FIELD: physics.
SUBSTANCE: system contains lens, test object in lens focal plane, illumination assembly including light source and condenser, optic unit in front of the lens and having two channels, sighting and laser, and two wedges rotating about axes of corresponding optic channels of block and fixed in selected position. Besides, system contains recording element consisting of diaphragm junction and optical knot behind which radiant energy receiver is attached. Optic unit is terminal from optical system. Between two wedges of optic unit there is provided rhombus-prism, matching optical axis of sighting and laser channels. Test object is grid-shaped as applied on glass plane-parallel plate. Grid represents transparent areas, namely bisectors and circles against opaque background.
EFFECT: availability of system in the field environment and irradiance measurements in various field points within image area of laser channel of controlled device.
3 cl, 3 dwg
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