Abstract: A vehicle headlamp in which an elongated tubular container having small openings in front and rear ends thereof and filled therein with a drying agent extends through the lamp housing. The size of the small opening at the end of the container which is interior of the lamp housing is smaller than the size of the small opening in the end of the container which is exterior of the lamp housing.

Abstract: An X-ray photographing apparatus includes an X-ray tube for generating an X-ray pulse beam, a shutter for shutting off the X-ray pulse beam which is emitted from the X-ray tube, and a shutter controller for permitting the X-ray pulse beam shut off by the shutter to be passed therethrough when the intensity of the X-ray pulse beam from the X-ray tube reaches a substantially constant level. The apparatus permits the subject to be exposed at all times with a stabilized intensity of X-ray beam.

Abstract: Computed tomography apparatus having a continuously rotating X-ray projection and detection unit and circuits for controlling the X-ray tube to produce a radiation pulse of predetermined amplitude and duration for each increment of angular motion of the rotating unit. The X-ray tube is controlled by high-voltage switching elements which apply a voltage pulse of precisely measured duration from a charging circuit which supplies a controlled level DC voltage for driving the X-ray tube. A main control circuit responds to position indicating signals from the rotating unit to repetitively operate the charging circuit and the switching elements whereby highly reproducible X-ray pulses irradiate a subject under examination to enable generation of high quality sectional images, i.e., tomograms.