Abstract: The present invention is directed to a distortion free imaging device having an imaging optical system that could be utilized for example in a video camera. In particular a camera configured according to the present invention reduces or eliminates the positive or pin cushion distortion that makes figures seem fatter than they really are. The imaging device includes a photosensor that is configured entirely along the contours of the posterior focal plane of the imaging optical system. The optical system can include a single or plurality of lens and can include a mirror.

Abstract: The present invention is directed to a distortion free imaging device having an imaging optical system that could be utilized for example in a video camera. In particular a camera configured according to the present invention reduces or eliminates the positive or pin cushion distortion that makes figures seem fatter than they really are. The imaging device includes a photosensor that is configured entirely along the contours of the posterior focal plane of the imaging optical system. The optical system can include a single or plurality of lens and can include a mirror.

Abstract: A pair of glasses for use by an individual viewing a CRT screen for easing eye strain includes a pair of lenses, each of the lenses includes a prism disposed within the thickness of the lens for refracting light from an object to a user's eye for moving the light to avoid normal convergence of the individual's eyes for reducing eye strain as an individual views a CRT screen. Frames are provided for securing the pair of lenses in an operative position relative to a user's eyes.

Abstract: Method of implanting an intraocular lens comprising the step of transilluminating the lens as it is introduced into the eye. In the preferred form two sources of light are used, complementary in color so that the edges of the lens glow white while it is properly aligned, and show color when it is moved out of alignment.

Abstract: An intraocular lens that provides accommodation in response to contraction and relaxation of the ciliary body. Accommodation is achieved by motion of the lens, or of an element of a lens system, alternately toward and away from the fovea. Means are provided for biasing the lens, or the movable element, toward the fovea so that when the ciliary body is fully relaxed the lens is at its closest position to the fovea, and as the ciliary body contracts it counters the bias and causes the lens to move away from the fovea and toward the cornea.

Abstract: A sub-miniature optical system, based in principle on the Galilean telescope, for implantation in the eye following surgical removal of the natural lens. The system is made of methyl methacrylate and includes so-called air-lenses formed by bubbles defined by optically curved surfaces within the acrylic bodies. The positive element is surgically secured adjacent to the pupil. The negative element is mechanically connected to the positive element, and extends from it to within a few millimeters of the retina at the rear of the eye. The strength of the positive element is approximately 126 diopters for cases where the cornea is retained, and the strength of the negative element is about -2000 diopters, more or less, depending on its spacing from the positive element.