ApplicationNo. 708774 filed on 07/26/1976
US Classes:463/5, Simulated projector with diverse interactive target250/208.6, With specific relative positional geometry of photosensitive elements (e.g., an annular photosensitive element surrounding a coaxially mounted photosensitive element)434/22, Beam sensor included in apparatus463/51Electromagnetic ray simulates projectile or its path, or utilized for coincidence detection (e.g., light-ray gun, infrared aim detector, etc.)
ExaminersPrimary: Rolinec, Rudolph V.
Assistant: Tokar, Michael
Attorney, Agent or Firm
International ClassA63B 063/00
AbstractA target unit comprises equally spaced and crosswise arranged photoelectric converters responsive to a visible or invisible light pulse beam hitting the unit at an area including a center point for producing output pulses. The converters are disposed on four sides of the cross point, and divided into four adjacent groups, adjacent to the cross point and four remote groups, remote therefrom. The area is capable of covering the adjacent group converters but no more of the remote group ones when the center point coincides with the cross point. Counts of the output pulses for each adjacent group and for the associated remote group are added. The sum for the adjacent and remote group pair is subtracted from the sum for the related pair to drive an indicator for simulating the distance and the azimuth of the center point relative to the cross point.