Optics: image projectors – With or for vehicle
Patent
1995-10-04
1996-08-20
Dowling, William
Optics: image projectors
With or for vehicle
359443, G03B 2100
Patent
active
055483569
ABSTRACT:
A screen for an aircraft video projection system. The screen includes a frame for attachment to an aircraft cabin surface and cylindrically shaped first and second pulleys rotatably mounted to the frame. In addition, the first and second pulleys are oriented substantially parallel relative to each other and the first pulley includes an interior hollow. The screen further includes a belt having a viewing surface and an indexing hole adjacent to the viewing surface. The belt is positioned in contact around the first and second pulleys and is moveable between a viewing position in which the viewing surface is exposed for display of the projected image and a stored position in which the viewing surface is hidden. The belt also serves as a heat absorbing layer. A light sensor is positioned opposite the belt. The light sensor serves to detect the presence of the indexing hole. In particular, if the indexing hole is positioned opposite the sensor, the sensor indicates that the viewing surface is exposed. Further, if the indexing hole is not positioned opposite the indexing hole, the sensor indicates that the viewing surface is hidden. In addition, the screen includes a gearmotor affixed within the hollow. The gearmotor serves to rotate the first pulley to move the belt to the viewing position upon detection that the viewing surface is hidden, wherein the gearmotor is affixed within the hollow.
REFERENCES:
patent: 1218979 (1917-03-01), Cahill
patent: 1864946 (1932-06-01), Schrago
patent: 2491184 (1949-12-01), Joss
patent: 3198066 (1965-08-01), McGhee
Panasonic Panaboard, Electronic Print Board, Operating Guide, KX-B555E, Panasonic Communications & Systems Company, Secaucus, New Jersey.
Itoh Power Moller.RTM., KYC Machine Industry Co., Ltd., Interroll Corporation, Happauge, New York.
Honeywell Optoelectronics Data Book, Ussery Printing Co., Inc., Dallas, Texas, p. i, p. iii, p. viii, p. x, and p. 37.
Dowling William
Miller Jerry A.
Musacchio Pasquale
Sony Corporation
Sony Transcom Inc.
LandOfFree
Automatic video projection screen does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic video projection screen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic video projection screen will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2333602