Diamond identification apparatus
AssigneeJubilee Diamond Instrument (S) Pte. Ltd.
InventorKui Lim Tam
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Abstract
A diamond identification apparatus is disclosed, the diamond identification apparatus comprising a support platform for receiving a gemstone at an observation position, a first light source arranged to emit light at a predetermined angle towards the observation position and a first photodiode arranged to detect an amount of light from the first light source being reflected from the gemstone at the observation position. The diamond identification apparatus further comprises a second light source arranged to emit light towards the observation position, a second photodiode arranged to detect light from the second light source that passes through the gemstone at the observation position and a processor unit.
Claims16
A diamond identification apparatus comprising:
- a support platform for receiving a gemstone at an observation position;
- a first light source arranged to emit infrared light at a predetermined angle towards the observation position;
- a first photodiode arranged to detect an amount of the infrared light from the first light source being reflected from the gemstone at the observation position;
- a second light source arranged to emit ultraviolet light towards the observation position;
- a second photodiode arranged to detect a presence of the ultraviolet light from the second light source that passes through the gemstone at the observation position;
- and
- a processor unit;
- wherein the processor unit is configured to:
- determine whether the gemstone is a diamond in response to the amount of the infrared light detected by the first photodiode;
- and
- if the gemstone is determined to be a diamond, then determine whether the diamond is natural in response to the second photodiode not detecting the presence of the ultraviolet light,
- wherein the processor unit determines that the gemstone is a diamond by calculating a reflectivity value in response to the amount of the infrared light detected by the first photodiode, and cross-referencing the reflectivity value with reference data.
A sensor module for use in a diamond identification apparatus, the sensor module comprising:
- a first light source arranged to emit infrared light at a predetermined angle towards an observation position that is provided for receiving a gemstone;
- a first photodiode arranged to detect an amount of the infrared light from the first light source being reflected from the gemstone at the observation position, and for sending readings of said amount to a processor unit of the diamond identification apparatus;
- a second light source arranged to emit ultraviolet light towards the observation position;
- and
- a second photodiode arranged to detect a presence of the ultraviolet light from the second light source that passes through the gemstone at the observation position, and for sending readings of said presence to the processor unit of the diamond identification apparatus.
Dependencies are inferred from the claim text.