Automatic exposure method and automatic exposure system

Details Automatic exposure method and automatic exposure system Automatic exposure method and automatic exposure system

2007-04-24

2007-04-24

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Electronic circuit

Exposure timer

C378S108000

Reexamination Certificate

active

10496329

ABSTRACT:
The present invention relates to automatic exposure control implemented in imaging by electromagnetic radiation, in particular to automatic exposure control in film-based mammography, which is based on a completely new approach as compared with the solutions currently in use, which utilize adjustment curves and/or tables constructed on the basis of empiric tests. The new approach includes modeling into the AEC system the radiation spectra obtainable from the radiation source as a function of its operating parameters and attenuation of the spectrum as the radiation traverses components of the imaging apparatus. By measuring the thickness of the object to be imaged and knowing the initial spectrum and its calculable behavior, a correspondence between the AEC signal and the desired darkening of the image can be achieved which is based on true density of the object being imaged.

REFERENCES:
patent: 4090084 (1978-05-01), Epstein et al.
patent: 4455669 (1984-06-01), Aichinger et al.
patent: 4763343 (1988-08-01), Yanaki
patent: 5218625 (1993-06-01), Heidsieck
patent: 5347563 (1994-09-01), Heidsieck
patent: 6151383 (2000-11-01), Xue et al.
patent: 6192105 (2001-02-01), Hunter et al.
patent: 6459765 (2002-10-01), Ganin et al.
patent: 6502984 (2003-01-01), Ogura et al.
patent: 6553095 (2003-04-01), Rinaldi et al.
patent: 6754307 (2004-06-01), Brendler et al.
patent: 2002/0085672 (2002-07-01), Ganin et al.
patent: 0 346 530 (1989-12-01), None
patent: 1 004 875 (2000-05-01), None
patent: WO 00/52641 (2000-09-01), None

Affiliated with

Also associated with

Rating

Automatic exposure method and automatic exposure system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic exposure method and automatic exposure system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic exposure method and automatic exposure system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3760077