Agfa-gevaert Ag

Agfa-gevaert Healthcare Gmbh

Agfa-fevaert Aktiengesellschaft

Herbert Gebele

Robert Fasbender

Juergen Mueller

Hans Schaller

Jurgen Muller

Manfred Schmidt

Ralph Thoma

Thomas Zehetmaier

Luc H Leenders

Paul Leblans

Ivan Hoogmartens

Leo Oelbrandt

Werner Stahl

Hans Louis Strijckers

Georg Reiser

Franz Kappeler

Friedrich Stumpf

Wolfram Betzold

Martin Lind

J&uuml;rgen M&uuml;ller

Michael Weinberger

Jürgen Müller

A device and a method for reading out information stored in a storage layer (), and an X-ray cassette are proposed which make use for the purpose of erasing information stored in the storage layer () of an erasing means () which generates an erasure radiation (). This erasure radiation () can have both a first and a second intensity, the first intensity being larger than the second intensity.

Device and method for reading out information stored in a storage layer, and x-ray cartridge

The invention relates to a method of reading out information items stored in a phosphor layer, in which the phosphor layer is excited to emit emission light and the emission light is sensed by a detector and the detector is moved relative to the phosphor layer. During this process, the detector consecutively senses the emission light emitted in each case by individual regions of the phosphor layer. To reduce the dark noise and the movement blur, provision is made that the detector senses the emission light emitted by a region during an integration time that is less than a forward-travel time for the movement of the detector by the width of the region in the forward-travel direction (V).

Method of reading out information items stored in a phosphor layer

The invention relates to a storage layer () for storing x-ray information, comprising a large number of needle-shaped storage material areas (A toL) for guiding light radiation (toto). An absorption zone (A toN), which contains absorption material for absorbing light radiation (toto) lies between the individual needle-shaped storage material areas (A toL) and absorbs less than all of the light radiation that it receives. The invention also relates to a device for reading x-ray information from a storage layer of this type and to an x-ray cassette which has a device of this type for reading x-ray information.

Storage layer, conversion layer and a device for reading x-ray information, in addition to an x-ray cassette

An apparatus for reading information stored in a memory phosphor has a detecting device with an array of radiation-sensitive surface segments which during a pre-settable integration time interval receive a secondary radiation emitted by the memory phosphor. The apparatus includes a controller device that sets the integration time interval dependent on an amount of secondary radiation that was received at a preceding time. The controller device can also connect the radiation-sensitive surface segments into groups whose size depends on the amount of secondary radiation that was received at a preceding time.

Apparatus and method for scanning information stored in a memory phosphor

An X-Ray cassette ( ) and a device ( ) for reading information stored in a memory layer ( ) are disclosed. This device ( ) contains a radiation source ( ) to excite a row ( ) of the memory layer ( ). The row ( ) emits an emission radiation ( ) because of this excitation. The device ( ) based on the invention contains a receptor ( ) to receive the emission radiation ( ). The receptor ( ) includes a number of light-sensitive surfaces ( ) that are arranged in adjacent rows. According to the invention, the dimension of the light-sensitive surfaces ( ) of the receptor ( ) arranged perpendicular to the orientation (A) of the rows ( ) is greater than that oriented along the row direction (B). Alternatively or additionally, the device can include an optical projector ( ) by means of which the emission radiation ( ) is projected onto the receptor ( ). The numerical aperture of the optical projector ( ) with respect to the excited row ( ) arranged perpendicular to the orientation (A) of the rows ( ) is larger than along direction (B).

Apparatus for reading information stored in a memory layer and an X-ray cassette for use with the apparatus

Apparatus for reading information stored in a memory layer ( ) which includes a shielding device ( ), and an X-ray cassette and an X-ray table for use with the apparatus, are disclosed. The shielding device ( ) serves to shield a reader device ( ) from an information recording beam ( ). The reader device ( ) includes a receptor ( ) to receive emission radiation ( ) that contains an image of the information recorded in the memory layer ( ). Instead of the shielding device ( ), it is also possible to provide a converter ( ) that serves to convert an information-recording beam ( ) into converted radiation ( ) that possesses less energy than the information recording beam ( ).

Apparatus for reading information recorded in a memory layer and an X-ray cassette and X-ray table for use with the apparatus

The invention relates to a device ( ) for reading out information stored in a phosphor carrier ( ) and to an X-ray cassette ( ) which contains the phosphor carrier ( ) and such a device. The inventive device ( ) has a radiation source ( ) that can emit a first radiation source ( ) with which the phosphor carrier ( ) can be exited such that the carrier emits a second radiation ( ). This second radiation ( ) comprises an image of the information stored in the phosphor carrier ( ). The device ( ) additionally has a receiving means ( ) which contains a number of point elements (PD , . . . PDn) in order to receive the second radiation ( ) emitted from the phosphor carrier ( ) in a point-by-point manner. The second radiation of a point of the phosphor carrier ( ) can thus be received by each one of the point elements (PD , . . . ,PDn).

Device for reading out information stored in a phosphor-carrier, and an x-ray cassette

A device ( ) and a method for reading information stored in a phosphor layer ( ) is disclosed. The device ( ) includes a transparent carrier material ( ) on which the phosphor layer ( ) to be read is disposed. A radiation source ( ) emits an excitation radiation ( ) to excite the phosphor layer ( ), which in turn emits an emission radiation ( ). The emission radiation ( ) can be received by a receiver ( ). The radiation source ( ) is arranged on one side of the transparent carrier material ( ), whereas the receiver ( ) is arranged on the other side of the transparent carrier material ( ), thereby defining an optical path between the radiation source ( ) and the receiver ( ). According to the invention, a reflective layer ( ) for reflecting at least a portion of the excitation radiation ( ) is arranged in the optical path.

Device and method for reading information stored in a phosphor layer

The invention relates to a device (,) for writing on thermographic material (,). The inventive device (1) comprises a heater (,) with which the thermographic material (,) is preheated to a temperature, which is lower than a writing temperature. The thermographic material (,) can be written on with a writing instrument (,) which is distanced from the thermographic material (,) after input of an information signal (s(t)). The writing instrument (,) has a plurality of individually controllable point sources (,). The thermographic material (,) can be written on in a point-by-point manner with said point sources (,).

Device for writing on thermographic material

An X-ray film cassette has on its top a triangular bar code field readable by a bar code reader of an automatic film sheet charging and discharging apparatus. The bar code field is in the form of an isosceles right triangle whose hypothenuse faces a reference corner and whose legs extend parallel to edges of the cassettes. The bars of the code extend parallel to the hypothenuse. An optical axis of the bar code reader, when the cassette is in its end position in the apparatus, intersects a vertex area formed by the legs of the triangle. This arrangement guarantees that its bar codes on cassettes of small format, even if misaligned in the feeding direction, are reliably read by the reader.

System for automatically charging and discharging X-ray film sheets into

An apparatus for automatic charging and discharging an X-ray film sheet into a cassette includes a bar code reader having an illumination device and a rotary scanning mirror. The cassette is provided on its top with a bar code label which irrespective of the format of the cassette is always located at a fixed distance from a leading edge and from a lateral guiding edge of the cassette. The cassette is insertable into an intake compartment and only after the cassette reaches an end position in the compartment a limit switch activates the scanning mirror and the illumination device of the reader, thus eliminating reading errors when reading bar codes on cassettes of different formats.

Growing community of inventors

Sauerlach, Germany

Herbert Gebele