Abstract: Herein disclosed is a surveillance system, comprising: a camera unit for transforming an image into an image signal and outputting the image signal, and a display unit having a screen and operative to transform into an image the image signal outputted by the camera unit to display the image on the screen. The camera unit is operative to automatically chase an object as a chasing target to have the display unit display the object as the chasing target. The display unit includes marker displaying means for displaying a marker on the screen; and chasing target determining means for determining the object spaced apart from the marker at a predetermined distance as the chasing target among the images displayed on the screen.

Abstract: A laser machining system for machining a plurality of different machining spots on a work, which comprises a laser oscillator for generating laser light; a laser light scanner for deflecting the laser light generated from the laser oscillator so as to sequentially irradiate the laser light to the plurality of variable machining spots on the work; an irradiation time setting member for determining previously a laser irradiation time for machining one machining spot on the work in one operation; and a controller for controlling the laser light scanner to sequentially move the machining spots in a time division fashion so that the laser irradiation time to machine each machining spot in one operation does not exceed the determined irradiation time. Thus, this laser machining system can perform laser machining with high precision at a machining rate as high as possible with a thermal effect prevented.

Abstract: A cable-saving type CCTV system for transmitting a multiplexed video signal over a single coaxial cable connecting a camera site and a control site by frequency-modulating a bi-directional audio signal and producing a digital control signal and a digital alarm signal and multiplexing the resultant signals and an external synchronizing signal in a blanking period of the video signal.

Abstract: The present invention discloses an ink-jet type recorder that forms an ink image on a recording medium comprising a porous ink carrier withholding ink in the pores, an ink tank at a soaking position a transferring device for transferring ink carrier from the soaking position to a recording position where the ink carrier and the recording medium face each other, a heating device for heating the ink withheld in pores of the ink carrier to a certain temperature, the heating device including a contact heater which is in contact with the ink carrier at the recording position so as to conduct heat from the contact heater to the withheld ink, and the certain temperature being sufficiently high to lower the viscosity of the ink but insufficiently high to boil the ink, and an electric field generating device for generating an electric field in order to activate an electrostatic force in such a way that the ink is attracted onto the recording medium from the ink carrier.

Abstract: The present invention provides a polyolefinic resin-coated carrier having a rough surface and containing a core material in a quantity of 90 or more % by weight. Said resin-coated layer may contain fine particles having a charge-controlling function and/or electrically conductive fine particles as additives.

Abstract: This invention relates to toner for the development of electrostatic latent images comprisinga core particle comprising at least styrene-acrylic copolymers or polyester resins,an intermediate layer coating the core particle and comprising at least styrene-acrylic copolymers, andan outermost surface layer coating the intermediate layer and comprising at least styrene-acrylic copolymers, the contents (%) of the styrenic monomer component in styrene-acrylic copolymers of which the core particles, the intermediate layers and the outermost surface layers are formed being in specified relationships.

Abstract: The present invention provides fine particles comprising core particles and polyolefinic resin layers for composing an electrostatic latent image developer, characterized in that the polyolefinic resin layers are formed by polymerizing olefinic monomers on surfaces of the core particles.

Abstract: A first conversion means amplifies the directly operated displacement of a laminated piezoelectric actuator and converts it to a rotary displacement. A second conversion means reversely converts this rotary displacement to a directly operated displacement for the purpose of driving a valve spool. The directly operated displacement of the piezoelectric actuator can be converted to a rotary displacement by placing the piezoelectric actuator in contact with a cam disposed on a first rotatable shaft so that a rotary tangential line force will act at a position deviated a fixed amount from the center of the first shaft. The displacement amount of the piezoelectric actuator is amplified by the combination of a gear disposed on the first shaft and a pinion disposed on a second shaft, with the second shaft being parallel to the first shaft. The second conversion means, which converts the rotation of the second shaft to the linear displacement of valve spool, can be a rack and pinion mechanism.

Abstract: A laser scanner driving device has a piezoelectric actuator which acts through a lever to rotate a drive shaft against the force of a plunger which is biased by a reaction spring. The drive shaft is the input to a displacement amplifier. A laser beam deflecting mirror is mounted on the output shaft of the displacement amplifier. In order to reduce the effect of friction on the conversion of the rectilinear displacement of the piezoelectric actuator into the rotational displacement of the mirror and to avoid non-coaxial reaction forces on the piezoelectric actuator, at least one rotatable contactor is provided between the free end of the piezoelectric actuator and the lever and at least one rotatable contactor is provided between one end of the plunger and the lever.

Abstract: A piezoelectric actuator capable of producing a linear displacement is used for the control of deflection angle of a scanning deflection mirror. To convert the linear displacement produced by the piezoelectric actuator into rotational displacement, a lever contacting the piezoelectric actuator is attached to the rotary shaft of the mirror and is urged by a spring in the direction counter to the direction of rotation caused by the piezoelectric actuator. An amplifying mechanism amplifies a small displacement produced by the piezoelectric actuator into a large rotational displacement proportional to the linear displacement produced by the piezoelectric actuator, thereby imparting a desired deflection angle to the deflection mirror. A mechanism for detecting rotational displacement is associated with the input or the output shaft of the amplifying mechanism to feedback any positional offset.

Abstract: The present invention provides a polyolefinic resin-coated carrier having a rough surface and containing a core material in a quantity of 90 or more % by weight. Said resin-coated layer may contain fine particles having a charge-controlling function and/or electrically conductive fine particles as additives.

Abstract: The present invention relates to a toner for developing electrostatic latent images comprising:a core particle comprising resin with 1,000-100,000 in number average molecular weight (Mn.sub.1),an intermediate layer coating the core particle and comprising resin with 5,000-300,000 in number average molecular weight (Mn.sub.2) and,an outermost surface layer coating the intermediate layer and comprising resin with 10,000-1,000,000 in number average molecular weight (Mn.sub.3);the number average molecular weights Mn.sub.1, Mn.sub.2 and Mn.sub.3 satisfies the relationship of;Mn.sub.1 <Mn.sub.2 <Mn.sub.

Abstract: The present invention provides an apparatus including a laser scanner wherein the apparatus further includes a scanner temperature detector (3) located in the proximity of a position sensor (2), an environment temperature detector (4) and temperature controlling mechanism adapted to perform controlling operation so as to allow the temperature of the position sensor to be kept constant on the basis of an output from the environment temperature detector and an output from the scanner temperature detector.