Abstract: The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a a viewing optic with an integrated display system. In one embodiment, the disclosure relates to a solar powered viewing optic with an integrated display system.

Abstract: A threaded joint arrangement with visual and tactile indication of correct tightening force, includes a threaded fastener having a fastener shaft and a fastener head, a biasing member, a first object provided with a cavity in a reference surface with a bottom surface provided with a through hole, and a second object with a threaded hole. The through hole is aligned with the threaded hole and the fastener shaft extends through the through hole and is in threaded engagement with the threaded hole. The biasing member is arranged in the cavity between the fastener head and the bottom surface and is compressed between the fastener head and the bottom surface in response to rotation of the threaded fastener. An alignment surface is movable by rotation of the threaded fastener between a first position outside the cavity, a second position flush with the reference surface and a third position inside cavity.

Abstract: The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic with an active display and an enabler interface. In one embodiment, the disclosure relates to a system comprising a viewing optic with an active display and an imaging device.

Abstract: A threaded joint arrangement with visual and tactile indication of correct tightening force, includes a threaded fastener having a fastener shaft and a fastener head, a biasing member, a first object provided with a cavity in a reference surface with a bottom surface provided with a through hole, and a second object with a threaded hole. The through hole is aligned with the threaded hole and the fastener shaft extends through the through hole and is in threaded engagement with the threaded hole. The biasing member is arranged in the cavity between the fastener head and the bottom surface and is compressed between the fastener head and the bottom surface in response to rotation of the threaded fastener. An alignment surface is movable by rotation of the threaded fastener between a first position outside the cavity, a second position flush with the reference surface and a third position inside cavity.

Abstract: There is provided a battery and battery half cell comprising at least one carbon fiber as negative electrode, said carbon fiber comprising a plurality of layers with carbon atoms having graphite structure, said plurality of layers having an ability of intercalating metal ions, said carbon fiber at least partially coated with at least one electrically insulating polymer layer acting as an electrolyte, wherein said insulating polymer layer has been applied with an electro-driven polymerization reaction, wherein said insulating polymer layer is permeable for metal ions, said insulating polymer layer having a stiffness of at least 0.5 MPa, said insulating polymer layer having an ionic conductivity of at least 10?10 S/m and an electrical resistivity of at least 1010? m, said insulating layer has a thickness in the interval 10-200 nm. Advantages include possibility to utilize thin layers of electrolytes without creating large ohmic losses, structural batteries can comprise carbon fibers.

Abstract: There is provided a battery and battery half cell comprising at least one carbon fiber as negative electrode, said carbon fiber comprising a plurality of layers with carbon atoms having graphite structure, and ability of intercalating metal ions, said carbon fiber having a strength of at least 1 GPa and a stiffness of at least 100 GPa in the longitudinal direction of said carbon fiber, said carbon fiber at least partially coated with at least one electrically insulating polymer layer acting as an electrolyte, wherein said insulating polymer layer is permeable for metal ions, and has a stiffness of at least 0.5 MPa, an ionic conductivity of at least 10?10 S/m and an electrical resistivity of at least 1010 ?m, said insulating layer a thickness in the interval 10-200 nm. Advantages include possibility to utilize thin layers of electrolytes without creating large ohmic losses, structural batteries can comprise carbon fibers.