Invention Grant
- Patent Title: Dental x-ray film viewing device
- Patent Title (中): 牙科X光片查看装置
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Application No.: US11527014Application Date: 2006-09-26
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Publication No.: US07431497B2Publication Date: 2008-10-07
- Inventor: James John Lucas , Fereidon Wolfgang Manssuri , Francis J. Lucas
- Applicant: James John Lucas , Fereidon Wolfgang Manssuri , Francis J. Lucas
- Agent Yi Li
- Main IPC: A61B6/14
- IPC: A61B6/14

Abstract:
A dental x-ray film viewing device includes a film reader having a digital video camera and an image display screen connected to the video camera for displaying an enlarged digital image of the x-ray film using signals transmitted directly from the video camera. The film reader includes a film illumination station that has a back-lighted film seat. The film seat includes a translucent plate and a non-transparent film anchoring wafer having an opening complimentary to the x-ray film for seating the x-ray film, and blocking light in an area surrounding the x-ray film. The film reader has a video camera having lens thereof focusing on the film window, and the lens has a distortion at the full field less than 3%. The device provides a substantially enlarged high resolution and high contrast digital image as an accurate representation of the original x-ray film, without digital processing by a computer.
Public/Granted literature
- US20080075231A1 Dental x-ray film viewing device Public/Granted day:2008-03-27
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