 |
Soda Glass balls
Soda glass is the most common glass and is used in a wide variety of items such as window glass, glass jars,
dishes and many other glass products.
Soda glass balls are used for plastic bearings, churning balls in sealed containers, etc.
|
Characteristics of Soda Glass
| Characteristics |
Unit |
|
|---|
| Gravity |
g/cm3 |
2.5 |
| Hardness |
Mnoop hardness |
5 - 6.5 |
| Softening Temperature |
°C |
720 - 730 |
| Thermal Conductivity |
Cal/m•h°C |
0.68 |
| Linear Expansion Coefficient |
x10–6/°C |
8.5 - 9.0 |
| Compressive Strength |
kg/cm2 |
6000 - 12000 |
|
|
 |
Optical Glass balls
Based on the growth of opto-electronics and optic fiber, optical glass are used
as the ball lens for the optical branching filters and optical insertion devices.
Optical glass balls are manufactured by the glass with various compositions for the optical usages.
One of the characteristics of optical glass is constant purity.
It does not have the defects such as air bubbles and striae that prevent the optical transmission and refraction.
Optical glass balls are used in a wide variety of areas such as ball lenses, sensors, joints for optic fiber,
blanks of aspheric lenses.
|
Optical Glass Comparison Chart
| Characteristics/Form |
BK-7 |
EC-GLASS |
B270 |
|---|
| Refractive Index |
1.516 |
1.523 |
1.523 |
| Gravity |
2.52 |
2.50 |
2.55 |
|
