Abstract: Compositions and methods for electrographic image development, wherein the image development process employs a two-component developer that includes toner particles having a radius RT and magnetic carrier particles having a radius RC, wherein RC is preferably less than about 5RT and is more preferably less than or equal to about 3RT.

Abstract: Apparatus and methods for electrographic image development, wherein the image development process is optimized by setting the average developer bulk flow velocity with reference to the imaging member velocity, for example, where the average developer bulk velocity is about the same as the imaging member velocity, or within preferred ranges, such as between about 40% to about 130% of the imaging member velocity.

Abstract: Compositions and methods for electrographic image development, wherein the image development process employs a two-component developer that includes toner particles having a radius RT and magnetic carrier particles having a radius RC, wherein RC is preferably less than about 5RT and is more preferably less than or equal to about 3RT.

Abstract: Apparatus and methods for electrographic image development, wherein the image development process is optimized by setting the developer mass flow velocity with reference to the imaging member velocity, for example, where the developer mass velocity is about the same as the imaging member velocity, or within preferred ranges, such as between about 40% to about 130% of the imaging member velocity.

Abstract: An electronic camera comprises a lens for imaging an object on an image plane. At least one object area is selected, and a microcomputer calculates the displacement parameters needed to achieve sharp focusing of the selected object area. An image sensor is provided in the image plane of the camera which is moveable in five degrees of freedom. A positioning structure automatically moves the image sensor in response to displacement parameters calculated by the microcomputer so that a sharply focused image of the selected object area is obtained in the image plane.

Abstract: Process and system for producing color images and/or multispectral images in which an optical arrangement (3) images a scene on a CCD image sensor (2), said sensor being covered by a mosaic filter with a periodically repeating basic pattern (GM). A following analog/digital converter (5) produces digital signals from all pixels p.sub.ij of the CCD image sensor (2). The basic pattern (GM) consists of a minimum of five different filter elements. In addition, an image memory (6) is provided which is divided into image memory levels (B.sub.0, B.sub.1, . . . , B.sub.nF). The process comprises the follow steps:storing of values (wert?i!?j!?0!) of each individual pixel (p.sub.ij) of the CCD image sensor (2) in a dedicated level B.sub.

Abstract: In a device for converting into video signals the light signals from desired sections of a flat object such as a slide or a photographic print using a CCD-sensor (32), an optical system is provided which includes a lens unit (35) with a constant focal length. The optical system comprises at least two elements which are adjustable along the optical axis (30) and whose positions determine the image and the object distances for the imaging of the section of the object on the CCD-sensor (32). The two adjustable elements are connected by a gear mechanism (24) such that when the image and object distances are adjusted by the gear mechanism the lens unit (35) images the section of the object sharply on the CCD-sensor (32).

Abstract: An electronic camera comprises an illumination unit (30) for line-by-line imaging of large-size documents (50) or the like on an elongate solid-state image sensor, in particular a CCD line sensor (22). The illumination unit is provided with optical elements for producing a light strip (37) on the document (50). The illumination unit (30) is arranged within the camera housing (10) for pivotal movement in the direction of the arrows "A" or "B". The CCD line sensor (22) is movable, in response to the pivotal movement of the illumination unit (30), in the vertical direction within the image plane of the camera lens (42) in the direction of the arrows "A" or "B" so that the light strip (37) guided across the document (50) can be imaged on the CCD line sensor (22).