Abstract: The light diffusing plate includes an unrecognizable structure having an optical refractive power, passing areas through which a collimated light incident from a side of the unrecognizable structure passes and a non-passing area other than the passing areas, which has relatively low light transmissivity compared with the passing areas, wherein both materials of the passing areas and non-passing area are applied simultaneously. The display apparatus includes this light diffusing plate, a liquid crystal display panel and a backlight unit. The image display apparatus includes an image display device having a matrix structure and a light diffusing plate including an unrecognizable structure which has an optical refractive power and is provided on a viewing side of a display screen of the image display device. The light diffusing plate has an excellent light diffusing efficiency, and can preferably reduce a contrast drop to be caused by a surface reflection.

Abstract: With a detector 10 with which a first electrode layer 11, a photoconductive layer for recording, 12, exhibiting conductivity when irradiated with recording light L1, a charge transporting layer 13 acting roughly as a conductor for transported charges opposite in polarity to the latent image charges, a photoconductive layer for reading, 14, exhibiting conductivity when irradiated with reading light L2, and an electrode layer 15 having a stripe electrode are stacked together, a sub-electrode 17, a number of elements 17a of which are each located just above an element 16a, being disposed so that they are opposed to each other, is provided in the vicinity of a charge storing section 19 in the photoconductive layer for recording, 12. In recording, a specified control voltage is applied to the sub-electrode 17 from a power supply 73. In reading, the current flowing out from each element 17a of the sub-electrode 17 is detected.

Abstract: Operation processing is performed on a first fluorescence image and at least either one of a second fluorescence image and a reflected reference light image to form a tissue condition image, which represents a tissue condition of living body tissues and has been compensated for a distance to the living body tissues. According to at least one of the three images, a judgment is made as to whether each image area in the tissue condition image is an abnormal light affected area or a normal light detection area. The abnormal light affected area is displayed in a form different from the normal light detection area.

Abstract: Ultrasonic imaging method and apparatus capable of displaying on a screen not only the shapes of internal organs but also the differences in properties thereof. The ultrasonic imaging method includes the steps of (a) obtaining plural kinds of image data by transmitting plural kinds of ultrasonic waves at different transmission power and receiving the plural kinds of ultrasonic waves reflected from an object to be inspected; and (b) performing arithmetic by using the plural kinds of image data obtained at step (a) to thereby figure out new image data.

Abstract: A thermal recording system for recording an image on a thermo-sensitive recording medium using a laser beam under a preheated condition of the thermo-sensitive recording medium. In the thermal recording system, a preheating device preheats the thermo-sensitive recording medium which has leuco dyes, a developer and light-absorbing dyes all provided on a support, and which develops color in a continuous tone at a density corresponding to the energy of the applied heat, to a predetermined temperature less than a color-developing temperature. A heating-beam generating device allows a laser beam to scan the thermo-sensitive recording medium so as to heat the thermo-sensitive recording medium to a predetermined color-developing temperature. Thus, the heating-beam generating device can control the laser beam in a sufficient control range, thereby making it possible to record an image on the thermo-sensitive recording medium with high accuracy.

Abstract: A heat developing method having the steps of: initially making the overall surface of a heat developing photosensitive material or a photosensitive and thermosensitive recording material (hereinafter called a “heat developing recording material” )to a predetermined temperature not lower than a glass transition temperature and not higher than heat development start temperature; and performing heat development.

Abstract: The light diffusing plate includes an unrecognizable structure having an optical refractive power, passing areas through which a collimated light incident from a side of the unrecognizable structure passes and a non-passing area other than the passing areas, which has relatively low light transmissivity compared with the passing areas, wherein both materials of the passing areas and non-passing area are applied simultaneously. The display apparatus includes this light diffusing plate, a liquid crystal display panel and a backlight unit. The image display apparatus includes an image display device having a matrix structure and a light diffusing plate including an unrecognizable structure which has an optical refractive power and is provided on a viewing side of a display screen of the image display device. The light diffusing plate has an excellent light diffusing efficiency, and can preferably reduce a contrast drop to be caused by a surface reflection.

Abstract: An image reading method and apparatus for reading an image signal by exposure to reading light L2 from a radiation solid-state detector, where radiation image information is recorded by exposure to recording light L1, suppresses degradation of image quality such as the S/N ratio of a reproduced image, the degradation being caused by an effect of charges which are produced by exposure to excessive radiation or the like and remains in the radiation solid-state detector. In the image reading method and apparatus, a past image signal read regarding past image information recorded in the radiation solid-state detector in the past, and an elapsed time from a time of recording the past image information in the radiation solid-state detector to a time of recording the current radiation image information are stored. The current image signal is then corrected based on the recorded past image information and the elapsed time.

Abstract: In a radiation image reading method for reading image signals corresponding to radiation image information from a radiation solid-state detector in which the radiation image information is recorded by irradiation of a recording electromagnetic wave, correction of an offset and a gain in the image signals, which are attributable to a dark current of the radiation solid-state detector, is performed more accurately and easily. A correction pixel region, in which a light-shielding member 6 is provided so as to be adjacent to respective read pixels, and a correcting means 25 corrects an image signal corresponding to the read pixel based on a correction region signal corresponding to the correction pixel region adjacent to the read pixel.

Abstract: Disclosed is a solid state detector which comprises a photo-conductive layer for generating charges upon irradiation of recording light and a substrate laminated to the photo-conductive layer, the substrate having a thermal expansion coefficient different from that of the photo-conductive layer. The solid state detector prevents deformation and breakdowns due to temperature changes of environments. Specifically, the solid state detector comprises a photo-conductive layer and a substrate laminated to the photo-conductive layer, the substrate having a thermal expansion coefficient smaller than that of the photo-conductive layer. In the solid state detector a deformation suppression layer, which has a thermal expansion coefficient smaller than that of the photo-conductive layer and suppresses deformation resulting from thermal expansion of the photo-conductive layer and the substrate, is laminated on a side of the photo-conductive layer opposite from the side of the substrate.

Abstract: A radiation image read-out method includes obtaining an image signal, which represents a radiation image, from a solid-state radiation detector constituted of a plurality of solid-state detecting devices for detecting radiation, which are arrayed in a matrix-like form along a main scanning direction and a sub-scanning direction and each of which corresponds to one pixel. A pixel density transforming process is performed on the image signal and in accordance with a pixel size, which is determined in accordance with a desired image size in cases where read-out processing is performed with respect to different image sizes, a read-out density of a solid-state radiation detector need not be altered, but the method can cope with narrowness of an allowable width of the number of pixels in an image reproducing apparatus or an image filing apparatus.

Abstract: An electromagnetic wave source, which produces a recording electromagnetic wave, is located on one side of an object. A two-dimensional image read-out device is located on the other side of the object. The two-dimensional image read-out device comprises a charge accumulating section for accumulating latent image charges, which carry image information. An anisotropic fluorescent material screen is located between the object and the two-dimensional image read-out device, and an operation for recording and reading out an image of an object is performed in this state. Problems with regard to deterioration of image sharpness are thus capable of being reduced.

Abstract: A radiation image read-out method comprises the steps of obtaining an image signal, which represents a radiation image, from a solid-state radiation detector constituted of a plurality of solid-state detecting devices for detecting radiation, which are arrayed in a matrix-like form along a main scanning direction and a sub-scanning direction and each of which corresponds to one pixel. A pixel density transforming process is performed on the image signal and in accordance with a pixel size, which is determined in accordance with a desired image size. In cases where read-out processing is performed with respect to different image sizes, a read-out density of a solid-state radiation detector need not be altered, but the method can cope with narrowness of an allowable width of the number of pixels in an image reproducing apparatus or an image filing apparatus.

Abstract: A heat developing method having the steps of: initially making the overall surface of a heat developing photosensitive material or a photosensitive and thermosensitive recording material (hereinafter called a “heat developing recording material”) to a predetermined temperature not lower than a glass transition temperature and not higher than heat development start temperature; and performing heat development.

Abstract: In an energetic-beam detection apparatus having a selenium detector which includes a substrate and an energetic-beam absorber being formed on the substrate and containing selenium, a temperature detecting unit detects a temperature of the selenium detector, and a temperature control unit controls the temperature of the selenium detector so that the temperature is maintained in a predetermined range when the selenium detector is in operation. Alternatively, when the temperature of the selenium detector is outside a predetermined range, an operation suppressing unit suppresses the operation of the selenium detector, or a notification unit notifies a user of the deviation of the temperature of the selenium detector from the predetermined range.

Abstract: Ultrasonic imaging method and apparatus capable of displaying on a screen not only the shapes of internal organs but also the differences in properties thereof. The ultrasonic imaging method includes the steps of (a) obtaining plural kinds of image data by transmitting plural kinds of ultrasonic waves at different transmission power and receiving the plural kinds of ultrasonic waves reflected from an object to be inspected; and (b) performing arithmetic by using the plural kinds of image data obtained at step (a) to thereby figure out new image data.

Abstract: A radiation image detecting apparatus is provided with a solid radiation sensor which detects radiation bearing image information and outputs an electric image signal bearing the image information and an image output section which prints out a visible image on the basis of the image signal output from the solid radiation sensor. The solid radiation sensor and the image output section are housed in a single casing.

Abstract: Operation processing is performed on a first fluorescence image and at least either one of a second fluorescence image and a reflected reference light image to form a tissue condition image, which represents a tissue condition of living body tissues and has been compensated for a distance to the living body tissues. According to at least one of the three images, a judgment is made as to whether each image area in the tissue condition image is an abnormal light affected area or a normal light detection area. The abnormal light affected area is displayed in a form different from the normal light detection area.

Abstract: An image data computing apparatus for computing three-dimensional image data on the basis of detection data obtained by employing a two-dimensional sensor array including a plurality of ultrasonic sensors. The apparatus includes a line memory for storing the detection data obtained on the basis of output signals of the plurality of sensors, a storage unit for storing as a table therein transfer time period data determined by the relations between distances from a transmission unit to the respective sensors through respective points to be measured and transfer velocities of the ultrasonic wave in the corresponding paths, and a computation unit for reading the detection data stored in the line memory in accordance with the transfer time period data and computing image data at the respective points to be measured on the basis of the read detection data.

Abstract: In a radiation image data obtaining method and a radiation image data obtaining apparatus, quality degradation at the periphery of an image is prevented after subtraction processing. Radiation emitted from a radiation source and having passed through a subject is irradiated onto a detector. An image signal in accordance with the intensity of the radiation is output from a detection layer at the front. Meanwhile, a portion of the radiation which has not been converted into visible light by a scintillator out of the radiation irradiated onto the detection layer passes through the detection layer and reaches another detection layer at the rear. An image signal is output from the layer at the rear. The image signal from the rear is input to size correction means and a size correction operation is carried out in the means so that the sizes of images represented by the image signal from the front and an image signal after the correction agree.