Optical Quartz Glass Light Guide Rods Dia Size Range from 3mm to 100mm

Quartz glass, as an excellent full band optical material, can also be used to make quartz light guides of various dia sizes. Smaller diameter light guide rods can be completed through batch processing. The processing difficulty is relatively small. Therefore, the cost is relatively low. The difficulty of using a large-diameter quartz light guide rod increases significantly. Firstly, the selection of materials must ensure the absence of bubbles and other impurities that affect light transmission. The processing of the initial shape must fully consider the dimensions of the final product in the later stage. Polishing is also a very important step for large-sized light guides. If there are longer sizes, polishing is done by a semi mechanical method. Our company has many years of experience in processing quartz glass light guides of various sizes. Quartz light guide rods can be used for linear light source focusing, pressure bridge rods for single ended halogen lamps, fiber optic lighting, quartz fiber manufacturing, semiconductor silicon wafer processing, etc.

The main characteristics of quartz glass

1. Heat resistance

The softening point of quartz glass is 1730 ℃. It can be used for a long time below 1100 ℃, and the temperature for short time use is up to 1450 ℃.

2. Light transmission

Quartz glass has good light transmittance in the entire optical spectrum from ultraviolet to infrared, and the visible light transmittance is more than 93%, especially in the ultraviolet spectral region, the maximum transmittance can reach more than 80%.

3. Electrical insulation

The electrical resistance of quartz glass is equivalent to 10,000 times that of ordinary glass.

4. Chemical stability

Quartz glass almost don’t react chemically with other acid-base substances except hydrofluoric acid.

5. Thermal stability

Quartz glass has low expansion coefficient, and it can withstand drastic temperature changes.

6. Hardness characteristics

With the hardness of Mohs level 7, the mechanical properties of quartz glass are better than hard glass and ceramics, and the strength of quartz glass improves with the increase of temperature, reaching its maximum when approaching the annealing temperature.