A bare color-separation beam-splitter prism assembly of the type used in some <a href="https://en.wikipedia.org/wiki/Three-CCD" class="extiw" title="en:Three-CCD">Three-CCD</a> cameras.
<a href="https://en.wikipedia.org/wiki/User:Dicklyon" class="extiw" title="en:User:Dicklyon">Dick Lyon</a>
<a href="https://en.wikipedia.org/wiki/Image:Color_Separation_Prism.jpg" class="extiw" title="en:Image:Color Separation Prism.jpg">en:Image:Color Separation Prism.jpg</a>