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.)
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Sony Corp
Original Assignee
Sony Corp
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Filing date
Publication date
Application filed by Sony CorpfiledCriticalSony Corp
Priority to JP13593877ApriorityCriticalpatent/JPS5469014A/ja
Publication of JPS5469014ApublicationCriticalpatent/JPS5469014A/ja
Publication of JPS6114710B2publicationCriticalpatent/JPS6114710B2/ja
Method of and an apparatus for producing a required visual signal for direct observation from a first source of light in the presence of a second source of light