摘要:
High speed scanning arrangements in scanners for reading bar code symbols by oscillating a scanner component in single or multi-axis scan patterns.
摘要:
High speed scanning arrangements in scanners for reading bar code symbols by oscillating a scanner component in single or multi-axis scan patterns.
摘要:
A flexible member mounts a scanner component for angular oscillating movement relative to a support about an axis in alternate circumferential directions between scan end positions. The scanner component is electromagnetically driven in order to scan a light beam across optically encoded indicia to be read. A permanent magnet is connected to the scanner component and magnetically interacts with an electromagnetic coil so as to impart a force to the magnet and move the scanner component from a rest position to at least one of the scan end positions.
摘要:
High speed scanning arrangements in scanners for reading bar code symbols by oscillating a scanner component in single or multi-axis scan patterns.
摘要:
High speed scanning arrangements in scanners for reading bar code symbols by oscillating a scanner component in a single line pattern, the scanner assembly being suspended from a flexural assembly for oscillating movement. A drive is operative for moving the scanner assembly from a rest position in a circumferential direction to one of two scan end positions. The flexural assembly is tensioned and stores energy, which energy is released in order to return the scanner assembly in the other circumferential direction to the other scan end position.
摘要:
High speed scanning arrangements in scanners for reading bar code symbols by oscillating a scanner component in a single line pattern, the scanner assembly being suspended from a single flexural assembly for oscillating movement. The flexural assembly includes a flexure that lies in a plane extending through a central region of a scan mirror in a direction orthogonal to the plane of the mirror. A drive is operative for moving the scanner assembly from a rest position in a circumferential direction to one of two scan end positions. The flexural assembly is tensioned and stores energy, which energy is released in order to return the scanner assembly in the other circumferential direction to the other scan end position.
摘要:
High speed scanning arrangements in scanners for reading bar code symbols by oscillating a scanner component in a single line pattern, the scanner component being suspended from flexible, resilient spring portions extending in different paths away from the scanner component to a pair of spaced-apart regions on a support.
摘要:
A scan pattern generator for use in a bar code reader which uses a single drive (one coil and one magnet) to produce movement of a reflective surface so as to produce an oscillating movement of the surface in two directions, thereby forming a raster-type scanning pattern when a light beam is reflected off the surface.
摘要:
High speed scanning arrangements in scanners for reading bar code symbols by oscillating a scanner component in a single line pattern, the scanner component being suspended from a flexural assembly for oscillating movement. A stop is operative for contacting the scanner assembly in the event that the arrangement is subjected to external shock forces.
摘要:
High speed scanning arrangements in scanners for reading bar code symbols by oscillating a scanner component in a single line pattern, the scanner component being suspended from a holder including flexible, resilient spring portions extending in different paths away form the scanner component to a pair of spaced-apart regions on a support. A stop is fixed to the support, for abutting the holder in the event that the arrangement is subjected to external shock forces.