Abstract: A borderless printing easel comprised of a paper support base having a retaining border formed thereon, and a set of flat sectioned mask plates removably positionable on the base portion, the individual sections of said mask plate being hinged at their center by a pliable strip of adhesive material whereby the mask sections can be successively folded back onto the top of opposing mask sections to reproduce adjacent or nearly adjacent borderless prints on a single sheet of print paper.

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: The specification describes a roll up cine projection screen comprising struts for holding it taut in the extended condition for use. It is adapted to be held on a rolling up rod or a tubular casing on a carrier and in the case of which the struts are adapted to pivot with the cine projection screen held taut by them about a horizontal axis. The screen can be secured in several angular positions by means of two pivot bearings having vertical and horizontal axis respectively.

Abstract: A single lens reflex camera includes an interchangeable objective lens provided with a diaphragm adjusting ring having a drive element and an interchangeable view finder unit housing a light responsive exposure determining means including a follower movable with a varying parameter of the means between a retracted position and a resiliently urged advanced position. A blocking element is normally locked in a position projecting from the unit and preventing the mounting of the finder, and when the follower is released, the blocking element is retractable. The follower is locked in its retracted position and when the finder is mounted the follower is released for movement into operative engagement with the drive element.

Abstract: A front projection screen is disclosed which is made from a transparent material. Prism-like elements are formed on the backside thereof so that light incident upon the screen from a preferred direction will be totally reflected by the screen while light incident upon the screen from other directions will pass therethrough. Sides of the prism-like elements are curved for dispersion in the horizontal plane while the front surface of the projection screen has segments of cylindrical columns formed thereon perpendicular to the prism-like elements to provide an angular spread in the vertical plane. The thickness of the screen is between 30 percent and 70 percent of the focal length of the cylindrical columns to allow the screen to be tilted in the vertical plane.

Abstract: A new design lamps in which two lamp bulbs are contained, and either only one or both lamps can be turned on, as wished; the lamp including a novel switch consisting of a pair of circular disks mounted on a rotatable cylinder from opposite ends of which the two lamp bulbs protrude, and each disk has radial extending contacts for selectively engaging a pair of stationary contacts on a base of the lamp housing.

Abstract: A single lens reflex camera houses a battery magazine which is disposed outside the swing path of the camera mirror and is accessible through the mount opening for an interchangeable objective. A cover is swingable between magazine open and closed positions along a path intercepting the mirror swing path and an interlock mechanism locks the cover in closed position when the mirror is in its viewing position and in one form locks the mirror in its photographing position when the cover is in open position.

Abstract: A carrying strap attachment for a camera including couplers pivotally attached thereto to provide movement between a first operative position, in which the couplers engage opposite sides of a first movable section, and a second inoperative position in which the couplers are out of securing relation with the first movable section. The strap attachment may be detached from the camera by manually moving the couplers from the first to the second position or automatically detached by a cam action provided by engagement of the couplers with a second section of the camera when the camera is moved from an extended to a folded position. The couplers are pivotally connected to a support and a resilient member operated to resiliently bias the couplers into the first position wherein the camera is securely transported in an extended operative position instantly available for use.

Abstract: A manually operable mirror swing-up lever is associated with an exposure information memorizing device. The exposure information memorizing device has a locking lever which locks a sliding contact movable on a variable resistor at a position representing the exposure information. The variable resistor is connected in parallel with a memory capacitor in an electric circuit for controlling an electric shutter. The terminal voltage of the variable resistor is controlled to be equivalent to the terminal voltage of the memory capacitor. When the mirror is swung up by the manually operable mirror swing-up lever, the sliding contact is locked in position to make the variable resistor work as an equivalent for the capacitor, and the resistor is substituted for the memory capacitor.

Abstract: A beauty swag lamp comprised of a frame having a top, bottom, and at least one side wall. The frame also has at least one movable door wall. The frame forms a compartment and at least one mirror is within the compartment. When the door wall is open the interior compartment and mirror are exposed for use. A light means is positioned within at least one wall to emit light outwardly from the frame when the door wall is closed.

Abstract: A viewfinder assembly for a camera having a door for access to the interior wherein the viewfinder, when properly positioned to permit pictures to be taken, blocks the door. The assembly comprises a support barrel mounted on a camera lens and a main body section adapted to support optical elements therein. An eyepiece is at one end of the main body section and extends outwardly therefrom. The invention includes mounting means for rotatably mounting the main body section on the support barrel to permit rotation of the viewfinder assembly to a position wherein the door is no longer blocked.