| 摘要 |
Normally a cathode ray monitor cannot be employed in a chamber which is shielded against high-frequency interference because of the disturbances in the otherwise shielded chamber produced by the operation of the cathode ray monitor. A display arrangement employing a cathode ray monitor is disclosed, which can be used in a shielded chamber, including a projection picture tube disposed outside of the shielded chamber, a projection disposed inside of the shielded chamber, and an optical imaging arrangement disposed in the beam path between the projection picture tube and the projection screen, the beam path extending through a light-transmissive port in a wall of the shielded chamber.
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