Abstract: In one aspect, a light assembly configured to be installed in a movie theatre projector includes an emitter housing with an LED emitter plate that emits a beam of light and a lens assembly. The light assembly also includes a cooling assembly configured to dissipate heat from the LED emitter plate. The a cooling assembly includes a cooling fluid jacket coupled to the LED emitter plate, where the cooling fluid jacket comprises a metal layer enclosing a hollow path for cooling fluid, and where the cooling fluid jacket is configured to allow the cooling fluid to pass through cooling fluid jacket, thereby drawing heat from the LED emitter plate. The light assembly also includes a heat sink and a cooling fan. The cooling assembly further includes cooling sections to cool the cooling fluid that flows out of the cooling fluid jacket.

Abstract: An optical system for immersion underwater in an aquaculture environment. The optical system captures, in situ, digital images of underwater objects such as freely swimming fish such as, for example, sea salmon or sea trout, as the fish swim naturally in the aquaculture environment. The digital images produced by the optical system are of enough quality such that reliable detection of sea lice in different life stages by a human visual inspection of the digital image or by computer vision systems is enabled.

Abstract: In one aspect, a light assembly configured to be installed in a movie theatre projector includes an emitter housing with an LED emitter plate that emits a beam of light and a lens assembly. The light assembly also includes a cooling assembly configured to dissipate heat from the LED emitter plate. The a cooling assembly includes a cooling fluid jacket coupled to the LED emitter plate, where the cooling fluid jacket comprises a metal layer enclosing a hollow path for cooling fluid, and where the cooling fluid jacket is configured to allow the cooling fluid to pass through cooling fluid jacket, thereby drawing heat from the LED emitter plate. The light assembly also includes a heat sink and a cooling fan. The cooling assembly further includes cooling sections to cool the cooling fluid that flows out of the cooling fluid jacket.

Abstract: In one aspect, a light assembly configured to be installed in a movie theatre projector includes an emitter housing with an LED emitter plate that emits a beam of light and a lens assembly. The light assembly also includes a cooling assembly configured to dissipate heat from the LED emitter plate. The a cooling assembly includes a cooling fluid jacket coupled to the LED emitter plate, where the cooling fluid jacket comprises a metal layer enclosing a hollow path for cooling fluid, and where the cooling fluid jacket is configured to allow the cooling fluid to pass through cooling fluid jacket, thereby drawing heat from the LED emitter plate. The light assembly also includes a heat sink and a cooling fan. The cooling assembly further includes cooling sections to cool the cooling fluid that flows out of the cooling fluid jacket.

Abstract: A picture taking device includes at least three camera modules, each having a sensor of resolution equal to or higher than thirteen megapixels. A diagonal of the photosensitive surface of the sensor of between 5 mm and 7 mm. An objective lens opening at minimum to f/2.0 for at least one focal length value. The device has a power supply and, a rigid connector to connect it to a mobile phone or tablet comprising a screen, and communicates images and/or commands with the mobile phone or tablet. The device also includes a digital processor to reduce noise while preserving the textures in at least one image captured by one of the sensors.

Abstract: A laser projector includes a housing, a light source arranged within the housing, and a vibration module arranged within the housing to cause the light source to vibrate in a predetermined range.

Abstract: A fine-adjusting apparatus for an overhead projector has a mounting frame, an assembling device, a pitch-adjusting device, a left-right adjusting device and a connecting mount. The mounting frame is adapted to mount on a wall. The assembling device is detachably connected to the mounting frame and has a sliding mount and a base mount. The sliding mount is slidably mounted in the mounting frame. The base mount is pivotally connected to the sliding mount. The pitch-adjusting device is connected to the assembling device and has a pitching frame, a guiding bar and a pitch-adjusting shaft. The left-right adjusting device is connected to the pitch-adjusting device and has an adjusting frame, a left-right adjusting shaft and a linking element. The connecting mount is pivotally connected to the left-right adjusting device, is used to connect with the overhead projector and has a connecting board, two pivot frames and multiple extending arms.

Abstract: Herein is described an equipment container with an integrated stand comprising a bag with a lid and a base, retractable legs, and a movable post attached to the lid, wherein the retractable legs can be enclosed into the base of the bag, and the movable post is adapted to be stowed for transport or deployed to support a piece of equipment.

Abstract: A short-throw projector and Interactive White Board (IWB) mounting system is presented. The mounting system includes a pair of board mounting brackets, such that a section of the board mounting bracket is positionable a predetermined distance from a mounting surface. The mounting system further includes projector mount bracket wherein a portion of the projector mount bracket is also positionable a predetermined distance from a mounting surface such that a desired distance is maintained between the projector and the IWB when the system is installed over an existing structure.

Abstract: The invention relates to a viewing screen device, including a casing (8, 18), itself including a first portion (18), a so-called front portion, and a second portion (8), a so-called rear portion, the front portion including a rear face (182) and the rear portion including a front face (82, 82?), a portion of this front face forming in the closed position a gap (90) internal to the device, delimited on one of its sides by a surface (80), a so-called connecting surface, including at least one connection (101, 102, 103) of a cable, means (830, 831) for closing or opening the casing, by moving said rear portion (8) away from or closer to said front portion (18), while maintaining both of these portions attached to each other, a side portion (83) of the casing further including at least one opening (101?, 102?, 103?) for letting through at least one cable (14, 14?, 14?) intended to be connected to one of the connections (101, 102, 103).

Abstract: A ceiling mounted lift for a multimedia projector that can be installed into a hollow ceiling. The same is equipped with a frame-shaped base plate (2) that can be fitted to an original ceiling, and with a platform (5) receiving the projector that can be lowered in relation to the base plate (2) from a non-usage position into a usage position. For lowering and lifting the platform (5) lifting spindles (3) that can be driven equally in both rotation directions and co-operatively connected with spindle nuts (4) are provided. The lifting spindles (3) as well as the spindle nuts (4) are equipped with a circular thread, whereby the spindle nuts (4) consist of Nylon thread nuts.

Abstract: A shooting system includes a main body, a recording/reproducing unit, and an interface box. The main body includes a first housing having a plurality of outer surfaces of different orientations. Two different outer surfaces of the first housing provide first and second attachment parts, each attachment part having main-body-side connectors. The recording/reproducing unit has a second housing which constitutes an exterior thereof and provides a recording/reproducing-unit-side attachment part attachable to both the first and second attachment parts. The recording/reproducing-unit-side attachment part provides recording/reproducing-unit-side connectors connectable to the main-body-side connectors. The interface box has a third housing which constitutes an exterior thereof and provides an interface-box-side attachment part attachable to both the first and second attachment part. The interface-box-side attachment part provides interface-box-side connectors connectable to the main-body-side connectors.

Abstract: A multi-functional storage apparatus for selectively supporting a capturing device includes a main casing having a receiving cavity and a supporting arrangement. The supporting arrangement is provided on the main casing to operate the main casing between a normal storing mode and an capturing mode, wherein in the normal storing mode, the supporting arrangement is arranged to rest on the main casing so as to allow the main casing to function as a portable carrying device through storing objects within the receiving cavity, wherein in the capturing mode, the supporting arrangement is selectively extended from the main casing to detachably attach to the image capturing device, in such a manner that the image capturing device is securely and suspendedly supported by the main casing as a supporting base for stably capturing image in a predetermined direction.

Abstract: A multi-functional storage apparatus for selectively supporting a capturing device includes a main casing having a receiving cavity and a supporting arrangement. The supporting arrangement is provided on the main casing to operate the main casing between a normal storing mode and an capturing mode, wherein in the normal storing mode, the supporting arrangement is arranged to rest on the main casing so as to allow the main casing to function as a portable carrying device through storing objects within the receiving cavity, wherein in the capturing mode, the supporting arrangement is selectively extended from the main casing to detachably attach to the image capturing device, in such a manner that the image capturing device is securely and suspendedly supported by the main casing as a supporting base for stably capturing image in a predetermined direction.

Abstract: A multi-functional storage apparatus for selectively supporting a capturing device includes a main casing having a receiving cavity and a supporting arrangement. The supporting arrangement is provided on the main casing to operate the main casing between a normal storing mode and an capturing mode, wherein in the normal storing mode, the supporting arrangement is arranged to rest on the main casing so as to allow the main casing to function as a portable carrying device through storing objects within the receiving cavity, wherein in the capturing mode, the supporting arrangement is selectively extended from the main casing to detachably attach to the image capturing device, in such a manner that the image capturing device is securely and suspendedly supported by the main casing as a supporting base for stably capturing image in a predetermined direction.

Abstract: A shallow water submersible splash housing which is capable of sealing and protecting a camera from an underwater or harsh environment for filming is disclosed. The shallow water submersible splash housing includes an elastomeric transparent enclosure having front and rear ends, a front port assembly closing the front end of the enclosure for supporting the camera and a window provided in the front port assembly. A back plate assembly closes the rear end of the enclosure. The front port assembly may further be provided with iris rods to facilitate mounting of the camera in the enclosure and interior air flow nozzles to maintain positive air pressure in the enclosure as well as prevent fogging of the window in the front port assembly.

Abstract: A doughnut-shaped dust-proof plate is externally fitted in the body of the projection lens. The dust-proof plate comprises a first member which is flexible like rubber and a second member made of plastic which is uneasy to deform. The second member is made lower in a vertical direction (lengthwise) than the first member, thereby making it possible to allow deformation at an upper end and a lower end of the first member. On the other hand, the second member is made long in a horizontal direction (crosswise). A longitudinal portion of the second member is set to have such a length that it can come into contact with an upper or lower wall of the frame of the liquid crystal projector even if the projection lens is positioned at the lowermost or uppermost position, respectively.

Abstract: An adjustable tamper-resistant overhead mounting system for a projector. The system includes brackets attachable to the projector and a suspension member attached to an overhead structure. At least one tamper resistant fastener is used at each connection of the brackets, the projector and the suspension member, to deter theft and tampering. The arrangement of the brackets may enable easy adjustable positioning of the projector about pitch, roll and yaw axes. The projector may also be enclosed in an enclosure system to protect against contact by foreign objects. The enclosure is adapted to be installable without removing the projector or otherwise disturbing the mounting system.

Abstract: A universal adaptor that may be used to hold any of a number of different surveillance cameras for deployment in any of a number of different camera housings or enclosures. The adaptor is in the form of a bi-sectional open-ended generally rectangular assembly designed to snap together around a camera and its associated PC boards encapsulating them into a single unit. The assembly includes a plurality of internal slots for holding up to several PC boards associated with the camera, and optional frontal tabs for heating/defrost elements. The camera lens extends through a wide opening at one end of the adaptor. Ventilation, access and attachment openings are provided on the adaptor allowing access to the interior for adjusting PC board switches, running wires and attaching the unit inside a larger mounting enclosure.

Abstract: A portable image projector is provided with a vertically elongated tower configuration to substantially reduce its vertical footprint when it is placed on a horizontal support surface for use. A stabilizing foot is positioned below the housing portion of the projector and is horizontally pivotable between a retracted orientation in which the foot is disposed within the vertical footprint of the projector housing, and an extended orientation in which the foot projects outwardly beyond opposite sides of the projector housing. The stabilizing foot is pivotally secured to the bottom ends of a spaced pair of arcuate elevating leg members that extend upwardly through openings in the bottom side of the housing. The leg members are vertically movable through the housing openings between retracted and extended positions and are resiliently biased in a downward direction relative to the housing.

Abstract: A projector hanger frame has a hollow square plate having a center hole, a collar disposed on the hollow square plate, a hanger tube passing through the hollow square plate and the collar, the hanger tube having a bottom flange and a positioning aperture, a connection seat engaging with the hollow square plate, a positioning seat engaging with the connection seat, a pair of first extensible plate disposed on a bottom of the positioning seat, and a pair of second extensible plate disposed on a bottom of the positioning seat.

Abstract: A film camera system, includes a housing with a front end carrying an objective, and a housing wall formed with an opening, a film magazine, and a single connecting member having at least one bore for allowing passage of a film from the film magazine into the housing via the housing opening and vice versa. The connecting member is secured to the film magazine and can be so attached to the housing that the film magazine is selectively positionable with respect to the housing in a first position essentially above the housing and in a second position essentially at the rear end of the housing, while providing a light-tight cover for the housing opening in the first and second positions of the film magazine.

Abstract: A surveillance camera assembly has an apparatus (9-15) for providing a rotatable field of view in a plane with a tilted mirror (15) rotatable about an axis normal to the plane, and a window (5) subtending at least a 90.degree. field of view and as much as a substantially continuous 360.degree. field of view in the plane. The window has a plurality of flat, parallel-surfaced panes (6) forming a polygon in the plane, each of the panes (6) having the same trapezoidal shape.

Abstract: A viewgraph projector having a light above the transparency receiver and jecting downward through the transparency is provided. The projected image is received below the transparency by a condenser lens and further transmitted by a flexible fiber-optic cable. A projecting lens is provided at the output end of the fiber-optic cable for projecting the images to a screen. Structurally associated with the projecting lens is a device or means which enables removably affixing the projecting lens relative to a suitable support in a conference room environment, which device may for example constitute a clip, hooking means, clamp, or weights. This enables a subset of the aforesaid elements comprising the light source, transparency receiver, and condenser lens to be located independently of the projecting lens, as for example, to locations where they do not obstruct the audience's field of view or where backscattered illumination from the light source does not annoy the audience.

Abstract: A case for a film camera with a film magazine which can be mounted at various positions. The case comprises at least one opening to allow passage of the film, an insertion holder for receiving essentially diametrically opposed, formed shoulders of the film magazine and comprises a lock for the latter. In order to make it possible to re-mount the film magazine in a simple manner, provision is made that the case comprises only one opening to allow passage of the film. Also, two different receiving parts are provided which can be selectively fastened to the outside of the case for covering a part of the film. Passage opening and which are provided with a clamping device for fixing the film magazine.

Abstract: A surveillance apparatus for installation in such an open ended housing as the air vent structure of a motor vehicle has first and second supports, the first support carries the cover for the housing and is movable between a position in which the outer exposed end of the housing is closed into raised positions. The second support is within the first support and is movable relative thereto and carries a surveillance unit which includes a camera and lens assembly within the housing with the center line of the lens when the cover is closed in the plane of the outer end of the housing. Both supports are shown in the disclosed embodiment, as driven by a reversible drive in a manner such that the second support at all times travels one-half the distance which the first support travels. Desirably and as shown, the surveillance unit includes a pan and tilt assembly on which the camera and lens assembly is mounted. The motors of the surveillance unit and the motor of the reversible drive are remotely controlled.

Abstract: A housing for a surveillance camera protects the camera from damage from projectiles, including small firearms. The housing is generally spherical for reducing wind resistance, and is ballistically rated. The housing is formed of three layers to achieve the ballistic rating while maintaining low weight. A rubber-containing thermoplastic alloy provides the outer surface, an acrylic is intermediate, and ballistic aluminum is the interior layer. The camera is fully rotatable, and a ballistically rated hemisphere rotates with the camera while a clear window allows the camera to see. An outer cover is made of acrylic which may be tinted to conceal the camera window. A blower is mounted within the housing at the top thereof, and the discharge may heat or cool the camera drive motor and the rollers that mount the rotatable hemisphere. To achieve the ballistic rating economically, the inner layer is formed of aluminum, and the inner layer is used as the mold for vacuum forming the outer, thermoplastic, layers.

Abstract: A housing for a surveillance camera protects the camera from damage from projectiles, including small firearms. The housing is generally spherical for reducing wind resistance, and is ballistically rated. The housing is formed of three layers to achieve the ballistic rating while maintaining low weight. A rubber-containing thermoplastic alloy provides the outer surface, an acrylic is intermediate, and ballistic aluminum is the interior layer. The camera is fully rotatable, and a ballistically rated hemisphere rotates with the camera while a clear window allows the camera to see. An outer cover is made of acrylic which may be tinted to conceal the camera window. A blower is mounted within the housing at the top thereof, and the discharge may heat or cool the camera drive motor and the rollers that mount the rotatable hemisphere. To achieve the ballistic rating economically, the inner layer is formed of aluminum, and the inner layer is used as the mold for vacuum forming the outer, thermoplastic, layers.

Abstract: A novel and useful surveillance camera housing assembly is provided. The assembly is easily mounted as a sturdy arrangement as a rectangular section of a suspended ceiling. A pair of side supports of the assembly extend over the cross forming inverted T-shaped ceiling support members which define the rectangular section and rest on the outer edges of each of the inverted T-shaped ceiling supporting members. A bridge spans the side supports from which a surveillance camera mounting depends. A frame with radiating legs is attached to the camera mounting. An inner dome is attached to the frame in a quick detachable relationship. An outer dome with a rectangular base approximating the size of the rectangular section is provided along one edge with horizontally projecting ears for supporting the outer dome between two parallel disposed inverted T-shaped ceiling support members when the outerdome is pivotted downwardly about the horizontal axis of the ear bearing edges of the outer dome.

Abstract: A projector mounting frame is fitted in the space above the suspended ceiling of a room. A traveling frame vertically movable in the mounting frame has means for support of a projector thereon. Drive motor and screws drive the traveling frame vertically so the projector can be driven from a position concealed within the space above the ceiling to a position below the ceiling where it can project onto a wall or screen in the room. A trim frame is hung on the traveling frame under the projector and has ceiling pads or tiles on it matching the rest of the ceiling to neatly close the ceiling opening when the projector is concealed.

Abstract: A video camera is provided with a longitudinally sliding part (5) which in the forward end position forms a protection for the lens (4) and in the rearward end position uncovers the lens. In addition, the eyepiece (9) of the viewfinder is extended to maximum magnification in the rear end position.

Abstract: A rear projection television receiver has an image source, first and second mirrors, and a screen. Light travels from the image source to the screen along a first light path via the first and second mirrors and along a second path that bypasses the mirrors. A light baffle assembly comprising a plurality of elongated baffle elements is located in both the first and second light paths. The angle of the individual baffle elements is adjusted so that light rays are unaffected along the first light path and substantially completely blocked along the second light path.

Abstract: This apparatus deflects away from the lens of a camera dirt and the like, which may be thrown at it. The camera is enclosed within a housing with the lens protruding from the front wall of the housing. A protector plate is fixedly connected to the housing front wall by a plurality of spacers and has an opening in registry with the camera lens. A fan is rotatably mounted intermediate the circular plate and the housing front wall, with its axis of rotation eccentric with respect to the camera lens and the plate opening. The fan includes a plurality of spaced-apart blades movable across the camera lens and spacedly in front of it to deflect away from the lens any dirt particles which might enter the plate opening. The speed of the fan is such that the fan blades will not impair the quality of the image captured by the lens.

Abstract: A viewing system with automatic correction of the reading distance as a function of the inclination of the screen housing. In accordance with the invention, the viewing system comprises a screen housing axially suspended on a U shape base. The screen housing is adjustable by inclination on its axis of suspension. For each inclination two pins carried by the screen housing and sliding in two angled slots carried by the base carry out an automatic correction of the distance separating the operator from the front face of the screen housing.

Abstract: A position compensation mechanism for maintaining a movie camera in focus upon displacement. An inner housing supporting a film gate is resiliently mounted at a predetermined orientation within an outer housing which supports the photographic optics of the movie camera. A position compensator is coupled intermediate the inner and outer housing for maintaining the inner housing at its predetermined orientation with respect to the outer housing when the outer housing is displaced.

Abstract: A video camera tilt and pan head includes a bifurcated support which is free to pivot about a vertical axis for the "pan" action of the video camera. A camera cradle receives the video camera and the cradle is provided with slots and a tie-down bolt such that the camera is adjustable horizontally with respect to the cradle. The cradle is supported on transverse mounting pivots secured in the support. The pivots clamp in vertical cradle slots, enabling the cradle to be adjustable vertically with respect to the pivots. The pivots may be tubular to act as sight tubes to locate the cradle and camera with respect to the desired pivot axes. A tray extends from the cradle to receive weights to counterbalance the extension of the video camera beyond the transverse pivots. The camera exterior is indexed to indicate the point at which the axes of each of the red, green and blue receptors intersect the lens axis of the camera. This point establishes the desired path for tilt and pan axes.

Abstract: A surveillance system for use in apartment buildings, department stores, and the like, wherein one or more fixed scanning, pan, tilt, zoom, and/or programmed cameras are housed within a solid reflective member or globe. The globe is internally coated with a transparent nichrome layer that bonds a layer of highly reflective metal, such as silver, to the globe. A layer of SiO is, in turn, deposited on the silver layer to protect the silver layer and to control the spectral response of the globe. The SiO layer is protected by a plastic coating. Either the plastic coating or the SiO layer is coated with a material, such as black paint, to absorb reflections within the globe. A camera having a lens and a masking disc is positioned within the globe. A portion of the interior, not coated with black paint, defines a window for the lens. Also, disclosed is a process for uniformally metalizing the interior surface of the spherical globe.

Abstract: The apparatus for optical monitoring facility, wherein two circular elements are swivel-mounted at a support section. A television camera is fixed inside the first circular element, whereas the second circular element carries two dummy lenses. The apparatus is installed in a cover by which only the camera lens and the dummy lenses can be seen from the outside. The first circular element can be swivelled by a swivel motor, whereas the second circular element is swivelled in the same way by means of cables. The apparatus can be rotated around its vertically fixing axis by a motor. A control equipment allows the adjustment of the camera lens and of the camera's position. The control equipment comprises a programmable microprocessor in which an observation's sequence can be stored. The apparatus is arranged in such a way that the observation through only one lens cannot be recognized from the outside world.

Abstract: A rear projection viewer apparatus of the type wherein the projected images are initially projected downward towards a mirror mounted in the base of the viewer which redirects the projected images upwardly and forwardly to a viewing screen forming the front of the viewer. Means are provided for removing the mirror element from the downward path of the projected images and an auxiliary viewing screen smaller than the primary screen is disposed in the base of the viewer to receive the projected images thereupon thereby permitting viewing of the images on the smaller screen when the viewer is positioned with its primary viewing screen facing downward.

Abstract: A shield with a body of optically clear flexible material in the basic shape of a rectangle slightly larger than a camera. The body has an elongated side with an elastic enclosure surrounding a round opening through which one's hand may be inserted to manipulate a camera. The front contains a round opening with an attached extension containing a peripherial elastic enclosure that surrounds the lens of the camera making the interface essentially water tight. Openings in the top of the invention provides penetrations through which carrying straps may be contained and the bottom and remaining side are provided with an opening through which a camera may be installed.

Abstract: A panel of a size to be inserted into a section of the hung framework of a suspended ceiling carries a housing, the lower portion of the housing projecting beneath the panel and comprising a tinted, partially transparent cylindrical sidewall closed at its lower end by a hinged, opaque cover. A rotatable bracket is mounted within the housing, and carries an opaque cylinder positioned within the partially transparent cylindrical sidewall, the cylinder having a window therein. A television monitoring camera is also mounted on the bracket, with its lens pointing through the window. A motor for operating the monitoring camera is mounted atop the housing, and the partially transparent cylindrical sidewall and the opaque cylinder cooperate to effectively shield the monitoring camera from view as it is panned over the premises.

Abstract: A programmable viewing system for processing and viewing cassette contained photographic film strips including a chassis defined by a centrally disposed vertical plate-like casting on which all internal viewer components cooperable mechanically and/or optically with the cassette are mounted together with a cassette well by which the cassette may be registered with such viewer components. A programming cam disc is rotatably carried by the casting for controlling both electrical switches for controlling an electronics logic system as well as shiftable viewer component positioning members, one on each side of the casting. The programming cam disc further controls cassette ejection.

Abstract: A motion picture projector is provided with a manually shiftable mode controller assembly for selecting various operational modes and apparatus for the automatic threading and rewinding of film. The operative mechanical components of the projector are mounted on a unitarily molded housing including molded structures and portions that independently and cooperatively with other control assemblies and interfitting structures provide features and improved operational characteristics. The molded housing interfits with a take-up reel cover, a control assembly cover and a rear cover that rotatably engages a carrying handle. Structure to define a film path, an automatic threading assist structure, a film speed detent structure and a position defining structure for the mode controller assembly are also provided by and integrally molded with the housing.

Abstract: A motion picture camera has a plurality of openings where a film cartridge may be selectively mounted, the film passing through the selected opening into engagement with the film drive apparatus of the camera and back to the cartridge. The various openings provide for better balance with various support arrangements for the camera, such as on the shoulder or on a tripod.

Abstract: A surveillance television camera on pan and tilt mountings is concealed in a housing which has dummy lenses arranged to suggest that the camera has all-round vision. The housing also has at least one shiny window through which the camera can view. Behind the window the camera and its surroundings are matt black so that the orientation of the camera cannot be seen from outside the housing.

Abstract: A submersible camera having a waterproof housing has a plurality of magnetically operated switches for controlling normal shutter operation, self-locking operation and zoom functions. The camera is electrically operated with the electrical operating mechanism interconnected with the magnetically controlled switches. The switches do not penetrate the housing and provide simple and reliable control of the camera.

Abstract: A compact self-blimped motion picture camera is achieved by mounting all drive train components on a mounting frame which together with a truncated conical lens support floats within the camera body. The lens support includes a forward annular lens mount and a generally cylindrical section the rear end of which is affixed to the mounting frame. The lens support is truncated in a 45.degree. plane that intersects the cylinder periphery just rearward of the lens mount and intersects the lens support rear end plane in a line that crosses the cylindrical axis. A rotating shutter and mirror assembly includes a sector-shaped mirror that rotates in a plane immediately behind the lens support truncation plane. Noise is minimized by using only belt and pulley drive components and only sleeve bearings.

Abstract: A spherical shell mounted on a base for pivoting movement about a diameter has a first aperture in which a frosted groundglass screen is mounted parallel to the pivot axis. Images are sequentially projected on the screen from the vertically upright beam of a cassette-type sound projector by a deflecting mirror. Cassettes are inserted in and withdrawn from the projector through a second aperture subjacent the first aperture. The perforated cover normally closing the second aperture carries the loudspeaker of the sound system. Cooling air is blown on the projector lamp from bottom openings of the shell by a fan arranged between the shell and a bracket on which the projector rests.