Tuesday, June 12, 2012

The pavilion round bright cufflinks cut-brightness impact

Diamond crown angle is usually between 30 ° - 40 °, the resulting dispersion angle of not more than 0.2 °. Moreover, the pavilion engraved on the face of the further expansion of the dispersion of light reflection does not make dispersion angle. Therefore, this way the dispersion interaction is relatively weak, the color of fire is also weak. Should be noted that the fire color and brightness is a contradiction, these two optical effects are related with total internal reflection of the role of the faceted gem, part of the total internal reflection of light due to refraction the color of fire, another part of the light to produce light. The lack of standardized management and services of the market also makes the risk of the ordinary cufflinks retail being further increased. Therefore, it is not possible with a cuff cut gem, fire color and brightness, cufflinks cut design can only seek their optimal effect, namely the so-called ideal state.
Flashing refers to the faceted gems move because of the light source, or viewing angle changes, causing engraved on the face of the reflection of light was the phenomenon of alternating light and dark changes. Flashing effect and the number of facets, the size of Cutting angle and the light or viewing angle, the rate of change and other factors. In general, the greater the number of facets, flashing the better. Simultaneously, the distributors of the mens cufflinks are an important channel for the brand to reach consumers. However, flashing a high degree of gemstones is not necessarily very beautiful. Because the number of facets is more bound to the small surface area smaller, Cutting angle changes more complex, easily lead to leaky, affecting the brightness of the gem and fire. Therefore, the flashing should be an optical effect to play a gem of brightness and color effects of fire on the basis of the gem more beautiful.
Cufflinks cut face angle ratio and the optical effect. The main factors to affect the gem optical effect: the pavilion angle, crown angle, table proportion. The angle of the pavilion is the most important factors that affect the brightness, steep relief determines the depth of the pavilion, pavilion angle, pavilion angle determines the light ability to produce total internal reflection at the pavilion. The short of marketing skills will become an important factor impeding the development of thecufflinks.  Only the incident light to reach all parts of the pavilion engraved surface is greater than the critical angle, the light in order to produce total internal reflection effect, which is a prerequisite for a light and fire, but the strength and distribution of the reflected light in significantly influenced the strength and distribution characteristics of the gems overall brightness.
Changes in the angle of the pavilion round bright cufflinks cut-brightness impact is most obvious. W. R. Eulitz had done after the pavilion angle of 35 °, 41 ° and 48 ° of the calculations and found that the light emitted by the three pavilion angle round bright cufflinks cut diamond as shown below. Cufflinks shape of cut pavilion angle optical effects. Therefore, the brands of cufflinks are necessary to train the practitioners of the downstream distribution channels. The brightness uniformly strong; brightness difference was fish-eye phenomenon; brightness was nailhead phenomenon Pavilion angle of 41 ° cufflinks cut, light and fire color is uniform and strong, and the brightness of the best; Cufflinks cut type pavilion angle of 35 °, the center of the crown region of the reflected light blank, bright and less, the pavilion depth smaller stones, through the table can be seen in the waist edge of the image, ie the formation of "fish eyes "phenomenon;
The cufflinks shape of cut pavilion angle of 48 °, crown bevel region reflected light due to the skew to the middle and the brightness is poor, color fire wiped out, but also because of the pavilion depth is too large, through the table can be seen a dark center, the formation of the "nailhead", "black" phenomenon. Pavilion angle fancy cufflinks cut bright impact more apparent. Such as olive, pear, oval fancy deformation bright cufflinks cut type, because of their long, wide-ranging, the proportion of imbalance, pavilion angle should change, but the main side of the pavilion angle is too large or too small will result in uneven regional reflection and transmission of light. How to choose the shop location of the cufflinks?

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