| 摘要 |
The invention relates to a projection system for diapositive film strips, comprising an essentially cubic projection box, the front side of which comprises a ground glass plate as screen and in the interior of which a projector and two reflecting mirrors are arranged to project the projecting beam exiting from the projector on to the ground glass plate, characterized in that the illumination means of the projector generating the projecting light is disposed such that its optical axis passing through the optical center of the objective forms an acute angle together with the optical axis of the objective and the principal ray of the projecting beam exiting from the projector is inclined toward that wall of the projection box at which the projector is located.
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