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The devices are prismatic periscopic ones and are designed for observation of the terrain from an objects in the open air at temperatures of +50oС to -50oС. The devices ensure: - safe observation when hitting a bullet on a window;
- tightness of the device and an object at hydrostatic pressure of 0.7atm;
- resistance of optical elements to radiation.
| Specifications | Viewing devices | | TNP-205 | TNP-160 | TNP-B | TNPA-65A | TNP-165A | TNP-370A | | at 2-times reflection | at 4-times reflection | at 6-times reflection | | Total range-of-vision in horizontal plane | 64o | 57o | 49o | 78o | 116o | 140o | 74o | 44o | | Upper range-of-vision in vertical plane | 16o | 5o | 11o | 16o | 14o | - | 13o | 5o | | Lower range-of-vision in vertical plane | -1o | 13o | 16o | 17o | 30o | 17o | 22o | 7o | | Total range-of-vision in vertical plane | 15o | 18o | 5o | 33o | 44o | 35o | 35o | 12o | | Total field-of-vision angle in horizontal plane | 34o | 30o | 28o | 38o | 49o | 52o | 36o | 26o | | Binocular angle of field-of-vision in horizontal plane | - | - | - | - | - | 14o | 10o | 6o | | Field-of-vision angle in vertical plane | 3' | 5.5' | 1.5' | Г | 9' | 6o | 8o | 4o | | Deflection angle of normal beam in vertical plane | - | - | - | - | - | 45o | 20o | - | | Normal beam misalignment in vertical plane | - | - | - | - | - | 65o | 165o | - | | Periscopic power (mm) | - | 205 | - | 160 | 113 | - | - | 370 | | Overall dimensions (mm) | length | 268 | 244 | 177 | 92.5 | 216 | 437 | | width | 164 | 150 | 142 | 118 | 140 | 144 | | height | 140 | 68.7 | 58 | 56.5 | 82 | 52.5 | | Weight (kg) | 4.5 | 3.6 | 2.4 | 0.74 | 2.9 | 5.5 | | Location size (mm) | 136x46 | 140x50 | 133.3x42 | 108x37 | 122x48 | 134x42.5 |
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