STEREOSCOPIC VIDEO IMAGE PROJECTOR

PURPOSE:To make the title device small in size and to reduce weight by using a couple of liquid crystal display devices so as to project a stereoscopic video image on a screen. CONSTITUTION:An angle M of deflecting planes of the 1st and 2nd liquid crystal display devices 1, 2 is selected to be an an...

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Bibliographic Details
Main Authors NAKAI KAZUHIRO, UENO ATSUSHI
Format Patent
LanguageEnglish
Published 14.03.1990
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:PURPOSE:To make the title device small in size and to reduce weight by using a couple of liquid crystal display devices so as to project a stereoscopic video image on a screen. CONSTITUTION:An angle M of deflecting planes of the 1st and 2nd liquid crystal display devices 1, 2 is selected to be an angle in the vicinity of 45 deg. with respect to the horizontal scanning direction and the projected light from the 1st liquid crystal display devices 1 is reflected at least once at a right angle to the horizontal scanning plane of the vertical scanning plane. Then the reflected projection light from the 1st liquid crystal display device 1 and from the 2nd liquid crystal display device 2 is projected overlappingly on a screen 14 after passing through a lambda/4 plate 10 to project a stereoscopic video image. Thus, the size and weight of the equipment are made small.
Bibliography:Application Number: JP19880227124