gem instrument, gem filter, Polariscope, gem gauge, ruby filter, gem refractometer, gemological refractometer, gem tester
Port: SHANGHAI
Minimum Order Quantity: 1 Piece/Pieces
Payment Terms: L/C,T/T,Western Union
Contact Supplier
gem instrument, gem filter, Polariscope, gem gauge, ruby filter, gem refractometer, gemological refractometer, gem tester, Illuminated Loupe, emerald filter, GEM Calper
Chelsea filter XHST1025
This Chealse filter is designed to transmit only deep red and yellow-green light (best obtained under strong electric light). Just hold the filter close to your eye and look at the stones. Multiple stones can be viewed at once. It is helpful with identifying certain red, blue and green stones. Chelsea filters are primarily used for spotting fakes added to colored stone parcels and mixed in jewelry, and to differentiate emerald from emerald look-alikes, it is also useful for checking aquamarine and sapphires.
With the filter emeralds usually appear distinctly red or pinkish in color, while most imitations remain green. In rare cases certain emeralds, most notably from South Africa, may not show any pinkish color at all. A synthetic emerald will react the same as a genuine one.
Model No.: HWB
Features: infrared glasses
1.kinds of infrared glass including HWB1, HWB3,HWB4.
2.accoring to customer requirements.
Model No.:
Features: Our company's produces a variety of quartz plate are widely used in various fields.
Model No.:
Features: Good optical properties, overall reliability testing and good to use for Laser Beam Spliter
Model No.: ND4-ZAB25
Features: name:ND filter glass
1.material:neutral gray glass
2.clear surface quality
3.use in camera lens
4.ensure the quality
Model No.: CB535,CB550,CB565,CB580
Features: kinds of different specification of orange glass, process according to customer's requirements
Model No.: ZB2-BG3
Features: violet filter glass ZB2-BG3
1. high quality
2. high accuracy
3. attractive price
Model No.: mx-o*
Features: optical glasses
Model No.:
Features: 635/650nm laser red glass filter:
Specification: 4.5 * 8 * 1.0mm
Material:RG610
Model No.:
Features: Reflective>99%@420-680nm Size:OME .It's idea for use on optics for reflect visible light.
Model No.:
Features: Good optical properties, hard film+AR Coating, overall reliability testing on 50 Beam Spliter
Model No.:
Features: Reflective>99%@420-680nm Size:OME .It's idea for use on optics for reflect visible light.
Model No.:
Features: 635/650nm laser red glass filter:
Specification: 4.5 * 8 * 1.0mm
Material:RG610