Abstract: A light-emitting device, including a first type semiconductor layer, a patterned insulating layer, a light-emitting layer, and a second type semiconductor layer, is provided. The patterned insulating layer covers the first type semiconductor layer and has a plurality of insulating openings. The insulating openings are separated from each other. The light-emitting layer is located in the plurality of insulating openings and covers a portion of the first type semiconductor layer. The second type semiconductor layer is located on the light-emitting layer.

Abstract: A conveyor vehicle delay detection circuit comprises a time counter circuit, a sensor receiver circuit, and an alarm circuit. A plurality of conveyor vehicle sensors are connected to the sensor receiver circuit and are arranged on the circuit on which the conveyor vehicles run. The flow of the conveyor vehicles is evaluated by determining whether at least one of the conveyor vehicles has passed through one of the conveyor vehicle sensors within a predetermined time interval. If within the predetermined time interval, a conveyor vehicle has not passed through at least one of the conveyor vehicle sensors, a warning signal is output to alert an operator. Immediate and adequate dispositions for reparations thus can be taken such that a normal operation of the conveyance system can quickly resume.

Abstract: A conveyor vehicle delay detection circuit comprises a time counter circuit, a sensor receiver circuit, and an alarm circuit. A plurality of conveyor vehicle sensors are connected to the sensor receiver circuit and are arranged on the circuit on which the conveyor vehicles run. The flow of the conveyor vehicles is evaluated by determining whether at least one of the conveyor vehicles has passed through one of the conveyor vehicle sensors within a predetermined time interval. If within the predetermined time interval, a conveyor vehicle has not passed through at least one of the conveyor vehicle sensors, a warning signal is output to alert an operator. Immediate and adequate dispositions for reparations thus can be taken such that a normal operation of the conveyance system can quickly resume.

Abstract: A lamp having a lamp base, switches, AC power supply, a Philips lamp, battery, and circuit board. In addition to a conventional circuit of AC for starting the Philips lamp, there is also a loop using DC to start the Philips lamp. The loop includes the conversion, oscillation, and amplification of AC and DC, as well as an automatic switching circuit. A conductive ring clamp mounted on the Philips lamp may light up the lamp by means of the battery when there is no supply of AC.