Abstract: A receiver for spectrum spread communication capable of positively accomplishing synchronism between the receiver and a transmitter with simple construction. The receiver is constructed so as to carry out the synchronism of frequency hopping between the receiver and the transmitter my means of the output signal of a correlation unit.

Abstract: A transmitter for a radio control system capable of highly facilitating the changing-over operation and constantly exhibiting desired control characteristics. The transmitter includes a plurality of main control elements which are controllable in directions relative to each other about a neutral point and control basic operation of a controlled unit, an auxiliary control element for selecting control characteristics of the main control elements, a first changeover element for changing over mechanically neutral of the main control elements, and a second changeover element operated when specific control characteristics of the main control elements are selected by the auxiliary control element, resulting in setting an electrically neutral point of an actuation section depending on the mechanically neutral point of the main control elements. The operation of the first changeover element causes the second changeover element to be changed over in association therewith.

Abstract: A keyboard switch capable of minimizing the number of parts to reduce manufacturing costs and giving an operator a light touch during its operation. The keyboard switch includes an actuator arranged in a frame for pressing a membrane switch. The actuator includes a key stem, a pressing member for forcedly pressing the membrane switch, a pair of leaf springs for forcedly pushing up the key stem. The key stem, pressing member and leaf spring means are integrally formed and joined together by a base member.

Abstract: A fluorescent printer head capable of rendering luminance of dot-like anodes along its main scanning direction uniform and stable to improve quality of printing in an optical printer. The fluorescent printer head includes dot-like anodes constituting a luminous area, control electrodes having apertures formed at positions corresponding to the dot-like anodes, and at least one filamentary cathode stretched above the control electrode extending along the middle portion of the luminous area.

Abstract: A fluorescent printer head includes a second control electrode (4) including a plurality of grid plates (5) formed with slits (6) and arranged in parallel above anodes (104), and a first control electrode (1) comprising a single plate member formed with a plurality of slits (3) and arranged above the second control electrode (4). The second control electrode (4) has a dummy grid plate (7) at each end, while the first control electrode (1) has a contiguous dummy grid section (2) at each end. This results in the electric field near the control electrodes being uniform in the longitudinal direction of anodes, preventing nonuniformity of luminance.

Abstract: A clicked key board switch capable of minimizing an error or deviation between a position at which click feeling is produced and a position at which the switch is turned on while reducing the number of parts. In the switch, when a key stem slidably arranged in a frame is pushed down, a membrane switch is forcedly operated through a pressing element provided in the frame. The pressing element includes a base fixed at an upper end thereof on the side of the frame and provided thereon a projection engaged with the key stem when it is pushed down and a pressing section connected to the base so as to extend from the base to a position above the membrane switch and forcedly operating the membrane switch when the base is laterally forced by the key stem.

Abstract: An image display device capable of causing an interval between picture cells to be significantly decreased using control electrode means of a simple structure, to thereby provide a displayed image with high resolution. In the device, two control electrode groups are arranged in directions across each other, wherein the respective pairs of control electrodes in one of the control electrode groups are scanned in turn. The respective adjacent three or more control electrodes of the other groups are divided into sets, in which the respective pairs of the control electrodes are driven in turn in synchronism with the scanning.

Abstract: A fluorescent display device capable of preventing variation or flickering of luminescence due to deformation of a mesh section. The fluorescent display device includes mesh-like control electrodes each being made of a material of which the coefficient of average thermal expansion is smaller than that of the glass substrate or a spacer frame at a temperature within the range of from 30.degree. C. to 250.degree. C. and is substantially equal to or larger than that of the glass substrate or the spacer frame at a temperature within a range from 30.degree. C. to the sealing temperature of the fluorescent display device.

Abstract: A display device capable of preventing vibration of control electrodes stretched in an envelope. The control electrodes are divided into two assemblies or a main control electrode assembly and an auxiliary control electrode assembly arranged in contact with or in proximity to the main control electrode assembly so that vibrations of both control electrode assemblies may damp each other due to a difference between natural frequency therebetween, thereby restraining vibration of the control electrodes.

Abstract: A flat type display device capable of being substantially thinned and carrying out display of very high definition on a large image plane. A plurality of electron streams emitted from a cathode arranged at one end of a airtight casing in a manner to be deviated from a phosphor screen section are guided and turned toward the phosphor screen section. Then, the electron streams are selected and controlled by an address electrode section, resulting in formation of an electron beam, which is then accelerated by an accelerating electrode section and impinged on the phosphor screen section for desired luminous display.

Abstract: A fluorescent composition capable of emitting light of various luminous colors under electron or ultraviolet excitation and a fluorescent luminous device having mounted such a fluorescent composition mounter therein. The fluorescent composition has a general formula of ZnO.Ga.sub.2 O.sub.3 and emits light of a luminous spectrum distributed at an ultraviolet or visible region. The fluorescent composition includes a matrix of ZnO.Ga.sub.2 O.sub.3 and Cd doped in the matrix. The fluorescent luminous device includes at least one ZnO.Ga.sub.2 O.sub.3 :Cd phosphor deposited on anode conductors and at least one luminous display section having an ultraviolet excitable visible light emitting phosphor deposited thereon within a region of radiation of ultraviolet rays emitted from the ZnO.Ga.sub.2 O.sub.3 :Cd phosphor.

Abstract: A linear scale measuring device capable of minimizing an error in measuring which occurs due to vibration and/or shock, carrying out the mounting on a machine tool or the like at a sufficient degree of freedom and being efficiently assembled. The device includes a slider having an index scale arranged opposite to a main scale and adapted to be moved in relation to the main scale and a stationary link to which the slider is securely connected. The slider is connected to the stationary link at two positions defined along a movement direction of the slider by an elastic connection means comprising a coil spring and a wire spring which act to force the slider toward the main scale.

Abstract: An optical control element is disclosed which is capable of accomplishing the simplifying, small-sizing and lightening of the structure. The optical control element comprises a substrate exhibiting both an optical function and a magnetic function and a Cd.sub.1-x Mn.sub.x Te directly deposited on the substrate.

Abstract: A measuring device is disclosed which is capable of exhibiting increased resolution. The device is constructed to detect a moire fringe produced by two scales as A and B phase signals different in phase by 90.degree. and to convert each of the phase signals into a frequency-modulated signal by means of a carrier of a predetermined cycle to digitally read out the deviation of a phase varied with relative movement between both scales.

Abstract: A light source which is capable of improving lightening efficiency is disclosed. The light source includes a phosphor layer provided at a part of a filter arranged adjacent to a light emitting lamp or arranged so as to serve as a reflection layer so that it may transmit light of the lamp required and be excited by a part of light of the lamp to emit light of a visible region to increase the intensity of light discharged from the light source.

Abstract: A fluorescent display device which is capable of substantially reducing reflection by wiring conductors and anode conductors to significantly improve visibility in reading of a display segment. The fluorescent display device is constructed in a manner to arrange anode conductors and wiring conductors each formed of a metallic film through a colored antireflection film on a substrate.

Abstract: An aluminum film deposited copper material capable of being effectively used as a wiring and a heat sink for various electronic elements, an electrical wire, a cable, and the like while preventing diffusion and penetration of copper atoms into a different element. The copper element includes an aluminum film formed on a copper base according to an ion beam deposition techniques. Thus, the aluminum film may be deposited on the copper base with adhesion and denseness sufficient to block diffusion or exudation of copper atoms into the deposited aluminum film. Also, the aluminum film may be deposited in a thickness sufficient to ensure physical and electrical characteristics of copper.

Abstract: A radio remote control system for a model drive unit such as a model plane or the like is disclosed which is capable of eliminating retrimming of the same controlled object of which the trim adjustment was completed to substantially simplify the troublesome trim adjustment. The system includes a trim control voltage code memory which serves to separately readably stores therein trim control voltage codes representing trim control voltages of trim controllers concerned with a previously controlled object, so that the trim control voltage codes corresponding to the positions of the trim controllers during the previous control operation may be read out from the memory during recontrol of the previously controlled object. The system may also include a digital adder for carrying out addition of the trim control voltage codes of the previously controlled object read out from the memory and the trim control voltage codes concerned with the same controlled object currently controlled.

Abstract: A fluorescent display device is disclosed which is capable of improving visibility of luminous display of anodes. In the device, cathodes are arranged laterally out of an area opposite to the anodes so as not to hinder the observation of the luminous display. The device also includes a deflecting electrode for deflecting and diffusing electrons emitted from the cathodes so as to direct them toward the anodes.