Optical joystick controller with intersecting spring means

Claim 1

A joystick controlled apparatus for producing an electrical control signal in response to user activation of said joystick, said apparatus having light emitting means emitting light along a predetermined path and light detecting means positioned along said predetermined path for furnishing said electrical control signal varying in accordance with light falling thereon, the improvement comprising: a housing; mounting means in said housing for pivotably mounting a cooperating member received therein; retaining means permitting simultaneous motion in a first and second mutually perpendicular direction of a member inserted therein; and a joystick having a first end adapted for user activation, a pivoting member connected to said first end for cooperating with said mounting means under control of said user activation, an elongated member connected to said pivoting member and extending therefrom into said path of said light for blocking light from said light detecting means in correspondence to said user activation, said second elongated member further having a retained end portion extending into said retaining means; and wherein said retaining means comprises a first and second pair of intersecting springs arranged at right angles to one another thereby forming an intersection for receiving said retained end of said second elongated member and returning said retained end and therefore said joystick to a predetermined starting position in the absence of said user activation.