Abstract: A lighting system for plant cultivation comprises a light source, a light source driving unit that drives the light source, and a control unit that transmits a pulse signal to the light source driving unit. The control unit comprises a first pulse generating unit that generates a first pulse signal (S1) of a predetermined frequency, a second pulse generating unit that generates a second pulse signal (S2) of a frequency different from the predetermined frequency, and a pulse signal selecting unit that selects any one of the first pulse signal (S1) and the second pulse signal (S2) to transmit the selected one to the light source driving unit.

Abstract: The lighting system for plant cultivation (9) according to the present invention is configured to be capable of switching between an intermittent lighting mode and a continuous lighting mode. The intermittent lighting mode is a mode in which a light source emits light with a lighting cycle comprising a light period of turning on the light source for a predetermined time period and a dark period of turning off the light source for a predetermined time period. The continuous lighting mode is a mode in which the light source continuously emits light. In another aspect, the lighting system for plant cultivation (9) comprises a light source (3), a light source driving unit (2) that drives the light source (3), and a control unit (1) that transmits a pulse signal to the light source driving unit (2).

Abstract: Disclosed herein is an edge-type lighting device which is configured such that when a light guide plate thermally expands, a light source is prevented from being pressed. In the lighting device according to the present invention, a light guide plate (2) is slidably supported so that the light guide plate (2) can expand in the planar direction, and a light source (3) disposed on an edge of the light guide plate (2) is movably supported in the same direction. A light-guide-plate stopper (4b) is disposed at a position facing an edge (2A) of the light guide plate (2) to prevent the light guide plate (2) from expanding excessively. Thus, the light source (3) can be prevented from being pressed toward a frame member (4).

Abstract: The present invention relates to an edge-type lighting device using an LED light source which has high light-emitting efficiency regardless of thermal expansion of a light guide plate. An LED light source (3) is disposed on an edge of a light guide plate (2) so as to be movable in the normal line direction (±n) of the edge (2c) of the light guide plate. A slide member (7) is slidably disposed on the rear surface of the LED light source. A spring (8) is disposed in a frame member (4) on the rear surface of the slide member. Thus, the LED light source can always be pressed toward the edge of the light guide plate regardless of the thermal expansion of the light guide plate. Because the spring has a simple structure, the lighting device can be compact compared to the case where a coil spring is used.

Abstract: Disclosed herein is an edge-type lighting device which is configured such that when a light guide plate thermally expands, a light source is prevented from being pressed. In the lighting device according to the present invention, a light guide plate (2) is slidably supported so that the light guide plate (2) can expand in the planar direction, and a light source (3) disposed on an edge of the light guide plate (2) is movably supported in the same direction. A light-guide-plate stopper (4b) is disposed at a position facing an edge (2A) of the light guide plate (2) to prevent the light guide plate (2) from expanding excessively. Thus, the light source (3) can be prevented from being pressed toward a frame member (4).

Abstract: Projections are located at an inner face of a case member so as to form air passages in first and second directions. A disposable pocket heater and a gel container are set inside the projections and the case member is assembled. Since the air passages in both directions are formed on a whole surface of the disposable pocket heater, oxygen is supplied to the whole disposable pocket heater and the whole gelling agents in the gel container is heated to almost uniform temperature.

Abstract: Projections are located at an inner face of a case member so as to form air passages in first and second directions. A disposable pocket heater and a gel container are set inside the projections and the case member is assembled. Since the air passages in both directions are formed on a whole surface of the disposable pocket heater, oxygen is supplied to the whole disposable pocket heater and the whole gelling agents in the gel container is heated to almost uniform temperature.

Abstract: A wireless sensor system according to the invention has a wireless sensor device for detecting something and a wireless base station for exchanging data with the wireless sensor device by wireless. The wireless sensor device 2 has a sampling signal transmitting portion for transmitting a sampling signal, and the wireless base station has a sensitivity detecting portion for detecting a receive sensitivity of the sampling signal, and a sensitivity transmitting portion for transmitting a result detected thereby to the wireless sensor device. And, the wireless sensor device has at least one of a LED and a buzzer for informing of the receive sensitivity on the basis of data from the sensitivity transmitting portion. A worker who tries to locate the wireless sensor device can easily know the best place for location with the LED or the like.

Abstract: A wireless sensor system according to the invention has a wireless sensor device for detecting opening and closing of a door or a window, and a wireless base station for exchanging data with the wireless sensor device 2 by wireless. A detected direction setting portion for setting a direction where an acceleration is detected and a sensitivity level setting portion for setting a sensitivity level of the wireless sensor device are located on the wireless base station side so as to set the detected direction and the sensitivity level on the wireless base station side. Then, it is not necessary to set both on the wireless sensor device, and the setting is simple, thereby.

Abstract: A wireless sensor system according to the invention has a wireless sensor device for detecting something and a wireless base station for exchanging data with the wireless sensor device by wireless. The wireless sensor device 2 has a sampling signal transmitting portion for transmitting a sampling signal, and the wireless base station has a sensitivity detecting portion for detecting a receive sensitivity of the sampling signal, and a sensitivity transmitting portion for transmitting a result detected thereby to the wireless sensor device. And, the wireless sensor device has at least one of a LED and a buzzer for informing of the receive sensitivity on the basis of data from the sensitivity transmitting portion. A worker who tries to locate the wireless sensor device can easily know the best place for location with the LED or the like.

Abstract: A speaking terminal 3 connected with a communication network has means for voice speaking 18 for speaking with voice by voice packets through the communication network, and means for measuring and computing speaking quality 15, for measuring and computing evaluation data of speaking quality concerning voice speaking executed by the means for voice speaking 18. And, a network speaking control unit, providing means for collecting evaluation data of speaking quality, for collecting evaluation data of speaking quality measured and computed, is provided, connecting with the speaking terminal 3. Then, the quality of network speaking can be evaluated with a simple structure.

Abstract: A quality evaluation equipment 1 of a network speaking system capable of measuring and computing speaking quality of voice speaking by exchanging speaking data comprised of voice packets 6 through a communication network 2. A speaking control unit 50 is provided with a computing contents detecting portion for detecting kind and number of measurement and computing of quality of speaking in the respective speaking terminals 3, 7, a quantity of load computing portion for computing quantity of load on the basis of the kind and the number of the measurement and the computing, and a computing contents record portion for recording the kind and the number of measurement and computing, and quantity of load, thereby computing the computing contents and the quantity of load.

Abstract: In a network speaking for speaking with voice by exchanging voice packets 6 between a plurality of speaking terminals 3 connected with a communication network 2, a speaking quality monitoring unit 5 capable of computing speaking quality evaluation data is provided between the communication network and the speaking terminal, and the network speaking control unit 16 is provided with network speaking quality judging means 20, 22 for collecting speaking quality evaluation data computed by a plurality of the speaking quality monitoring units and computing and judging speaking quality of the communication network. The quality of the voice speaking exchanged between the speaking terminals can be judged without delay.

Abstract: Logger equipment, which is connected with transmission medium means of digital communication information, capable of recording speaking information of speaking machine, is provided.

Abstract: A density curve is derived from a plurality of known output data values and a plurality of density values which are obtained by the known output data values. Then, a desired gamma correction curve is formed in accordance with the thus derived density curve. Finally the thus formed gamma correction curve is finely adjusted in accordance with a desired correction curve which is selected from a plurality of previously prepared correction curves. In order to simplify the data entering operation, a small number of data values are entered and then an interpolation is performed to obtained a necessary number of data values. The gamma correction curve is formed only when the apparatus is installed, the property of the developing solution is changed or the record film is changed. In this manner, the optimal gamma correction curve can be simply and directly formed.