Optical sight assembly
AssigneeHughes Aircraft Company
InventorsGabor Devenyi, Conrad Stenton
Life of this patent
Estimating the term…
Abstract
An optical assembly (10) includes a first plurality of optical elements (14) providing the viewer a first field of view and a second plurality of optical elements (18) that, when moved into the optical path (16), provides the viewer with a second field of view. A support structure (36) for the second plurality of optical elements (18) includes a permanent magnet (64) that is disposed to cause a switch (66) located on the housing (12) of the optical assembly (10) to close. The changing of the position of the switch (66) results in a signal being provided to identify to the viewer which field of view is being presented by the assembly (10).
Claims20
An optical assembly comprising:
- a housing;
- a plurality of optical elements, said plurality of optical elements being disposed within said housing and defining an optical path, at least one of the plurality of optical elements being a fixed optical element and at least one of the other plurality of optical elements being a moveable optical element, wherein the fixed optical element provides a first field of view and the combination of the fixed optical element and the moveable optical element provides a second field of view;
- means for selectively introducing or removing said moveable optical element into or out of said optical path to selectively provide the second field of view;
- and
- magnetic means for indicating the position of said moveable optical element within said housing to indicate the field of view selected, said magnetic means including a magnetic switch affixed to said housing and a permanent magnet affixed to said moveable optical element, wherein movement of the moveable optical element causes the permanent magnet to be moved in relation to the magnetic switch to indicate whether the moveable optical element is into or out of the optical path.
An optical assembly comprising:
- a housing;
- a fixed optical element positioned within the housing in a fixed position along an optical path, said fixed optical element being positioned at one end of the housing;
- an eyepiece section through which a view along the optical path is presented to an operator, said eyepiece section being positioned within the housing along the optical path at an end of the housing opposite to the fixed optical, element;
- a moveable optical assembly positioned within the housing relative to the optical path, said moveable optical assembly including a plurality of optical lenses positioned on a support structure, said support structure including an opening, wherein the moveable optical assembly is moveable such that the optical lenses are positioned along the optical path in one position and the opening is positioned along the optical path in another position, said support structure including a permanent magnet, said permanent magnet being positioned relative to a magnetic switch to provide an indication of the position of the moveable optical assembly, the combination of the fixed optical element and said moveable optical assembly providing a narrow field of view when the optical lenses are positioned along the optical path and said fixed optical element providing a wide field of view when the opening of the moveable optical assembly is positioned along the optical path;
- and
- a plurality of shaft sections, said shaft sections selectively positioning the moveable optical, assembly said shaft sections rotating the moveable optical assembly relative to the optical path to position the optical lenses in the optical path for the narrow field of view and positioning the opening in the optical path for the wide angle field of view, said shaft sections being connected to the support structure.
An optical assembly comprising:
- a housing;
- a plurality of optical elements disposed within said housing and positioned relative to an optical path extending the length of the housing, one of the plurality of optical elements being a fixed optical element positioned along the optical path and providing a first field of view, and at least one of the other plurality of optical elements being a moveable optical element, wherein the combination of the fixed optical element and the moveable optical element provide a second field of view, said moveable optical element being rotatably mounted within the housing by a rotating structure secured to the moveable optical element and the housing in a manner that allows the moveable optical element to be selectively introduced into or removed out of the optical path;
- and
- a magnetic system positioned to indicate the position of the moveable optical element so as to provide an indication of the first or second field of view, said magnetic system including a permanent magnetic and a magnetic switch, wherein the permanent magnetic is aligned with the magnetic switch upon rotation of the moveable optical element to indicate whether the moveable optical element is into or out of the optical path.
Dependencies are inferred from the claim text.