Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: An unmanned aerial vehicle (UAV) includes one or more processors, and a memory storing instructions. When executed by the one or more processors, the instructions cause the UAV to perform operations including: recognizing a first gesture of a hand; responsive to a recognition of the first gesture, moving the unmanned aerial vehicle to hover above the hand; detecting a distance between the unmanned aerial vehicle and the hand; responsive to a determination that the distance falls in a range, monitoring the hand to recognize a second gesture of the hand; and responsive to a recognition of the second gesture, landing the unmanned aerial vehicle on the hand.

Abstract: An unmanned aerial vehicle (UAV) includes one or more motors configured to drive one or more propellers of the UAV, a motion sensor configured to determine a motion parameter of the UAV, a memory storing instructions, and a processor coupled to the one or more motors, the motion sensor, and the memory. The processor is configured to execute the instructions to cause the UAV to determine whether a hand thrown mode is selected for the UAV and whether the one or more motors are turned off; responsive to a determination that the hand thrown mode is selected, receive a motion parameter from the motion sensor; and activate the one or more motors when the motion parameter is greater than a threshold value.

Abstract: An unmanned aerial vehicle (UAV) includes one or more processors, and a memory storing instructions. When executed by the one or more processors, the instructions cause the UAV to perform operations including: recognizing a first gesture of a hand; responsive to a recognition of the first gesture, moving the unmanned aerial vehicle to hover above the hand; detecting a distance between the unmanned aerial vehicle and the hand; responsive to a determination that the distance falls in a range, monitoring the hand to recognize a second gesture of the hand; and responsive to a recognition of the second gesture, landing the unmanned aerial vehicle on the hand.

Abstract: A window blind includes a headrail, a bottom rail, a plurality of slats horizontally provided therebetween, a ladder tape connecting the headrail and the bottom rail, and at least one cord adapted to collect and expand the blind. The ladder tape includes a first vertical member and a second vertical member which are provided in parallel, with a space left therebetween. The second vertical member is a piece of fabric made by interweaving multiple first vertical yarns and multiple first horizontal yarns. Multiple ring members are provided in a longitudinal axial direction of at least one of the first vertical member and the second vertical member. Since the aforementioned vertical components and loop segments are made by weaving, these components are prevented from being pulled out to form loops. The position of the cord is restricted to avoid excessive horizontal movement and the hazard of wrapping around human body parts.

Abstract: A ladder tape and a method of making the ladder tape are disclosed in the present invention, wherein, by using a knitting technique, at least two warps and at least one weft generate a knitting structure with chains on a front surface of a first band and a second band, which have the same width, and generate threading segments on a rear surface of each of the bands to bind the weft. Whereby, the resultant knitting structure has no discontinuous opaque shades, and the problem of unwanted light leakage can be avoided as well.

Abstract: A golf ball is easily found with lighting and buzzing. A battery in the golf ball is charged with a current from its induction coil through electromagnetic induction. On charging, the circuit in the golf ball can stop functioning. Thus, life-time of the battery is prolonged while power used is cut down. And, contamination owing to frequently replacing the battery is diminished.

Abstract: The invention relates to a door or window safety mechanism, mainly comprising a fixer and a door stop. The fixer is in an angular U shape to sandwich the lateral side of a door plank (window). The door stop comprises a stop body portion and a 90-degree bended upright-angled arm extending outwardly from the stop body portion; the end of the upright-angled arm and the fixer are fastened together. Upon application of the invention, the fixer simply sandwiches a door plank near a hinge on one lateral side of the door plank, in addition, the stop body portion of the door stop is bended toward the rear side direction of the fixer. When the door is opened, the stop body portion is sunk into a space between the door plank and the doorframe by means of the elasticity of the upright-angled arm to perform the anti finger pinch function and avoid the door plank to be closed.