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5408282 |
Projection system for projection TV set
A rear projection television set is disclosed which includes a screen assembly, a reflector mirror located behind the screen assembly, and a projection source having a lens system for projecting...
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5347324 |
Video projector with battery and replaceable lamp unit
The present invention permits easy and safe replacement of a lamp, improves stability of a video projector, and provides a compact and lightweight video projector. A projector driving battery is...
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5289287 |
Dockable LCD TV projector convertable between front and rear projection
A projection television system which adapts automatically between from screen projection and rear screen projection upon insertion of the projector into a rear screen cabinet. A compact projection...
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5278595 |
Liquid crystal type rear-projection television with a reduced cabinet depth
A liquid crystal projector is obliquely disposed in a lower front portion of a cabinet. A first mirror for reflecting light beams of R, G and B coming from the liquid crystal projector is disposed...
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5235362 |
Slide projector for wall projection and groundglass plate projection
A slide projector which is suitable for both wall projection and ground-glass plate projection has a displacement means carrying a deflection mirror system and a ground-glass plate. The...
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5223869 |
Projector
A projector suitable for a rear projection type receiver is disclosed. The projector has a device for generating an image and an image projecting device for projecting the image to a screen. The...
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5208620 |
Display apparatus
A display apparatus comprises a projecting device for projecting an image, with the projecting device having a projection optical system having a limited pupil diameter and screen device arranged...
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5090800 |
Projector having a liquid crystal display panel
On the outside of a body of a projector, an LCD is provided for displaying an image. A lamp is incorporated in the projector body for illuminating from the rear an image displayed on the LCD. A...
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RE33795 |
Rear projection apparatus
The present invention consists in a rear image projection apparatus having a transmissive screen of high efficiency and low moire disturbance. In particular, the screen comprises a Fresnel sheet...
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5080480 |
Microfilm map reader
A microfilm map reader is provided and consists of a housing removably attachable to a sun visor of a motor vehicle. A collapsible microfilm slide projector is built into the housing and has an...
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4978216 |
Figure with back projected image using fiber optics
A figure is disclosed having a head with a back projected image to animate the facial expression of the figure. The image is back projected onto the head's face by a wide angle lens inside the head...
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4978215 |
Image projecting system
An image projecting system for irradiating a microfilm with light emitted from a light source and projecting an image recorded on the microfilm onto an image receptor such as a screen or a...
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4963016 |
Compact rear-projection system with obliquely incident light beam
The volume of the housing of a rear-projection system can be reduced by 20 to 25% when the light beam is obliquely incident on the projection screen. The obliquely incident light beam is deflected...
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4961642 |
Projection type display device for monitoring at short distance
The present invention relates to a projection type display device wherein images based on light projected form a projection source are formed on a screen. The screen is composed of two Fresnel...
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4893540 |
Display apparatus for visually impaired persons
An apparatus and a method for displaying visual information such as music to persons having visual deficiencies includes a housing having a rear projection screen and a mechanism for projecting...
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4859053 |
Projecting apparatus with spherical screen, more particularly for advertising purposes
A screen-forming sphere is made of a front translucent half-sphere and of a rear half-sphere which is opaque except in a central region. An image projector is situated behind the screen and has a...
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4842402 |
Projection and viewing apparatus
A projection and viewing apparatus having a hollow housing with an open top and front and back walls is also provided with an optical system carriage which is mounted within the housing for...
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4756615 |
Portable folding microform reader
A portable microform reader 10 comprising a foldable frame 12. The frame includes a view screen 14 and a microform holder 18. A microform 38 is illuminated by a light package 80 and an image of a...
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4630908 |
Audio-visual tunnel with endless conveyor
The invention pertains to a large tunnel enclosure including a main cylindrical corridor and a conveyor-belt-driven bottom floor. The main corridor comprises an inner wall being almost totally...
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4303946 |
Video stand and method of exhibiting informational programs
A video exhibit stand and method of exhibiting informational programs comprises a housing having a plurality of large and small openings therein and arranged around the periphery thereof. A...
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4281353 |
Apparatus for projecting enlarged video images
An apparatus is provided for receiving the inverted video image of a television set and for enlarging and projecting this image onto a suitable display surface. An adjustable concave mirror,...
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4268135 |
Image focusing apparatus
An image focusing apparatus for microfiche film readers and other optical systems has a lens holding apparatus which rests on a transparent or glass plate, a rotatable lens adjusting assembly in...
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4261657 |
Optical display device
An optical display device for creating the illusion of an object floating in space comprises a lens means having the optical properties of a convex lens, a housing for supporting the lens and an...
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4240721 |
Cooking with recipes through improved viewing machine or wall screen projection
A projector into which are placed slides having various cooking recipes imprinted thereupon, and the invention including a screen, upon which the recipe is projected greatly enlarged, so that a...
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4240722 |
Information data microfilm projector for vehicles
A microfilm projector installed in the dashboard or instrument panel of a vehicle such as an automobile, a boat, an aircraft, and the like, comprising a rear projection screen mounted in a cut-out...
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4231067 |
Television image projection apparatus
Apparatus for supporting a television receiver housing and projecting an image from the face of the picture tube to a remote, reflective screen having dimensions significantly larger than the...
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4208109 |
Selective real estate display systems
A selective Real Estate Display System including an enclosure which may be provided within a real estate office or in a separate structure adjacent to a real estate office, a slide projector, in...
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4183634 |
Rear projection viewer having small auxiliary screen
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...
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4139283 |
Rear projection viewer having automatically erecting auxiliary screen
A rear projection viewer apparatus of the type wherein a projected image is projected towards a primary viewing screen which when in its operative viewing position forms the front of the viewer,...
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4082440 |
Compact microform reader
A portable microform reader is provided with a microform carrier and a projection system for projecting an enlarged real image of the information carried on a portion of the microform onto a...
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4050799 |
Microform reader
The disclosure relates to a microform reader apparatus of the type which projects a magnified image of an image film frame onto the rear side of a viewing screen to facilitate forward viewing of...
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3975080 |
Portable holographic information retrieval system with an active screen
A portable holographic information retrieval system is described in which individual holograms each of which contains the alphanumeric information from an individual page of a book, are...
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3951543 |
Manually operated reader-printer
A system for providing a standard microfiche or similar reader with the capacity for making prints of the projected material without substantially modifying the reader is disclosed. A screen...
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3950086 |
Dental light reflector and visual-audio analgesic assembly
A dental light reflector and visual-audio analgesic assembly having a housing including a display screen upon which a selected film is projected and/or displayed. A reflector device is mounted...
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3907418 |
Frame shifting device for a reader-printer for a microfilm
A device comprising a mechanism for automatically rotating an image rotating prism conjointly with the movement of a movable reflector adapted to move between a first position in which a picture of...
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3887275 |
Automatic slide music stand
An automatic slide music stand including a cabinet having a compartment in the top portion thereof and holding therein a slide projector, the top of the cabinet having a projection screen formed...
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3801199 |
IMAGE PROJECTION SYSTEM WITH FILMSTRIP CASSETTE
An image projection system with fiber optics pivotally mounted to engage a filmstrip cassette in a light coupling position is described. A film engagement mechanism for advancing the filmstrip is...
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3789140 |
TILTABLE DISPLAY SCREEN ASSEMBLY
A chassis is secured to the cabinet of television apparatus for manually tilting the primary image screen of the tube about a horizontal first axis disposed slightly behind the screen. Manual...
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3761169 |
MULTIPOSITION REAR PROJECTION DISPLAY APPARATUS
A 48 character, 24 lamp rear projection, incandescent lamp powered display unit. The unit utilizes a flat movable mask incorporating the 48 characters to be displayed and a unique optical system to...
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3690753 |
DATA STORAGE SYSTEM
An apertured frame including side and bottom tab sections for holding a microfilm data sheet for filing with others and for use individually in combination with a microfilm reader having a...
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3673787 |
DIGITAL CLOCK MECHANISM
A digital read-out display type of electric clock or alarm clock uses back projection of light as a means of displaying numerals representing the time in hours, minutes, and seconds upon a front...
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3658415 |
OFF AXIS LOW VOLUME MICROFORM PROJECTOR
A compact film projector in which a wide angle lens is used for focusing the object on a screen, but considerably less than all of the available wide angle lens field is used. The cubic volume of...
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3627241 |
PROJECTED IMAGE VIEWER SUPPORT
A support for a projected image viewing apparatus of the kind having a scn which displays an image projected thereon for viewing by an observer, is respectively provided with mechanisms for...
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3586432 |
SELF-CONTAINED IMAGE PROJECTING APPARATUS AND REAR PROJECTION SCREEN THEREFOR
Image projecting apparatus comprising a translucent rear projection screen for receiving projected images on the rear side thereof and for presenting the images for observation on the front side...
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3535030 |
DISPLAY DEVICE
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3507570 |
COMPOSITE OPTICAL DISPLAY SYSTEM
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3502406 |
PROJECTION READER
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3457010 |
DATA RETRIEVAL SYSTEM
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3421813 |
TRAVELING PROJECTION LIGHT VIEWER MEANS
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3302513 |
Lexicon indexing machine
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