Abstract: In a copier including a photoconductor having a plurality of photoconductive sections connected in series with one another to form an endless strip-type photoconductor, and including suitable instrumentalities for successively feeding the photoconductive sections from a zig-zag folded stack of such sections through several processing stations and back to the stack, there is provided apparatus for storing the photoconductive sections in the stack. The storing apparatus includes a receptacle having oppositely disposed walls defining an inlet opening and an outlet opening. The walls relatively converge towards one another from the inlet opening to the outlet opening, for guiding the folds of the photoconductive sections progressively closer to the outlet opening than the mid-portions thereof in transit through the receptacle. A pair of tamping devices, movably mounted on the opposite receptacle walls, cooperate with the receptacle walls for guiding incoming photoconductive sections toward the stack.

Abstract: Optical projectors of the kind which supply a beam of radiation whose total ngular field 2.rho.' is determined in at least one reference plane, the angular field containing all the radiant flux, the projector also incorporating a source of radiation associated with a reflecting optical collector system, a conoid or pyramidoid mirror which has at least the reference plane as a plane of symmetry and the minor base of which in conjunction with the reflecting optical collector system, entirely contains optically the source of radiation. The mirror is made to conform to the following dimensional relationships which apply to each cross-section of the mirror through a plane of symmetry: ##EQU1## WHERE D and d are respectively the cross-sectional lengths of the major and minor bases of the mirror in the cross-sectional plane in question, .gamma. is half the mean apex angle of the mirror in the cross-sectional plane in question, and .theta.

Abstract: A visual education system for making and viewing a multi-image film strip. The system includes a camera movable lengthwise and widthwise by a programming apparatus to expose on a film strip a plurality of discrete images; a viewing apparatus for projecting the discrete images on the film strip onto a viewing screen and a slide mount having adjacent rows of apertures therein for receiving the multi-image film strip. The slide mount includes a guide channel that cooperates with an aperture member of the viewing apparatus for projecting the discrete images on the film strip onto the viewing screen.

Abstract: The exhaust of stocked copying paper and the failure in feeding copying paper are detected so that means for driving a feeding system may be immediately stopped, and no failure in feeding copying paper is detected and failure in discharging copying paper is detected so that every operation in the photocopying machine may be stopped and also the power supply to the photocopying machine may be interrupted. The highly efficient and safeguarded operation of the photocopying machine may be ensured.

Abstract: An illumination system for an operating theater having a pinpointing spotlamp and several individual satellite spotlamps all of which are pivotable independently of each other in two mutually-perpendicular directions. The pinpointing spotlamp is adjustable to select a desired area to be illuminated, and each satellite spotlamp is provided with a photoelectric servomechanism which operates in response to light from the area illuminated by the pinpointing spotlamp to adjust the associated satellite spotlamp.

Abstract: A combined fixture and cooling device for the mounting and cooling of fluorescent tubes and made by extrusion of a heat conductive material so as to constitute a cooling tube having an upper wall, a pair of side walls and a concave, part-cylindrical lower wall defining a contact face for the upper surface of a fluorescent tube, the side walls of the cooling tube being provided with lengthwise extending ribs or grooves to provide fastening means for mounting the fluorescent tube on the cooling tube with its upper surface in contact with the contact face of the cooling tube.The fluorescent tube is mounted in sockets associated with cylindrical casings of the same diameter as the fluorescent tubes and including ballast means for the fluorescent tubes, and the cylindrical casings are mounted on the cooling tube by means of spring clips embracing the lower part of the casings and engaging the ribs or grooves of the side walls of the cooling tube.

Abstract: Solid transparent plastic material has frosted surfaces and contains lights the rays of which are diffused by the surfaces and viewed as a solid field of luminous light. Preferably, the lights are variously colored, for example, red, blue and green, and are energized by suitable switching means to produce color fields in each of the colors and in the pastel or sum colors thereof. This color field effect is incorporated in a plastic guitar, energization of the lights therein being responsive to tone frequencies as the guitar is played, to provide a spectacular display of light and whereby the guitar player sees his music in color fields that change hue.

Abstract: The invention relates broadly to a fluorescent lamp construction adapted for use with hats or caps worn by workers in various occupations. The so-called hard hats are now largely worn by workers in hazardous locations, such as mining, construction, service and the like, and our improved fluorescent lamp construction is especially suited for attachment to a hard hat and the invention includes new and novel connection means.The fluorescent lamp is contained within an oblong housing that is removably held horizontally at the front of the hard hat and the lamp is energized by a battery which is carried on the person of the worker, such as by means of a carrying case having a clip for connecting it to a belt worn by the worker.To achieve a high level of light output at low temperatures, the invention includes means for conserving heat generated by the fluorescent lamp. Also, to reduce glare, the invention includes a new and novel means for dispersing the light from the lamp.

Abstract: A both-side printing device which adjusts the mutual position of patterns to a predetermined relation and prints the patterns on the both sides of a both-side sensitive body of a predetermined thickness, in which the relation of the mutual position of individual patterns to be formed on the both-side sensitive body can be detected prior to the both-side printing by imaging one pattern on a mask of other pattern or on a plane having the other pattern formed thereon, and thereby alignment of the two patterns can be effected.

Abstract: In exposure apparatus adapted to expose the phosphor on the face plate of a colour picture tube provided with a slot type colour selection electrode of the type comprising an exposure light source and a correction lens disposed between the light source and the colour selection electrode the exposure light source and the correction lens are moved with respect to the colour selection electrode.

Abstract: A lamp assembly comprises a hollow body in which first and second reflectors are mounted. The hollow body is mounted on a support plate through the intermediary of three adjusting screw devices, to enable the body to be tilted relative to the plate. The second reflector is mounted in the body by means of a flexible support and a pair of spaced adjusting screws which enable the second reflector to be selectively adjusted both in the horizontal plane and in the vertical plane relative to the body.

Abstract: An optical illumination device for use in a copying machine, which illuminates the original to be copied, with a ribbon of light. The optical illumination device comprises a pair of reflectors respectively having concave, reflective surfaces which comprise individual portions of hollow right elliptical cylinders of different ellipticity. Each of these first and second elliptical cylinders has a pair of line foci and the first and second reflectors are arranged such that one of the line foci of the first elliptical cylinder is substantially in alignment with one of the line foci of the second elliptical cylinder. A line light source is disposed in alignment with the other focus of the first elliptical cylinder while the other focus of the second elliptical cylinder is situated in the vicinity or at a position where the original to be copied is placed.

Abstract: The present invention relates to an automatic off-line photograph printing control system consisting of a reader and a printer. The system employs a magnetic or other similar recording means for storing correcting information of a negative film to be applied for automatically controlling printing works. Inspection and selection of each effective frame of the negative film at the stage of reading are usually performed through a projector (and a screen or through direct visual inspection of the negative film itself by the operator). Detection of effective frames of film at the stage of printing shall be carried out automatically with information marked on the negative film and information for adjustment of the exposure time supplied by the magnetic recording means upon printing. All the data concerning the negative film itself and others are processed in digital fashion.

Abstract: A counting device in a still camera for indicating the exact number of frames of long-footage film exposed during regular photography includes a numerical counter and a drive gear rotatable in response to film movement for increasing the count in the counter by one for each frame of film advance, the drive gear being effective to change the count only after advance of the leader portion of the film. A cam which is incrementally rotated by an escapement mechanism in response to each frame of film advance moves a release lever to a first position for preventing counting during advancement of the leader portion of the film and thereafter to a second position for permitting counting.

Abstract: A photocomposing machine for producing an exposed sheet for use in the preparation of printing plates. An image is positioned on a sheet of sensitized material by having an object mounted on a carrier and driving the carrier until the position of the image is correctly positioned. The accurate positioning of the image is controlled by a grid line counting device which causes the carrier to be halted at a position corresponding to one of the grid lines of the grid line counting device.

Abstract: An electronic camera shutter having a single spring that biases an armature lever in a direction for applying an electromagnet armature supported thereon against the electromagnet until the electromagnet, which is a part of an exposure time control circuit, is energized so that the armature is attracted. This same spring cooperates with a holding lever biasing it in a direction for engaging with the armature lever and driving it in a direction for separating the armature from the electromagnet to initiate closing of the shutter upon de-energization of the electromagnet at the end of the exposure time period controlled by the exposure time control circuit.

Abstract: A photographic camera having a mirror gearing and an electric motor for shutter cocking and film winding, in which the current connection for the electric motor situated in the camera housing is controlled alternately by the shutter and film winding.The camera includes a manual release mechanism and a remote release mechanism. A detent disc is mounted on a shaft and driven by the electric motor. A release lever is also mounted on the shaft. A first blocking lever is provided for inhibiting the movement of the release lever and is connectable both with the manual release and the remote release. A second blocking lever also inhibits the movement of the release lever. A detent lever with a nose thereon engages the detent disc and is connected through a joint with the second blocking lever. An actuator lever is provided for releasing the detent lever from the detent disc and is blockable by a blocking pawl coupled with the mirror gearing. A dog is driven by the motor for tensioning the actuator lever.

Abstract: There is described a decorative lamp fixture having its main components detachably connected to a flat base structure so that the assembly can be disassembled into pieces to allow packing or storage in a small space. The assembly includes chains of decorative elements of a light transmissive or reflective material. The chains of the decorative elements are arranged around an electric lamp in a density suitable for hiding the lamp from direct external view. When the lamp is lit, the light rays are transmitted through or reflected on the surfaces of the chained decorative elements producing splendid optical effects which add beauty to a room or other places.

Abstract: A lighting arrangement on a vehicle, using light from a headlight to illuminate a compartment in the front end of the vehicle when a hood normally closing the compartment is in open position. Light is reflected into the compartment via two mirrors mounted on the inside of the hood.

Abstract: A pivoting exposure control system is provided for a photographic apparatus wherein the exposure control system includes a shutter blade apparatus for respectively blocking and unblocking the passage of light through a light entry exposure opening in a camera housing. The shutter blade mechanism includes two shutter blade elements which are disposed for both pivoting and translational motion about a first fixed pivot point spaced laterally apart from the light entering opening in the camera housing. Rotating means pivotally connect at two spaced-apart locations to the respective shutter blade elements so that the shutter blade elements may be simultaneously rotated about a second pivot point spaced laterally apart from the light entering opening and the first pivot point. In this manner, the shutter blade elements may be simultaneously moved over the light entering exposure opening to define a progressive variation of effective apertures.