Comparison instrument

Claim 1

A COLORIMETER COMPRISING AN ELONGATED LIGHT-TIGHT ENCLOSURE HAVING A FIRST END AND A SECOND END, A LIGHT SOURCE MOUNTED WITHIN SAID ENCLOSURE AT SAID FIRST END, A LIGHT IMAGE MEANS PIVOTALLY MOUNTD WITHIN SAID ENCLOSURE AT SAID SECOND END, A FIRST LIGHT REFLECTOR MOUNTED WITHIN SAID ENCLOSURE BETWEEN SAID LIGHT IMAGE MEANS AND SAID LIGHT SOURCE ADAPTED TO REFLECT LIGHT EMANATING FROM SAID LIGHT SOURCE TOWARD A FIRST AREA ON SAID IMAGE MEANS, A SECOND LIGHT REFLECTOR MOUNTED WITHIN SAID ENCLOSURE BETWEEN SAID LIGHT IMAGE MEANS AND SAID LIGHT SOURCE ADAPTED TO REFLECT LIGHT EMANATING FROM SAID LIGHT SOURCE TOWARD A SECOND AREA ON SAID IMAGE MEANS, A THIRD LIGHT REFLECTOR MOUNTED WITHIN SAID ENCLOSURE BETWEEN SAID LIGHT IMAGE MEANS AND SAID LIGHT SOURCE ADAPTED TO REFLECT LIGHT EMANATING FROM SAID LIGHT SOURCE TOWARD A THIRD AREA ON SAID IMAGE MEANS, A COLOR STANDARDS MAGAZINE HAVING A FIRST SIDE AND A SECOND SIDE, SAID COLOR STANDARDS MAGAZINE ROTATABLY MOUNTED WITHIN SAID ENCLOSURE SUCH THAT SAID FIRST REFLECTOR AND SAID SECOND REFLECTOR ARE ON A FIRST SIDE OF SAID COLOR STANDARDS MAGAZINE AND SAID LIGHT SOURCE IS ON SAID SECOND SIDE THEREOF, A PLURALITY OF COLOR STANDARDS MOUNTED WITHIN SAID COLOR STANDARDS MAGAZINE SUCH THAT AS SAID COLOR STANDARDS MAGAZINE IS ROTATED, ONE OF SAID COLOR STANDARDS IS POSITIONED BETWEEN SAID FIRST REFLECTOR AND SAID LIGHT SOURCE WHILE ANOTHER OF SAID COLOR STANDARDS IS POSITIONED BETWEEN SAID SECOND REFLECTOR AND SAID LIGHT SOURCE, AND A SAMPLE CONTAINER COMPARTMENT ARRANGED TO RECEIVE A SAMPLE AND POSITION SAID SAMPLE BETWEEN SAID THIRD REFLECTOR AND SAID LIGHT SOURCE.