摘要:
A laser beam of a constant intensity is generated by a semiconductor laser and applied to a thermosensitive recording medium. The density of a colored recorded area of the thermosensitive recording medium is detected by a densitometer, and shading correcting data for making the density of the colored recorded area constant based on the detected density are stored in a shading data memory. A controller reads the stored shading correcting data and controls the intensity of the laser beam generated by the semiconductor laser based on the shading correcting data for thereby compensating for variations in the level of an image signal due, for example, to intensity irregularities of the laser beam applied to the thermosensitive recording medium and irregularities of the speed at which the thermosensitive recording medium is scanned with the laser beam.
摘要:
An X-ray analysis apparatus including an artificial multi-layered grating for rendering X-ray beams to be monochromatic before they are incident on a specimen to be analyzed. This artificial multi-layered grating operates to diffract the X-ray beam, generated from an X-ray radiation source and subsequently impinging on a reflective surface of the artificial multi-layered grating, at a predetermined angle of diffraction to provide the monochromatic X-ray beams. The periodicity of the spacing of lattice planes of the artificial multi-layered grating is so chosen as to be of a value progressively varying along the reflective surface thereof with an increase in distance from the X-ray radiation source. The X-ray analysis apparatus herein disclosed is designed to avoid any possible reduction of the intensity of the X-ray beams which would occur when they are rendered to be monochromatic, and to increase the intensity of the X-ray beams to ensure an improved accuracy in spectroscopic analysis.
摘要:
A semiconductor laser operating circuit comprises a signal limiting circuit which receives a beam intensity instructing signal, and limits values of the beam intensity instructing signal, which are larger than a predetermined value, to the predetermined value. A high-pass filter extracts high frequency components from the output of the signal limiting circuit. A monitor circuit detects the intensity of a laser beam produced by a semiconductor laser, and generates a signal representing the detected intensity. An adding and subtracting circuit adds the value of the output of the high-pass filter to the value of the beam intensity instructing signal, and calculates the difference between the value obtained from the addition and the value of the signal representing the detected intensity, which signal has been generated by the monitor circuit. The semiconductor laser is controlled by the output of the adding and subtracting circuit.
摘要:
A sheet film package includes a tray for storing a stack of sheet films and a flexible cover member peelably attached to the tray in covering relation to a film access opening for shielding the sheet films in the tray from extraneous light. The cover member is folded back on itself at one end of the tray and has an end portion which extends over the other end of the tray and which will be exposed from a loading device when the sheet film package is loaded in the loading device. The sheet film package may have a cushioning member disposed in the tray and composed of hollow air bags of a flexible material for pressing the holding the sheet films in the package member. A film loading device for loading the sheet film package therein include a light-shielding member for preventing extraneous light from entering a loading slot. The loading slot is closed by a pivotally mounted cover with the end portion of the cover member being led out of the loading slot. The light-shielding member may comprise a roller for pressing the cover member against an engaging portion of the sheet film package or the cover, or may comprise light-shielding blocks mounted on the cover and a frame of the device, respectively, for gripping the cover member therebetween.
摘要:
An omnidirectional toy vehicle has: a plurality of bearing members rotatively mounted on a chassis, each bearing member bearing an associated drive wheel and having a hollow portion at the center thereof along the whole length thereof; a steering mechanism including a stepping mechanism constructed of Geneva gears and a ratchet mechanism and being coupled to the bearing members in unison; and a drive mechanism including a power transmission mechanism for driving the drive wheels through the hollow portions of the plurality of bearing members. The outer, opposite sides of each wheel may be colored differently to indicate the direction of movement of the vehicle.
摘要:
Inorganic adhesives suitable for bonding metals to metals, metals to ceramics, or ceramics to ceramics with high bonding strength are disclosed, which contain a composite mechanical alloy powder comprising:(a) from about 10 to 60 wt % of particles of at least one of Cu and Ni;(b) from about 10 to 80 wt % of particles of at least one of Ti, Nb, and Zr; and(c) from about 10 to 80 wt % of Ag particles.The composite powder can be dispersed in an organic solvent to form a paste adhesive.
摘要:
The present invention has been made in consideration of the above-described situation, and provides a method of producing a circuit board that can bond a component to be mounted without slanting the component, and simplify the steps. The method of producing a circuit board includes forming a first adhesive layer by applying a first adhesiveness-imparting compound on the surface of terminal portions of a circuit board; attaching a core body on the first adhesive layer of the terminal portions; forming a second adhesive layer by applying a second adhesiveness-imparting compound on the surface of the core body; attaching first solder particles on the second adhesive layer of the surface of the core body; and forming a solder layer on the surface of the core body by melting the first solder particles.
摘要:
A method for the attachment of solder powder includes the steps of treating an exposed metallic surface of an electronic circuit board with a tackifier compound, thereby imparting tackiness thereto to form a tackified part, attaching solder powder by a dry or wet process to the tackified part, and then removing excessively adhering solder powder in a liquid that is water, deoxidized water or deoxidized water added with an antirust.
摘要:
A display device displays corrected externally-supplied video signals, and includes plural pixels, a scanning driver and a signal driver which applies display voltages to signal lines coupled to the pixels. The signal driver includes a first converter which converts a format of the externally supplied video signals into a first format, a memory which stores the video signals from the first converter temporarily, a correction circuit which computes correction values based upon the video signals from the first converter and the video signals in the memory and corrects the video signals from the first converter based upon the correction values, and a second converter which converts the first format of the video signals from the correction circuit to a format of the display voltages. The memory stores the correction values also, and the correction circuit corrects the video signals in the memory based upon the correction values in the memory.
摘要:
High frequency offset component information is previously acquired from a solid-state radiation detector. Low frequency offset component information is acquired from the solid-state radiation detector before an operation for recording image information on the solid-state radiation detector is performed. The image signal, which has been outputted from the solid-state radiation detector having been subjected to the operation for recording the image information, is corrected in accordance with offset information, which is constituted of the high frequency offset component information and the low frequency offset component information. The image signal is thus capable of being corrected quickly and accurately such that offset components are removed from the image signal.