| 摘要 |
<p>Colour detecting apparatus (10) suitable for detecting the colour of articles such as gambling chips. The apparatus (10) comprising a diffraction grid (28) for producing a plurality of spectra from light reflected off the article, with a visible detector (34) for measuring the reflective light substantially across the visible spectrum to permit comparison with previously read reflected light across the visible spectrum from an article of a known colour.</p> |
