摘要:
An electronic circuit automatically corrects the convergence of an electron beam of a color cathode ray tube. Light reflected upon scanning by the electron beam of an index pattern disposed at a predetermined position on the shadow mask of the color cathode ray tube is detected by a photodetector. A detected signal representative of the scanning position of the electron beam is obtained, and convergence error information is obtained based on the detected signal. The correcting circuit comprises an integrator for integrating the detected signal produced during a plurality of traverses of the index pattern by the electron beam. The convergence error information is based on the result of the integration. The effect of noise included in the detected signal is thereby reduced, and convergence correction with increased accuracy is obtained.
摘要:
A color cathode-ray tube where an electron beam selection mask with an aperture grille type beam selection electrode of a thin metal plate attached to a frame is supported by engagement of stud pins with support springs and is thereby positioned stably opposite to a color luminescent screen formed on the inner surface of a panel. A projection is formed on either the top of each stud pin or the bottom of each cap opposed thereto, while a recess is formed in the other for engagement with the projection in the direction orthogonal to the action of the support spring. The mutual contact portions of such projection and recess are coated with solid lubricant films so that the beam selection mask can be reset at its proper position despite any external impact applied thereto. The elasticity constant of the frame is selectively set at a desired value with additional disposition of reinforcing plates having the same thermal expansion coefficient as that of the frame, thereby averting vibration of the beam selection mask. And rotary mechanisms are formed relative to the support springs and are rotated in accordance with thermal expansion of the frame, so that the frame is shifted toward the panel surface having a color luminescent screen thereon, whereby mislanding of the electron beam due to temperature rise in the beam selection mask can be prevented.
摘要:
There is provided a human-body aimed spacer for restricting rugged feeling, which is flexible and light-weighted and requires only a smaller storage space. The spacer comprises a number of convex parts 20, and flexible connecting portions 26. The convex parts 20 each comprises: a frame-like portion 21 formed at a side contacting with a human body; four column portions 22, each having one end continuing to the frame-like portion, and each being formed to rise from the frame-like portion; and a rising-portion integrator 23 for interconnecting the other ends of the column portions 22 with one another. The flexible connecting portions 26 each interconnect adjacent ones of the frame-like portions 21 with each other. The spacer is configured to contact with a human body at the side where the frame-like portions 21 are formed, and to abut on a cushion or the like at the side where the rising-portion integrators are formed.
摘要:
A seat cushion has cooling flow passages that are provided in a substantially parallel and planar manner. Air at a temperature lower than the body temperature is blown through the cooling flow passages substantially parallelly to the body surface of a person sitting on the cushion. As a result, the temperature gradient near the body surface is increased so as to release heat from the body, resulting in a feeling of coolness.
摘要:
The present invention provides: a cooling pillow which is easy to prepare, whose cooling capability lasts for a long time, which does not require a time-consuming operation such as changing the water, and which is effective in a hard-to-sleep summer night or when one has a fever from a cold; a cooling garment which has a reduced power consumption, allows one to avoid heat with a simple structure, and allows one to be comfortable even in a high temperature environment; and a cooling helmet capable of eliminating the discomfort caused by heat, preventing exhaustion of stamina, lowering of concentration, and lowering of work efficiency, and increasing the safety during work, etc. The above-described cooling pillow, the-cooling garment and the cooling helmet are all based on a principle that by allowing air to flow in close contact with a fibrous material which is in the vicinity of the body and contains a sufficient amount of water to promote vaporization of water so that the head, the trunk, etc., can be cooled by absorption of the vaporization heat thereupon. Accordingly, they comprise a fan for supplying air, a passageway for passing the air therethrough, a vaporization sheet defining the passageway and containing water, etc.
摘要:
A convergence measurement apparatus for a color CRT comprising a light sensor which is placed on the face of a CRT to be tested, a CPU, and a pattern generator which causes a plurality of luminescent lines of a primary color to be displayed on one area of the CRT screen and a plane area comprised of a composite of the two other primary colors to be displayed on another area of the screen. The plurality of lines are shifted at a given rate along the designated area of the screen, the color of the displayed lines successively changing to show each primary color. The light sensor receives light intensity information from the generated pattern and the CPU calculates a mis-convergence value based on the light intensity data. The apparatus further includes a self-inspection feature by which the processing is executed for successive measurement of the same primary color. If the values for each measurement are identical the system is assumed to be operating normally and if there is variation, abnormal operation can be diagnosed.
摘要:
There is provided a human-body aimed spacer for restricting rugged feeling, which is flexible and light-weighted and requires only a smaller storage space. The spacer comprises a number of convex parts 20, and flexible connecting portions 26. The convex parts 20 each comprises: a frame-like portion 21 formed at a side contacting with a human body; four column portions 22, each having one end continuing to the frame-like portion, and each being formed to rise from the frame-like portion; and a rising-portion integrator 23 for interconnecting the other ends of the column portions 22 with one another. The flexible connecting portions 26 each interconnect adjacent ones of the frame-like portions 21 with each other. The spacer is configured to contact with a human body at the side where the frame-like portions 21 are formed, and to abut on a cushion or the like at the side where the rising-portion integrators are formed.
摘要:
The invention provides a dehumidifier air passage being capable of providing a sufficient effect of dehumidification and being excellent in mass productivity. A dehumidifier air passage 10 is used in a dehumidifier for removing moisture by making the outside air flow in the vicinity of the surface of a human body and the like, and comprises a nearly flat spacer 11 and a moisture transmittable sheet 21. The spacer 11 is used for supporting the moisture transmittable sheet 21 and securing a space through which air flows, and has a nearly flat base 15 and a plurality of long and narrow projections 16. Each of the projections 16 is formed so that the face of it facing the moisture transmittable sheet 21 is at most 50% in area of the face being in contact with the base 15. A foamed plastic material is used as a material for the spacer 11. The spacer 11 is manufactured by cutting a foamed plastic material or by molding a foamed plastic material.
摘要:
A position measuring apparatus consists of light receiving means in which a plurality of light receiving devices linearly arranged at an equal interval in the one-dimensional case are grouped so that each group includes the same number of light receiving devices and light source means for radiating light on this light receiving means. A single light source system, a plural light source system, a slight difference system, an interference system and an interference slight difference system which are respectively different in the constitution of this light source means are provided. Signals output from grouped corresponding light receiving devices in the respective groups are added and the periodic function is obtained by arranging this added result at an equal interval. The relative position of light receiving means and light source means in actual space can be precisely obtained by calculating the phase of this periodic function.
摘要:
An adjusting apparatus for cathode ray tube equipment for convergence and/or image distortion adjustment which includes a pattern generator connected to a cathode ray tube to be measured and which generates a predetermined pattern having a plurality of bars and a white area, a probe attached to a front face of the cathode ray tube to be measured, and which includes a photo detector and a switch for starting measurement, an analog-to-digital converter connected to the probe, a measured data memory connected to an analog-to-digital converter for storing data received by the probe, a processor for controlling the pattern generator, receiving data from the measured data memory, and calculating the data according to various measurement routines.