Abstract: The present invention is adapted to form a finger table for supporting and locating a finger to be authenticated by touching the front part of the finger in a case, make the case closed at parts corresponding to the tip and the base of the finger to be authenticated and parts corresponding to left and right sides of the finger, make the case opened at parts corresponding to the front part and the backside of the finger, and form an imaging range of imaging means such as an imaging element in the parts corresponding to the left and right sides of the finger. With the configuration, a finger vein pattern inputting device with high operability and authentication accuracy reserved is provided.

Abstract: There is a need for providing a finger vein image inputting device that can miniaturize and thin a finger vein authentication apparatus and provide high authentication accuracy. The finger vein image inputting device according to the present invention includes a body, a band pass filter for transmitting only light of a specific wavelength, a light source for applying light to a finger placed over the band pass filter, and an imaging means for imaging transmitted light from the finger. A gradient index lens is provided between the band pass filter and the imaging means and causes refractive-index distribution around an optical axis. A polarizing filter is provided at least one of between the light source and the finger and between the finger and an imaging device.

Abstract: There is a need for providing a finger vein image inputting device that can miniaturize and thin a finger vein authentication apparatus and provide high authentication accuracy. The finger vein image inputting device according to the present invention includes a body, a band pass filter for transmitting only light of a specific wavelength, a light source for applying light to a finger placed over the band pass filter, and an imaging means for imaging transmitted light from the finger. A gradient index lens is provided between the band pass filter and the imaging means and causes refractive-index distribution around an optical axis. A polarizing filter is provided at least one of between the light source and the finger and between the finger and an imaging device.

Abstract: Provided is a finger vein authentication apparatus including a light source for emitting light toward a finger, an image sensor for taking an image of the transmitted light from the finger, a lens apparatus for imaging the transmitted light to the image sensor, and an image processor for processing the taken image. The lens apparatus includes a lens unit, and the image processor extracts a vein pattern of the finger upon correcting the strain of the taken image.

Abstract: The present invention is adapted to form a finger table for supporting and locating a finger to be authenticated by touching the front part of the finger in a case, make the case closed at parts corresponding to the tip and the base of the finger to be authenticated and parts corresponding to left and right sides of the finger, make the case opened at parts corresponding to the front part and the backside of the finger, and form an imaging range of imaging means such as an imaging element in the parts corresponding to the left and right sides of the finger. With the configuration, a finger vein pattern inputting device with high operability and authentication accuracy reserved is provided.

Abstract: Within a finger vein authentication input apparatus, a finger positioning portion comprises a fingertip projection portion provided at a position corresponding to the tip of the finger when picking up an image thereof, protruding into the horizontal direction, soas to be in contact with a tip of a finger, horizontally, a finger pulp projection portion provided at the position corresponding to the tip of the finger when picking up the image thereof, protruding into the vertical direction, so as to be in contact with the tip of the finger, vertically, and a base guide portion provided at the position corresponding to the base side than a second joint of the finger when picking up the image thereof, having a configuration curved along the cross-section configuration of the finger, or a curved configuration including a projection portion at a center thereof, thereby increasing an accuracy of positioning the finger in the longitudinal direction thereof, and further lowering shift of angle of attaching the finger i

Abstract: An electron beam trajectory controlling device includes a main deflection section having a first main coil and defining a first path and being configured to control a trajectory of an electron traveling along the first path. The main deflection section includes a first auxiliary coil provided proximate the first main coil. A minor deflection section is provided adjacent to the main deflection section and has a first minor coil that is coupled to the first auxiliary coil. The minor deflection section defines a second electron path that is aligned to the first path. The minor deflection section cooperates with the main deflection section to control the trajectory of the electron.

Abstract: An electron beam trajectory controlling device includes a main deflection section having a first main coil and defining a first path and being configured to control a trajectory of an electron traveling along the first path. The main deflection section includes a first auxiliary coil provided proximate the first main coil. A minor deflection section is provided adjacent to the main deflection section and has a first minor coil that is coupled to the first auxiliary coil. The minor deflection section defines a second electron path that is aligned to the first path. The minor deflection section cooperates with the main deflection section to control the trajectory of the electron.

Abstract: An electron beam trajectory controlling device includes a main deflection section having a first main coil and defining a first path and being configured to control a trajectory of an electron traveling along the first path. The main deflection section includes a first auxiliary coil provided proximate the first main coil. A minor deflection section is provided adjacent to the main deflection section and has a first minor coil that is coupled to the first auxiliary coil. The minor deflection section defines a second electron path that is aligned to the first path. The minor deflection section cooperates with the main deflection section to control the trajectory of the electron.

Abstract: An electron beam trajectory controlling device includes a main deflection section having a first main coil and defining a first path and being configured to control a trajectory of an electron traveling along the first path. The main deflection section includes a first auxiliary coil provided proximate the first main coil. A minor deflection section is provided adjacent to the main deflection section and has a first minor coil that is coupled to the first auxiliary coil. The minor deflection section defines a second electron path that is aligned to the first path. The minor deflection section cooperates with the main deflection section to control the trajectory of the electron.

Abstract: A deflection yoke for a CRT including a horizontal deflection coil having an axial length in an axial direction of the CRT in an installed position that is not less than 60 mm and not more than 80 mm, a vertical deflection coil having an axial length in an axial direction that ranges from 45 mm to 65 mm, and a core having an axial length in the axial direction that ranges from 25 mm to 45 mm. The subject deflection yoke prevents deterioration in horizontal and vertical deflection sensitivity in CRTs having a neck diameter that is greater than 22 mm and less than 26 mm with a deflection angle that ranges from 95 to 110 degrees. In an alternate embodiment a deflection yoke for a CRT including a horizontal deflection coil, a vertical deflection coil disposed outside of the horizontal deflection coil, and a core disposed outside of the vertical deflection coil wherein in an installed position of the yoke, an inner surface of the deflection yoke is circumscribed around a circle having a diameter of 56.

Abstract: A cathode ray tube display device including unnecessary radiating magnetic field reducer which improves the ability to reduce an unnecessary radiating magnetic field, especially, generated by a vertical deflection coil. A pair of coil is disposed in opposing relationship on the opposite sides of the ferrite core along an X-axis or in the horizontal direction of the deflection yoke so as to be in contact with an open side end of the ferrite core. Each coil has a shape curved with a predetermined radius of curvature conforming to the shape of the outer peripheral surface of the ferrite core. The ferrite core acts as a magnetic material for the coils which reduces the unnecessary radiating magnetic fields to increase the coil inductances to thereby produce a large extremely low frequency magnetic field (ELMF) reducing effect.

Abstract: A color cathode ray tube includes a three beam inline electron gun; a deflection device for performing deflection and self-convergence; a static beam convergence device having permanent magnets for generating a magnetic field adjustable to converge three electron beams at a central portion of a phosphor screen; and a dynamic convergence device having coreless electromagnetic coils for generating a magnetic field adjustable to converge three electron beams at peripheral portions of the phosphor screen. The dynamic beam convergence device includes a spiral coil conductor formed on a non-magnetic film.

Abstract: A cathode-ray tube apparatus capable of reducing a high frequency electric field radiated from the deflection yoke and the deflection and high voltage circuit to the outside of the cathode-ray tube apparatus. Mounted on the deflection yoke or on the cathode-ray tube are an induction coil for generating a pulse voltage opposite in polarity to a high pulse voltage applied to the h and an electric field cancellation electrode made of a conductive wire to which the opposite polarity pulse voltage is applied. When the opposite polarity pulse voltage is applied to the electric field cancellation electrode, the electric field cancellation electrode radiates an electric field opposite in polarity to the high frequency electric field radiated from the deflection yoke to the outside of the cathode-ray tube apparatus to reduce the intensity of the high frequency electric field.

Abstract: A cathode-ray tube display unit provided with a high voltage transformer for supplying high voltage to an anode of a cathode-ray tube, a deflection yoke having a horizontal deflection coil and a vertical deflection coil, and an interior conductive coating formed on the inside of a glass vessel of the cathode-ray tube, in which there is provided an electrode in the conductive coating form formed on an external wall face of a glass vessel at a funnel portion being electrically separated from an exterior graphite coating formed on an external surface of the cathode-ray tube and connected to ground, and a circuit for applying reverse pulse voltage V.sub.1 that satisfies (V.sub.0 .times.C.sub.0)>(V.sub.1 .times.C.sub.1) to the electrode in the conductive coating form is included. Where, it is assumed that flyback pulse voltage supplied to the deflection yoke means is V.sub.0, reverse pulse voltage having a polarity reverse to that of voltage generated in the interior conductive coating is V.sub.

Abstract: A color cathode-ray tube which includes a deflection yoke having a convergence correcting device and an electron gun provided to the deflection yoke for generating a multiplicity of electron beams.

Abstract: A color cathode-ray tube which includes a deflection yoke having a convergence correcting device and an electron gun provided to the deflection yoke for generating a multiplicity of electron beams.

Abstract: A deflection yoke device comprises a convergence correction circuit connected between a vertical deflection coil and correction coils. The convergence correction circuit includes a first, second and third impedance elements connected in parallel and at least two diodes. The diodes are connected in series in the same direction and respond to a vertical deflection current of the vertical deflection coil to regulate a current flowing through the correction coils to thereby correct the YH mis-convergence.

Abstract: A deflection yoke attached to a color cathode ray tube forming multiple electron beams arranged in line, and in particular a deflection yoke having convergence correction apparatus. Circuit components such as a plurality of resistors, variable resistors, and diodes are connected in parallel with vertical deflection coils. A part of a vertical deflection current flowing through the vertical deflection coils is diverted to the circuit components. Furthermore, the amount of the diverted current is made adjustable so that it will differ between a former part of a vertical deflection period and a latter part thereof. As a result, horizontal line misconvergence at upper and lower ends of the screen can be completely corrected.

Abstract: A cathode-ray tube apparatus capable of reducing a high frequency electric field radiated from the deflection yoke and the deflection and high voltage circuit to the outside of the cathode-ray tube apparatus. Mounted on the deflection yoke or on the cathode-ray tube are an induction coil for generating a pulse voltage opposite in polarity to a high pulse voltage applied to the h and an electric field cancellation electrode made of a conductive wire to which the opposite polarity pulse voltage is applied. When the opposite polarity pulse voltage is applied to the electric field cancellation electrode, the electric field cancellation electrode radiates an electric field opposite in polarity to the high frequency electric field radiated from the deflection yoke to the outside of the cathode-ray tube apparatus to reduce the intensity of the high frequency electric field.