Hongkong and Shanghai Total Co., Ltd. is specialized in producing and exporting Measurement & Meter, anemometer, dew point meter, dewpoint meter, portable dewpoint meter,and so on.
Refractive index is one of most important optical parameter. Gloss of gem can be estimated by the parameter.
The kinds of gem can be precisely determined in accordance with the measured value of refractive index because every kind of gem has its inherent refractive. Besides, index of double refraction can be also measured. Through the parameter you can judge whether a gem is uniaxial or biaxial photopositive or photonegative.
The gemological refractometer is characterized by small volume and less weight. It is easy to carry. It is a popular instrument used in jewelry market.
Product Specification
Model Range Min.Div.
RHG-181 Refractive Index: 1.30-1.81 Refractive Index: 0.01
RHG-185 Refractive Index: 1.35-1.85 Refractive Index: 0.002
| Product Name: |
RHG600 |
Product Explains
This model is Gemological refractometer. It can be used for measuring Refractive index of Gemstone or Ore. The index of double refraction can be also measured. Through the parameter you can judge whether a gem is uniaxial or biaxial photopositive or photonegative.
Scale range:1.30-1.81 RI
Minimum Division: 0.01RI |
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| Product Name: |
RHG700 |
Product Explains
The kinds of gem can be precisely determined in accordance with the measured value of refractive index because every kind of gem has its inherent refractive index. Besides, index of double of refraction can be also measured. Through the parameter you can judge whether a gem is uniaxial or biaxial photopositive or photonegative.
The gemological refractometer is characterized by small volume and less weight. It is easy to carry. It is popular instrument used on jewelry market. The model RHG-700 is equipped with a built-in light source . It is more convenient to test!
Specification:
Range: 1.30-1.81RI
Minimum Division: 0.01
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| Product Name: |
RHG800 |
Product Explains
The kinds of gem can be precisely determined in accordance with the measured value of refractive index because every kind of gem has its inherent refractive index. Besides, index of double of refraction can be also measured. Through the parameter you can judge whether a gem is uniaxial or biaxial photopositive or photonegative.
RHG800 is characterized by small volume and less weight. It is easy to carry. It is popular instrument used on jewelry market
RHG-800 is equipped with torch .
Specification:
Range: 1.30-1.81RI
Minimum Division: 0.01
Accuracy: ±0.02
Size: 115 x 35 x 63mm
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| Product Name: |
RHG900 |
Product Explains
This model can be precisely determined in accordance with the measured value of refractive index because every kind of gem has its inherent refractive index. Besides, index of double of refraction can be also measured. Through the parameter you can judge whether a gem is uniaxial or biaxial photopositive or photonegative.
The gemological refractometer is characterized by small volume and less weight. It is easy to carry. It is popular instrument used on jewelry market. This RHG-900 is a professional model for issuing the certificate for gemstones. It is most popular used om labs and jewellery insitutes. Our RHG-900 is the first choice for issuing certificates for gemstones!
Specification:
Range: 1.30-1.81RI
Minimum Division: 0.01 RI
Accuracy: ±0.02 RI |
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