Ruby filter RF100
40,00 €
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Available from stock
Color filter for assessing cut and uncut red and pink stones, makes color changes visible
Availability: In stock
Discription
Ruby filter
Colour filters allow observations in the range of special wavelengths, e.g. in the red range at 690 nm and in the yellow range at 570 nm. The view through the filters lets some stones appear in different colours and helps to distinguish between gemstones. These filters are also a valuable tool in the assessment of gemstone lots.
Technical details:
■ Grey painted metal housing with optical glass
■ Filter glass: Ø 18 mm
■ Dimensions (W×W): 45 mm x 50 mm
■ Weight: approx. 21 g
Practical examples of the application of color filters can be found, for example, in the article: Detecting counterfeits with color filters.
More information on the examination method with the Chelsea filter or with the Rubin filter can be found in the color filter method article.
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