Rear view mirror containing a fluid light controlling medium

Claim 1

A MIRROR STRUCTURE COMPRISING AN ENCLOSURE, A TRANSPARENT FIRST PLATE FORMING A WINDOW FOR SAID ENCLOSURE, SAID PLATE HAVING A LIGHT REFLECTING FRONTAL FACE OF RELATIVELY LOW LIGHT REFLECTIVITY AND HAVING A REARWARD FACE WITHIN SAID ENCLOSURE, SAID ENCLOSURE DEFINING A CLOSED FLUID CHAMBER FOR RECEIVING AN OPTICALLY DENSE LIGHT ATTENUATING FLUID, A SECOND PLATE WITHIN SAID ENCLOSURE HAVING A LIGHT REFLECTING FACE OF RELATIVELY HIGH LIGHT REFLECTIVITY CONFRONTING SAID REARWARD FACE OF SAID FIRST PLATE, SAID PLATES BEING MOVABLE TOWARD AND AWAY FROM EACH OTHER AND SAID SECOND PLATE BEING ARRANGED AND CONSTRUCTED TO PERMIT THIS PLATE TO SUBSTANTIALLY FREELY ORIENT ITSELF RELATIVE TO SAID FIRST PLATE TO ESTABLISH A CONDITION OF SUBSTANTIAL PARALLELISM BETWEEN THE CONFRONTING FACES OF SAID PLATES WHEN SAID PLATES ARE MOVED INTO SUBSTANTIAL ABUTEMENT WITH EACH OTHER, AND SHIFTING MEANS OPERABLE TO POSITION SAID PLATES IN A FIRST POSITION OF SUBSTANTIAL ABUTMENT IN WHICH THE CONFRONTING FACES OF SAID PLATES ARE IN SUBSTANTIAL PARALLELISM AND LESS THAN ABOUT 0.010 INCH APART WHEREBY SAID LIGHT REFLECTING FACE OF SAID SECOND PLATE PROVIDES LIGHT REFLECTIVITY OF THE GREATEST INTENSITY AND IN A SECOND POSITION IN WHICH THE CONFRONTING FACES OF SAID PLATES ARE FREE OF ANY REQUIREMENT OF PARALLELISM AND SAID PLATES ARE SEPARATED AN AMOUNT MORE THANT 0.010 INCH AND SUFFICIENT TO HAVE SAID FLUID PROVIDE A MASKING LAYER BETWEEN SAID PLATES SUBSTANTIALLY EXTINGUISHING LIGHT RELFECTIONS BY SAID LIGHT REFLECTING FACE OF SAID SECOND PLATE WHEREBY SAID LIGHT REFLECTING FACE OF SAID FIRST PLATE PROVIDES LIGHT REFLECTIVITY OF THE GREATEST INTENSITY AND WHEREBY A COMBINATION OF LIGHT REFLECTIONS FROM SAID SECOND PLATE ACTING WITH LIGHT REFLECTIONS FROM SAID FIRST PLATE TO PRODUCE MULTIPLE IMAGES IS AVOIDED.