Identification device for distinguishing natural diamonds, synthetic diamonds and moissanite based on reflection method

Abstract

The invention discloses an identification device for distinguishing natural diamonds, synthetic diamonds and moissanite based on a reflection method. The identification device comprises a lower cover, a middle frame and an upper cover. And a circuit board is arranged in the lower cover and is also connected with an ultraviolet light source and an ultraviolet spectrograph. The ultraviolet light source comprises a first light source and a second light source, the wavelength of the first light source is 250nm-280nm, and the wavelength of the second light source is 350nm-390nm. A Y-shaped optical fiber tube is further arranged in the lower cover, the first end of the Y-shaped optical fiber tube is right opposite to the ultraviolet light source, the second end of the Y-shaped optical fiber tube is connected with the ultraviolet spectrometer, and the third end of the Y-shaped optical fiber tube penetrates out of the middle frame and abuts against the surface of the diamond to be identified. The device has the beneficial effects that the device can quickly and accurately distinguish natural diamonds, synthetic diamonds and moissanite, and the distinguishing accuracy can reach 99% or above. Moreover, the device is small in overall size, convenient to carry, simple to operate, low in manufacturing cost and particularly suitable for diamond manufacturers, jewelry manufacturers, detection stations and the like with large usage amounts.

Description

Technical field [0001] The present invention relates to the technical findings of diamond differential, and in particular, to a differential device based on reflecting method to distinguish native diamonds, synthetic diamonds and mozambique. Background technique [0002] Diamond identification devices commonly used in the existing market have the following: [0003] The first is to use 10 to 20 times amplifier to directly nake the characteristics of the naked eye observation characteristics, using the magnifying glass to identify the observer that needs the corresponding professional ability to accurately discover natural diamonds. [0004] The second is to identify the Diamondsure diamond confirmation, which mainly detects the absorption line identified at 415 nm. This instrument can quickly accurately detect most of natural diamonds, but there is about 10% of natural diamonds without 415 nm The absorption line at the place, this part will be misjudic to non-natural diamonds, an...

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Problems solved by technology

[0004] The second is to use the DiamondSure diamond confirmation instrument to identify. This instrument mainly detects the absorption line of the identified diamond at 415nm. This instrument can quickly and accurately detect most natural diamonds, but about 10% of natural diamonds do not have 415nm The absorption line at the place, this part will be misjudged as a non-natural diamond, and the misjudgment rate is too high

Moreover, the price of this instrument is expensive, ranging from at least hundreds of thousands each

[0005] The third is to use a thermal conductivity meter to identify diamonds. The thermal conductivity meter uses the thermal conductivity of diamonds to identify diamonds, but it can only identify diamonds and their imitations, and cannot distinguish synthetically processed diamonds.

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