dichroic prism
...that a dichroic prism splits light into two beams of different color, or wavelengths?
...that a <b id="mwA5w"><a href="./Dichroic_prism" id="mwA50" rel="mw:WikiLink" title="Dichroic prism">dichroic prism</a></b> splits <a href="./Light" id="mwA54" rel="mw:WikiLink" title="Light">light</a> into two beams of different <a href="./Color" id="mwA58" rel="mw:WikiLink" title="Color">color</a>, or <a href="./Wavelength" id="mwA6A" rel="mw:WikiLink" title="Wavelength">wavelengths</a>?