Eastman-kodak Company

Meinrad Renner

Kenneth Alan Parulski

Ulrich Mutze

Ulrich Barthold

Paul R Shelley

A device is disclosed for transferring electrical signals and electric energy to a data memory (6) of a cassette (1) for radiation-sensitive recording material (11), the memory being connectable to a signal processing unit (4) and a power source (5) of a cassette identification apparatus (2). Means are provided between cassette (1) and cassette identification apparatus (2) for radio-frequency and galvanically insulated transfer of the signals and the electric energy. Such means feature a coupling device (3) having capacitive, inductive or opto-electric coupling elements that are resistant to corrosion, soiling and wear. Furthermore, the means comprise a signal processing unit (4) having signal transmitter circuits (41, 42, 43) and signal receiver circuits (44, 45, 46) for radio-frequency signals, and a power source (5) having an energy transmitter circuit (52) and an energy receiver circuit (53) for a radio-frequency voltage. The signal processing unit (4) is provided with a microprocessor-controlled CPU (40) for producing and processing the signals, and the energy transmitter circuit (52) features an oscillator circuit (51) for producing the radio-frequency voltage, said oscillator circuit being controllable by means of the signals emitted by the CPU. The energy receiver circuit (53) comprises a signal separating circuit (54) to produce a signal for activating the memory (6).

Device for transferring electrical signals and electric energy to the

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).

Optical apparatus for maintaining a focussed image by interconnected

A scanner useful as an input device to a television or like display is operable while manually zooming and cropping the image projected onto an image sensor. A fixed image is supported on a movable, hand-manipulated stage that interactively controls the conjugate distances of the optical system so that zooming and cropping is obtained without losing focus. Since zooming the image affects the level of illumination impinging upon the sensor, an automatic brightness circuit varies the illumination according to the signal level. A manually operated altering circuit allows additional user-selected variation of the illumination level. By situating manually operated altering switches on the movable stage, a single hand can control zooming, cropping and brightness without having to interact with a keyboard or like input controls on the display.

Growing community of inventors

Esslingen, Germany

Meinrad Renner