X線撮影装置
- 专利权人:
- 株式会社島津製作所
- 发明人:
- 藤井 英樹
- 申请号：
- JP2006299803
- 公开号：
- JP5309438B2
- 申请日:
- 2006.11.06
- 申请国别(地区):
- JP
- 年份:
- 2013
- 代理人:
- 摘要：
To provide an X-ray photographing apparatus capable of providing a properly-exposed film photograph even when the position of a lighting field is improper and an X-ray is directly received in a case where automatic exposure photographing is executed by selecting a plurality of lighting fields at the same time.
SOLUTION: When an AND control method is used as an automatic exposure control method, and automatic exposure photographing of the front side of a chest part is executed and an X-ray is not blocked until an integration value of an electric signal ON a lighting field right side 41a reaches an appropriate value set for the lighting field right side 41a without having a heart even if a lighting field left side 41b directly receives the X-ray because the position of the lighting field is not appropriate. ON the other hand, when the lighting field right side 41a directly receives the X-ray and the X-ray is not blocked until an integration value of an electric signal ON the lighting field left side 41b reaches an appropriate value set for the lighting field left side 41b having the heart. Accordingly, since the X-ray is blocked at appropriate timing in both the cases and the automatic exposure control is properly executed and a film photograph of appropriate exposure can be provided.
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- 来源网站：
- 中国工程科技知识中心
