Topic Structure being simple, while the accurate data to obtain and observe visibly, the shiyubarutsushirudo type reflected objective of the infrared microscope which can measure the infrared spectrum is offered.SolutionsRadiation is done the light which is reflected sample S with concave mirror, 1 next is reflected with convex mirror and 2 condenses in the light condensing dot F. With the shiyubarutsushirudo type reflected objective as for medial axis adjacent light it is the structure which cannot be utilized, the open slot is provided on the median of convex mirror 2 and visible observation unit 3 distribution facilities is done and the light quantity loss does not occur. The cable 3a which is jointed to visible observation unit 3 distribution facilities is done in the light which is used, but distribution facilities it is done in the region whose luminous flux is wide and the light quantity loss barely is. When the particular shiyubarutsushirudo type reflected objective is used with the infrared microscope, without alteration of configuration of optical system and loss of light to be little it is possible to measure the visible observation and the infrared spectrum of the minute part simultaneously. Choice figure Drawing 1
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