| 摘要 |
A pair of mirrors are mounted upon a support frame in front of a cathode ray viewing screen so as to double reflect the images on the screen so that they can be viewed looking downwardly rather than directly at the screen. A support member is provided for the mirrors which enables individual relative adjustment of such mirrors both towards and away from the screen as well as vertically and angularly relative to the screen. This end result is achieved by means of adjustable support rods which fit through elongated slots formed in the support frame as well as elongated slots formed in the mounts for the mirrors. In one embodiment the viewer assembly is supported on top of the CRT assembly with a balancing counterweight being employed to counterbalance the weight of the mirrors and their associated support members. In another embodiment a stand is provided for supporting the viewing aid in front of the screen.
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