Abstract: A lighting device for an observation/image pickup apparatus capable of satisfactorily illuminating a surface of an observed section of a specimen sample for observation irrespective of whether a fine roughness is provided on the specimen surface. Illumination control slit members for laterally projected light, deflected oblique light, vertically projected light, and light composed of laterally projected light and vertically projected light, are provided, and selectively face an illumination light introducing section, to thereby convert illumination light (introduced through the illumination light introducing section) into any desired one of: laterally projected light, deflected oblique light, vertically projected light, and light composed of laterally projected light and vertically projected light, resulting in a surface of an observed section of a specimen sample being illuminated with the converted light.

Abstract: A photocatalyst composite is provided which comprise a substrate having particles of a photocatalyst such as titanium oxide, adhered thereon via a less degradative adhesive such as a fluorinated polymer comprising a copolymer of a vinyl ester and/or vinyl ether and a fluoroolefin, or a silicon based polymer or cement. Furthermore, a process for producing the photocatalyst composite and a coating composition containing the photocatalyst composite are provided.

Abstract: A solder-film forming apparatus for automatically forming a solder-film on a conductive pad of a printed-wiring board. The solder-film forming apparatus includes a mechanism for receiving a solder ball, a suction head provided on a distal end thereof with a holding surface for holding the solder ball and a suction port opening to the holding surface, a suction mechanism for generating a negative pressure in the suction port of the suction head, and a mechanism for moving the suction head. The solder-film forming apparatus further includes a controller having printed-wiring board information in which data including a positional information of the pad on the printed-wiring board is preset and controlling a movement of the suction head by the head moving mechanism and an operation of the suction mechanism in accordance with the printed-wiring board information.

Abstract: A video microscope capable of optionally and continuously varying image pickup magnifying power of an observed object over a wide range without requiring replacement of a lens. A lens barrel in which a lens system is arranged is slidably positionally adjusted relative to an observation stand in which an illuminating light source is arranged by means of an objective distance adjusting mechanism, to thereby adjust a relative distance between the observed object and an objective side of the lens system. Also, a cylinder of a video signal converting section in which a two-dimensional CCD element is provided is slidably positionally adjusted relative to the lens barrel by means of an enlargement (reduction) magnification and focus adjusting mechanism, resulting in desired magnifying power of the observed object being readily obtained.

Abstract: The invention or the instant application relates to a process for manufacturing a colored metal plate, in that forming an electrophotosensitive layer mainly composed of titanium dioxide and a binder resin on a metal plate as a raw material having a smooth surface of 2 .mu.m Ra or less in the center line average height, and then forming an toner image having a surface granularity of 0.3 or less on the photosensitive layer by electrophotographic method.

Abstract: The present invention is intended to enable the change of the operating mode of an observation apparatus of a video system between a fluorescent observation mode and an ordinary observation mode and to enable the observation apparatus to reproduce a clear image for observation. The observation apparatus in accordance with the present invention uses a principle that an image pickup system provides three color signals, namely, R-, G- and B-signals. The image pickup system of the observation apparatus is provided with an illuminating light selecting means for selectively using light in a specified wavelength region as illuminating light, and a color signal selecting means for selectively providing the color signals. When the specified wavelength region is the visible region, at least the color signals in a wavelength region including the specified wavelength region including the illuminating light are cut off.

Abstract: A lighting device capable of lighting a surface of an observed section of a specimen sample so as to permit an object of observation of the surface to be satisfied even when the surface has relatively fine unevenness. Any one of light field illumination mainly using vertically projected light, dark field illumination mainly using laterally projected light and a combination thereof is selectively carried out with respect to the surface of the specimen sample as desired, to thereby selectively provide a lighted two-dimensional image of the surface and its lighted three-dimensional image as desired.

Abstract: Disclosed is a method of electrophotographic image formation according to which images of high quality can be reproduced with always stable density. This method which includes the step of image formation which comprises forming a static latent image on a photoreceptor by carrying out charging and exposing and then developing is characterized in that maximum image density is maintained constant by measuring surface potential of maximum image density portion just before development and setting developing bias potential based on the above measured surface potential so that difference between the surface potential and developing bias potential becomes constant.

Abstract: Disclosed is a color electrophotographic method according to which color images of high quality can be stably obtained by digital signal processing of image information. This method comprises converting a read image signal to a digital signal, subjecting the digital signal to signal processing which includes tone correction of photoreceptor and tone correction of toner color density, exposing charged photoreceptor with a light having intensity modulated according to the signal to form a electrostatic latent image and then developing the latent image.

Abstract: Antimicrobial powders are obtained by suppporting at least one antimicrobial metal of copper, zinc and alloys thereof on the surface of hydrous titanium oxide or titanium oxide particles by electroless plating, vapor deposition, compression mixing, mixing and reducing, and thermal decomposition of a compound. These powders are used to provide antimicrobial resin compositions, antimicrobial rubber compositions, antimicrobial glass compositions and antimicrobial coating compositions.

Abstract: A vehicle window glass is provided with an antenna to be fit in a window frame of a vehicle such as an automobile. The antenna comprises a plurality of antenna elements which are disposed on a portion of the glass extending generally alongside the window frame. Thus, the antenna elements are spaced from the window frame at a reference or ground potential and preferably close to the sides of the frame. The antenna elements are each designed to have a different length from one another so that they can receive radio waves covering a relatively broad frequency band with a relatively high sensitivity.

Abstract: A photographic copying apparatus for reproducing an original on photosensitive paper. A roll of photosensitive paper mounted in a magazine is fed downwardly and cut into sheets. Each sheet is sucked to a vertically arranged suction conveyor and fed down. At a predetermined position, the feed of the sheet stops. An exposure table which is turnable and movable between two points is turned and pressed against the sheet on the conveyor. The suction conveyor stops sucking the sheet while the exposure table starts sucking it, so that the sheet is handed over to the latter. The table now carrying the sheet moves toward the expsoure unit. On its way, it is turned and passed under a corona charger. As the table reaches and the exposure unit, it is turned again and the light reflected by an original is shed on the sheet for light exposure. The table is then turned to bring its sheet carrying side down and moved in an opposite direction toward the conveyor.

Abstract: A lamp unit for use in an electrophotographic copying apparatus. The lamp unit containing a lamp moves under an original on the original support. The lamp unit is formed with a slit through which the light from the lamp is shed on to the original and is reflected by it on to a photosensitive object to form an image thereon. The slit is the narrowest at its center and gradually widens toward its both ends. Also, the lamp unit is accelerated until it reaches the center of the original support and is decelerated thereafter. This assures a uniform distribution of light over the surface of a photosensitive object.

Abstract: An antenna element is mounted on a glass of a rear quarter window of a vehicle along the edge thereof. A coupling element is provided midway along said antenna element for coupling between two segmented elements with phase adjustment between reception signals thereof in a specific frequency range. The coupling element connects the two segmented elements in lower frequency range, and disconnects the two elements in higher frequency range. The length of the antenna element is automatically corrected in respective low and high frequency ranges so as to cover a wide range.

Abstract: A pair of antenna elements are mounted on a glass of a rear quarter window of a vehicle. Feed points of these elements are provided at a corner portion of the window. One antenna element extends clockwise about the center of the window glass and the other antenna element extends counterclockwise thereabout from their corresponding feed points. The characteristics of both antenna elements significantly differ and complement each other. It is convenient for a diversity reception system. An auxiliary element branches from one antenna element to extend along the other antenna element. The auxiliary element compensates for impedance characteristics of the antenna elements to tune up reception characteristics thereof.

Abstract: An apparatus for producing an electrophotographic print on a photosensitive receptor which is movable through a plurality of predetermined stations so as to produce an electrostatic latent image on the photosensitive receptor, the apparatus including a rotary drum having a peripheral surface which defines an image forming section and a non-image forming section, the photosensitive sheet being placeable on the image forming section of the drum surface, a developing unit having at least one developing section for supplying a developer to the photosensitive sheet on the drum, thereby making the electrostatic latent image visible, and a device for collecting the used developer from the photosensitive sheet, the collecting device being provided axially of the drum in the non-image forming section of the peripheral surface.

Abstract: This invention is a method of color electrophotography in which toner images are superposed sequentially on a photosensitive material sheet to form a multi-color image by using a liquid developer. According to this method, the photosensitive material sheet is made to pass by a conductive doctor member and then by an air blasting member in sequence immediately after development, so as to form the multi-color image. By this method, the multi-color image can be formed in the condition that most of a excess developer is removed while a small quantity of carrier liquid containing no residual toner particles is made to exist as a uniform liquid layer on the surface of the photosensitive material sheet, and thus a clear image free from a fogging of the surface can be obtained.

Abstract: A liquid developing apparatus for developing a latent electrostatic image by contacting a liquid developer with an electrophotographic photoreceptor bearing said latent electrostatic image on the undersurface thereof while moving the electrophotographic photoreceptor horizontally over a liquid developing bath. In the apparatus, a number of horizontally spaced developing electrodes in the form of bars having a vertical cross-section in the shape of a tetragon are disposed in the bath very near the undersurface of the photoreceptor. When the liquid developing apparatus is used, an electrophotographic image can be obtained having a high quality but being free from non-uniformity of image density, edge effect and flow of image or streaks.

Abstract: Electrophotographic photosensitive materials having excellent electrophotographic properties and high whiteness wherein titanium dioxide containing a small amount of Li, Zn, Mg, Ca or Ba in its crystal structure is used as electrophotographic photosensitive powder.