Abstract:
A scanner (10) includes a carriage unit (20) having a cover (30) with an elongated slot (26) and groove (25) for helping to define a document illumination area on a document (16) to be scanned. A flexible reflector (24) is disposed within the groove for reflecting non uniform light in a substantially uniform manner. A print screen (90) disposed on the reflector (24) controls the dispersion of light from the reflector and includes an elongated narrow reflective center portion (96) sandwiched between a pair of elongated non reflective center portions (92,94) and a pair of spaced apart reflective end portions (93,98).
Abstract:
The invention relates to a joining construction for mounting the CCD cells of a color line camera on a color splitting prism (30) attached to a prism housing (2). Each CCD cell (6, 7, 8) is attached, by a first glue joint (13), to its fastening element (9), the length (L2) whereof is essentially larger than the length (L1) of the CCD cell, and which fastening element (9) extends from the housing margin (12a) located on one side of said exit surface (20a, 20b, 20c) of the color splitting prism to the other housing margin (12b) located on the opposite side thereof. Each fastening element (9) is attached to said margins by third glue joints (11).
Abstract:
A document scanner carriage (20) housing contains a pair of spaced mirrors (34,36) whose spacing and parallelism is precisely maintained by floating metal spacer plates (60,62) which are not affixed to the housing. Spaced springs (35) urge one of the mirrors (34,36) into engagement with the spacer plates (60,62), the other mirror(34,36) being referenced to the molded plastic housing (50). The parallel facing image plane sides of the mirrors (34,36) are substantially unobstructed by the spacer plates (60,62) which contact them thus allowing the scanner (10) to efficiently use a substantial proportion of the image planes of the mirrors (34,36) and occupy a comparatively small footprint. The floating spacer plates (60,62) and mirrors (34,36) are cushioned against shock and vibration by compressed elastomeric pads (80,81,82,83) on the underside of the housing cover (30) which allows the spacing and parallelism of the mirrors (34,36) to be maintained without direct affixation of the mirrors (34,36) or spacer plates (60,62) to the housing (50).
Abstract:
A scanner (10) includes a carriage unit (20) having a cover (30) with an elongated slot (26) and groove (25) for helping to define a document illumination area on a document (16) to be scanned. A flexible reflector (24) is disposed within the groove for reflecting non uniform light in a substantially uniform manner. A print screen (90) disposed on the reflector (24) controls the dispersion of light from the reflector and includes an elongated narrow reflective center portion (96) sandwiched between a pair of elongated non reflective center portions (92,94) and a pair of spaced apart reflective end portions (93,98).
Abstract:
A high speed imaging apparatus for CCD based scanners comprises a housing having separate compartments which complement modular assemblies installed therein. A decoder compartment houses components associated with locating and decoding an image. An optics compartment houses the mirrors and associated optics for reflecting the subject image onto the CCD detector. A lighting compartment includes high intensity lamps and the associated components for illuminating an object to be imaged. The lighting compartment includes a heat management system which removes the heat from the high intensity lamps and prevents heat from migrating to other compartments within the housing.
Abstract:
An imaging system with optically butted CCD sensors (26, 27a, 27b), and means for determining the spacial position of such sensors comprising a beam splitter (33) with mounting surfaces (46, 47) for the different sensors, and mounting members (62, 64, 69. 70, 71, 72) with a base surface and a supporting surface extending truly rectangularly thereon, the base surfaces being adhesively bonded to the mounting surfaces of said beam splitter and the supporting surfaces being adhesively bonded to lateral surfaces of the corresponding linear sensors.
Abstract:
A scanning head comprises a support member (2) for supporting the head in pressing contact with a platen (26). The support member has lower strength portions (A) spaced longitudinally of the head, and higher strength portions (B) alternate with the lower strength portions. The support member is easily bendable at the lower strength portions, and the higher strength portions are urged by springs (27) toward the platen. Thus, the head can come into intimate pressing contact with the platen even if the surface flatness of the support member as a whole is not strictly realized.
Abstract:
An imaging system with optically butted CCD sensors (26, 27a, 27b), and means for determining the spacial position of such sensors comprising a beam splitter (33) with mounting surfaces (46, 47) for the different sensors, and mounting members (62, 64, 69. 70, 71, 72) with a base surface and a supporting surface extending truly rectangularly thereon, the base surfaces being adhesively bonded to the mounting surfaces of said beam splitter and the supporting surfaces being adhesively bonded to lateral surfaces of the corresponding linear sensors.
Abstract:
A scanning head comprises a support member (2) for supporting the head in pressing contact with a platen (26). The support member has lower strength portions (A) spaced longitudinally of the head, and higher strength portions (B) alternate with the lower strength portions. The support member is easily bendable at the lower strength portions, and the higher strength portions are urged by springs (27) toward the platen. Thus, the head can come into intimate pressing contact with the platen even if the surface flatness of the support member as a whole is not strictly realized.