Abstract: Provided is a method of synthesizing apatite powder by emitting a laser beam to a surface of a substrate immersed in a precursor solution. The method is including immersing a substrate in an apatite-forming precursor solution, emitting a laser beam to a region on a surface of the substrate immersed in the precursor solution, and obtaining apatite powder generated in the precursor solution.

Abstract: The present invention relates to a reflecting cap for enhancing an illuminance of an illumination, which can enhancing the illuminance, protect skin by UV blocking, prevent dazzling, used with being inserted on lamp of various existing illuminations and adjust an irradiation angle of the light freely. To this end, the present invention provides a reflecting cap for enhancing an illuminance of an illumination, which includes a sheet having a shape that is inserted on a lamp of an illumination so as to enhance an illuminance of the illumination. In accordance with the present invention, an illuminance is increased and an economic effect can thus be expected. Further, it is possible to adjust an irradiation angle of the illumination light by adjusting an angle of the sheet inserted on the lamp of the illumination.

Abstract: The present invention relates to a device for the automatic shut-off of equipment's stand-by power which can switch on or off the power for a set of electric and electronic appliances and can reduce the power consumption in a state of waiting for use. The invention provides a device for the automatic shut-off of equipment's stand-by power which particularly comprises a first relay for switching contacts of the first line, a second relay for switching contacts of the second line, and a power switching controller for detecting whether the light is present and for sequently switching the contact states of the first relay and the second relay depending on the result of the light detection to thereby allow or cut off the commercial alternating current through the first and second lines.

Abstract: The present invention relates to a data protective receptacle with the power saving function to accomplish the power saving by getting a sub-receptacle to be automatically controlled so that it may be on or off by a main receptacle. Since this invention can get the power for driving peripheral appliances automatically to be off when the main power for the computer system gets to be off, it can reduce the consumption current thereof while it stands by. Also, this invention gets both alternating-current (AC) power lines to be off when the main system gets to be off, and thereby, it can cut off any leaking current flowing between one power line and the ground line so that the power consumption may be reduced while the system stands by.

Abstract: A power supply apparatus for a gas tube including: a first rectifying portion for bridge-rectifying an alternating current input thereto into a direct current, a second rectifying portion for bridge-rectifying the output voltage of the first rectifying portion into a direct current again, a switching means for receiving stable power from the second rectifying portion and for controlling the operation of a high voltage transformer driving portion, an oscillating frequency and duty cycle ratio controller for controlling the oscillating frequency and duty cycle ratio of the switching means, the high voltage transformer driving portion selectively interrupting a flow of current of the high voltage transformer in accordance with the output of the switching means, and a high voltage output preventing portion for halting the operation of the frequency oscillation and duty cycle ratio controller by being turned on when a secondary side center tap voltage of the high voltage transformer is detected to be beyond a part

Abstract: A neon circuit includes a protective function and provides for an adjustable output voltage and an adjustable luminous intensity. The neon circuit when there is a neon bulb present as the load such as a sodium or mercury lamp provides for power saving and its life is lengthened with high dependability. The circuit includes a line filter and a high powered factor compensation circuit.