Abstract: A passive Q switching laser device according to an embodiment of the present technology includes: a passive Q switching laser; a signal source; a modulation unit; and a power source unit. The passive Q switching laser includes an excitation light source that emits excitation light, and a resonator that is excited by the excitation light to emit oscillation light. The signal source outputs a drive signal for driving the excitation light source. The modulation unit modulates, on the basis of emission timing at which the oscillation light is emitted from the passive Q switching laser, the drive signal output from the signal source. The power source unit drives, on the basis of the drive signal modulated by the modulation unit, the excitation light source to emit the excitation light.

Abstract: Provided is a light source system capable of easily performing optical axis adjustment between units. The light source system includes a second unit that detects an optical axis and performs at least one of adjustment or monitoring of a laser beam, and a third unit that performs optical axis adjustment. The third unit is configured to be able to be placed on the light incident side of the second unit, and a control device controls the optical axis adjustment of the third unit on the basis of the detection result of the optical axis.

Abstract: A passive Q switching laser device according to an embodiment of the present technology includes: a passive Q switching laser; a signal source; a modulation unit; and a power source unit. The passive Q switching laser includes an excitation light source that emits excitation light, and a resonator that is excited by the excitation light to emit oscillation light. The signal source outputs a drive signal for driving the excitation light source. The modulation unit modulates, on the basis of emission timing at which the oscillation light is emitted from the passive Q switching laser, the drive signal output from the signal source. The power source unit drives, on the basis of the drive signal modulated by the modulation unit, the excitation light source to emit the excitation light.

Abstract: A thin film transistor substrate includes: a substrate; a thin film transistor and a capacitor formed on the substrate; and a protective film for protecting an electrode on a back surface side of the capacitor when an electrode on a front surface side of the capacitor is cut by irradiation with laser light, the protective film being disposed at such a position as to enclose a corner part of the electrode on the front surface side between the electrode on the front surface side and the electrode on the back surface side of the capacitor.

Abstract: A thin film transistor substrate includes: a substrate; a thin film transistor and a capacitor formed on the substrate; and a protective film for protecting an electrode on a back surface side of the capacitor when an electrode on a front surface side of the capacitor is cut by irradiation with laser light, the protective film being disposed at such a position as to enclose a corner part of the electrode on the front surface side between the electrode on the front surface side and the electrode on the back surface side of the capacitor.

Abstract: A battery charging apparatus for charging the electricity from a current source to a cell includes a variable resistor in parallel with the cell, a cell voltage detection unit for detecting the current voltage value of the cell and a comparator for comparing the current voltage value to a pre-set voltage value. The resistance value of the variable resistor is controlled responsive to the results of comparison so that the current from the current source is caused to flow through both the cell and the variable resistor with progress in the charging of the cell. The current is prevented from flowing through the cell when the cell is fully charged, so that overcharging is eliminated. If plural cells are charged in series, the control operation of not causing the current to flow through the fully charged cell can be carried out for each of the cells, so that integrated charging may be continued until all of the cells are fully charged thus shortening the cell charging time.