Abstract: [Problems] To provide a planar inductor that can be easily designed in any size without restricting coil characteristics, that supplies the necessary power corresponding to the area when a pair of inductors are placed facing each other to carry out non-contact power transmission, and that has greater design flexibility that allows for setting separation cut-off lines with relative freedom.

Abstract: To provide a sample-and-hold method which can limit the storage capacity of storage media needed to a bare minimum and can independently manage a series of data contained in a predetermined interval before the arrival time of a trigger signal and a series of data contained in a predetermined interval after the arrival time of the trigger signal by separating them clearly.

Abstract: To provide a sample-and-hold method which can limit the storage capacity of storage media needed to a bare minimum and can independently manage a series of data contained in a predetermined interval before the arrival time of a trigger signal and a series of data contained in a predetermined interval after the arrival time of the trigger signal by separating them clearly.

Abstract: A photo-detection adapter for an automatic strobe comprising a mounting means attachable to a barrel of a photographic lens, an external photo-detection part supported by the mounting means so as to change a detection direction for properly receiving a reflection light from a photographic object, a light conduction means for conducting the reflection light from the photographic object to a photo-detection element disposed in the strobe, and a coupling means for holding the output end of the light conduction means so as to face to the photo-detection element in the strobe.