Digital read-out and display unit

Claim 1

A DIGITAL READ-OUT DISPLAY UNIT INCLUDING: ELECTRIC LAMPS, A CASING HAVING A FRONT DISPLAY SURFACE AND HAVING A REAR SURFACE; A PLURALITY OF INTERNALLY REFLECTIVE DIVERGING LENSES POSITIONED IN SAID CASING, EACH OF SAID LENSES HAVING A SUBSTANTIALLY RECTANGULAR FORWARD EDGE DISPOSED AT SAID FRONT DISPLAY SURFACE OF SAID CASING TO FORM ELONGATED RECTANGULAR SEGMENTS ON SAID FRONT DISPLAY SURFACE IN A PARTICULAR PATTERN, EACH OF SAID DIVERGING LENSES HAVING A RECTANGULAR CROSS-SECTION WHICH DECREASES IN CROSS SECTION IN A REARWARDLY EXTENDING DIRECTION FROM SAID FRONT DISPLAY SURFACE OF SAID CASING TO A POSITION ADJACENT THE REAR SURFACE THEREOF, AND EACH OF SAID LENSES DIVERGING FROM A REAR EDGE TOWARDS THE AFORESAID FORWARD EDGE THEREOF, SAID REAR EDGE HAVING AN OUTLINE OF SMALL LENGTH AS COMPARED WITH THE LENGTH OF THE CORRESPONDING FORWARD EDGE, SAID REAR EDGE HAVING A SURFACE RECESSED TOWARDS SAID RECTANGULAR FORWARD EDGE FOR RECEPTION OF AN ELECTRIC LAMP, A CORRESPONDING PLURALITY OF SAID ELECTRIC LAMPS MOUNTED IN THE RECESSED REAR SURFACES OF RESPECTIVE ONES OF SAID LENSES AND BEING OPERATIVE TO INTRODUCE LIGHT SELECTIVELY TO SAID LENSES TO BE TRANSMITTED THERETHROUGH TO THE CORRESPONDING FORWARD EDGES DUE TO THE INTERNALLY REFLECTIVE PROPERTIES OF SAID LENSES; AND MEANS CONNECTED TO INDIVIDUAL ONES OF SAID ELECTRIC LAMPS FOR PROVIDING SELECTIVE ELECTRICAL ENERGIZATION OF SAID LAMPS.