CRT photography apparatus utilizing rotatable lens

#The present invention relates to an apparatus for photographing CRT images on a plurality of frames of film.

#Apparatus are used for photographing on more than one frame of a sheet of film, for example, sectional images of the human body projected on the screen of a CRT by X-ray diagnosis or ultrasonic diagnosis for therapeutic purposes.

#The conventional photographic apparatus of this type include those having the construction shown in FIG. 10. A film 2 is spaced from the screen of a CRT 1 substantially in parallel therewith, and a plurality of lenses 3 corresponding in number to the number of frames of the film 2 are provided between the film 2 and the CRT 1 for projecting images on the CRT 1 onto the frames of the film 2. Shutters 4 provided in front of the lenses 3 are opened in succession to photograph images on the CRT 1 on the plurality of frames.

#FIGS. 1 to 6 show an embodiment of the present invention;

#FIG. 1 is a plan view in section;

#FIG. 2 is a side elevation in section;

#The present invention will be described below with reference to the illustrated embodiments.

#Referring to FIGS. 1 to 3, a case 11 has a front wall 12 formed with a film inlet 13 at its left end and provided with an operation panel 14 toward its right end. Mounted on the operation panel 14 are a power supply switch 15, a shutter button 16, and first to sixth pilot lamps A1 to F1 for indicating the positions of first to sixth frames A to F of the film 17 to be described later.

#A darkroom forming member 18 is in the form of a bottomed tube comprising a tubular wall 19 and a closure wall 20 closing the right end of the tubular wall 19, and is fixedly accmmodated in the case 11. A film accommodating portion 21 is provided adjacent to an opening 22 of the forming member 18 at the left side thereof. Indicated at 20a are ribs of the closure wall 20.