| 摘要 |
PURPOSE:To enable simultaneous observation of the entire image and a partial image by having a device which observes a space image via an objective lens and a device for operating an optical path which conducts a part of the light incident from said objective lens to another optical path. CONSTITUTION:The light which is made incident in an arrow (a) direction from the representative point 10 in a space image 1 through an objective lens 2 is made incident to a small mirror 7 and is reflected by said mirror so as to enter a microscope 5 and to form the image thereon. On the other hand, the light which is made incident from the image 1 through the lens 2 and is not captured by the mirror 7, for example, the light emitted from a representative point 13 advances straight through a transparent plate 6 along the optical path 14 and forms the image on an image pickup tube 5. The simultaneous observation of the entire image except the part near the point 10 by the tube 3 and the magnified image near the point 10 by the microscope 5 is thus made possible. |
