Shimadzu Corporation

Other

Hideki Soya

Yasushi Kondo

Kenji Takubo

Takeharu Etoh

Toshiro Kimura

Daijiro Kato

A lamp drive device L is provided that can both light a lamp and sustain a discharge by applying a trigger voltage while a direct current voltage is supplied from a power supply circuit to the electrodes of lamp before the start of discharge. The device includes a reference amount-of-change storage unit for storing a threshold value T for the amount of change in the electrode voltage before and after start of discharge, a difference calculation unit for calculating the difference (A&#x2212;B) between the voltage monitor value B after the start of discharge and the voltage monitor value A before the start of discharge, and a lighting status determination unit for determining the lighting status by comparing the difference (A&#x2212;B) and the threshold value T and making the determination based on the change in voltage before and after the discharge.

Lamp drive device

When an external trigger is received as a predetermined signal after receiving a signal concerning a start of imaging, controls are carried out to stop driving of a CCD type solid-state image sensor (CCD) from receipt of the signal concerning a start of imaging until receipt of the external trigger, and to start the driving of the CCD synchronously with the receipt of the external trigger. Thus, the driving of the CCD is not started immediately upon receipt of the signal concerning a start of imaging, and the driving time of the CCD can be shortened by the time from receipt of the signal concerning a start of imaging until receipt of the external trigger, thereby suppressing heat generation of the CCD.

Method of driving an image sensor, and an image pickup apparatus

A photographing apparatus includes a photographing plan memory for setting photographing conditions based on a predetermined photographing plan, a vibration sensor for detecting vibration caused by an explosion of a balloon serving as a photographic subject, and a trigger generating circuit for taking in the timing of detection by the vibration sensor as a trigger. The above photographing plan is prepared beforehand for changing from low-speed photography to high-speed photography in response to the trigger, and changing from high-speed photography to low-speed photography after acquiring '40 frames'. With this plan, the low-speed photography is adopted before and after the balloon explosion, an amount of photographic data tends to be small. Photographs may be taken out within limited photographic data, even with a limited memory capacity. At a moment of balloon explosion, rapid variations due to the explosion may be photographed by high-speed photography with high accuracy.

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Kyoto, Japan

Hideki Soya