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Priority to JP10016375ApriorityCriticalpatent/JPS5224583A/ja
Publication of JPS5224583ApublicationCriticalpatent/JPS5224583A/ja
Publication of JPS547592B2publicationCriticalpatent/JPS547592B2/ja
G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited