Abstract: An eyeglasses assembly includes two lenses, a frame, and two positioning blocks. The frame includes two frame portions. Each frame portion includes upper and lower portions spaced from each other by a notch. The upper portion includes an insertion hole. The lower portion includes an engaging groove aligned with the insertion hole. At least one engaging hole extends from an outer surface of the lower portion to the engaging groove in a thickness direction. Each positioning block is mounted in an associated insertion hole and an associated engaging groove. Each positioning block includes at least one assembling hole to be aligned with the at least one engaging hole. Each of a plurality of fasteners extends through the at least one assembling hole of an associated one of the two positioning blocks and the at least one engaging hole of the associated lower portion.

Abstract: An eyeglasses assembly includes two lenses, a frame, and two positioning blocks. The frame includes two frame portions. Each frame portion includes upper and lower portions spaced from each other by a notch. The upper portion includes an insertion hole. The lower portion includes an engaging groove aligned with the insertion hole. At least one engaging hole extends from an outer surface of the lower portion to the engaging groove in a thickness direction. Each positioning block is mounted in an associated insertion hole and an associated engaging groove. Each positioning block includes at least one assembling hole to be aligned with the at least one engaging hole. Each of a plurality of fasteners extends through the at least one assembling hole of an associated one of the two positioning blocks and the at least one engaging hole of the associated lower portion.

Abstract: An optical control element for a light beam to pass through and including a transparent substrate and a plurality of reflective structures is provided. The transparent substrate has a light-entering surface and a light-emitting surface opposite to each other. The reflective structures are disposed in the transparent substrate. Each of the reflective structures has a bottom surface adjacent to the light-entering surface and a side surface connected to the bottom surface. A width of each reflective structure in a direction of a horizontal view angle is gradually decreased from one end adjacent to the light-entering surface to one end away from the light-entering surface. The bottom surface and the side surface respectively reflect parts of the light beam, and in a direction vertical to the bottom surface, transmission directions of the light beam reflected by the bottom surface and that reflected by the side surface are opposite to each other.

Abstract: A pair of eyeglass includes an eyeglass frame having a central portion with two frame portions respectively and receiving two lenses. The central portion includes a notch between the frame portions. An upper portion of the central portion includes an insertion hole extending in the vertical direction. An opening is defined in an upper end of the insertion hole. A lower portion of the central portion includes an engaging groove extending in the vertical direction and aligned with the insertion hole. At least one fixing hole extends forward from a rear face of the lower portion and intercommunicates with the engaging groove. A coupling block is inserted downwardly into the insertion groove and the engaging groove. At least one fastener extends through the at least one fixing hole from the rear face of the lower portion and engages with at least one fixing hole of the coupling block.

Abstract: A pair of eyeglass includes an eyeglass frame having a central portion with two frame portions respectively and receiving two lenses. The central portion includes a notch between the frame portions. An upper portion of the central portion includes an insertion hole extending in the vertical direction. An opening is defined in an upper end of the insertion hole. A lower portion of the central portion includes an engaging groove extending in the vertical direction and aligned with the insertion hole. At least one fixing hole extends forward from a rear face of the lower portion and intercommunicates with the engaging groove. A coupling block is inserted downwardly into the insertion groove and the engaging groove. At least one fastener extends through the at least one fixing hole from the rear face of the lower portion and engages with at least one fixing hole of the coupling block.

Abstract: A fan includes a fan frame having an upright barrel, a fan blade unit having a fan hub with radial blades, and a driving module formed of a stator, an axle bearing, a core shaft and a rotor for causing rotation of the fan hub with the blades relative to the stator. The stator has a collar affixed to the barrel of the fan frame, radial ribs extending from and spaced around the periphery of the collar, and three-dimensional wings respectively connected to the free ends of the radial ribs each three-dimensional wings having a smoothly arched and radially and axially extending outer surface.