| 摘要 |
FIELD: physics.SUBSTANCE: method involves simultaneous formation of two fields of view with coaxially arranged objective lens for forming a first field of view and a double-mirror system for forming a second field of view. The double-mirror system 10 is placed in front of the narrow-angle objective lens 30 on its axis of view, said double-mirror system having two oppositely directed convex mirrors 11 and 12 with openings and a light filter 20 for aligning light flux behind said mirrors. The two convex mirrors 11 and 12, together with the narrow-angle objective lens 30, form a peripheral, second field of view which is an annular zone 13 in the focal plane, said zone tightly adjoining the image of a narrow field of view 14, wherein both images of the narrow field and the annular zone are projected on one photodetector array 40.EFFECT: simultaneous observation of images of a circular zone and a narrow field of view in one focal plane of one photodetector array.5 dwg |
