Examination apparatus for examining nuclear fuel rod of underwater nuclear reactor, has optical reflection device comprising optical reflection element for reflecting light rays and directing reflected light rays to image pickup device

摘要

The apparatus (6) has an image pickup device (16) comprising an optical input (20) with an entrance optical axis (AA). Another image pickup device (22) comprises a sensor (30) and an optical lens (28) that is provided with an optical image pickup axis (BB). An optical reflection device (24) is arranged between the input and the latter image pickup device and comprises a single optical reflection element (32) for reflecting light rays entering the input and directing the reflected light rays to the latter image pickup device. The former image pickup device comprises a water-tight compartment. The water-tight compartment is filled with water or a mixture of water and alcohol, and the image pickup devices are designed as cameras or standard cameras. The optical reflection element is designed as a prism or a mirror. The sensor is designed as a complementary metal-oxide-semiconductor (CMOS) sensor.