| 摘要 |
<p>PURPOSE:To change the incident direction of light beams which are made incident on an optical system from an image pickup object by a simple constitution by using a rotary refracting body for refracting incident light beams which are made incident on the optical system in the prescribed direction. CONSTITUTION:The title device is provided with a prism 9 for refracting incident light beams which are made incident on an optical system 1, and a rotation driving mechanism 10 for rotating this prism 9 around an optical axis L1 of the incident light beams. When the prism 9 is rotated around the optical axis L1 by driving this rotation driving mechanism 10, the incident direction of light beams which go into the optical system 1 is changed. In such a way, the structure of a two-dimensional image signal processing part 5 can be simplified, and also, the incident direction of the light beams which go into the optical system from an image pickup object can be changed by a rotary mechanism part of a comparatively simple structure, the reliability is improved and the device can be made light in weight.</p> |
