Image detection and readout apparatus having multiple readout regions
View Patent ↗An image detection and readout apparatus constituted by a solid state detector constructed to generate electrical currents according to the electrostatic latent image when scanned by readout light, a surface light source for scanning the solid state radiation detector by the readout light, and a light source control means for controlling the surface light source. The stripe electrode of the solid state detector is divided into two sections at the center in the length direction of the elements of the stripe electrode to form two readout regions in order to reduce the capacitance component between the adjacent elements, as well as the resistance component of the elements. In addition, the light source control means is configured to control the surface light source to cause the scanning to be performed by the surface light source in parallel simultaneously for the readout regions.
1. An image detection and readout apparatus, comprising:
a solid state detector constructed to record an image as an electrostatic latent image, and to generate electrical currents according to the electrostatic latent image when scanned by readout light;
current detecting means for detecting the electrical currents generated by the solid state detector;
a surface light source constituted by multitudes of linear light sources arranged in parallel, each for emitting readout light; and
a light source control means configured to sequentially switch and drive the linear light sources to cause the scanning to be performed by the linear light sources, wherein:
the solid state detector includes a stripe electrode constituted by multitudes of linear electrodes arranged in parallel for outputting electrical currents according to the electrostatic latent image;
the linear light sources are arranged to extend in the direction orthogonal to the length direction of the linear electrodes;
the stripe electrode is divided into a plurality of sections in the length direction of the linear electrodes to form a plurality of readout regions;
different readout regions of the plurality of readout regions are connected to different groups of the current detecting means; and
the light source control means is configured to control the linear light sources to cause the scanning to be performed by the linear light sources in parallel simultaneously for the plurality of readout regions of the stripe electrode.
2. The image detection and readout apparatus according to claim 1 , wherein the stripe electrode is divided into two sections in the length direction of the linear electrodes to form two readout regions.
3. The image detection and readout apparatus according to claim 1 , wherein the light sources are divided into groups, each group performing the scanning for a corresponding readout region of the plurality of readout regions.
4. The image detection and readout apparatus according to claim 1 , wherein a number of the groups is equal to a number of the plurality of readout regions.
5. The image detection and readout apparatus according to claim 1 , wherein the scanning to be performed is for reading out data from the plurality of readout regions of the stripe electrode.