| 摘要 |
FIELD: location of objects. SUBSTANCE: first and second truncated diaphragms are inserted between inverted focusing objective lens and first photodetector and focusing objective lens and second photodetector, unit for range determination is also added. It incorporates two subtracters, two scale-of-two circuits, panel for entry of constants and multiplier. Output of first subtracter is connected through unit for range determination to first input of second subtracter which second input is connected to first output of panel for entry of two constants and which output is connected through scale-of-two circuit to first input of third subtracter having second input connoted to first output of above-mentioned panel for entry of two constants and having output connected to first input of multiplier which second input is coupled to second output of panel for entry of two constants and output connected through output of unit for range determination to input of indicator. EFFECT: increased accuracy of location. |
