发明名称 Photographing device and X-ray photographing system utilizing the same
摘要 A photographing device is provided with a pair of support members positioned in mutually opposed manner across a film, a sensitivity increasing screen mounted on at least one of the paired support members, a sealing member for hermetically sealing a space containing the film and the sensitivity increasing screen, a vacuum pump for reducing the pressure in the sealed space to maintain the film and the sensitivity increasing screen in mutual close contact, and a support member for maintaining the film in a predetermined position between the support member in the sealed space. Thus the sensitizing screen can be securely contacted with the film, and errors in operation are reduced even when the photographing operation is conducted with the film in vertical or inclined position.
申请公布号 US5815548(A) 申请公布日期 1998.09.29
申请号 US19940252536 申请日期 1994.06.01
申请人 CANON KABUSHIKI KAISHA 发明人 SUZUKI, KENICHI;TAGO, AKIRA;MADATE, HARUHISA;KOBAYASHI, MASAAKI
分类号 G03B42/04;(IPC1-7):G03B42/02 主分类号 G03B42/04
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