Patent
Ceiling-mounted projection system
Mervin Perkins,Eric John Perkins,Lawrence Alexander Duarte,Kenneth Allen Bowers +3 more
- 05 Oct 2004
11
TL;DR: In this article, a ceiling-mounted projection system has a projector mounted above the ceiling, and a periscope assembly that can be moved by a motor along a vertical axis between a raised position in which the perisope assembly is retracted into the ceiling and a lowered position where the lower portion of the periso-camera extends below the ceiling.
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Abstract: A ceiling-mounted projection system has a projector mounted above the ceiling, and a periscope assembly that can be moved by a motor along a vertical axis between a raised position in which the periscope assembly is retracted into the ceiling and a lowered position in which the lower portion of the periscope assembly extends below the ceiling. An upper mirror is mounted on the upper portion of the periscope assembly and aligned to reflect images from the projector in a downward direction when the periscope assembly is in the lowered position. A lower mirror is mounted on the lower portion of the periscope assembly and aligned to reflect the images from the upper mirror onto a viewing surface when the periscope assembly is in the lowered position.
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Citations
Patent
Adjustable projector mount
Jay Dittmer,Paul Smith +1 more
- 12 Jan 2011
TL;DR: In this article, the authors propose a mounting system for attaching a projection device to an overhead structure that includes a device interface operably attachable to the projection device and a device orientation adjustment structure operably coupled with the device interface.
40
Patent
Systems, methods and computer program products for processing of coverings such as leather hides and fabrics for furniture and other products
Robert Leroy Campbell,Charles Anthony Leonard,Robert Lee Miller +2 more
- 23 Oct 2012
TL;DR: In this article, a system for processing coverings can include a conveyor having a surface on which a covering can be placed and being rotatable to move the covering in at least one direction.
22
Patent
Projection-type image display device and projection-type image display system
Ryuhei Amano,Takashi Miwa,Yoshihiro Yokote +2 more
- 28 Sep 2007
TL;DR: A projection-type image display device includes an image light generator configured to generate image light, a projection optics configured to project the image light onto a screen, the projection optics includes a reflection mirror configured to reflect image light toward the screen as discussed by the authors.
17
Patent
Apparatus and method to display images from projection device mounted in vertical position
Art Ozaki,Guillou Jean-Pierre +1 more
- 09 Sep 2005
TL;DR: In this article, an image deflection device is used to position a mirror in front of the projection lens to deflect the video image away from the optical axis of the lens, thereby allowing the projector to be mounted without the lens facing the projection surface.
11
Patent
Projection lens and projector
Kuroda Yasuto
- 21 Mar 2019
TL;DR: In this article, a U-shaped optical path is formed by the first and second optical systems by aligning an emission-side and an incidence-side optical axis of the second optical system.
10
References
Patent
Projector ceiling lift
Charles E Huffman
- 30 Sep 1991
TL;DR: In this article, a ceiling mounted lifting device is provided for concealing, supporting and providing floor level access to audio visual objects such as color video/data projectors, which is extremely shallow to allow the device to be mounted and concealed within the ceiling clearance area.
69
Patent
Device for displaying moving images in the background of a stage
Maass Uwe
- 31 Aug 1996
TL;DR: In this article, an article such as a motor vehicle at a publicity function is represented in front of different viewers in the background of a stage (28) in the form of a virtual image (26).
51
Patent
Aircraft video projection system
James H. Gradin
- 26 Apr 1985
TL;DR: In this paper, a video projection system suitable for mounting in the ceiling of an aircraft for displaying video images for passengers embarked on the aircraft is presented, which includes a video projector, a light deflector, and a projection screen.
37
Patent
Overhead projector mount system
Steven E. Enochs,Robert D. Wilson +1 more
- 20 Jun 2000
TL;DR: An overhead projector mounting system is provided that is configured to support a projector in a ceiling of a room as mentioned in this paper, which includes a housing having an opening through which an image generated by the projector is transmitted.
27
Patent
Back-projection display system and method for making a back-projection mirror
Daniel Kaplan,Jean-Claude Lehureau +1 more
- 29 Nov 1990
TL;DR: Back-projection display systems include a screen which can be moved away from or, conversely, placed up against a support such as a wall, for example a projector located at some distance away, on the ceiling for example, illuminates a backprojection mirror located at 45° in relation to the illumination beam.
20