초록 ▼

A radiation detector having a plurality of discrete fields of view with respect to a plurality of sensing elements. The sensing elements are connected such that their output signals are summed to zero if all elements are receiving the same radiation. Optical elements focus on the sensing elements to

A radiation detector having a plurality of discrete fields of view with respect to a plurality of sensing elements. The sensing elements are connected such that their output signals are summed to zero if all elements are receiving the same radiation. Optical elements focus on the sensing elements to produce the discrete fields of view and are adapted to produce non-uniform sensitivity of the patterns over the solid angle thereof whereby a non-zero output will be produced when the sensing elements receive differing amounts of radiation. In one embodiment, a shield is disposed between elements to block radiation to a sensing element from one portion of the solid angle and to pass radiation from another portion of the solid angle.

대표청구항 ▼

A radiation detector for producing a differential signal for either a near field of view or a far field of view, said detector comprising: a radiation sensor having a pair of side by side sensing elements connected differentially for producing an essentially zero output signal if each of said elemen

A radiation detector for producing a differential signal for either a near field of view or a far field of view, said detector comprising: a radiation sensor having a pair of side by side sensing elements connected differentially for producing an essentially zero output signal if each of said elements receives equal amounts of radiated energy and in which an output signal occurs when said sensing elements receive unequal amounts of energy; a radiation shield disposed between and perpendicular to the plane of said sensing elements; and a plurality of optical lens elements disposed in an array adjacent said sensing elements such that a plurality of discrete fields of view is produced with each lens element producing a first field of view associated with one of said pair of said sensing elements and a second field of view associated with the other of said pair of sensing elements, said shield positioned to provide a different sensitivity pattern between said first field of view and said second field of view for each of said lens elements.