发明授权
- 专利标题: Image reading device
- 专利标题(中): 图像读取装置
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申请号: US09630392申请日: 2000-08-01
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公开(公告)号: US06552778B1公开(公告)日: 2003-04-22
- 发明人: Tatsuya Konagaya
- 申请人: Tatsuya Konagaya
- 优先权: JP11-218368 19990802; JP11-248382 19990902
- 主分类号: G03B2772
- IPC分类号: G03B2772
摘要:
A CCD scanner is provided with a halogen lamp for irradiating illumination light for reading a frame image on a photographic film, and a halogen lamp for irradiating infrared light via an infrared light filter for detecting scratches and the like on the film surface, and the optical axes of the respective light sources are coincided by a half mirror. A diffusion plate turret is also provided for selectively placing each of a plurality of diffusion plates for diffusing the illumination light near the photographic film. As a result, it is possible to perform both an image reading that doubles as an erasure of scratching on the film surface using visible light having different degrees of diffusion and a detection of scratches and the like using infrared light.
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