Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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Filing date
Publication date
Application filed by Matsushita Electric Industrial Co LtdfiledCriticalMatsushita Electric Industrial Co Ltd
Priority to JP5485175ApriorityCriticalpatent/JPS5949590B2/en
Publication of JPS51131342ApublicationCriticalpatent/JPS51131342A/en
Publication of JPS5949590B2publicationCriticalpatent/JPS5949590B2/en
PURPOSE:To increase diffraction effect of holography system, recording pattern information such as figures, characters, pictures, etc., with phase plate creating phase pattern according to information input pattern.