Device in which electromagnetic radiation is raised in frequency and apparatus for optically scanning an information plane, comprising such a device

Assignee

• U.S. Philips

Inventors

• Coen T. H. F. Liedenbaum (18 patents)
• Arnoldus L. G. J. Severens (1 patents)
• Ronald R. Drenten (22 patents)
• Michiel Johannes Jongerius (11 patents)

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