Chemical Formula: SiO2
Refractive Index（at 550nm）: 1.47
Transmission Wavelength （nm）: 200～10,000
Melting Point(℃): 1710 (Softing)
Boiling Point (℃) : 2227
Density (g/cm3) : 2.2
Evaporation Source: EB;Ta
Strong Point of our SiO2 materials：
1.Insistantly permanent stable quality.
4.Lead more succeful rate of thin film
A problem which is difficult to solve may occur in the production of optical coating. That is, the properties of the optical components are likely to be affected due to the occurrence of Splash. Components, on which tens of layers coated, and sometimes as much as two hundred layers are possibly used in the lenses specially used for cutting-edge cameras, IC exposure machines and filters for DWDM in communication. In that case, those expensive parts will become waste if holes occur in coatings.Therefore, we have solved this problem from the Aspect of the Material.
Based on the rational design of optical coatings and well-equipped evaporation equipment, SiO2 products made in our company with few or no splashes thanks to the great quality of the material themselves, as they are especially suitable for the heavy current and multi-layer evaporation and their quality have surpassed the counterparts’ in Japan, America and Germany after being used and testified by many large international optical enterprises several years.
The optical evaporation material - SiO2 play a necessary role in the production of optical components such as lenses etc, which is required to use under the condition of producing firmer coatings. Owning to the characteristics of low internal stress and easily coating, it is widely used in the production of filters. Especially in recent years, with the rapid development of the field of optical communication, the filters with several hundred layers of coatings (DWDM parts) are required to be used. Under the circumstances, there aren’t any other materials can replace SiO2 in the coating process. In addition, as the best electrical insulating material, it is a large consumer in LST (large scale integrated circuit) and SLSI (Super Large Scale Integration). And no different it is greatly used on the surface protection thanks to its higher hardness.
Since our optical evaporation material SiO2 enjoys a quiet consistent quality as well as a very high and stable success rate of evaporation film-coating, it has became a kind of high-quality cutting-edge designated material by many optical enterprises in Japan and Germany one after the other. It is chiefly used in optical coating fabrication of lenses and prisms including digital cameras, projectors, copy printers, various microscopes and advanced telescopes as well as all sorts of optical testing equipment and filters of optical communication instruments.
Our SiO2 material can solve the splash & mist problem of your material.
Defect contrast figure of thin film made by SOLIS and other company’s material SiO2 Granules:
Applications for our Evaporation Coating Material (to fabricate the following items):
1.Anti-Reflective Coating (AR Coating):
Lighting Circuit & Stepping Circuit in Steppers of the Medical Apparatus and Instruments, Semiconductor & Liquid Crystal devices
Optical Pickup Device
Stage Optical Equipment
Stage Optical Equipment
Extreme Ultraviolet Lithography
DLP (Digital Light Processing Projector)
Cold Mirror (Similar to Dichroic Mirror, Only Reflection of V-Light)
Medical Instrument & Devices
Anti-high-temperature Lighting Devices
Lighting circuit and stepping circuit in Steppers of the Optical Communication, Semiconductor and Liquid Crystal devices
1) Band Pass filter (BPF)
CWDM Band Pass Filter
Wide Band Pass Filter(ADM in Optical Communication)
2) Low Pass filter (LPF)
Long-wave pass filter(High Cut Filter, HCF)
3) High Pass filter (HPF)
Short-wave pass filter(Low Cut Filter, LCF)
4) Band Elimination filter (BEF)
0.3 - 3
Other size are tailor-made.
0.5 - 1
0.5 - 1
0.5 - 2
Lens Proofing Processing