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When selecting optical-grade sapphire plates, it is essential to consider the following five criteria to ensure optimal performance and cost-effectiveness of the product. These criteria include material purity, surface accuracy, transmittance, processing capacity and coating process. Focusing on these key parameters is crucial to avoid compromising core specifications in the pursuit of low prices.

The optical processing of quartz glass presents significant challenges. It is characterized by high hardness and brittleness, rendering the efficiency of traditional processes is relatively low. Some processing methods (such as single-point diamond turning) are not applicable in this case. In optical manufacturing, the core issues revolve around leveraging strengths and avoiding weaknesses, processing quartz...

Although quartz glass differs from silicate materials in terms of chemical composition, it demonstrates unique performance advantages and application value in many aspects. Therefore, it is inaccurate to simply classify quartz glass as part of the silicate group. We should regard it as a new type of inorganic non-metallic material with unique properties and...

Sapphire glass is a superior material for use in lenses when compared with traditional mineral glass or resin lenses. The key benefit of sapphire glass is that it maintains consistent performance over a long period of time. For instance, in the friction test simulating daily use, the number of surface scratches on the glass...

When procuring small-sized quartz plates, it is imperative to be cognizant of their intended application. For instance, quartz plates used for optical windows must be double-sided polished and free of scratches, while the plates used for quartz crystal oscillator bases need to have their warpage and parallelism strictly controlled. The manufacturing of small-sized quartz...

Many optical engineers are often confused when they first come into contact with sapphire plates. Despite being optical windows, sapphire is more expensive and more difficult to process than ordinary glass. What are the reasons for this? This article commences with a review of prevalent cognitive misconceptions and provides comprehensive responses to critical technical inquiries...

Generally speaking, large-diameter quartz tubes refer to transparent quartz glass tubes with an outer diameter of over 100mm. Their manufacturing difficulty is much higher than that of ordinary specifications. Quartz glass is characterized by its high melting point and high viscosity. Conventional tube drawing does not permit the formation of large-diameter tubes in a...