Abstract: A display device includes an optical assembly for displaying images, a frame, and an adjustment assembly including a spherical bearing a connecting rod, and a cover. The frame and the optical assembly are arranged at intervals, a first recess is concave in a first direction from the frame, a through hole penetrates the frame and communicates with the first recess; a part of the spherical bearing is received in the first recess and abuts against an inner surface defining the first recess; the connecting rod extends through the through hole, one end of the connecting rod is fixed to the spherical bearing, and the other end is connected to the optical assembly; the cover is arranged on a side of the spherical bearing facing away from the frame and adjustably connected to the frame in the first direction to selectively apply or remove a pressure to the spherical bearing.

Abstract: A heat dissipation device includes a housing assembly, a sliding assembly, and a linkage assembly. The housing assembly includes a receiving cavity and a cooling hole communicating with the receiving cavity. The sliding assembly includes a sliding member and a rack. The sliding member is located in the receiving cavity and slidably connected to a side of the housing assembly with the cooling hole, the rack is fixedly connected to the sliding member. The linkage assembly includes a rotating shaft and a gear. The rotating shaft and the gear are located on the same side of the sliding member, the rotating shaft is fixed on the housing assembly and extends through the gear, the gear is rotatably sleeved on the rotating shaft and is engaged with the rack to drive the sliding member to slide, thereby adjusting an area of the cooling hole blocked by the sliding member.

Abstract: An optical device including a partial or incomplete optic configured operatively as an add-on (e.g., supplemental lens/optic) for an (existing) optical element or system, the partial or incomplete optic having an active area configured in relation to the optical element or system such that the partial or incomplete optic controls or changes foci of light incident upon or provided to the active area, but does not control or change foci of light bypassing optically relevant portions of the partial or incomplete optic, and associated methods for enhancing vision.

Abstract: An optical device (2300) including a partial or incomplete optic (2320) configured operatively as an add-on (e.g., supplemental lens/optic) for an (existing) optical element or system, the partial or incomplete optic having an active area configured in relation to the optical element or system such that the partial or incomplete optic controls or changes foci of light incident upon or provided to the active area, but does not control or change foci of light bypassing optically relevant portions of the partial or incomplete optic, and associated methods for enhancing vision.

Abstract: An optical device (2300) including a partial or incomplete optic (2320) configured operatively as an add-on (e.g., supplemental lens/optic) for an (existing) optical element or system, the partial or incomplete optic having an active area configured in relation to the optical element or system such that the partial or incomplete optic controls or changes foci of light incident upon or provided to the active area, but does not control or change foci of light bypassing optically relevant portions of the partial or incomplete optic, and associated methods for enhancing vision.

Abstract: The invention provides a molded ophthalmic lens having at least first and second optical components, wherein the first optical component is cast molded to encapsulate the second optical component such that the first optical component provides an optical function and the second optical component provides an additional optical function. The invention additionally provides a process for producing a molded composite ophthalmic lens.