| 摘要 |
<p>The present invention has its application in life-saving services, guarding services, and in various other human activities. Its embodiment provides a possibility for stereo-observation and photographing in various scales, and comprises a minimum number of building elements. In the described optical device a high level of utilization of said elements is achieved. Therefore, the device satisfies needs and can be used for functions normally executed by separated working devices with a larger total weight and size. Said device comprises a two-parted photographic lens (3) having one part (2) in the camera's body (1) and being connected in parallel and movably to a camera sight (5). The connection between the two parts (2, 4) of photographic lens (3) is provided by a dismountable joint (6) which enables the body (1) to be located in three stable positions.</p> |
