专利名称：A VARIABLE SIZE PROJECTION SCREEN
APPARATUS WITH A PROJECTION SCREEN
THAT IS PHYSICALLY RESIZABLE IN A
LATERAL DIRECTION ON AT LEAST TWO
DISTINCT LEVELS, AND A SCREEN
ARRANGEMENT FOR USE IN SUCH
APPARATUS
发明人：BERGMAN, Anthonie, H.
申请号：EP99911974.6
申请日：19990415
公开号：EP0993623A2
公开日：
20000419
专利内容由知识产权出版社提供
摘要：A variable size projection screen apparatus comprises image projection means with image feed means and beam generation means, and a screen for imaging the beam. The screen image can be resized in at least two distinctly different sizes. In particular, the screen proper is physically resizable in a lateral direction on at least two distinct levels.
申请人：Koninklijke Philips Electronics N.V.
地址：Groenewoudseweg 1 5621 BA Eindhoven NL
国籍：NL
代理机构：Baele, Ingrid Albertina F.M.
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