Palodex Group Oy

Planar International Oy Ltd.

Jorma Honkala

Kaapo Paulanto

Jari Taskinen

Mika Anttila

Timo Klemola

Petri Hyypiä

Ari Hannu Tapio Koskikallio

Doan Ha Nguyen

A photomultiplier tube for use in an imaging plate scanner. In one embodiment, the photomultiplier tube includes a housing having a window; a focusing electrode located in the housing; an electron multiplier dynode located in the housing; an anode; a cathode and a memory storing parameters. Another embodiment provides An imaging plate scanner including a photomultiplier tube having a window, an anode, and a cathode; a light source positioned to radiate light on the anode or cathode; and an electronic processor communicatively coupled to the light source and configured to generate a supply voltage value for the photomultiplier tube, activate the light source and determine an output current of the anode or of the cathode, and generate an error message if the output current deviates from an expected current range. A power supply is electrically connected to the electronic processor and configured to generate the supply voltage.

Reducing calibration of components in an imaging plate scanner

The invention relates to an image plate template for keeping at least one image plate used in medical imaging in order with relation to an imaging object. The template comprising at least receiving means for receiving the at least one image plate and displaying means for displaying information in order to associate a patient with the at least one image plate. The template may also comprise communication means for communicating information from said image plate to an external device for displaying information in order to associate a patient with the at least one image plate.

Image plate template for keeping at least one image plate used in medical imaging in order with relation to an imaging object

The present invention relates to a method and apparatus for driving an AC-excited thin-film electroluminescent display based on a display matrix of rows and columns, in which method each row of the display matrix is alternately driven by positive (Vwrp) and negative (Vwrn) row drive pulses in which the magnitudes of successive pulses are different, each column of the display matrix is driven individually by modulation voltage pulses synchronized to the row addressing sequence, said pulses having a maximum amplitude (Vm) and an 'ON'-state polarity equal to that of the larger-magnitude row drive pulse. According to the invention in a limit-load situation the maximum amplitude of the modulation voltage (Vm) is allowed to drop, the amplitude of the smaller-magnitude row drive pulse (Vwrn) is feedback controlled from the modulation voltage (Vm) so that a drop in the maximum amplitude of the modulation voltage (Vm) is compensated by an increase of the magnitude of the smaller-amplitude row drive voltage (Vwrn), said increase being essentially equal to the drop in the modulation voltage (Vm), and the higher-amplitude row drive voltage (Vwrp) is maintained essentially constant. The circuit configuration according to the invention provides an essential reduction in the power consumption of the display.

Method and apparatus for reducing power consumption in an AC-excited

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Kauniainen, Finland

Jorma Honkala