRST TRANSLUCENT PLANE MOUNTED A PREDETERMINED DISTANCE ABOVE A SECOND REFERENCE PLANE, A FIRST PLURALITY OF OPAQUE GIRD LINES IN THE FIRST PLANE EXTENDING IN ONE DIRECTION DEFINING THE DIRECTION OF ONE COORDINATE AXIS, A SECOND PLURALITY OF OPAQUE GIRD LINES IN THE FIRST PLANE EXTENING IN ANOTHER DIRECTION DEFINING A DIFFERENT COORDINATE AXIS, THE GIRD LINES OF EACH PLURALITY BEING SPACED APART BY A PREDETERMINED DISTANCE, A MOVABLE RADIATION SENSOR DEVICE HAVING A HOUSING WITH A THIRD PLURALITY OF OPAQUE GIRD LINES EXTENDING IN A DIRECTION PARALLEL TO ONE OF THE COORDINATE AXES AND A FOURTH PLURALITY OF OPAQUE GIRD LINES PARALLEL TO THE OTHER COORDINATE, SAID HOUSING BEING SMALLER THAN SAID PREDETERMINED DISTANCE BETWEEN SAID FIRST AND SECOND PLANES, A POINTED ELEMENT CONNECTED DIRECTLY TO SAID HOUSING SO THAT THE POINTED ELEMENT IS MOVEABLE ADJACENT SAID SECOND PLANE WITH SAID HOUSING MAINTAINED ADJACENT SAID FIRST PLANE, A RADIATION SENSING ELEMENT MOUNTED WITHIN THE HOUSING ON THE OPPOSITE SIDES OF EACH OF SAID THIRD AND FOURTH PLUALITIES OF OPAQUE GRID LINES FROM SAID FIRST AND SECOND OPAQUE GIRD LINES, A RADIATION SOURCE MEANS POSITIONED TO EMIT RADIATIONS PAST SAID FIRST, SECOND, THIRD AND FOURTH OPAQUE GRID LINES, MEANS CONNECTED TO SAID RADIATION SENSING ELEMENTS TO GENERATE A PULSE OUTPUT IN RESPONSE TO MODULATION OF THE INCIDENT RADIATION BY THE INTERFERENCE PATTERN BETWEEN THE RESPECTIVE GRID LINES.
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Accused Products
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1 Claim
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1. APPARATUS FOR MEASUREMENT OF THE INCREMENTAL DISTANCE ALONG COORDINATE AXES BETWEEN A REFERENCE POINT AND ANOTHER POINT SPACED THEREFROM WHICH COMPRISES, MEANS TO DEFINE A FIRST TRANSLUCENT PLANE MOUNTED A PREDETERMINED DISTANCE ABOVE A SECOND REFERENCE PLANE, A FIRST PLURALITY OF OPAQUE GIRD LINES IN THE FIRST PLANE EXTENDING IN ONE DIRECTION DEFINING THE DIRECTION OF ONE COORDINATE AXIS, A SECOND PLURALITY OF OPAQUE GIRD LINES IN THE FIRST PLANE EXTENING IN ANOTHER DIRECTION DEFINING A DIFFERENT COORDINATE AXIS, THE GIRD LINES OF EACH PLURALITY BEING SPACED APART BY A PREDETERMINED DISTANCE, A MOVABLE RADIATION SENSOR DEVICE HAVING A HOUSING WITH A THIRD PLURALITY OF OPAQUE GIRD LINES EXTENDING IN A DIRECTION PARALLEL TO ONE OF THE COORDINATE AXES AND A FOURTH PLURALITY OF OPAQUE GIRD LINES PARALLEL TO THE OTHER COORDINATE, SAID HOUSING BEING SMALLER THAN SAID PREDETERMINED DISTANCE BETWEEN SAID FIRST AND SECOND PLANES, A POINTED ELEMENT CONNECTED DIRECTLY TO SAID HOUSING SO THAT THE POINTED ELEMENT IS MOVEABLE ADJACENT SAID SECOND PLANE WITH SAID HOUSING MAINTAINED ADJACENT SAID FIRST PLANE, A RADIATION SENSING ELEMENT MOUNTED WITHIN THE HOUSING ON THE OPPOSITE SIDES OF EACH OF SAID THIRD AND FOURTH PLUALITIES OF OPAQUE GRID LINES FROM SAID FIRST AND SECOND OPAQUE GIRD LINES, A RADIATION SOURCE MEANS POSITIONED TO EMIT RADIATIONS PAST SAID FIRST, SECOND, THIRD AND FOURTH OPAQUE GRID LINES, MEANS CONNECTED TO SAID RADIATION SENSING ELEMENTS TO GENERATE A PULSE OUTPUT IN RESPONSE TO MODULATION OF THE INCIDENT RADIATION BY THE INTERFERENCE PATTERN BETWEEN THE RESPECTIVE GRID LINES.
Specification
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- Resources
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Current AssigneeJohn T. Potter
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Original AssigneeJohn T. Potter
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InventorsPotter, John T.
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Application NumberUS04/278,587Time in Patent Office742 DaysField of SearchUS Class Current356/618CPC Class CodesG01B 11/002 for measuring two or more c...
