Abstract: A vehicle light controller that uses a microprocessor to automatically control the headlights is disclosed. An infrared sensor is installed in the vehicle to detect feedback signal to transmit the signal to the microprocessor. When the weather is cloudy, dark or rainy, the headlights can be automatically turned on to prevent car accidents and further enhance the safety and convenience when the user drives the vehicle. When infrared intensity is weak, the infrared sensor is triggered to provide a feedback signal to the microprocessor to turn on the headlights. When the infrared intensity reaches a predetermined level, the feedback signal is sent to the microprocessor to shut off the headlights. A monitoring circuit can shut off the power supply when the microprocessor does not work properly or transmit wrong feedback signals to prevent the headlights from being turned on abnormally and prevent the power supply from being uncontrollably drained.

Abstract: A steering wheel that can be quickly assembled and disassembled includes a fixed unit and a connecting unit, and a first interval is formed at a bottom portion of the fixed unit. Several ball slots are formed outside the connecting portion, and several fixed connecting points are formed at the end of the connecting portion. The connecting unit has a top portion and a conjugating portion, wherein the conjugating portion has several rolling balls and movable connecting points, and the connecting unit covers the connecting portion of the fixed unit through the conjugating portion. The rolling balls and ball slots are used to form a structure for quickly assembling and disassembling the steering wheel, and when the rolling balls are not aligned with the ball slots, the fixed connecting points and movable connecting points have an appropriate space in between to avoid a short circuit.

Abstract: A length of tubing 22 has a luer 25 connected to one end. The luer 25 includes a lumen 30 of a length to frictionally engage with and seat against a mating recess of a first ophthalmic surgical instrument. A locking hub 36, lockingly engages with a mating structure of a second surgical instrument. This structure then allows the length of tubing 22 to be alternately connected to the first and second ophthalmic surgical instruments and allows the length of tubing 22 to be used on multiple instruments during a single surgical procedure.