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JEFFOPTICS WILL ATTAND ZAK GLASS TECHNOLOGY EXPO
Zak Glass Technology Expo will be held in New Delhi, India starting on 09th Dec, 2016.
Our booth NO is Z12.
Welcome to our booth!
JEFFOPTICS WILL ATTAND EURASIA GLASS 2017
EURASIA GLASS 2017 will be hold on 8~11 March in Istanbul, Turkey. Our Stand NO. is 1213C in Hall 12.
Welcome to our Stand!
 
ABOUT US
Beijing Jeffoptics Co.,Ltd. is a company dedicated to R&D glass surface stress measurement instruments. The instruments are applied for chemical tempered glass surface stress measurement and thermal tempered glass surface stress measurement.
 
 
 
 
 
Product
JF-1 Series Surface Stress Meter is for thermal tempered glass stress measurement. JF-2 Series Surface Stress Meter is for chemical tempered glass. JF-3 Series Glass Stress Meter is for thermal tempered glass. They are the best solution for measuring stress in glass.
JF-1 Series Glass Surface Stress Meter
The JF-1 series are developed for measure the surface stress of thermal tempered glass. JF-1 Series glass surface stress meter is a Differential Stress Refractometer (DSR). after several time optimization, operator can complete the operation by adjust only one component.
Refractive Matching Fluid
Refractive Index is 1.54. Suitable for all the glass stress measurement equipment with glass RI less than 1.54. Available in 50CC (one bottle) and 400CC (eight bottles in one box).
Specification
Range: 400MPa
Resolution: ±1.2MPa
JF-2 Series Chemical Tempered Glass Surface Stress Meter
The JF-2 series are developed for measure the surface stress of chemical tempered glass. JF-2E is the Portable Version with PDA. JF-2C is the Compact Version with PC software.
Code and standard
ASTM C 1048, ASTM C 1279, EN 12150-2, EN 1863-2
Feature:
Easy operation
Small size
Manual operation assistant (PC software only)
Specification:
Refractive index range: 1.47~1.53( other RI range customized according to requirement)
Stress :1000MPa
Depth: 100um
Accuracy: 20 Mpa/5um
Light source: 590/750 nm

JF-3 Series Glass Surface Stress Polarimeter
The JF-3 series are developed for measure the surface stress of thermal tempered glass with Laser. JF-3E glass surface stress meter is an enhanced grazing angle surface polarimeter. it takes the advantage of glass optical structure.the light grazing angle is selected by glass itself to be measured. Besides, the receiving mirror is optimized and need no longer horizontal movement. It reduces the operation complexity greatly. The optimized image processing algorithm increases the resolution of stress to 0.1MPa.
Code and standard
ASTM C 1048,ASTM C 1279, EN 12150-2, EN 1863-2
Specification:
Range: 200MPa (customized according to requirement)
Resolution:0.1Mpa
JF-4 Series Chemical Tempered Glass Surface Stress Meter
The JF-4 series are developed for measure the surface stress of chemical tempered glass.
Feature:
Easy operation
Small size
Suitable for the double ion exchange glass
Manual operation
Specification:
Stress :1000MPa
Accuracy: 20 Mpa/5um
Light source: 590 nm

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