Abstract: An image forming apparatus includes an image forming unit configured to convey a recording medium and form an image on the recording medium based on an image forming condition; and a controller configured to control the image forming unit to form a test image and a scale image extending in a conveyance direction in which the recording medium is conveyed, obtain user instruction information related to a density fluctuation of the test image in the conveyance direction, and generate the image forming condition to suppress image density unevenness in the conveyance direction in an image to be formed by the image forming unit based on the user instruction information.

Abstract: An image forming apparatus includes an image forming unit configured to form an image on a rotating photosensitive member to transfer the image on a recording medium, and a controller configured to control the image forming unit to form a test image and a scale correlated with a phase of the photosensitive member on a recording medium, acquire information related to a determination result, which is determined by a user based on the scale, of correspondence relationship between an uneven density of the test image and the phase of the photosensitive member, and control an uneven density in a rotating direction of the photosensitive member which occurs in the image formed by the image forming unit based on the information.

Abstract: An image forming apparatus comprising: an image forming unit configured to convey a recording medium, and form an image on the recording medium based on an image forming condition; and a controller configured to control the image forming unit to form a test image and a scale image extending a conveyance direction in which the recording medium is conveyed, obtain user instruction information related to a density fluctuation of the test image in the conveyance direction, and to generate the image forming condition to suppresses image density unevenness in the conveyance direction to an image to be formed by the image forming unit based on the user instruction information.

Abstract: An X-ray imaging apparatus includes: a plurality of gratings; a detector which detects X-rays that have been emitted from an X-ray generator and have been transmitted through the plurality of gratings; a first support member which supports the plurality of gratings and the detector; a second support member which supports the X-ray generator and the first support member; and a first vibration-proof member which is disposed between the first support member and the second support member. A natural frequency of the first vibration-proof member in respect of at least vibration in a direction perpendicular to the optical axis of the X-rays is lower than 2?1/2 times the frequency of vibration generated by the X-ray generator.

Abstract: In a Talbot interferometer including a diffractive grating which forms a first intensity distribution, a shield grating which forms a second intensity distribution, a detector which acquires information on the intensity distributions, and a moving unit which moves the first intensity distribution or the shield grating, fringe scanning in the x-axis and y-axis directions is performed in response to a change in relative positions of the first intensity distribution and the shield grating in the respective directions, and the detection before or after a change in the relative positions in the respective directions. The number of movements of the first intensity distribution or the shield grating with the fringe scanning in the directions is lower than Dx×(Dy+1)?2, where Dx and Dy are the numbers of detections with the fringe scanning in the respective directions and are integers equal to or higher than 3.

Abstract: The present invention relates to an X-ray imaging apparatus including an X-ray source, a grating that divides diverging X-rays irradiated from the X-ray source, and a detector that detects X-rays which are divided by the grating and pass through a sample. The grating includes a plurality of transparent objects which pass the diverging X-rays and a plurality of opaque objects that shield the diverging X-rays. A focused position at which a plurality of extended lines intersect each other and the X-ray source are arranged in different position. The extended lines are formed by extending center lines which connect a center of the X-ray source side of each of the plurality of opaque objects facing the X-ray source with a center of the detector side of each of the plurality of opaque objects facing the detector.

Abstract: An X-ray Talbot interferometer includes a first grating configured to diffract X-rays from an X-ray source and form an interference pattern, a second grating configured to block a portion of X-rays that form the interference pattern, and a detector configured to detect X-rays from the second grating. An inspection object is disposed between the X-ray source and the second grating. The second grating includes a first shield grating portion in which a shield portion and a transmissive portion are arranged periodically at a first period and a second shield grating portion. The first period is expressed as ps×n×Ls/(Ls+Lf), where ps denotes a size of pixels that the detector has, n denotes a positive integer, Ls denotes a distance from the X-ray source to the first shield grating portion, and Lf denotes a distance from the first shield grating portion to the detector.

Abstract: An X-ray imaging apparatus comprises a grating configured to form an interference pattern by diffracting X-rays from an X-ray source, a amplitude grating configured to partly shield X-rays forming the interference pattern, and an X-ray detector configured to detect an intensity distribution of X-rays from the amplitude grating. The amplitude grating is comprised of a central area and a peripheral area and the peripheral area shows an X-ray transmittance higher than the central area relative to X-rays perpendicularly entering the amplitude grating.

Abstract: An X-ray imaging apparatus comprises a grating configured to form an interference pattern by diffracting X-rays from an X-ray source, a amplitude grating configured to partly shield X-rays forming the interference pattern, and an X-ray detector configured to detect an intensity distribution of X-rays from the amplitude grating. The amplitude grating is comprised of a central area and a peripheral area and the peripheral area shows an X-ray transmittance higher than the central area relative to X-rays perpendicularly entering the amplitude grating.

Abstract: A specimen information acquisition system is provided with a first grating which divides divergent X-rays from an X-ray source to form a plurality of primary X-ray beams, and a second grating which blocks at least a part of each of the primary X-ray beams to form a plurality of secondary X-ray beams. The specimen information acquisition system is further provided with an X-ray detector which detects the secondary X-ray beams and a calculator which calculates information of a specimen arranged between the X-ray source and the X-ray detector. The primary X-ray beams do not overlap each other on each of X-ray transmitting portions of the second grating. The edges of the respective primary X-ray beams enter a plurality of X-ray blocking portions of the second grating.

Abstract: An X-ray Talbot interferometer includes a first grating configured to diffract X-rays from an X-ray source and form an interference pattern, a second grating configured to block a portion of X-rays that form the interference pattern, and a detector configured to detect X-rays from the second grating. An inspection object is disposed between the X-ray source and the second grating. The second grating includes a first shield grating portion in which a shield portion and a transmissive portion are arranged periodically at a first period and a second shield grating portion. The first period is expressed as ps×n×Ls/(Ls+Lf), where ps denotes a size of pixels that the detector has, n denotes a positive integer, Ls denotes a distance from the X-ray source to the first shield grating portion, and Lf denotes a distance from the first shield grating portion to the detector.

Abstract: An X-ray imaging apparatus includes an optical device configured to form a periodic pattern using X-rays radiated from an X-ray source, an alignment mark of the optical device, a first detector, a second detector, and a movement unit configured to change at least either a position of the optical device or an angle of the optical device on the basis of a result of detection performed by the second detector. The first detector detects X-rays that have passed through the optical device and a subject, and the second detector detects X-rays that have passed through the alignment mark. The movement unit includes a movement instruction section that instructs the optical device to move on the basis of the result of the detection performed by the second detector and movement sections that move the optical device on the basis of the instruction issued by the movement instruction section.

Abstract: A specimen information acquisition system is provided with a first grating which divides divergent X-rays from an X-ray source to form a plurality of primary X-ray beams, and a second grating which blocks at least a part of each of the primary X-ray beams to form a plurality of secondary X-ray beams. The specimen information acquisition system is further provided with an X-ray detector which detects the secondary X-ray beams and a calculator which calculates information of a specimen arranged between the X-ray source and the X-ray detector. The primary X-ray beams do not overlap each other on each of X-ray transmitting portions of the second grating. The edges of the respective primary X-ray beams enter a plurality of X-ray blocking portions of the second grating.

Abstract: The present invention relates to an X-ray imaging apparatus including an X-ray source, a grating that divides diverging X-rays irradiated from the X-ray source, and a detector that detects X-rays which are divided by the grating and pass through a sample. The grating includes a plurality of transparent objects which pass the diverging X-rays and a plurality of opaque objects that shield the diverging X-rays. A focused position at which a plurality of extended lines intersect each other and the X-ray source are arranged in different position. The extended lines are formed by extending center lines which connect a center of the X-ray source side of each of the plurality of opaque objects facing the X-ray source with a center of the detector side of each of the plurality of opaque objects facing the detector.

Abstract: An X-ray imaging apparatus comprises a grating configured to form an interference pattern by diffracting X-rays from an X-ray source, a amplitude grating configured to partly shield X-rays forming the interference pattern, and an X-ray detector configured to detect an intensity distribution of X-rays from the amplitude grating. The amplitude grating is comprised of a central area and a peripheral area and the peripheral area shows an X-ray transmittance higher than the central area relative to X-rays perpendicularly entering the amplitude grating.

Abstract: An antenna (6) for sensing a portion of electromagnetic waves irradiated into a heating chamber by a wave irradiator (3) and a detection circuit for performing detection of electric power from the output of the antenna are provided on the same printed board (11), while operation of devices is controlled by a controller (8) on the basis of an output of the detection circuit such that an optimum finished state of cooking is obtained.

Abstract: A high frequency heating apparatus and an electromagnetic wave detector for use in the high frequency heating apparatus, are so arranged to estimate the cooking or thawing state of a food article placed in a heating chamber through detection of microwaves within the heating chamber. By devising a position of an antenna and a method of processing signals of the microwaves as detected, stably and reliable microwave detection becomes possible.

Abstract: A heating apparatus such as a microwave oven in which thermal energy of high-temperature vapor generated by heating an object is detected by a pyroelectric element and a resulting detection signal is used to control (stop) a heat source such as a microwave source, etc. Among AC voltages generated by the pyroelectric element due to heat exchange of the pyroelectric element, a voltage of a polarity generated at the time of heat discharge (temperature decrease) of the pyroelectric element is selected through a circuit means. A voltage generated by heat exchange between air moving slowly in a heating chamber and the pyroelectric element caused by the rotation of a turntable or the like is eliminated by another circuit means. A control section controls the operation of the heat source by deciding an output signal of the pyroelectric element by comparing it with a detection level determined in accordance with a noise level for a predetermined length of time after the start of the heating operation.

Abstract: A heating and cooking apparatus has a detection sensor for sensing the state of heating so as to automatically control the heating operation. A partition is disposed so as to be opened to the inside of an auxiliary passage which has an inlet located at a position in the vicinity of the circumference of an impeller of a cooling fan for cooling a magnetron provided on the back side of a heating chamber and through which steam from the heating chamber is discharged to the outside. Air supplied by the fan is blown off into the auxiliary passage so as to generate a venturi action, thus promoting the flow of steam in the auxiliary passage. The detection sensor is disposed in the auxiliary passage at a position in the vicinity of a region where air is blown off so as to accurately sense the state of steam generated from a material to be heated.

Abstract: A pyroelectric sensing apparatus is provided with an A/D convertor 29, whose digital output is examined whether continuation time period of the output from the pyroelectric element is longer than a predetermined reference time period such as 500 m sec; thereby mal-operation due to noise output from the pyroelectric element generated by mechanical shock (door close) or electric shock (pulling out a plug of other apparatus) is eliminated.