초록 ▼

A low mass inertia scanning system is used in conjunction with a servo control system to make high frequency changes in beam direction. The scanning system is placed behind a beam expansion optical system, which reduces the mass-inertia and increases its directional accuracy. When used in the revers

A low mass inertia scanning system is used in conjunction with a servo control system to make high frequency changes in beam direction. The scanning system is placed behind a beam expansion optical system, which reduces the mass-inertia and increases its directional accuracy. When used in the reverse direction, with beam reduction, it can be used to increase the directional movement. A beam scanning system, refractive or reflective, diverts the ray direction from or toward the primary optical axis. A beam expander, a telescope in reverse, projects the beam, for instance, to a moving target. Alternately if the source-director-telescope is moving, it can keep the beam on a stationary or moving target. The beam direction or image is maintained in the same position, irrespective of source-director-telescope or target movement, by means of a sensing device and a servo system which appropriately adjusts the position of the scanning system (director) to accommodate such position change.

대표청구항 ▼

A low mass inertia optical system for accurately directing a radiation beam in a given direction which comprises: optical beam folding means for diverting and folding incident radiation beams about a primary optic axis of the system, said means including a secondary optical member disposed generally

A low mass inertia optical system for accurately directing a radiation beam in a given direction which comprises: optical beam folding means for diverting and folding incident radiation beams about a primary optic axis of the system, said means including a secondary optical member disposed generally perpendicular to said primary optic axis and operative to divert incoming radiation beams to generally parallel to said primary optic axis and outgoing radiation beams away from said primary optic axis, a primary optical member disposed generally perpendicular to said primary optic axis and in a radiation beam exchanging relation with respect to said secondary optical member and operative to divert incoming radiation beams toward said secondary optical member and outgoing radiation beams to generally parallel to said primary optic axis, and a beam director member mounted for pivotal and rotational movement about associated axes to accommodate radiation beam direction changes, said beam director is disposed between said primary and secondary optical members in a radiation beam exchanging relationship with said secondary optical member to fold incoming and outgoing radiation beams, said beam director is adapted to divert outgoing radiation beams parallel to said primary optical axis for interception by said secondary optical member, and said beam director member diverting incoming radiation beams to generally perpendicular to said primary optical axis.