| 摘要 |
FIELD: medicine; medical equipment. SUBSTANCE: device has ocular 1 and transparent plate 3 graduated with non-transparent bar scale 4 brightened with disperse light. Optical axis 2 of ocular 1 passes through the center of scale 4. Scale center 5 is in the focus of ocular 1 inclined relative to optical axis 2. The device is provided with contrivance 6 rigidly linked with plate 3. The contrivance is designed for turning the plate through a full revolution round optical axis 2. The device is also provided with scale 7 fixed stationary relative to optical axis 2. Scale 7 is intended for measuring the angular position of plate 3. Ocular 1 may be mounted for movement relative to device casing 12, and it may be provided with a scale. The device is provided with a color flow forming appliance. EFFECT: enhanced operating capability. 6 cl, 2 dwg |
