Abstract: An electronic device includes a casing having a laser light reception region on its outer surface, a receiver that receives transmission data from a partner device, and a suppression member that suppresses leakage of the laser light between the partner device and the electronic device. The partner device includes a laser light emission component and a laser light modulator. The receiver detects, in a state where the partner device and the electronic device are positioned in to communicable positions where the laser light from the partner device is made incident inside the light reception region of the electronic device, the laser light incident inside the light reception region and demodulates the transmission data from the laser light detection result. The suppression member is disposed in at least an area surrounding the light reception region.

Abstract: An electronic endoscope system includes a light source device for emitting light and an electronic endoscope having a phosphor for producing white light with which a subject tissue in a body cavity is illuminated by causing the light to hit the phosphor as excitation light, and an image sensor for outputting image data of an image obtained by photoelectric conversion of reflected light of the white light illuminating the subject tissue, a wavelength detector for detecting a wavelength of the light, a calculator for calculating a wavelength shift amount which is a difference between a wavelength detected and a preset reference wavelength, a first correction unit for correcting a light amount of the light according to the calculated wavelength shift amount, and a second correction unit for correcting the gain in photoelectric conversion by the image sensor.

Abstract: An electronic device includes a casing having a laser light reception region on its outer surface, a receiver that receives transmission data from a partner device, and a suppression member that suppresses leakage of the laser light between the partner device and the electronic device. The partner device includes a laser light emission component and a laser light modulator. The receiver detects, in a state where the partner device and the electronic device are positioned in to communicable positions where the laser light from the partner device is made incident inside the light reception region of the electronic device, the laser light incident inside the light reception region and demodulates the transmission data from the laser light detection result. The suppression member is disposed in at least an area surrounding the light reception region.

Abstract: Structural members 1, 21 are connected by way of a connecting rod 3 which is attached to one structural member 1 and projects outward from connecting surface 2 of structural member 1 in the direction of other structural member 21, and a connector 23 which is attached to other structural member 21 and has a plurality of wedges 25 which engage with connecting rod 3 stopping it so that it cannot slip out. Connecting rod 3 is attached so as to be moveable in a direction parallel to connecting surface 2.

Abstract: One end of a circumferential joining end surface 2 of segments 1 which are joined together in the circumferential direction of an excavated tunnel is made the male side circumferential joining end surface 2a on which a male coupler 4 is provided, and the other end is made a female side circumferential joining end surface 2b on which a female coupler 5 is provided. On a base plate 7, a bolt 10, which provides an engagement part 16 comprising a flat washer 13, a disc spring 14, and a head 15, is erected, and made a male coupler 4. An engagement plate 23, formed by a notch 22 which engages the bolt 10, and is inserted and engaged between the base plate 7 and the engagement part 16, and tightly held by the elastic force of the disc springs 14, is made the female coupler 5.