The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 1981
Filed:
May. 02, 1979
Jaan Jurisson, Anoka County, MN (US);
Aida S Khalafalla, Hennepin County, MN (US);
Honeywell Inc., Minneapolis, MN (US);
Abstract
A three-dimension or stereo television viewing system is disclosed which multiplexes alternate left-right image presentations from two television cameras which are separated horizontally and aimed so that their optical axes intersect. One field of the standard interlace frame is selected from the left-hand camera and multiplexed but the alternate field from the right-hand camera with the multiplexed video frame being displayed on the standard television monitor. An electrically controlled viewer is provided for each user which employs electro-optic shutter lenses which are caused to switched in synchronisims with the alternating television fields. Direct connection between the viewers and the rest of the system is eliminated by the provision of a photoemitting and photodetection system in which coded pulses from the photoemitters are utilized by the photo detectors to operate the lenses of the stereo viewers in synchronism with the TV fields. Provision is made for the condition when no photo signal is received such that the lenses are in the open or transparent state.