Abstract: An orthopedic instrument, comprising a pair of pivotally-connected arms, extending beyond a pivot axis of a first pivot; a pair of feet mounted to ends of the pair of pivotally-connected arms; and a quadrilateral linkage configured to maintain parallelism between the pair of feet over a range of angles and to selectively alter a distance between the pair of feet.

Abstract: A utility knife includes a handle having a body and a receiving aperture. The utility knife further includes a collet at least partially receivable in the receiving aperture, and a sleeve that is engageable with and that surrounds the collet. The collet is configured to alternately receive one of a portion of a blade of a first type in a first slot and a portion of a blade of a second type in a second slot. The collet and the sleeve are co-rotatable relative the handle to move the collet to a secured position in which one of the blade of the first type and the blade of the second type are secured to the collet.

Abstract: An orthopedic instrument, comprising a pair of pivotally-connected arms, extending beyond a pivot axis of a first pivot; a pair of feet mounted to ends of the pair of pivotally-connected arms; and a quadrilateral linkage configured to maintain parallelism between the pair of feet over a range of angles and to selectively alter a distance between the pair of feet.

Abstract: A head-up display device/system includes a dynamically adjustable exit pupil plane. More specifically, the system and the teaching contained herein along with various embodiments relate to head-up display devices comprising at least one picture generation unit and optical steering apparatus which together form a means for displaying 2D and/or 3D virtual augmented images using the surfaces of objects such as windshields.

Abstract: A device and a system includes a head-up display intended to be used to display projected images on surface such as an interior surface of a vehicle windshield. The device and system more particularly relates to a holographic head-up display device, a light module comprising a light source, together with a spatial light modulator displaying a computer-generated hologram once unmodulated beams are filtered using an optical filter. Said HUD device further comprises a head-tracking system for measurement of and adjustment according to interpupillary distance, a processor circuitry for said adjustment and processing pertaining thereto to be undertaken, as well as an optical steering apparatus.