In the field of optical glass manufacturing, high transmittance thick quartz glass plates are regarded as the "eyes" of precision instruments due to their excellent high temperature resistance and spectral transmittance. As a professional manufacturer of customized quartz products, Luverre Quartz focuses on providing high-purity fused silica glass plates with a diameter range of 5-500mm and a thickness of 2-100mm. We are not only a large-scale production factory, but also a technical partner for global research institutions and industrial customers. Through customized solutions, we solve the problems of light transmission and pressure resistance in high demand optical environments.

Product Frequently Asked Questions (FAQ)

Q1: In high temperature or high pressure environments, ordinary glass plates are prone to bursting and the light transmittance will decrease. Can your product solve this problem?

A: Of course you can. Our thick quartz glass plates are made of raw materials with SiO ₂ purity>99.99%, and have a softening point of up to 1730 ℃. Even when used for a long time at 1100 ℃, it can still maintain stable optical performance and has an extremely low coefficient of thermal expansion, which can withstand drastic temperature differences (rapid cooling from 1100 ℃ to room temperature without bursting), perfectly replacing the heat resistance problem of ordinary glass in high-temperature furnace mirrors and laser equipment.

Q2: I need thick plates of a specific size for deep ultraviolet optical experiments, which cannot be met by standard products on the market. Can you customize them?

A: This is precisely our core service. We support full size customization based on drawings and samples. Whether you require large-sized plates with a diameter of 500mm or precision thin sheets with a thickness tolerance controlled within ± 0.02mm, we can achieve this through precise cutting, polishing, and double-sided polishing processes to ensure that the edges are free of chipping and the surface smoothness meets specific application requirements.

Q3: For thicker products, how can we ensure that the light transmittance does not significantly decrease due to an increase in thickness?

A: This is a technical difficulty in the production of thickened quartz plates. We control the hydroxyl content (OH content) through a unique process and use double-sided polishing technology to reduce light scattering and absorption in thick media. Our visible light transmittance can reach over 93%, and we can provide different levels of quartz materials such as JGS1 (far ultraviolet), JGS2 (ultraviolet), JGS3 (infrared) according to band requirements, ensuring that thick lenses remain "transparent".

Product core advantage: not only thick, but also refined

1. Excellent physical and optical performance

The quartz glass plates we produce have comprehensive advantages that cannot be compared to other materials:

-Ultra high transmittance: covering a transmission range of 185nm to 2500nm, it is the preferred material in fields such as deep ultraviolet optics, photolithography technology, and laser gyroscopes.

-Extremely resistant to high temperature and corrosion: The simple network structure of silicon dioxide makes its chemical properties extremely stable, with acid resistance 150 times that of stainless steel. Whether it is a semiconductor etching environment or a chemical mirror, it can remain stable for a long time.

-Structural stability: Especially for "thickened" products, we eliminate internal stress through special annealing processes to prevent cracking caused by stress concentration during processing or use.

2. Flexible customized specifications

We are well aware that the needs of our global customers vary greatly, so we provide customized services that are both small and refined

-Geometric shapes: circular (diameter 5-500mm), square (maximum up to 700 * 700mm), rectangular, and various anisotropic edges.

-Thickness range: Mainly available in 2mm to 100mm thick specifications, special requirements can be negotiated.

-Edge processing: Cutting edges, fine grinding edges, or fire polished edges can be provided according to requirements to ensure installation safety.

-Accuracy control: The diameter tolerance can reach 0.1mm, and the maximum thickness tolerance can be controlled within ± 0.02mm.

Customer Application Cases

Case 1: A semiconductor equipment refurbishment company in Germany

-Requirement: The customer needs to replace the mirror window on the old semiconductor etching machine. The original window is an imported component with a thickness of 15mm. It is required to be resistant to the corrosion of chlorine containing plasma and maintain high transmittance in a vacuum environment for observing the situation inside the cavity.

-Solution: We recommend JGS2 grade high-purity thickened quartz glass plates, using double-sided polishing technology and strictly controlling diameter tolerances to ensure precise fit with metal flanges.

-Final effect: After installation, the sealing performance is excellent. After 200 hours of continuous actual operation testing, there are no corrosion marks on the lens, and the transmittance attenuation is less than 0.5%. This helped the customer complete the equipment refurbishment at a cost 40% lower than the original parts.

Case 2: Laser Physics Laboratory at a Nordic university

-Requirement: The research team requires a JGS1 quartz plate with a thickness of 25mm as the output window for conducting high-energy laser conduction experiments. This window needs to withstand high-energy density laser impact and cannot generate stray light to interfere with experimental data.

-Solution: We use low hydroxyl synthetic quartz raw materials, eliminate deep stress through fine annealing, and ensure consistent band transmittance at a thickness of 25mm.

-Final effect: The window perfectly adapts to the experimental optical path, not only withstanding the thermal shock of the laser, but also ensuring the accuracy of the experimental data due to the extremely high purity of the material, which does not produce any fluorescence effect.

Whether it's standard optical windows or complex shaped quartz processing parts, we can provide factory direct sales prices and exquisite craftsmanship to safeguard your global business.

If you need to purchase high transparency thickened quartz glass plates, please contact us to provide drawings or specifications for quotation and samples!

Luverre Quartz is a manufacturer focusing on producing various quartz plates, we can produce customized quartz plates in different sizes and shapes, such as square, round, oval and other special shaped designs according to customer's requirements. The processing includes cutting, bending, welding, etc., and there are different colors available, such as transparent quartz plates, opaque quartz plates, milky quartz plates and so on.

Why choose us?

1.We are more experienced.

We have over 19 years production experience of quartz items.

2.We are more efficient.

We reply customers’ requests within 24 hours and we have high efficient production, engineers and sales team.

3.Our quality is more guaranteed.

We control the quality from quartz lumps to quartz sand and then quartz products, we have better and stricter quality control than other manufactures.

4.We are able to produce more difficult quartz products.

We have large grinding platforms and precision etching machines which enable us to manufactures and sells a wide range of high quality quartz glass, including quartz tubes, quartz plates, quartz rods, quartz windows, quartz crucibles, quartz boats, quartz flanges, quartz beakers, quartz glass instruments, and more.

5. About 20 years of professional experience

-Focusing on the manufacturing of quartz products for a quarter century

-The average working experience of the technical team exceeds 15 years

6.Global Service Network

-Our products are exported to over 40 countries and regions including Europe, America, Japan, South Korea, and the Middle East

-Multi language technical support (English, German, French, Spanish, Russian, Japanese)

7. Flexible cooperation mode

Support small batch trial orders, medium - and long-term cooperation, and urgent production for urgent orders, providing OEM/ODM services.