| 摘要 |
PURPOSE:To form respective optical images obtained by resolving an optical image of an object formed through an image pickup lens into at least two or more optical images having different wavelength areas on the same plane at unmagnification in the same direction by arranging full reflection mirrors on respective optical paths. CONSTITUTION:The 1st image forming face Ig forming the 1st optical image based upon the 1st optical image based upon light transmitted through both two dichroic mirrors Dr, Db and the 2nd and 3rd image forming faces Ir, Ib forming the 2nd and 3rd optical images based upon light reflected by the two dichroic mirrors Dr, Db are adjacently arranged like a straight line on the same plane and three full reflection mirrors Mb1-Mb3 are respectively arranged in the optical paths of the two dichroic mirrors and the 2nd and 3rd image forming faces. On the other hand, four full reflection mirrors Mg1-Mg4 are arranged in the optical path up to the 1st image forming face Ig based upon the light transmitted through both the two dichroic mirrors. Consequently, respective optical images are formed on respective image forming faces on the same plate at the unmagnification and in the same direction.
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