| 摘要 |
The present invention relates to an illuminating or indicating device, including at least two light sources, each light source being associated with a first optical system. According to the present invention, each first optical system, at finite distance, forms a real image of the light source, the images of the light sources being coincident at a common point constituting a secondary source, and a second optical system having an optical axis passing through the secondary source forms an illuminating or indicating beam from this secondary source.
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