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:
Mar. 04, 1997
Filed:
Feb. 13, 1996
Yoshio Fujiwara, Kanagawa, JP;
Etsuro Saito, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An image displaying device which is able to prevent the occurrence of fluctuations in the picture which is projected on the screen, even if some positional fluctuations have occurred in the movie film. The optical axis correcting means is provided on the optical path of the transmitted light which has been obtained from the light source via the movie film, and also the detecting means is provided for detecting the quantity of the displacement from the base position at the time the movie film has stopped on the basis of the travel-synchronizing holes which have been formed in the longitudinal direction of the movie film, whereby the optical axis correcting means is able to change the angle of the optical axis of the transmitted light, according to the result of detection obtained from the detecting means, on the basis of drive controlling by the driving means. As a result the optical axis can be corrected. Thus, an image displaying device can be realized which is able to prevent the occurrence of fluctuations in the picture which is projected on the screen, even if some positional fluctuations have occurred in the movie film.