X-RAY OPTICAL ENDOSCOPE Russian patent published in 2011 - IPC G01N23/04 G01N21/01 A61B1/00 

FIELD: physics.

SUBSTANCE: X-ray endoscope has a housing in which there are optically interfaced X-ray and viewing optical channels for projecting object images on a CCD matrix of a television system which can then be viewed on a monitor. There is also a spherical mirror made from organic glass lying on the entrance face of a first focusing cone and the diametre of which is equal to the diametre D of this face. The optical axis of the spherical mirror coincides with the optical axis of the first focusing cone. A second point light-emitting diode is placed on the axis passing through the centre of a first semitransparent mirror, perpendicular to the axis at a distance D from the top of the spherical mirror at a point which corresponds to the front focus of the spherical mirror. After autocollimating reflection from the surface of the spherical mirror, the light flux of the said light-emitting diode is converted to a parallel light beam propagating in the same direction as the optical axis of the first focusing cone and which forms on the object an image of a light disc with diametre D, the value on the object of which remains constant when the distance from the object to the endoscope changes and from the value of the image on the monitor from which the current scale of the image in the viewing optical channel is estimated, which is necessary for estimating the corresponding division value of the metric scale used to measure a defect and/or structural elements of the object.

EFFECT: small size and weight of the endoscope, as well as high quality of the image obtained using the X-ray and viewing optical channels.

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