Three axis optical alignment device

Claim 1

A DEVIATION CHECKING SYSTEM FOR CHECKING THE ANGULAR DEVIATION OF TWO BODIES ABOUT THREEMUTUALLY PERPENDICULAR AXES ONE OF WHICH IS PARALLEL TO AN AXIS PASSING THROUGH SAID BODIES COMPRISING: RECEIVING MEANS SUPPORTED ON ONE OF SAID BODIES FOR RECEIVING LIGHT RAYS, PROJECTION MEANS SUPPORTED ON THE OTHER OF SAID BODIES FOR PROJECTING THREE SEPARATE BEAMS OF LIGHT TO SAID RECEIVING MEANS, FIRST LIGHT DIVIDING AND PHOTOELECTRIC SENSING MEANS ON SAID ONE BODY TO RECEIVE A FIRST CENTRAL BEAM OF SAID THREE SEPARATE BEAMS OF LIGHT AND SENSE LATERAL DEVIATION MOVEMENT OF THE FIRST BEAM OF LIGHT ABOUT TWO OF SAID MUTUALLY PERPENDICULAR AXES WHICH ARE PERPENDICULAR TO SAID AXIS WHICH IS PARALLEL TO AN AXIS PASSING THROUGH SAID BODIES, SAID FIRST LIGHT DIVIDING AND PHOTOELECTRIC SENSING MEANS INCLUDING TWO PAIRS OF OPPOSED LIGHT RECEIVING PORTIONS WITH ONE LIGHT RECEIVING PORTION OF EACH PAIR BEING ON ONE SIDE OF ONE OF SAID TWO OF SAID PERPENDICULAR AXES AND THE OTHER LIGHT RECEIVING PORTION BEING ON THE OTHER SIDE OF SAID ONE OF SAID TWO PERPENDICULAR AXES, THE OTHER PAIR OF SAID LIGHT RECEIVING PORTIONS OF SAID FIRST LIGHT DIVIDING AND PHOTOELECTRIC SENSING MEANS HAVING ONE LIGHT RECEIVING PORTION ON ONE SIDE OF THE OTHER OF SAID TWO PERPENDICULAR AXES AND THE OTHER OF SAID LIGHT RECEIVING PORTIONS BEING ON THE OTHER SIDE OF SAID OTHER OF SAID TWO MUTUALLY PERPENDICULAR AXES, SAID PROJECTION MEANS INCLUDING A LIGHT SOURCE, A RETICLE HAVING A FIRST SLIT, MEANS ON SAID PROJECTION MEANS TO COLLIMATE THE IMAGE OF THE FIRST SLIT OF SAID RETICLE, MEANS ON SAID RECEIVING MEANS TO DIRECT THE IMAGE OF SAID FIRST SLIT OF SAID RETICLE ONTO SAID FIRST LIGHT DIVIDING AND PHOTOELECTRIC SENSING MEANS, ELECTRIC CIRCUIT MEANS FOR PROVIDING AN OUTPUT INDICATIVE OF THE AMOUNT OF SAID IMAGE RECEIVED RESPECTIVELY BY EACH OF THE SAID LIGHT RECEIVING PORTIONS TO INDICATE LATERAL DEVIATION MOVEMENT OF SAID ONE BEAM OF LIGHT RAYS ABOUT SAID TWO MUTUALLY PERPENDICULAR AXES WHICH ARE PERPENDICULAR TO SAID AXIS WHICH IS PARALLEL TO SAID AXIS EXTENDING BETWEEN SAID BODIES WHEREBY THE FIRST SLIT OF SAID RETICLE WHEN IN ALIGNMENT WILL FOCUS ON THE CENTER OF SAID FIRST LIGHT DIVIDING AND PHOTOELECTRIC SENSING MEANS, OTHER SLITS IN SAID PROJECTION MEANS FOR PRODUCING THE OTHER TWO BEAMS OF LIGHT IN DIVERGING BEAMS OF UNCOLLIMATED LIGHT IN A PLANE EXTENDING TOWARD SAID RECEIVING MEANS, A PAIR OF RADIALLY SPACED OTHER LIGHT DIVIDING AND PHOTOELECTRIC SENSING MEANS ON THE ONE BODY TO SENSE LATERAL MOVEMENT OF SAID TWO BEAMS OF UNCOLLIMATED LIGHT TO DETERMINE ROTATION ABOUT SAID AXIS WHICH IS PARALLEL TO SAID AXIS EXTENDING BETWEEN SAID BODIES, EACH OF SAID PAIR OF RADIALLY SPACED OTHER LIGHT DIVIDING AND PHOTOELECTRIC SENSING MEANS INCLUDING A PAIR OF OPPOSED LIGHT RECEIVING PORTIONS WITH ONE LIGHT RECEIVING PORTION BEING ON ONE SIDE OF SAID PLANE OF SAID DIVERGING BEAMS AND THE OTHER LIGHT RECEIVING PORTION OF EACH PAIR BEING ON THE OTHER SIDE OF SAID PLANE OF SAID DIVERGING BEAMS AND ELECTRIC CIRCUITRY CONNECTED TO SAID LIGHT RECEIVING PORTIONS FOR INDICATING VARIATIONS IN THE AMOUNT OF LIGHT STRIKING EACH OF SAID LIGHT RERECEIVING PORTIONS, WHEREBY ROTATION ABOUT SAID AXIS WHICH IS PARALLEL TO SAID AXIS EXTENDING BETWEEN SAID BODIES CAN BE ACCURATELY DETERMINED.