An ultrasonic scanner, comprising a holder for supporting the ultrasonic probe, said holder being rotatably pivoted by a pivoting shaft, a rotating shaft whose axis is perpendicular to the axis of the pivoting shaft pivoting the holder, and a motion-converting mechanism for converting the rotation of the rotating shaft to a rotatingly reciprocating motion of the ultrasonic probe holder. The ultrasonic scanner can be made small in size, is capable of freely adjusting the rotatingly reciprocating ...

An optical scanner for scanning an image on a document to produce an electrical signal representing the image density of the image at successively scanned points positioned along a scan line on the document includes a platen for supporting the document in a scan plane. A rotatable mirror in the scanner optical system is rotated at a non-uniform angular velocity to scan the document at a controlled scan rate which may be selected as a uniform scan rate. Rotation of the mirror is controlled by mea...

The disclosure relates to a radial scanner usable for scanning a small volume of a test sample in a differential light scattering analyzer. In the scanner a beam of collimated light impinges on a rotating planar mirror located above or below the test sample on an axis passing through the small volume. A beam of light reflected from the mirror sweeps a conical mirror, having its reflecting surface curved about a reference axis passing through the small volume. The small volume is scanned by a bea...

An electrical signal recording and playback system is described in which an analog input signal is converted to a digital signal that pulses a light source to form a single, series-recorded track of binary coded digital information including information spots arranged in groups separated by synchronizing spots recorded on a photographic film which is played back in a similar manner. The photographic film is a compact, permanent record of long, useful lifetime which may be photographically copied...

A radial scanning device which provides a moving adjustable slit or window hat transverses along an aligned path with respect to a radiation detection device. The repetitive slit motion of the scanning device allows sampling of the liner propellant interface area of a missile motor when the missile is circumferentially rotated.

An oscillating scanner including a mechanism for oscillating a mirror at large amplitudes of, for example, plus and minus one radian. A spiral spring is connected at one end to a driven support body for the mirror and at the other end to a counterbalance body. The driven and counterbalance bodies are concentrically mounted by bearings for oscillation upon a foundation mounted shaft. Drive means, situated in a mechanically parallel relationship with the spring, supplies energy in a cyclic manner ...

An optical scanner wherein a bundle of scanning light rays and a bundle of received light rays are guided via at least one optical element commonly associated with both of the aforesaid bundles of light rays. The impact areas for both bundles of light rays at the optical element are spatially offset with respect to one another and are located at a common impact surface of the optical element.

A flux scanner which is comprised of a rotating polygon for scanning a beam of radiated flux transverse a photoreceptive medium. In the beam path between the flux source and the polygon, an astigmatic-beam expander lens is employed to focus the flux distributions to a spot at an image plane. The astigmatic lens is configured so as to produce a very narrow beam of flux to control the size of the spot in a direction orthogonal to the transverse direction, without any loss of efficiency. Between th...

An apparatus for reproducing a still picture includes a flying spot scanner having its vertical deflection device for scanning a video film which has a plurality of luminance signal recorded frames and frames on which color signals are recorded together with pilot signals. Each frame is separated from another by a frame margin. A control device is provided for obtaining automatic coincidence of the position of a raster formed by the scanning with that of a frame. The control device comprises a f...

An optical scanner is disclosed for scanning a three-dimensional object or a two-dimensional document located in a space which is open and exposed to ambient light. Light from a laser is directed through a beam splitter and a deflector to the object or document, from which it is reflected back through the deflector, and from the beam splitter through a narrow-band optical interference filter to a photodetector. The laser light is modulated at a carrier frequency rate, and the electrical signal f...