If the pavilion main surface angle, while the pavilion is too deep, prone to butterfly knot-shaped dark area, ie, "bow" phenomenon; if the pavilion main surface angle too small, while the pavilion is too shallow, easy to appear similar to the phenomenon of "fish eyes" situation. The crown angle gem optical effect is obvious. How to decorate the store of the cufflinks?Discussion from the previous section - the fire color formation - is not difficult to see the impact of the crown angle light efficiency is manifested in two aspects: crown point of view affect the light from the crown oblique facets incident angle of incidence and dispersion angle. Crown angle is smaller, the smaller the angle of incidence of the light, and the corresponding dispersion angle decreases, dispersion weakened.
Crown angle of incident light from the inclined facets. The crown angle suitable dispersion strong; crown angle is too small, the dispersion weakened crown point of view affect the light emitted from the crown inclined facets of the incident angle and the dispersion angle. Within the scope of the critical angle, the angle of incidence of emitted light increases as crown angle increases, the corresponding dispersion angle also increases dispersion enhanced role of fire color is more obvious. How to display the cufflinks? However, if the crown angle is too large, will be resorted to shooting light's angle of incidence beyond the critical angle range, and total internal reflection, can not be shot stones, resulting in the loss of light and fire in the crown facets.
Crown of the impact of the incident light angle from oblique facets. The crown angle appropriate light injection crown; the crown angle is too large, light total internal reflection in the crown. Table and tilt the relative size of the small facets of the crown is also an important factor in brightness and fire. How to promote and deal with cufflinks? As shown below, in the case of vertical light irradiated gemstones, color will only crown tilted small facets in order to produce the apparent color of fire, therefore, the larger the table the proportion of tilt a small surface area occupied by the smaller fire the weaker; Conversely, the proportion of the smaller table, the greater the tilt a small surface area to be occupied, the stronger the color of fire.
The size of the facets of the crown on the brightness and color of fire. The table too small, the brightness and fire damage; the table size is moderate, the brightness and fire are good; table is too large, poor color fire. However, with the proportion decreases of the table and fire color enhancement, the brightness will be correspondingly weakened; and a small table to a certain extent, not only the brightness of the damage, the color of fire also damaged. Therefore, the table is not the smaller and more also. The proportion of the table should be the brightness and color of fire to achieve a better balance. How to conduct the recruitment to sell the cufflinks? Is generally believed that Taiwan aspect ratio of 53% to 66% range is appropriate.
Cufflinks shape of cut angle than column. Determine the shape of cut angles and proportions of the cufflinks are many ways to look-up table method, estimation method, by analogy, the theoretical calculations, computer simulation, and here only the first three methods. Can be calculated in accordance with the gem material's refractive index and critical angle cufflinks cut part of the engraved surface angle, the refractive index of the common gem material, the critical angle cufflinks cut angle data in the table below. How to do the cufflinks promotion and other necessary and systematic trainings in order to achieve a win-win goal of the brand with the franchisee dealer? Common gem material, the angle of the crown and pavilion angle. Critical angle of the refractive index of gem material crown protagonist booths protagonist. Look-up table, we can easily obtain the crown angle and pavilion angle data (theoretical value), but the two reference data only for the design crown main surface and the pavilion main surface, the other facet angles and proportions to determine need using other methods.
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