摘要:
An image reconstructing apparatus wherein the object under examination is irradiated in at least one direction to provide projection data, and the provided projection data is optically processed to form a reconstructed image representing the internal information of the object. An image associated with the projection data is formed and stored in the storage medium. The stored image is optically read out of the storage medium. The read out stored image which corresponds to one direction of irradiation is integrated at a time to produce sum data. The sum data and projection data corresponding to the same direction of irradiation are compared to form correction data. An image associated with the correction data is formed and optically superposed on the stored image in the storage medium corresponding to the same direction of irradiation, to produce the reconstructed image.
摘要:
A streak tube device for electrically slitting the image of an object provided by an optical system. The streak tube device includes a streak tube body having a photoelectric conversion device for receiving the object image and producing a corresponding electron image. The streak tube device further includes focusing apparatus for focusing the electron image, electrical slitting apparatus for transmitting a selected portion, that is, slit images of the electron image, apparatus for controlling the electrical slitting apparatus, and focusing apparatus for focusing slit images on a fluorescent surface included within the streak tube body. The electrical slitting apparatus of the streak tube device includes a slit member having a slit which extends across the streak tube body, shift electrodes for vertically shifting the transmitted electron image, and a circular collimator for collimating the shifted electron image and transmitting the collimated electron image through the slit to form a slit image.
摘要:
A spatial light modulation device includes a spatial light modulation tube and converts a one-dimensional photoelectron image into a two-dimensional electron image, rotating the two-dimensional electron image, subjecting the rotated two-dimensional electron image and a previously stored electron image to addition or subtraction, and stores the electron image thus processed. An image reconstructing apparatus includes: projection means for detecting as projection data a projection of internal information of an object; the spatial light modulation device which produces and stores a corrected reconstructed image on the basis of a one-dimensional correction data image and a previously stored reconstructed image; optical reading means for reading out the reconstructed image form the spatial light modulation device; summing means for integrating parts of the readout reconstructed image to produce sum data; and comparison and correction means for subjecting the projection data and the sum data to comparison to form the one-dimensional correction data image.
摘要:
A microphase-separated structure comprising a block copolymer, which contains at least a block chain A consisting of a monomer A as a repeating unit and a block chain B consisting of a monomer B as a repeating unit, and a solvent, wherein the solvent has a temperature zone 1 where the block chain A and the block chain B are soluble and a temperature zone 2 where the block chain A is insoluble but the block chain B is soluble, and a structural period thereof varies by changing temperature between the temperature zone 1 and the temperature zone 2.
摘要:
[Project] To provide a microphase-separated structure which comprises a vast and visible structure showing a structural color with the use of the phase separation due to the self-assembly of a block copolymer, enables the design of a definite structural color by a convenient method and shows temperature response.[Means for Solving Problems] A microphase-separated structure comprising a block copolymer, which contains at least a block chain A consisting of a monomer A as a repeating unit and a block chain B consisting of a monomer B as a repeating unit, and a solvent, wherein the solvent has a temperature zone 1 where the block chain A and the block chain B are soluble and a temperature zone 2 where the block chain A is insoluble but the block chain B is soluble, and a structural period thereof varies by changing temperature between the temperature zone 1 and the temperature zone 2.
摘要:
In a color-center light source, a color center is formed artificially. A predetermined single atom is removed from the surface of a defect-free ionic crystal so as to form a lattice defect. Optical transition of the defect is utilized so that it functions as a light source.
摘要:
A fiber coupling device comprises fixing parts 1V, to which the respective ends of two optical fibers 5 and 6 are fixed, photonic crystal 2, disposed inside the light path of light that propagates across the abovementioned ends, and external force application means 3, which applies an external force to photonic crystal 2. When an external force is applied by external force application means 3 to photonic crystal 2 while light is being propagated inside one optical fiber 5, the photonic band gap of photonic crystal 2 changes and light of a wavelength that is in accordance with this photonic band gap is output from the other optical fiber 5.
摘要:
An apparatus for measuring the temporal correlation of fundamental particles such as photons, neutrons, X-rays or the like, comprising at least one deflector for sweeping the fundamental particles or images thereof in at least one direction, an aperture member having at least two apertures for time-divisionally extracting the swept fundamental particles or the images thereof, multiplication means, such as dynode groups or photomultipliers, for multiplying each of the extracted fundamental particles or the images thereof and a correlator for performing correlating arithmetic operations on the basis of each output signal from the multiplication means.
摘要:
A high spatial and time resolution measuring apparatus for optically measuring a fine area in an object to be measured, the apparatus comprising a stage for mounting a specimen thereon, a light source for generating a first light, a first optical system for leading the first light from the light source to the specimen, an objective lens for magnifying an image of a second light from the specimen, a second optical system for imaging a part of the image in a form of a slit, a streak tube having a photocathode at a position of image formation of the second optical system for receiving the part of the image and forming a streak image thereof, a housing for shielding the first optical system, the objective lens and the second optical system from stray light.
摘要:
In an object movement measuring apparatus, a movement monitor detects the movement of an object under measurement to output a signal in synchronization with the movement, and the signal thus outputted is utilized to trigger the streak camera, so that the motion of an object moving at high-speed can be detected as a streak image.