X-ray or gamma ray systems or devices – Auxiliary data acquisition or recording – Patient or exposure data
Patent
1994-05-19
1996-10-15
Porta, David P.
X-ray or gamma ray systems or devices
Auxiliary data acquisition or recording
Patient or exposure data
378165, G03B 4204
Patent
active
055662226
ABSTRACT:
A cassette containing an x-ray film with a latent image is placed in a camera having a memory which receives data relating to the image. The cassette is provided with a window which is closed by a cover and, once the cassette is in the camera, the window is sealed from external light. A moving mechanism then slides away the cover to open the window. The moving mechanism carries a printed circuit board which supports the memory, two parallel rows of LEDs and a microprocessor connected to the memory and the LEDs. The rows extend perpendicular to the direction of movement of the moving mechanism, and the LEDs of the rows are offset relative to one another. After the window has been opened completely, the moving mechanism begins to close the window. As the window closes, the microprocessor activates the LEDs so that the latter print the data in the memory on the portion of the film in the window. The LEDs emit light which has an intensity maximum in the wavelength range of 400 nm to 510 nm and is thus capable of exposing x-ray film sensitive to green light as well as x-ray film sensitive to blue light.
REFERENCES:
patent: 4731624 (1988-03-01), Nagata et al.
patent: 4810623 (1989-03-01), Kokelenberg et al.
patent: 4860330 (1989-08-01), Strommer et al.
patent: 4918497 (1990-04-01), Edmond
patent: 5288977 (1994-02-01), Amendolia et al.
Schaller Hans
Widemann Ernst
AGFA-Gevaert AG - Fototechnik
Bruce David Vernon
Porta David P.
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