41.
    发明专利
    未知

    公开(公告)号:AT346349T

    公开(公告)日:2006-12-15

    申请号:AT93115466

    申请日:1993-09-24

    Abstract: An optical scanning module has orthogonally-mounted first and second circuit boards (416,418) which carry circuitry that operates together to produce the signals necessary for operation of the module, and to process electrical signals from a reflected light detector. In a preferred embodiment, scanning of the light beam is achieved by reflecting the beam from a mirror (159) which is mounted to a support (103) which itself is mounted for reciprocal oscillation on leaf springs (121,123). Oscillation is provided by the interaction of a permanent magnet (109) on the support (103), and a stationary electro-magnet (133). The invention also encompasses systems for scanning the beam simultaneously in two orthogonal directions, and for producing a moving zig-zag scanning pattern.

    Optical indicia scan module
    45.
    发明专利

    公开(公告)号:GB2387701A

    公开(公告)日:2003-10-22

    申请号:GB0230159

    申请日:2002-12-24

    Abstract: An optical scan module, for example for in a bar code reader including a light source, 208 mounted on the base of the module and at least one fold mirror, 213,215, for reflecting and redirecting the scanning light beam along an optical path, 212,214,206, which is parallel to the base and over at least a portion of the top side surface of the module, so that the scanning beam is longer than the length of the side of the module which the scanning beam passes over enroute to the target. Focusing optics for collecting light reflected from the indicia comprises either an element configured such that its first surface receives the incoming light, and the second surface attenuates rays collected from the middle at the scan line relative to the rays collected from the ends or an element having a cross-section of a cosine function over one cycle. The sensor for detecting the reflected light has selectively activatable discrete 1 and 2 portions corresponding to the position of the spot beam on the target indicia.

    46.
    发明专利
    未知

    公开(公告)号:DE69331614D1

    公开(公告)日:2002-04-04

    申请号:DE69331614

    申请日:1993-06-02

    Abstract: To read optically encoded information over a wide range of densities, the present invention provides a spacer system on the tip of an optical reader. The optical reader may be a contact wand type device, for example including a fixed laser emitter. Alternatively, the optical reader may be a moving spot scanner. In either case, the emitter element of the optical reader produces a diverging beam of light. During a reading operation, the spacer contacts the object surface on which optically encoded indicia is formed. The spacer selectively defines at least two different distances between the light emitter, or the focal point of the emitted beam of light, and the object surface. Because of the beam divergence, the diameter of the beam at its point of impact on the object surface will be different for each of the two different distances. The different beam diameters provide the optical reader with different effective sensing spots for reading different density symbols. The present invention also incorporates an optical reader, typically a moving spot laser scanner, into a number of different types of computer data input devices, such as the stylus of a digitizer table and a computer "mouse." In one such integrated terminal embodiment, the optical reader is combined with a touch sensitive display and data input device.

    49.
    发明专利
    未知

    公开(公告)号:DE69131573T2

    公开(公告)日:2000-04-06

    申请号:DE69131573

    申请日:1991-12-30

    Abstract: A system for reading bar code symbols or the like, having a scanner for generating a laser beam directed toward a target and producing a narrow first raster scanning pattern that enables the user to manually aim and direct the beam to the location desired by the user and a relatively wider second raster scanning pattern that sweeps an entire symbol to be read, and a detector for receiving reflected light from such symbol to produce electrical signals corresponding to data represented by such symbol.

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