CLIAMS:1. A mobile gemstone identification system (100) comprising:
a gemstone holder (104, 202, 302, 402) to hold a gemstone (102);
an optoelectronic assembly (106) comprising,
an illumination device (108) to illuminate the gemstone (102), wherein radiations are incident on the gemstone (102) by the illumination device (108); and
a screen (110) to form a pattern indicative of an optical response of the gemstone (102), in response to the radiations incident on the gemstone (102), wherein the screen (110) is formed as having a plurality of regions (114, 116) having different masses, and the pattern is to be formed substantially on a region (114) having greater mass than other regions (116).
2. The mobile gemstone identification system (100) as claimed in claim 1, wherein the region (114) has a darker shade than the other regions (116) on a surface of the screen (110) facing the gemstone (102).
3. The mobile gemstone identification system (100) as claimed in claim 1, wherein the plurality of regions (114, 116) have different cross-sectional thicknesses.
4. The mobile gemstone identification system (100) as claimed in claim 1, wherein the screen (110) is formed as having a layered structure.
5. The mobile gemstone identification system (100) as claimed in claim 1, wherein the screen (110) has a curvature at least on a surface facing the gemstone (102).
6. The mobile gemstone identification system (100) as claimed in claim 5, wherein the screen (110) has one of a biconvex cross section, a plano-convex cross section, biconcave cross section, and a plano-concave cross section.
7. The mobile gemstone identification system as claimed in claim 1, wherein the optoelectronic assembly (106) comprises an optical device (120) to direct the radiations from the illumination device (108) onto the gemstone (102), wherein the gemstone (102) is non-linearly positioned with respect to the illumination device (108).
8. The mobile gemstone identification system (100) as claimed in claim 1, wherein the gemstone holder (302) is provided on a conveyor belt (300), the conveyor belt (300) having a plurality of gemstone holders (302) provided thereon.
9. The mobile gemstone identification system (100) as claimed in claim 1, wherein the optoelectronic assembly (106) comprises an image capturing device (118) to capture the pattern of the gemstone (102) to be formed on the screen (110).
10. The mobile gemstone identification system (100) as claimed in claim 1 comprising an actuator assembly (404) coupled to at least one of the gemstone holder (104, 202, 302, 402) and the optoelectronic assembly (106), to achieve a relative motion between the gemstone holder (104, 202, 302, 402) and the optoelectronic assembly (106) to position the optoelectronic assembly (106) with respect to the gemstone holder (104, 202, 302, 402).
11. The mobile gemstone identification system (100) as claimed in claim 1, wherein the mobile gemstone identification system (100) is to couple to at least one global database to at least one of verify the gemstone (102) and updating the pattern of the gemstone (102) in the global database, the global database being a central repository having a plurality of certificates for authenticate gemstones stored therein.
12. A method for mobile gemstone identification, the method comprising:
securing a gemstone (102) in a gemstone holder (104, 202, 302, 402);
illuminating the gemstone (102), wherein radiations are incident on the gemstone (102); and
capturing a pattern indicative of an optical response of the gemstone (102) formed on a screen (110), in response to the radiations being incident on the gemstone (102), the screen (110) being formed as having a plurality of regions (114, 116) having different masses, wherein the pattern is to be formed substantially on a region (114) having greater mass than other regions (116).
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