Abstract: Eyewear includes a lens (31) including left and right curved, concave protuberances (33) with a connecting structure (37) for sitting on a nose of a user. A peak point (63) of each protuberance (33), which is at a point of maximum distance from a user's eye, is not aligned with a centerline of the user's eye but is offset from the centerline of the user's eye by an offset distance.

Abstract: A wearable optical system allows a user to watch a large screen, such as a smartphone screen, in a wide field of view (FOV) with both eyes, the field superimposed on the real world. The screen displays two separate zones to be the data source for each eye. The system includes two projection optical subassemblies based on a pupil forming eye piece. The interpupilarity distance (IPD) is adjusted by rotating each optical subassembly about a pivot, which is perpendicular to its specific display zone.

Abstract: A set of icons for rating an item is provided. Each of the icons includes a thumb with a different angular rotation to where the thumb points. The different angular rotations are indications of different degrees of satisfaction with the item.

Abstract: A wearable optical system allows a user to watch a large screen, such as a smartphone screen, in a wide field of view (FOV) with both eyes, the field superimposed on the real world. The screen displays two separate zones to be the data source for each eye. The system includes two projection optical subassemblies based on a pupil forming eye piece. The interpupilarity distance (IPD) is adjusted by rotating each optical subassembly about a pivot, which is perpendicular to its specific display zone.

Abstract: A sight for firearms based on a non-collimating optical system includes a reticle, a lens and a housing for holding the reticle to be centered with the optical axis of the lens, which is parallel to the barrel's center line of the firearm. The reticle is located axially apart of the lens back focal plane and projected toward the user's eye, such that the projected reticle appears centered to the lens barrel only when the user eye is on the same lens optical axis.

Abstract: A sight for firearms based on a non-collimating optical system includes a reticle, a lens and a housing for holding the reticle to be centered with the optical axis of the lens, which is parallel to the barrel's center line of the firearm. The reticle is located axially apart of the lens back focal plane and projected toward the user's eye, such that the projected reticle appears centered to the lens barrel only when the user eye is on the same lens optical axis.

Abstract: An icon for rating an item, the icon including a graduated indication of a degree of liking or disliking the item.

Abstract: An optical system including a vision device wearable by a user for seeing objects in a field of view (FOV), the vision device comprising a front section with a normal distortion of rays passing therethrough, and an anamorphic optical element extending from the front section that distorts rays passing therethrough with an extended distortion greater than that of the front section and which enlarges the FOV.

Abstract: An eye model including a front positive lens, a rear positive lens, an aperture stop located between the front and rear positive lenses, and a focal plane located rearward of the rear positive lens, wherein the front positive lens has a meniscus shape having an outer surface radius equal to a radius of a human eye, and wherein the rear positive lens has a rear surface having a radius equal to a distance from the aperture stop to the rear surface.

Abstract: An eye model including a front positive lens, a rear positive lens, an aperture stop located between the front and rear positive lenses, and a focal plane located rearward of the rear positive lens, wherein the front positive lens has a meniscus shape having an outer surface radius equal to a radius of a human eye, and wherein the rear positive lens has a rear surface having a radius equal to a distance from the aperture stop to the rear surface.

Abstract: An infrared lens system including a focus section that focus infrared radiation at an image plane, and a zoom section that adjusts a desired focal length of the infrared radiation, the focus section and zoom section including a plurality of lens elements which are located along an optical axis in optical communication with each other, the focus section and zoom section each including a fixed lens fixed with respect to the optical axis and a movable lens arranged for movement along the optical axis.

Abstract: A lens with a very high degree of barrel distortion at the image plane (or pincushion distortion in object space).

Abstract: An optical system including a vision device wearable by a user for seeing objects in a field of view (FOV), the vision device comprising a front section with a normal distortion of rays passing therethrough, and an anamorphic optical element extending from the front section that distorts rays passing therethrough with an extended distortion greater than that of the front section and which enlarges the FOV.

Abstract: An infrared lens system including a focus section that focus infrared radiation at an image plane, and a zoom section that adjusts a desired focal length of the infrared radiation, the focus section and zoom section including a plurality of lens elements which are located along an optical axis in optical communication with each other, the focus section and zoom section each including a fixed lens fixed with respect to the optical axis and a movable lens arranged for movement along the optical axis.

Abstract: A lens with a very high degree of barrel distortion at the image plane (or pincushion distortion in object space).

Abstract: An optical scanning apparatus and method for scanning objects, including a focusing lens defining an optical axis and a focal plane, a pivot axis, a scanning mirror defining a scanning mirror plane and located between the focusing lens and the focal plane, wherein the scanning mirror is disposed parallel to the pivot axis and is rotatably attached thereto, a detector located on a detector axis and wherein the detector axis is located between the focusing lens and the scanning mirror, and a mirror motion imparting device operative to translate the mirror such that the pivot axis is translated along a path parallel to the focal plane and to rotate the scanning mirror about the pivot axis as the pivot axis is translated such that the mirror plane at the pivot axis maintains substantial perpendicularity to the detector axis, thereby to scan an object.

Abstract: An optical system for viewing data, possibly superpositioned on the view of scenery. The optical system consists of a lens divided into two parts by a beam splitter, and it has a surface facing the viewer and a second surface which is convex and defines a mirror facing the surface close to the viewer. The thick lens has a truncated surface facing the data source and the beam from the data source is reflected by the beam splitter to the concave surface of the mirror which reflects it to the eye of the viewer. When the data is superpositioned on a direct view of the scenery, the mirror is partially reflecting.