Abstract: This endoscope system is provided with an endoscope and an image receiving apparatus to be fitted to the eyepiece part of this endoscope. The endoscope has an elongate insertable part, an objective optical system provided in the tip part of the insertable part, an eyepiece part provided on the rear end side of the insertable part and an image guide consisting of a fiber bundle transmitting the image formed by the objective optical system to the eyepiece part. The image receiving apparatus has an image receiving part of many pixels on which the image from the eyepiece part is formed. Further, the endoscope system is provided with a vibrating apparatus relatively vibrating the image formed on the image receiving part and the image receiving part. The image receiving apparatus is a television camera, co-viewing apparatus or electronic still camera.

Abstract: An endoscope apparatus for inspecting an object including an insertion section insertable into the object and having a distal end and a proximal end, an image guide arranged within the insertion section and having entrance and exit ends arranged at the distal and proximal ends of insertion section, respectively, an objective lens system arranged at the distal end of insertion section for forming an optical image of the object onto the entrance end of image guide, an eyepiece lens system arranged at the proximal end of insertion section for projecting the optical image transmitted through the image guide onto an observating position, a first piezo-electric bimorph arranged at the distal end of insertion section for vibrating the entrance end of image guide in a direction perpendicular to a longitudinal axis of the insertion section over a given distance, a second piezo-electric element arranged at the proximal end of insertion section for vibrating the exit end of image guide in the same direction and over the

Abstract: An endoscope with a device for raising a medical instrument, comprising an operating section and an insertion section having a distal end portion. A storage room having an opening is provided in a distal end portion and a channel duct communicating with the storage room is located in the insertion section. A medical instrument raising block, mounted in the storage room, serves to raise the distal end portion of the medical instrument which, after passing through the channel duct, extends from the opening. A raising operation wire runs through the passageways of the operating section and the insertion section and the distal end of the wire is attached to the medical instrument raising block. A device for preventing the medical instrument from being caught by the wire is formed at the top of one side wall, very close to the wire, of the side walls defining the storage room.

Abstract: A leakage detector of endoscopes inspects cracks and pinholes within an endoscope of the perfect watertight structure by detecting leaked air therefrom while applying compressed air in the endoscope and, when no defect such as cracks and pinholes exists, controls by means of a relief valve so that the rise of air pressure within the endoscope assumes a given value.

Abstract: A semiconductor piezoresistive strain transducer having a reduced neck with an hour-glass configuration interconnecting two pads, wherein the reduced neck and the pads have configurations the relation between which prevents corner tips of the pads from coming into contact with a surface of the slender center region of the reduced neck and producing a micro-defect on it, whereby the danger of breaking at the reduced neck is reduced.