| 摘要 |
PURPOSE:To observe or photograph an object even in muddy fluid by providing a sack made of transparent flexible material adjacent to the face of an observing or photographing device main body and filling the sack with transparent fluid. CONSTITUTION:In order to observe or photograph the object, proper devices such as a fiberscope, a periscope type optical observing device, a television camera and a remote control photographing camera, etc., are used as a main body and the sack made of transparent flexible material is provided adjacent to the front window of the device main body ahead of it, then the sack is filled with the transparent gas or the transparent fluid. For example, if the device is inserted into the boring hole, the sack positioned at lower end tightly adheres to the surface of the object as it removes bentonite water gathered in the hole. Therefore, the object can be observed or photographed through the wall of the sack by means of the device main body. |
