| 摘要 |
<p>Wavelength Selector A wavelength selector (20) to receive light from a broad spectrum source, the selector comprising a first dispersion element (23), to receive a beam of light (21) from a broad spectrum source and generate a dispersed beam (25), and a mask (27) to selectively pass a part of the dispersed beam, which is then recombined by dispersion element (23) into an output beam (29).</p> |
