Yantai ZK Optics Co., Ltd.
Custom fabrication of high precision glass parts. Spirit of enterprise: Integrity, Pragmatism, Innovation, Win-win, Appreciation. Tenet of enterprise: the Supremacy of Customer, the Excellence in
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Slotting Customization Of Fused Silica Glass Plate
Fused quartz plates may be customized with holes, slots, angles and many other machining techniques.
Fused quartz plates can be produced in any size up.
Fused quartz plates can be supplied with various surface finishes
Ground and Polished
Blanchard Ground
Fine Lapped Ground
Sand Blasted
Custom sizes and tolerances are of course, quoted upon request. Custom is what we do.
| Parameter | Standard Grade | Precision Grade | Ultra-precision Grade |
| Dimensional Tolerance | +/-0.2 | +/-0.1 | +/-0.05 |
| Clear Aperture | >80% to >90% | >80% to >90% | >80% to >90% |
| Surface Quality | 80/50 | 60/40 | 40/20 |
| Parallelism | 3 arc min | 1 arc min | 30 arc seconds |
| Wavefront Distortion | 5λper 25mm | 1λper 25mm | λ/4 |
| Protective Bevel | <0.25x45 deg | <0.25x45 deg | <0.25x45 deg |
| Material | Synthetic fused Silica, Fused quartz, IR quartz, Borosilicate glass,Sapphire crystal, K9, B270, etc. | ||
| Shape | Circular, square, triangular, oval, and other shaped windows | ||
| Dimension | Large window, Ultra-thin window, Regular size window | ||
| Precision | Ordinary refractory window, High precision optical window | ||
| Coating | High anti-UV Film, antireflective film, gold, aluminum, silver series quartz glass, quartz UV filter, curved reflector and so on. | ||
Special properties of Quartz Glass:
Extreme wide spectral transmission range from deep UV to middle IR (wider than all other glasses).
Extreme high optical transmission and low optical absorption.
Low variation and disturbance of the refractive index in one solid piece and optical homogeneity from one melt to the next (reproducibility).
High resistance to high intensity laser radiation, which also applies to the UV spectral range (e.g. excimer laser).
High application temperature 1200 degrees C— almost four times higher than ordinary glass.
Low thermal expansion coefficient resulting in an extremely high temperature shock resistance allowing rapid heating & cooling.
Rich experience in quartz glass industry
We have more than 25 years industry experience in quartz glass processing. We specialize in quartz glass capillary tubes and rods, quartz glass substrates, CNC machined quartz, and quartz instruments etc. According to product application, we have good grasp of material properties and adapt the proper material into product application.
Strong technical force in processing and application
Beijing Zhong Cheng Quartz Glass Co., Ltd(ZCQ) is a high-tech manufacturer specializing in the production and customization of quartz glass products and optical glass products. We has excellent technical strength, strong innovation ability and stable product quality. Our processing method is rich, drawing of glass, cold and thermal processing, micro size machining, high precision and difficulty process, combination of multiple processing methods, which guarantee that our product is excellent in all aspects.
Integrity and Quality Assurance
We are well known in quartz glass industry. Quality is the lifeline of enterprise survival and development. Integrity is the source of enterprise reputation, the foundation of standing and the foundation of development. Through unremitting efforts and continuous improvement, we have created a good manufacturing platform of optical glass for customers.