초록 ▼

An optical sensor system (10), including a two degree of freedom gyro (32) and a beam expander (38) having a predetermined magnification level, is rigidly secured internally to a housing (20). Also mounted within the housing is a prime sensor beam expander (14, 16), having a magnification level equa

An optical sensor system (10), including a two degree of freedom gyro (32) and a beam expander (38) having a predetermined magnification level, is rigidly secured internally to a housing (20). Also mounted within the housing is a prime sensor beam expander (14, 16), having a magnification level equal to that of the gyro beam expander, and a prime sensor detector (30) which form a primary sensor optical path. A steering mirror (24) is interposed between the gyro and prime sensor beam expander. An autocollimator (50), including an angle detector (56), is secured internally to the housing and projects a light beam off one surface (25) of the steering mirror onto the gyro rotor (34), the position of the stabilized reflected light beam being adjusted with respect to a null point on the autocollimator sensor thus to control the steering mirror and, accordingly, to stabilize the primary optical path with respect to the target being detected.

대표청구항 ▼

An optical path line-of-sight stabilization system for viewing a target comprising: a housing; means defining a first optical path and its line-of sight and having first means secured to said housing for sighting the target and obtaining information thereof and second means secured to said housing f

An optical path line-of-sight stabilization system for viewing a target comprising: a housing; means defining a first optical path and its line-of sight and having first means secured to said housing for sighting the target and obtaining information thereof and second means secured to said housing for detecting the target information; means defining a second optical path including an inertially stabilized element secured to said housing and having a reflective surface, and a source secured to said housing for providing a beam of electromagnetic energy which is directed to and reflected from said reflective surface of said inertially stabilized element; an adjustable beam steering mirror having first and second reflective surfaces respectively positioned in the first and second optical paths respectively between said first and second means of said first optical path means and between said source and said inertially stabilized element, said mirror first reflective surface reflecting electromagnetic energy between the target and said second means and said mirror second reflective surface directing the electromagnetic energy beam to and reflecting the electromagnetic energy beam from said inertially stabilized element; and adjusting means coupled to said adjustable beam steering mirror and including an angle detector secured to said housing and positioned to receive the electromagnetic energy beam from said source and reflected from said reflective surface of said inertially stabilized element for responding to changes in position of said inertially stabilized element and for producing an error signal for driving said adjustable beam steering mirror and thereby for enabling substantially normal reflection and stabilization of the beam from said element reflective surface.