초록 ▼

A camera (40) is mounted on a gimbal (44) inside a missile (30) and views forwardly through a transparent, generally conical front dome or ogive (70). An optically refractive corrector (72) is mounted in front of the camera lens (42) for integral movement therewith. The corrector (72) has a least on

A camera (40) is mounted on a gimbal (44) inside a missile (30) and views forwardly through a transparent, generally conical front dome or ogive (70). An optically refractive corrector (72) is mounted in front of the camera lens (42) for integral movement therewith. The corrector (72) has a least one conical surface segment (74a,74b) which is dimensioned to reverse optical conical deformation created by the dome (70). The conical deformation includes little or no refractive power in a plane defined by the axis (38) of the dome (70) and the look axis (46) of the camera (40) and gimbal (44), and progressively varying one-dimensional refraction perpendicular to this plane. Variables including the apex angles (a1,a) of cones (76,78) which define the surfaces (74a,74b), the angle (a3) between the axes (76b,78b) of the cones (76,78), the distances (D1,D2) between the apices (76 a,78a) of the cones (76,78) and the center (74c) of the corrector (72), the tilt angle (a5) and the index of refraction of the corrector (72) provide sufficient degrees of freedom to enable a best fit solution which substantially reverses the conical deformation created by the dome (70).

대표청구항 ▼

A missile, comprising: a transparent, generally conical front dome which creates optical conical deformation when viewed therethrough; a camera mounted inside the dome for viewing therethrough; and a corrector including a single fixed, transparent, passive optically refractive body which is disposed

A missile, comprising: a transparent, generally conical front dome which creates optical conical deformation when viewed therethrough; a camera mounted inside the dome for viewing therethrough; and a corrector including a single fixed, transparent, passive optically refractive body which is disposed between the camera and the dome and has at least one substantially conical surface for creating reverse conical deformation which is substantially the inverse of said conical deformation created by the camera viewing through the dome.