| 摘要 |
An illumination means for use for an electrographic reproduction machine, and in which a single light source 12 is used in combination with a first 14 and a second 26 elliptical mirror for supplying direct and reflected light as a narrow illuminating band, and in which a third flat mirror 32 is used to reflect a part of the light from the light source 12, which would otherwise be guided into such a narrow band, back to the first 14 and the second 20 mirror in order to be reflected into the narrow band and in order to balance direct and reflected light. In this way, the otherwise unused light can be used to increase the quantity of reflected light, to compensate for transmission loss and to balance the reflected light and the direct light incident upon a predetermined area 20. In this way, shadow formation is counteracted. <IMAGE>
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