Abstract: An apparatus for visually indicating attitude of an aircraft in flight is disclosed. The apparatus includes an aircraft model, a cross-shaped LED lamp, a dome filled with damping fluid, a vertical tube, an earth model, and a laser pointer. The apparatus is installable into a cockpit of an aircraft and allows a pilot of the aircraft to see the flight attitude of the aircraft indirectly through the apparatus. Particularly, the apparatus is used under emergency conditions, such as when the internal attitude instrument is out of order and the external environment cannot be effectively visualized. Thus, the apparatus provides a safety guarantee in situations of manual flight in low visibility.

Abstract: The present invention relates to a collapsible virtual reality viewer. Aspects of the viewer include a body portion and a viewing portion, each having a plurality of panels abutting fold lines. The viewer may be folded along the fold lines to move from an expanded configuration to a collapsed configuration when it is not being used. In one aspect, the viewer includes a detachable portion in which a detachable panel is removeably coupled to the viewer along a plurality of perforations. Promotional material may be printed on or attached to the detachable panel. In another embodiment, the viewer is of a unitary construction in which the panels of the body portion and the panels of the viewing portion are die cut from a single piece of material and folded along fold lines to form the viewer.

Abstract: An apparatus for watching movies in 3D having a belt feeding 3D volumetric objects comprising singular sequences for viewing a movie strip in 3D and thus eliminating the need for wearing 3D glasses to enjoy a movie in three dimensions.

Abstract: A solar light assembly including an expandable bladder and a solar rechargeable light assembly.

Abstract: There is provided a planar lighting device which can emit light with high light use efficiency and small luminance unevenness. This object is achieved by having a light guide plate including two or more layers overlapping in a direction perpendicular to a light exit surface and having different particle concentrations of the scattering particles, thicknesses of the layers in the direction perpendicular to the light exit surface varying so that a combined particle concentration has, in a direction perpendicular to a light incidence surface, a first local maximum value closer to the light incidence surface and a second local maximum value located farther from the light incidence surface than the first local maximum value and being larger than the first local maximum value; and a micro-lens film having a plurality of spherical micro-ball lenses formed on a film.

Abstract: A promotional viewer includes a generally rectangular housing which can be engaged to an enclosure containing a recorded entertainment piece, or may be formed as an integral part thereof. The front surface of the viewer is provided with viewing apertures aligned over a portion of a continuous film loop mounted on turning rollers within the housing and illuminated by ambient light collected by a mirror in a lateral opening in the housing. To shield the other ambient illumination paths each of the viewing apertures may be provided with erectable shields.

Abstract: A promotional viewer includes a generally rectangular housing which can be engaged to an enclosure containing a recorded entertainment piece, or may be formed as an integral part thereof. The front surface of the viewer is provided with viewing apertures aligned over a portion of a continuous film loop mounted on turning rollers within the housing and illuminated by ambient light collected by a mirror in a lateral opening in the housing. To shield the other ambient illumination paths each of the viewing apertures may be provided with erectable shields.

Abstract: A key ring includes a transparent glass plate and a light-emitting diode (LED) circuit board assembly capable of indicating an in-coming call, both of which being mounted in and between two covers, such that light-emitting diodes on the LED circuit board assembly are located immediately behind the glass plate. The light emitting diodes intermittently emit light beams when there is an in-coming call or a switch on the LED circuit board assembly is actuated, and the emitted light beams are directly projected onto the glass plate to shine and highlight patterns, words, zodiac signs or company names preformed on the glass plate.

Abstract: A manually operated toy film viewer of simple design for viewing an 8 millimeter film loop contained within the housing of the viewer. In operating the toy film viewer, the loop of 8 millimeter film is controllably moved past a viewing aperture by a manual crank handle which is rotatably connected to one side of the hollow housing. The apparatus includes a feed sprocket, a spring biased shutter, a simple optical lens and a translucent screen disposed within a small window which is located opposite the viewing aperture and in close proximity with the film loop. Both the drive sprocket and the shutter of the film viewer are operated by the hand crank which car be easily manipulated by the child to controllably advance the film past the viewing aperture.

Abstract: A film viewer into which is loaded a cartridge which has a spool for taking up a film, a door provided at a film entrance/exit, and an engagement shaft for opening and closing the door, the film viewer being used to view a film which is wound on the spool and removed from the cartridge, the film viewer including: a cartridge accommodating portion which accommodates the cartridge; a rotating shaft provided in the cartridge accommodating portion and engaging the spool when the cartridge is accommodated into the cartridge accommodating portion; a film accommodating portion which accommodates the film removed from the cartridge; and a window portion provided between the cartridge accommodating portion and the film accommodating portion, the film being viewable through the window portion.

Abstract: A filmstrip viewer is provided for viewing positive or negative images on filmstrips contained in so-called thrust film cartridges. The viewer has a film drive for advancing film from the thrust cartridge to a take-up spool for selectively advancing frame images into a frame viewing station for direct or projection viewing. Natural, or artificial illumination may be provided. Optional motorized or manual drives may be used to provide film advance and rewind functions. An interlocked loading door can prevent attempted removal of a cartridge prior to full rewinding of the filmstrip and, optionally, require a specific spool parking orientation prior to opening of the loading door.

Abstract: A film viewer for viewing a film which has been withdrawn from a cartridge. Its main body has a cartridge accommodating portion. In the film viewer, a rotating shaft connected to a spool of the cartridge and a winding shaft which winds the film are driven by manual operation or a motor to convey the film. A window portion is provided at the main body for viewing the conveyed film guided by a film guide made of a flexible material. The film viewer has a distinguishing piece or sensor for distinguishing whether or not the film has been developed.

Abstract: An apparatus for accurately, efficiently, and consistently aligning a tabbing strip with the edges of the photographic print to which it is to be applied. The apparatus comprises a support panel, a tabbing strip registration guide, a photographic print registration guide, a clamping member including a linear clamp bar, and a spring for pivotally mounting the clamping member to the support panel. The present invention further provides a method of using the apparatus for accurately, efficiently, and consistently aligning a tabbing strip with the edges of the photographic print to which it is to be applied.

Abstract: An educational toy for familiarizing young people or children with different geographic areas of the world. The educational toy comprises a rotatable world globe on which is mounted a carrier at least partially encircling the globe along a meridian thereof. The carrier supports a film strip containing longitudinally spaced images of selected geographic areas of the globe. In addition, a viewer is slidably mounted on the carrier, and is slidably movable thereon to a selected position of latitude on the globe in which the viewer is substantially in register with a plurality of images on the carrier of a selected geographic area. Indicia on a light transmitting spot on a geographic area of the globe that corresponds to the images of the selected geographic area is movable by manual rotation of the globe into register with the viewer. The viewer is adjusted to view the indicia and then images of the selected geographic area on the film strip are moved into register with the viewer.

Abstract: A miniature movie projector for viewing a continuous loop movie film in ambient light is disclosed. A hand operated spring mechanism moves the continuous loop movie film such that ambient light entering the projector enables the movie to be viewed. The projector is constructed such that it can be worn as a pendant.

Abstract: A compact, handheld viewer adapted for use with photographic transparencies which are located within a film cassette in roll form, in a strip containing a plurality of individual scenes, or individually mounted transparencies. The viewer includes a manually operable drive system for selectively driving either a film take-up reel, for withdrawing film from a film cassette and advancing it through a projection station, or a film spool for rewinding the film into the film cassette.

Abstract: A toy television receiver has a light-diffusing screen curved about a small light bulb, approximating a punctiform source of radiation, which transluminates a transparent carrier of positive images such as an endless film strip or a string of slides. The carrier can be manually advanced by being mounted on one or two reels or on a drum rotatable with the aid of a knurled wheel, which projects from the housing of the device, or by being juxtaposed with an externally manipulable pressure roller.

Abstract: Diapositives are mounted in a strip formed by a pair of flexible sheet members each having at least two picture openings therein in side-by-side relationship and the sheet members are fastened to each other in face-to-face relationship mutually offset by a single picture opening. The frame is interposed between the sheet members and a diapositive is moveably positioned within an opening in the frame. The thickness of the frame is greater than that of the diapositive so that a diapositive is freely moveable within a frame opening and has play between the sheet members. An apparatus for projecting the strip mounted diapositives is provided with a pair of cassettes one of which contains a strip in which the diapositives are mounted and the second cassette contains a strip without any diapositives. The ends of the strips are automatically connected to each other for successively introducing the diapositives into the apparatus.

Abstract: A holder for securing in position a plurality of slides to enable a composite photograph thereof to be taken, for example for cataloguing a slide library. The holder comprises planar base and secondary frames to receive on their surfaces the slides to be photographed. The frames are provided with transparent sections beneath the areas to be covered by the film portions of the slides when mounted on them, the transparent sections of one frame being aligned with the transparent sections of the other when the frames are mounted in operative position. In this manner the entire film portion of each slide is exposed to the photographic means. In a preferred form of the invention, the slides are mounted on the frame so that the opaque edge portions of the slides on one of the frames overlap opaque edge portions of slides on the other frame, thereby increasing the number of slides which may be included in the composite photograph.

Abstract: A finger ring is provided with an endless strip of film held in a track formed within the ring. The ring includes a lens for viewing the film, a light transmitting system to apply light to the film and a film advance mechanism for moving the film a predetermined distance each time the advance mechanism is actuated.

Abstract: A hand-held transparency projector includes a housing having a recess formed in the housing for carrying a film cartridge, and a projection aperture in one end of the housing through which the images on the film in the cartridge may be projected. The housing carries a film-driving mechanism for advancing the film within the cartridge past the projection aperture when the cartridge is carried within the recess of the projector. The film-driving mechanism includes a claw mounted for slidable forward and return movements within the housing, the claw engaging perforations in the film at the end of the forward movement and advancing the film during the return movement in discrete steps of one frame.

Abstract: A compact film viewer for film strips of various sizes including a removable channel guide with a central opening disposed transverse a case between a light source and a lens and a film channel interchangeably received in the channel guide for slidably receiving film strips. The film channel is sized for a particular film and has a central opening corresponding to film frame size to prevent passage of excess light from the light source to the lens when viewing the film.

Abstract: The present invention provides a training aid and method that produces restic colored images of targets, as seen through a thermal viewer, using black and white video or photographic techniques with filters and light modulators.

Abstract: A collapsible optical viewer is comprised of a front wall having a light-admitting opening therein; a rear wall assembly having a coincident viewing aperture therein; top and bottom walls contiguous with the front and rear walls; and, side walls, one of which includes a continuous extension for forming a channel proximate the front wall whereby a photographic film strip may be received therein. A blank suitable for assembling the viewer is also described.

Abstract: A viewer for the successive viewing of a number of transparent images, comprising a casing with a viewing aperture provided with a lens and a counter-aperture aligned therewith which apertures are formed in two opposite faces of the casing, and further comprising a carrier which is detachably fitted in the casing and which supports a number of images in such a way that they are visible from both sides of the carrier, which carrier can be advanced by means of an advancing member that is connected movably to the casing and that is operated manually. The carrier comprises a strip-shaped slide which can move lengthwise through the casing by operating the advancing member and which is provided with means for detachably fixing a film strip thereon.

Abstract: A relatively compact, inexpensive and portable viewer for reading photogric reductions, such as microfiche film cards, includes a cylindrical translucent diffuser tube which provides for entry of sufficient light under usual ambient conditions for viewing the film; a transparent cylindrical mounting tube axially centered within the diffuser tube; and a slide tube axially and longitudinally movable, by hand operation, within the transparent mounting tube. The slide tube forms an optical path comprising a rectangular opening in its wall near one of its ends which acts as a film gate, a reflecting mirror positioned in line with the wall opening, a magnification lens and an eyepiece lens. The film is inserted in the cylindrical gap formed between the diffuser tube and the mounting tube and the slide tube is moved so that the desired portion of the film may be viewed, enlarged and read.

Abstract: A viewer for a strip of film includes a support that has a space adjacent one end thereof for a rolled-up strip of film and a space adjacent the other end thereof for that rolled-up strip of film, has resilient film guides adjacent those spaces to hold that rolled-up strip of film, has a light-diffusing element, and has a film-moving element. That viewer also includes a walled cover which is selectively engageable with that support; but that support is able to receive and hold and move that strip of film while that walled cover is remote from that support. The resulting full and free accessability of the film-holding elements on the support facilitates quick and certain positioning of the film strip within the viewer.